DE10235753A1 - Odorizing methane-rich fuel gases, especially natural gas, comprises adding a mixture of two to six alkyl (meth)acrylate esters - Google Patents
Odorizing methane-rich fuel gases, especially natural gas, comprises adding a mixture of two to six alkyl (meth)acrylate esters Download PDFInfo
- Publication number
- DE10235753A1 DE10235753A1 DE10235753A DE10235753A DE10235753A1 DE 10235753 A1 DE10235753 A1 DE 10235753A1 DE 10235753 A DE10235753 A DE 10235753A DE 10235753 A DE10235753 A DE 10235753A DE 10235753 A1 DE10235753 A1 DE 10235753A1
- Authority
- DE
- Germany
- Prior art keywords
- acrylic acid
- acrylate
- ester
- alkyl
- mixtures
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 239000000203 mixture Substances 0.000 title claims abstract description 59
- 239000002737 fuel gas Substances 0.000 title claims abstract description 38
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims description 22
- 239000003345 natural gas Substances 0.000 title claims description 7
- 150000001252 acrylic acid derivatives Chemical class 0.000 title 1
- 125000000217 alkyl group Chemical group 0.000 title 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims abstract description 21
- 238000000034 method Methods 0.000 claims abstract description 6
- 125000005395 methacrylic acid group Chemical group 0.000 claims abstract description 3
- BAPJBEWLBFYGME-UHFFFAOYSA-N Methyl acrylate Chemical compound COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 claims description 53
- JIGUQPWFLRLWPJ-UHFFFAOYSA-N Ethyl acrylate Chemical compound CCOC(=O)C=C JIGUQPWFLRLWPJ-UHFFFAOYSA-N 0.000 claims description 30
- PNJWIWWMYCMZRO-UHFFFAOYSA-N pent‐4‐en‐2‐one Natural products CC(=O)CC=C PNJWIWWMYCMZRO-UHFFFAOYSA-N 0.000 claims description 23
- 239000003205 fragrance Substances 0.000 claims description 20
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 claims description 17
- 239000003963 antioxidant agent Substances 0.000 claims description 16
- 239000007789 gas Substances 0.000 claims description 15
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 claims description 13
- 150000002148 esters Chemical class 0.000 claims description 12
- 230000003078 antioxidant effect Effects 0.000 claims description 10
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 claims description 9
- FEUFEGJTJIHPOF-UHFFFAOYSA-N 2-butyl acrylic acid Chemical compound CCCCC(=C)C(O)=O FEUFEGJTJIHPOF-UHFFFAOYSA-N 0.000 claims description 8
- SOGAXMICEFXMKE-UHFFFAOYSA-N Butylmethacrylate Chemical compound CCCCOC(=O)C(C)=C SOGAXMICEFXMKE-UHFFFAOYSA-N 0.000 claims description 8
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims description 7
- CFVWNXQPGQOHRJ-UHFFFAOYSA-N 2-methylpropyl prop-2-enoate Chemical compound CC(C)COC(=O)C=C CFVWNXQPGQOHRJ-UHFFFAOYSA-N 0.000 claims description 7
- -1 alkyl acrylic acid Chemical compound 0.000 claims description 7
- PNXMTCDJUBJHQJ-UHFFFAOYSA-N propyl prop-2-enoate Chemical compound CCCOC(=O)C=C PNXMTCDJUBJHQJ-UHFFFAOYSA-N 0.000 claims description 6
- ZVYGIPWYVVJFRW-UHFFFAOYSA-N 3-methylbutyl prop-2-enoate Chemical compound CC(C)CCOC(=O)C=C ZVYGIPWYVVJFRW-UHFFFAOYSA-N 0.000 claims description 5
- SUPCQIBBMFXVTL-UHFFFAOYSA-N ethyl 2-methylprop-2-enoate Chemical compound CCOC(=O)C(C)=C SUPCQIBBMFXVTL-UHFFFAOYSA-N 0.000 claims description 5
- 239000003915 liquefied petroleum gas Substances 0.000 claims description 4
- LYBIZMNPXTXVMV-UHFFFAOYSA-N propan-2-yl prop-2-enoate Chemical compound CC(C)OC(=O)C=C LYBIZMNPXTXVMV-UHFFFAOYSA-N 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 3
- ULDDEWDFUNBUCM-UHFFFAOYSA-N pentyl prop-2-enoate Chemical compound CCCCCOC(=O)C=C ULDDEWDFUNBUCM-UHFFFAOYSA-N 0.000 claims description 3
- NHARPDSAXCBDDR-UHFFFAOYSA-N propyl 2-methylprop-2-enoate Chemical compound CCCOC(=O)C(C)=C NHARPDSAXCBDDR-UHFFFAOYSA-N 0.000 claims description 3
- ISXSCDLOGDJUNJ-UHFFFAOYSA-N tert-butyl prop-2-enoate Chemical compound CC(C)(C)OC(=O)C=C ISXSCDLOGDJUNJ-UHFFFAOYSA-N 0.000 claims description 3
- LNMQRPPRQDGUDR-UHFFFAOYSA-N hexyl prop-2-enoate Chemical compound CCCCCCOC(=O)C=C LNMQRPPRQDGUDR-UHFFFAOYSA-N 0.000 claims description 2
- BOQSSGDQNWEFSX-UHFFFAOYSA-N propan-2-yl 2-methylprop-2-enoate Chemical compound CC(C)OC(=O)C(C)=C BOQSSGDQNWEFSX-UHFFFAOYSA-N 0.000 claims description 2
- 125000005907 alkyl ester group Chemical group 0.000 claims 2
- ULYIFEQRRINMJQ-UHFFFAOYSA-N 3-methylbutyl 2-methylprop-2-enoate Chemical compound CC(C)CCOC(=O)C(C)=C ULYIFEQRRINMJQ-UHFFFAOYSA-N 0.000 claims 1
- LNCPIMCVTKXXOY-UHFFFAOYSA-N hexyl 2-methylprop-2-enoate Chemical compound CCCCCCOC(=O)C(C)=C LNCPIMCVTKXXOY-UHFFFAOYSA-N 0.000 claims 1
- GYDSPAVLTMAXHT-UHFFFAOYSA-N pentyl 2-methylprop-2-enoate Chemical compound CCCCCOC(=O)C(C)=C GYDSPAVLTMAXHT-UHFFFAOYSA-N 0.000 claims 1
- SJMYWORNLPSJQO-UHFFFAOYSA-N tert-butyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OC(C)(C)C SJMYWORNLPSJQO-UHFFFAOYSA-N 0.000 claims 1
- 235000006708 antioxidants Nutrition 0.000 description 10
- 150000001875 compounds Chemical class 0.000 description 10
- NQPDZGIKBAWPEJ-UHFFFAOYSA-N valeric acid Chemical compound CCCCC(O)=O NQPDZGIKBAWPEJ-UHFFFAOYSA-N 0.000 description 8
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 6
- OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 5
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 4
- GVJHHUAWPYXKBD-UHFFFAOYSA-N (±)-α-Tocopherol Chemical compound OC1=C(C)C(C)=C2OC(CCCC(C)CCCC(C)CCCC(C)C)(C)CCC2=C1C GVJHHUAWPYXKBD-UHFFFAOYSA-N 0.000 description 3
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- QMMFVYPAHWMCMS-UHFFFAOYSA-N Dimethyl sulfide Chemical compound CSC QMMFVYPAHWMCMS-UHFFFAOYSA-N 0.000 description 3
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 3
- DMHLGGQHOSTMJG-UHFFFAOYSA-N 2,4-Dimethyl-2-pentenoic acid Chemical compound CC(C)C=C(C)C(O)=O DMHLGGQHOSTMJG-UHFFFAOYSA-N 0.000 description 2
- FYZUENZXIZCLAZ-UHFFFAOYSA-N 2-methylhept-2-enoic acid Chemical compound CCCCC=C(C)C(O)=O FYZUENZXIZCLAZ-UHFFFAOYSA-N 0.000 description 2
- RUMACXVDVNRZJZ-UHFFFAOYSA-N 2-methylpropyl 2-methylprop-2-enoate Chemical compound CC(C)COC(=O)C(C)=C RUMACXVDVNRZJZ-UHFFFAOYSA-N 0.000 description 2
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 description 2
- 239000004255 Butylated hydroxyanisole Substances 0.000 description 2
- 239000004322 Butylated hydroxytoluene Substances 0.000 description 2
- FERIUCNNQQJTOY-UHFFFAOYSA-N Butyric acid Chemical compound CCCC(O)=O FERIUCNNQQJTOY-UHFFFAOYSA-N 0.000 description 2
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 description 2
- QIGBRXMKCJKVMJ-UHFFFAOYSA-N Hydroquinone Chemical compound OC1=CC=C(O)C=C1 QIGBRXMKCJKVMJ-UHFFFAOYSA-N 0.000 description 2
- AMIMRNSIRUDHCM-UHFFFAOYSA-N Isopropylaldehyde Chemical compound CC(C)C=O AMIMRNSIRUDHCM-UHFFFAOYSA-N 0.000 description 2
- UUIQMZJEGPQKFD-UHFFFAOYSA-N Methyl butyrate Chemical compound CCCC(=O)OC UUIQMZJEGPQKFD-UHFFFAOYSA-N 0.000 description 2
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical class CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 description 2
- QQONPFPTGQHPMA-UHFFFAOYSA-N Propene Chemical compound CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 2
- VYGQUTWHTHXGQB-FFHKNEKCSA-N Retinol Palmitate Chemical compound CCCCCCCCCCCCCCCC(=O)OC\C=C(/C)\C=C\C=C(/C)\C=C\C1=C(C)CCCC1(C)C VYGQUTWHTHXGQB-FFHKNEKCSA-N 0.000 description 2
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 2
- 239000001273 butane Substances 0.000 description 2
- 229940043253 butylated hydroxyanisole Drugs 0.000 description 2
- 229940095259 butylated hydroxytoluene Drugs 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- DNJIEGIFACGWOD-UHFFFAOYSA-N ethanethiol Chemical compound CCS DNJIEGIFACGWOD-UHFFFAOYSA-N 0.000 description 2
- FKRCODPIKNYEAC-UHFFFAOYSA-N ethyl propionate Chemical compound CCOC(=O)CC FKRCODPIKNYEAC-UHFFFAOYSA-N 0.000 description 2
- VKYKSIONXSXAKP-UHFFFAOYSA-N hexamethylenetetramine Chemical compound C1N(C2)CN3CN1CN2C3 VKYKSIONXSXAKP-UHFFFAOYSA-N 0.000 description 2
- NNPPMTNAJDCUHE-UHFFFAOYSA-N isobutane Chemical compound CC(C)C NNPPMTNAJDCUHE-UHFFFAOYSA-N 0.000 description 2
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 description 2
- 239000003949 liquefied natural gas Substances 0.000 description 2
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 2
- BHIWKHZACMWKOJ-UHFFFAOYSA-N methyl isobutyrate Chemical compound COC(=O)C(C)C BHIWKHZACMWKOJ-UHFFFAOYSA-N 0.000 description 2
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical class CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 2
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 description 2
- 229910017464 nitrogen compound Inorganic materials 0.000 description 2
- 150000002830 nitrogen compounds Chemical class 0.000 description 2
- NWVVVBRKAWDGAB-UHFFFAOYSA-N p-methoxyphenol Chemical compound COC1=CC=C(O)C=C1 NWVVVBRKAWDGAB-UHFFFAOYSA-N 0.000 description 2
- 239000001294 propane Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 150000003464 sulfur compounds Chemical class 0.000 description 2
- WMXCDAVJEZZYLT-UHFFFAOYSA-N tert-butylthiol Chemical compound CC(C)(C)S WMXCDAVJEZZYLT-UHFFFAOYSA-N 0.000 description 2
- 229930003799 tocopherol Natural products 0.000 description 2
- 239000011732 tocopherol Substances 0.000 description 2
- 150000003722 vitamin derivatives Chemical class 0.000 description 2
- BJEPYKJPYRNKOW-REOHCLBHSA-N (S)-malic acid Chemical compound OC(=O)[C@@H](O)CC(O)=O BJEPYKJPYRNKOW-REOHCLBHSA-N 0.000 description 1
- VXNZUUAINFGPBY-UHFFFAOYSA-N 1-Butene Chemical compound CCC=C VXNZUUAINFGPBY-UHFFFAOYSA-N 0.000 description 1
- FPIPGXGPPPQFEQ-UHFFFAOYSA-N 13-cis retinol Natural products OCC=C(C)C=CC=C(C)C=CC1=C(C)CCCC1(C)C FPIPGXGPPPQFEQ-UHFFFAOYSA-N 0.000 description 1
- YBVRFTBNIZWMSK-UHFFFAOYSA-N 2,2-dimethyl-1-phenylpropan-1-ol Chemical compound CC(C)(C)C(O)C1=CC=CC=C1 YBVRFTBNIZWMSK-UHFFFAOYSA-N 0.000 description 1
- BLCHIKLQYBVYAF-UHFFFAOYSA-N 2,5-dimethylhex-2-enoic acid Chemical compound CC(C)CC=C(C)C(O)=O BLCHIKLQYBVYAF-UHFFFAOYSA-N 0.000 description 1
- DGXFMSRRCXXQDG-UHFFFAOYSA-N 2,6-dimethylhept-2-enoic acid Chemical compound CC(C)CCC=C(C)C(O)=O DGXFMSRRCXXQDG-UHFFFAOYSA-N 0.000 description 1
- AKOVMBAFZSPEQU-UHFFFAOYSA-N 2-methylhex-2-enoic acid Chemical compound CCCC=C(C)C(O)=O AKOVMBAFZSPEQU-UHFFFAOYSA-N 0.000 description 1
- LANHEKZGKDEWLK-UHFFFAOYSA-N 2-methylideneheptanoic acid Chemical compound CCCCCC(=C)C(O)=O LANHEKZGKDEWLK-UHFFFAOYSA-N 0.000 description 1
- DJDGWVCBUNYBOO-UHFFFAOYSA-N 2-methylideneoctanoic acid Chemical compound CCCCCCC(=C)C(O)=O DJDGWVCBUNYBOO-UHFFFAOYSA-N 0.000 description 1
- CPWJZWLDRWODFP-UHFFFAOYSA-N 2-methylnon-2-enoic acid Chemical compound CCCCCCC=C(C)C(O)=O CPWJZWLDRWODFP-UHFFFAOYSA-N 0.000 description 1
- SCNWTQPZTZMXBG-UHFFFAOYSA-N 2-methyloct-2-enoic acid Chemical compound CCCCCC=C(C)C(O)=O SCNWTQPZTZMXBG-UHFFFAOYSA-N 0.000 description 1
- JJYWRQLLQAKNAD-UHFFFAOYSA-N 2-methylpent-2-enoic acid Chemical compound CCC=C(C)C(O)=O JJYWRQLLQAKNAD-UHFFFAOYSA-N 0.000 description 1
- BVCOHOSEBKQIQD-UHFFFAOYSA-N 2-tert-butyl-6-methoxyphenol Chemical compound COC1=CC=CC(C(C)(C)C)=C1O BVCOHOSEBKQIQD-UHFFFAOYSA-N 0.000 description 1
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 1
- XHPWLOUEEHSTKZ-UHFFFAOYSA-N 5-methyl-2-methylidenehexanoic acid Chemical compound CC(C)CCC(=C)C(O)=O XHPWLOUEEHSTKZ-UHFFFAOYSA-N 0.000 description 1
- UIERETOOQGIECD-UHFFFAOYSA-N Angelic acid Natural products CC=C(C)C(O)=O UIERETOOQGIECD-UHFFFAOYSA-N 0.000 description 1
- 239000005711 Benzoic acid Substances 0.000 description 1
- ZAKOWWREFLAJOT-CEFNRUSXSA-N D-alpha-tocopherylacetate Chemical compound CC(=O)OC1=C(C)C(C)=C2O[C@@](CCC[C@H](C)CCC[C@H](C)CCCC(C)C)(C)CCC2=C1C ZAKOWWREFLAJOT-CEFNRUSXSA-N 0.000 description 1
- ZZZCUOFIHGPKAK-UHFFFAOYSA-N D-erythro-ascorbic acid Natural products OCC1OC(=O)C(O)=C1O ZZZCUOFIHGPKAK-UHFFFAOYSA-N 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- QAQJMLQRFWZOBN-LAUBAEHRSA-N L-ascorbyl-6-palmitate Chemical compound CCCCCCCCCCCCCCCC(=O)OC[C@H](O)[C@H]1OC(=O)C(O)=C1O QAQJMLQRFWZOBN-LAUBAEHRSA-N 0.000 description 1
- 239000011786 L-ascorbyl-6-palmitate Substances 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-M Methacrylate Chemical compound CC(=C)C([O-])=O CERQOIWHTDAKMF-UHFFFAOYSA-M 0.000 description 1
- VYGQUTWHTHXGQB-UHFFFAOYSA-N Retinol hexadecanoate Natural products CCCCCCCCCCCCCCCC(=O)OCC=C(C)C=CC=C(C)C=CC1=C(C)CCCC1(C)C VYGQUTWHTHXGQB-UHFFFAOYSA-N 0.000 description 1
- FPIPGXGPPPQFEQ-BOOMUCAASA-N Vitamin A Natural products OC/C=C(/C)\C=C\C=C(\C)/C=C/C1=C(C)CCCC1(C)C FPIPGXGPPPQFEQ-BOOMUCAASA-N 0.000 description 1
- 229930003268 Vitamin C Natural products 0.000 description 1
- 229930003427 Vitamin E Natural products 0.000 description 1
- 235000011054 acetic acid Nutrition 0.000 description 1
- 150000001345 alkine derivatives Chemical class 0.000 description 1
- 125000005250 alkyl acrylate group Chemical group 0.000 description 1
- FPIPGXGPPPQFEQ-OVSJKPMPSA-N all-trans-retinol Chemical compound OC\C=C(/C)\C=C\C=C(/C)\C=C\C1=C(C)CCCC1(C)C FPIPGXGPPPQFEQ-OVSJKPMPSA-N 0.000 description 1
- 229940061720 alpha hydroxy acid Drugs 0.000 description 1
- 150000001280 alpha hydroxy acids Chemical class 0.000 description 1
- BJEPYKJPYRNKOW-UHFFFAOYSA-N alpha-hydroxysuccinic acid Natural products OC(=O)C(O)CC(O)=O BJEPYKJPYRNKOW-UHFFFAOYSA-N 0.000 description 1
- 235000010385 ascorbyl palmitate Nutrition 0.000 description 1
- 235000010233 benzoic acid Nutrition 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- IAQRGUVFOMOMEM-UHFFFAOYSA-N butene Natural products CC=CC IAQRGUVFOMOMEM-UHFFFAOYSA-N 0.000 description 1
- 235000015165 citric acid Nutrition 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- ZAKOWWREFLAJOT-UHFFFAOYSA-N d-alpha-Tocopheryl acetate Natural products CC(=O)OC1=C(C)C(C)=C2OC(CCCC(C)CCCC(C)CCCC(C)C)(C)CCC2=C1C ZAKOWWREFLAJOT-UHFFFAOYSA-N 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- BEFDCLMNVWHSGT-UHFFFAOYSA-N ethenylcyclopentane Chemical compound C=CC1CCCC1 BEFDCLMNVWHSGT-UHFFFAOYSA-N 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 235000019253 formic acid Nutrition 0.000 description 1
- WIGCFUFOHFEKBI-UHFFFAOYSA-N gamma-tocopherol Natural products CC(C)CCCC(C)CCCC(C)CCCC1CCC2C(C)C(O)C(C)C(C)C2O1 WIGCFUFOHFEKBI-UHFFFAOYSA-N 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000004312 hexamethylene tetramine Substances 0.000 description 1
- 235000010299 hexamethylene tetramine Nutrition 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 239000001282 iso-butane Substances 0.000 description 1
- WDAXFOBOLVPGLV-UHFFFAOYSA-N isobutyric acid ethyl ester Natural products CCOC(=O)C(C)C WDAXFOBOLVPGLV-UHFFFAOYSA-N 0.000 description 1
- 239000004310 lactic acid Substances 0.000 description 1
- 235000014655 lactic acid Nutrition 0.000 description 1
- 239000001630 malic acid Substances 0.000 description 1
- 235000011090 malic acid Nutrition 0.000 description 1
- 150000003956 methylamines Chemical class 0.000 description 1
- FBCQUCJYYPMKRO-UHFFFAOYSA-N prop-2-enyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OCC=C FBCQUCJYYPMKRO-UHFFFAOYSA-N 0.000 description 1
- QTECDUFMBMSHKR-UHFFFAOYSA-N prop-2-enyl prop-2-enoate Chemical compound C=CCOC(=O)C=C QTECDUFMBMSHKR-UHFFFAOYSA-N 0.000 description 1
- 229940108325 retinyl palmitate Drugs 0.000 description 1
- 235000019172 retinyl palmitate Nutrition 0.000 description 1
- 239000011769 retinyl palmitate Substances 0.000 description 1
- DCKVNWZUADLDEH-UHFFFAOYSA-N sec-butyl acetate Chemical compound CCC(C)OC(C)=O DCKVNWZUADLDEH-UHFFFAOYSA-N 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 235000010199 sorbic acid Nutrition 0.000 description 1
- 239000004334 sorbic acid Substances 0.000 description 1
- 229940075582 sorbic acid Drugs 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- RAOIDOHSFRTOEL-UHFFFAOYSA-N tetrahydrothiophene Chemical compound C1CCSC1 RAOIDOHSFRTOEL-UHFFFAOYSA-N 0.000 description 1
- UIERETOOQGIECD-ONEGZZNKSA-N tiglic acid Chemical compound C\C=C(/C)C(O)=O UIERETOOQGIECD-ONEGZZNKSA-N 0.000 description 1
- 235000010384 tocopherol Nutrition 0.000 description 1
- 229960001295 tocopherol Drugs 0.000 description 1
- 229940042585 tocopherol acetate Drugs 0.000 description 1
- 125000002640 tocopherol group Chemical class 0.000 description 1
- 235000019149 tocopherols Nutrition 0.000 description 1
- 235000019155 vitamin A Nutrition 0.000 description 1
- 239000011719 vitamin A Substances 0.000 description 1
- 235000019154 vitamin C Nutrition 0.000 description 1
- 239000011718 vitamin C Substances 0.000 description 1
- 235000019165 vitamin E Nutrition 0.000 description 1
- 239000011709 vitamin E Substances 0.000 description 1
- 229940046009 vitamin E Drugs 0.000 description 1
- 229940045997 vitamin a Drugs 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- GVJHHUAWPYXKBD-IEOSBIPESA-N α-tocopherol Chemical compound OC1=C(C)C(C)=C2O[C@@](CCC[C@H](C)CCC[C@H](C)CCCC(C)C)(C)CCC2=C1C GVJHHUAWPYXKBD-IEOSBIPESA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L3/00—Gaseous fuels; Natural gas; Synthetic natural gas obtained by processes not covered by subclass C10G, C10K; Liquefied petroleum gas
- C10L3/003—Additives for gaseous fuels
- C10L3/006—Additives for gaseous fuels detectable by the senses
Landscapes
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Liquid Carbonaceous Fuels (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
Abstract
Die vorliegende Erfindung betrifft die Verwendung von Mischungen von Acrylsäure-C¶1¶-C¶6¶-alkylestern und/oder Methacrylsäure-C¶1¶-C¶6¶-alkylestern zur Odorierung von Brenngasen, ein Verfahren zur Odorierung von Brenngasen und Brenngase, enthaltend diese Mischungen.The present invention relates to the use of mixtures of acrylic acid-C¶1¶-C¶6¶-alkyl esters and / or methacrylic acid-C¶1¶-C¶6¶-alkyl esters for the odorization of fuel gases, a process for the odorization of fuel gases and Fuel gases containing these mixtures.
Description
Die vorliegende Erfindung betrifft die Verwendung von Mischungen von Acrylsäure-C1-C6-alkylestern und/oder Methacrylsäure-C1-C6-alkylestern zur Odorierung von Brenngasen, ein Verfahren zur Odorierung von Brenngasen und Brenngase enthaltend diese Mischungen.The present invention relates to the use of mixtures of acrylic acid-C 1 -C 6 -alkyl esters and / or methacrylic acid-C 1 -C 6 -alkyl esters for the odorization of fuel gases, a process for the odorization of fuel gases and fuel gases containing these mixtures.
Brenngase, die keinen ausreichenden Eigengeruch aufweisen, werden üblicherweise mit intensiv riechenden Verbindungen versetzt, d.h. odoriert, damit im Falle von Undichtigkeiten oder Leckagen diese leicht wahrgenommen werden können. Aus Sicherheitsgründen werden den Brenngasen sogenannte Odoriermittel zugesetzt, die auch in hoher Verdünnung noch wahrnehmbar sind und auf Grund ihres außergewöhnlich unangenehmen Geruchs eine Alarmassoziation beim Menschen hervorrufen.Fuel gases that are insufficient Have their own smell, are usually mixed with intensely smelling compounds, i.e. odorized so in the event of leaks or leaks these are easily noticed can be. For safety reasons So-called odorants are added to the fuel gases in high dilution are still noticeable and due to their exceptionally unpleasant smell cause an alarm association in humans.
Typischerweise werden als Odoriermittel Schwefelverbindungen eingesetzt. Häufige Verwendung finden Tetrahydrothiophen, tert.-Butylmercaptan, Dimethylsulfid oder auch Ethylmercaptan.They are typically used as odorants Sulfur compounds used. Tetrahydrothiophene is frequently used, tert-butyl mercaptan, dimethyl sulfide or ethyl mercaptan.
Da eine Reduzierung oder Vermeidung von Schwefelverbindungen in Brenngasen, unter anderem aus ökologischen Gründen, angestrebt wird, wurden bereits Versuche unternommen, schwefelfreie Odoriermittel zu entwickeln.Because a reduction or avoidance of sulfur compounds in fuel gases, including from ecological ones Establish, attempts have been made to make sulfur-free To develop odorants.
In
In
In
Es wurden alternative Odoriermittel zur Odorierung von Brenngasen gesucht, insbesondere solche, die weder S- noch N-haltige Verbindungen enthalten.Alternative odorants became available wanted for odorization of fuel gases, especially those that contain neither S nor N-containing compounds.
Es wurde nun gefunden, dass Mischungen bestehend aus genau zwei oder enthaltend mindestens 3 verschiedene Acrylsäure-C1-C6-alkylester und/oder Methacrylsäure-C1-C6-alkylester sich hervorragend zur Odorierung von Brenngasen eignen. Überraschenderweise wurde gefunden, dass diese Mischungen bei der Odorierung von Brenngasen synergistische Effekte zeigen, d.h. dass die Mischungen dieser Verbindungen eine stärkere Wirkung aufweisen, als die Summe der einzelnen Bestandteile erwarten lässt.It has now been found that mixtures consisting of exactly two or containing at least 3 different C 1 -C 6 -alkyl acrylates and / or C 1 -C 6 -alkyl methacrylates are outstandingly suitable for the odorization of fuel gases. Surprisingly, it was found that these mixtures have synergistic effects in the odorization of fuel gases, that is to say that the mixtures of these compounds have a stronger action than the sum of the individual components suggests.
Gegenstand der vorliegenden Erfindung ist die Verwendung von Mischungen enthaltend Acrylsäure-C1-C6-alkylester und/oder Methacrylsäure-C1-C6-alkylester zur Odorierung von Brenngasen, dadurch gekennzeichnet, dass diese Mischungen mindestens 3 und höchstens 6 verschiedene Acrylsäure-C1-C6-alkylester und/oder Methacrylsäure-C1-C6-alkylester enthalten, sowie gegebenenfalls ein Antioxidans.The present invention relates to the use of mixtures comprising C 1 -C 6 -alkyl acrylic acid and / or C 1 -C 6 -alkyl methacrylic acid for the odorization of fuel gases, characterized in that these mixtures contain at least 3 and at most 6 different acrylic acid C 1 -C 6 alkyl esters and / or methacrylic acid C 1 -C 6 alkyl esters, and optionally an antioxidant.
Ein weiterer Gegenstand der vorliegenden Erfindung ist ein Verfahren zur Odorierung von Brenngasen mit den erfindungsgemäßen Mischungen sowie Brenngase enthaltend die erfindungsgemäßen Mischungen.Another subject of the present Invention is a method for the odorization of fuel gases with the mixtures according to the invention as well as fuel gases containing the mixtures according to the invention.
Die Acrylsäure-C1-C6-alkylester werden vorteilhaft gewählt aus der Gruppe umfassend Acrylsäuremethylester, Acrylsäureethylester, Acrylsäure-n-propylester, Acrylsäure-iso-propylester, Acrylsäure-n-butylester, Acrylsäure-iso-butylester, Acrylsäure-tert.-butylester, Acrylsäure-n-pentylester, Acrylsäure-iso-pentylester und Acrylsäure-n-hexylester.The acrylic acid C 1 -C 6 alkyl esters are advantageously selected from the group comprising acrylic acid methyl ester, acrylic acid ethyl ester, acrylic acid n-propyl ester, acrylic acid isopropyl ester, acrylic acid n-butyl ester, acrylic acid isobutyl ester, acrylic acid tert.- butyl ester, n-pentyl acrylic acid, isopentyl acrylic acid and n-hexyl acrylic acid.
Bevorzugt sind Acrylsäure-C1-C4-alkylester, insbesondere Acrylsäuremethylester, Acrylsäureethylester, Acrylsäure-n-propylester, Acrylsäure-iso-propylester, Acrylsäure-n-butylester und Acrylsäure-iso-butylester. Ganz besonders bevorzugte Acrylsäure-C1-C4-alkylester sind Acrylsäuremethylester, Acrylsäureethylester und Acrylsäure-n-butylester.Preferred are C 1 -C 4 -alkyl acrylates, in particular methyl acrylates, ethyl acrylates, n-propyl acrylates, isopropyl acrylates, n-butyl acrylates and isobutyl acrylates. Very particularly preferred C 1 -C 4 -alkyl acrylates are methyl acrylate, ethyl acrylate and n-butyl acrylate.
Die Methacrylsäure-C1-C6-alkylester werden vorteilhaft gewählt aus der Gruppe umfassend Methacrylsäuremethylester, Methacrylsäureethylester, Methacrylsäure-n-propylester, Methacrylsäure-iso-propylester, Methacrylsäure-n-butylester, Methacrylsäure-iso-butylester, Methacrylsäure-tert.-butylester, Methacrylsäure-n-pentylester, Methacrylsäure-iso-pentylester und Methacrylsäure-n-hexylester.The methacrylic acid C 1 -C 6 alkyl esters are advantageously selected from the group comprising methyl methacrylate, ethyl methacrylate, n-propyl methacrylate, isopropyl methacrylate, n-butyl methacrylate, isobutyl methacrylate, tert-methacrylic acid. butyl ester, n-pentyl methacrylic acid, isopentyl methacrylic acid and n-hexyl methacrylic acid.
Bevorzugt sind Methacrylsäure-C1-C4-alkylester, insbesondere Methacrylsäuremethylester, Methacrylsäureethylester, Methacrylsäure-n-propylester, Methacrylsäure-iso-propylester, Methacrylsäure-n-butylester und Methacrylsäure-iso-butyl ester. Ganz besonders bevorzugte Methacrylsäure-C1-C4-alkylester sind Methacrylsäuremethylester und Methacrylsäureethylester.Preferred are C 1 -C 4 -acrylic methacrylic acid, in particular methyl methacrylic acid, ethyl methacrylic acid, n-propyl methacrylic acid, isopropyl methacrylic acid, n-butyl methacrylic acid and isobutyl methacrylic acid. Very particularly preferred methacrylic acid C 1 -C 4 alkyl esters are methacrylic acid methyl ester and methacrylic acid ethyl ester.
Besonders geeignete Mischungen enthalten mindestens einen Ester aus der Gruppe umfassend Acrylsäuremethylester, Acrylsäureethylester, Acrylsäure-n-propylester, Acrylsäure-iso-propylester, Acrylsäure-n-butylester, Acrylsäure-iso-butylester, Acrylsäure-n-pentylester, Acrylsäure-iso-pentylester, Methacrylsäuremethylester und Methacrylsäureethylester, bevorzugte Mischungen mindestens einen Ester aus der Gruppe umfassend Acrylsäuremethylester, Acrylsäureethylester und Acrylsäure-n-butylester.Contain particularly suitable mixtures at least one ester from the group comprising methyl acrylate, ethyl acrylate, Acrylic acid n-propyl ester, Acrylic acid iso-propyl ester, Acrylic acid-n-butyl ester, Acrylic acid iso-butyl ester, Acrylic acid n-pentyl, Acrylic acid iso-pentyl ester, methacrylate and methyl methacrylate, preferred mixtures comprising at least one ester from the group methyl acrylate, ethyl acrylate and n-butyl acrylic acid.
Bevorzugt sind Mischungen enthaltend mindestens zwei Ester aus der Gruppe umfassend Acrylsäuremethylester, Acrylsäureethylester, Acrylsäure-n-propylester, Acrylsäure-iso-propylester, Acrylsäure-n-butylester, Acrylsäure-iso-butylester, Acrylsäure-n-pentylester und Acrylsäure-iso-pentylester, bevorzugt mindestens zwei Ester aus der Gruppe umfassend Acrylsäuremethylester, Acrylsäureethylester und Acrylsäure-n-butylester.Mixtures are preferred at least two esters from the group comprising methyl acrylate, ethyl acrylate, Acrylic acid n-propyl ester, Acrylic acid iso-propyl ester, Acrylic acid-n-butyl ester, Acrylic acid iso-butyl ester, Acrylic acid n-pentyl and acrylic acid isopentyl ester, preferably at least two esters from the group comprising methyl acrylate, ethyl acrylate and n-butyl acrylic acid.
Besonders bevorzugt sind Mischungen enthaltend Acrylsäuremethylester und Acrylsäureethylester.Mixtures are particularly preferred containing acrylic acid methyl ester and acrylic acid ethyl ester.
Ebenfalls besonders bevorzugt sind Mischungen enthaltend Acrylsäuremethylester und Acrylsäure-n-butylester.Are also particularly preferred Mixtures containing acrylic acid methyl ester and n-butyl acrylic acid.
Weiterhin besonders bevorzugt sind Mischungen enthaltend Acrylsäureethylester und Acrylsäure-n-butylester.Are also particularly preferred Mixtures containing ethyl acrylate and n-butyl acrylic acid.
Eine besonders bevorzugte Ausführungsform betrifft Mischungen enthaltend Acrylsäuremethylester, Acrylsäureethylester und einen Ester gewählt aus Acrylsäure-n-butylester, Methacrylsäuremethylester und Methacrylsäureethylester.A particularly preferred embodiment relates to mixtures containing acrylic acid methyl ester, acrylic acid ethyl ester and chosen an ester from n-butyl acrylate, methyl methacrylate and methyl methacrylate.
Die Mischungen enthalten die Verbindungen bevorzugt im gewichtsbezogenen Verhältnis 1–4 : 2–8 : 1–4.The mixtures contain the compounds preferably in a weight ratio of 1-4: 2-8: 1-4.
Weiterhin bevorzugt sind Mischungen, die die genannten Ester im gewichtsbezogenen Verhältnis 1–2 : 1–2 : 6–8 enthalten.Mixtures are also preferred, which contain the esters mentioned in a weight ratio of 1-2: 1-2: 6-8.
In einer weiteren bevorzugten Ausführungsform werden Mischungen enthaltend mindestens 4 und höchstens 6 verschiedene Acrylsäure-C1-C6-alkylester und/oder Methacrylsäure-C1-C6-alkylester eingesetzt, wobei Mischungen bevorzugt sind, die mindestens zwei Verbindungen enthalten gewählt aus Acrylsäuremethylester, Acrylsäureethylester oder Acrylsäure-n-butylester. Besonders bevorzugt sind Mischungen, die Acrylsäuremethylester, Acrylsäureethylester und Acrylsäure-n-butylester enthalten.In a further preferred embodiment, mixtures containing at least 4 and at most 6 different C 1 -C 6 -alkyl acrylic acid and / or C 1 -C 6 -alkyl methacrylic acid are used, preference being given to mixtures which contain at least two compounds selected from methyl acrylate , Ethyl acrylate or n-butyl acrylate. Mixtures which contain methyl acrylate, ethyl acrylate and n-butyl acrylate are particularly preferred.
Ein weiterer Gegenstand der vorliegenden Erfindung betrifft die Verwendung von Mischungen zur Odorierung von Brenngasen, dadurch gekennzeichnet, dass diese Mischungen bestehen aus zwei verschiedenen Acrylsäure-C1-C6-alkylestern und/oder Methacrylsäure-C1-C6-alkylestern sowie gegebenenfalls einem Antioxidans.The present invention further relates to the use of mixtures for the odorization of fuel gases, characterized in that these mixtures consist of two different C 1 -C 6 -alkyl acrylic esters and / or C 1 -C 6 -alkyl methacrylic acid and optionally one Antioxidant.
Bevorzugt sind Mischungen bestehend aus Acrylsäuremethylester, Acrylsäureethylester oder Acrylsäure-n-butylester und einem anderen Acrylsäure-C1-C6-alkylester und/oder Methacrylsäure-C1-C6-alkylester sowie gegebenenfalls einem Antioxidans.Mixtures consisting of methyl acrylate, ethyl acrylate or n-butyl acrylate and another C 1 -C 6 alkyl acrylate and / or C 1 -C 6 alkyl methacrylate and optionally an antioxidant are preferred.
Bevorzugt sind Mischungen bestehend aus Acrylsäuremethylester, Acrylsäureethylester oder Acrylsäure-n-butylester und einem anderen Acrylsäure-C1-C6-alkylester und/oder Methacrylsäure-C1-C6-alkylester aus der Gruppe umfassend Acrylsäuremethylester, Acrylsäureethylester, Acrylsäure-n-propylester, Acrylsäure-iso-propylester, Acrylsäure-n-butylester, Acrylsäure-iso-butylester, Acrylsäure-tert.-butylester, Acrylsäure-n-pentylester, Acrylsäure-iso-pentylester, Acrylsäure-n-hexylester, Methacrylsäuremethylester, Methacrylsäureethylester, Methacrylsäure-n- propylester, Methacrylsäure-iso-propylester, Methacrylsäure-n-butylester und Methacrylsäure-iso-butylester.Mixtures consisting of methyl acrylate, ethyl acrylate or n-butyl acrylate and another C 1 -C 6 alkyl acrylate and / or C 1 -C 6 alkyl methacrylate from the group comprising methyl acrylate, ethyl acrylate, n-acrylic acid propyl ester, isopropyl acrylate, n-butyl acrylate, isobutyl acrylate, tert-butyl acrylate, n-pentyl acrylate, isopentyl acrylate, n-hexyl acrylate, methyl methacrylate, methyl methacrylate, methacrylic acid -n-propyl ester, iso-propyl methacrylic acid, n-butyl methacrylic acid and isobutyl methacrylate.
Bevorzugt sind Mischungen aus Acrylsäuremethylester und Acrylsäureethylester. Die Mischungen enthalten die Verbindungen vorteilhafterweise im gewichtsbezogenen Verhältnis 2 : 8 – 8 : 2, bevorzugt 3 : 7 – 7 : 3 und besonders bevorzugt 6 4–4:6.Mixtures of methyl acrylate are preferred and acrylic acid ethyl ester. The mixtures advantageously contain the compounds in weight ratio 2: 8-8 : 2, preferably 3: 7-7 : 3 and particularly preferably 6 4-4: 6.
Weiterhin bevorzugt sind Mischungen aus Acrylsäuremethylester und Acrylsäure-n-butylester. Die Mischungen enthalten die Verbindungen vorteilhafterweise im gewichtsbezogenen Verhältnis 8 : 2 – 1 : 9, bevorzugt 6 : 4 – 2 : 8 und besonders bevorzugt 6 : 4 – 3 : 7.Mixtures are also preferred from acrylic acid methyl ester and n-butyl acrylic acid. The blends contain the compounds advantageously in the weight-related relationship 8: 2-1 : 9, preferably 6: 4-2 : 8 and particularly preferably 6: 4 - 3: 7.
Ebenfalls bevorzugt sind Mischungen aus Acrylsäureethylester und Acrylsäure-n-butylester. Die Mischungen enthalten die Verbindungen vorteilhafterweise im gewichtsbezogenen Verhältnis 9 : 1 – 1 : 9, bevorzugt 8 : 2 – 4 : 6 und besonders bevorzugt 7 : 3 – 6 : 4.Mixtures are also preferred from acrylic acid ethyl ester and n-butyl acrylic acid. The blends contain the compounds advantageously in the weight-related relationship 9: 1-1 : 9, preferably 8: 2-4 : 6 and particularly preferably 7: 3 - 6: 4.
Es ist insbesondere überraschend, dass Mischungen bestehend aus den oben genannten Acrylsäure-C1-C6-alkylestern, d.h. Mischungen von verschiedenen Acrylsäurealkylestern ohne den Zusatz weiterer Odoriermittel, eine gute Alarmwirkung aufweisen.It is particularly surprising that mixtures consisting of the above-mentioned acrylic acid-C 1 -C 6 -alkyl esters, ie mixtures of different acrylic acid alkyl esters without the addition of others Odorants, have a good alarm effect.
Selbstverständlich können die erfindungsgemäßen Mischungen mit mindestens 3 und höchstens 6 verschiedenen Acrylsäure-C1-C6-alkylestern undloder Methacrylsäure-C1-C6-alkylestern zusätzlich weitere Stoffe enthalten, die zur Odorierung von Brenngasen geeignet sind.Of course, the mixtures according to the invention with at least 3 and at most 6 different acrylic acid C 1 -C 6 alkyl esters and / or methacrylic acid C 1 -C 6 alkyl esters can additionally contain other substances which are suitable for the odorization of fuel gases.
Mit den erfindungsgemäßen Mischungen kann die Odorierung von natürlichen oder synthetischen Brenngasen oder von Gemischen davon erfolgen. Es seien beispielsweise genannt: Erdgas, LNG (Liquid Natural Gas), Flüssiggas (LPG: Liquefied Petroleum Gas), Stadtgas, Heizgas, Methan, Ethan, Ethen, Propan, Propen, Butan, Isobutan, Buten, Pentan, oder auch Brenngase wie Wassergas, Synthesegas, Generatorgas oder Kokereigas.With the mixtures according to the invention can odorization of natural or synthetic fuel gases or mixtures thereof. Examples include: natural gas, LNG (Liquid Natural Gas), LPG (LPG: Liquefied Petroleum Gas), town gas, heating gas, methane, ethane, Ethene, propane, propene, butane, isobutane, butene, pentane, or also Fuel gases such as water gas, synthesis gas, generator gas or coke oven gas.
Die erfindungsgemäßen Odoriermittel eignen sich besonders für die Odorierung von Brenngasen, die Methan, Ethan, Propan oder Butan enthalten, insbesondere für Erdgas, Stadtgas oder Flüssiggas.The odorants according to the invention are suitable especially for the odorization of fuel gases, the methane, ethane, propane or butane included, especially for Natural gas, town gas or liquid gas.
Die Brenngase können selbstverständlich weitere Verbindungen wie beispielsweise Pentane, Hexane oder Heptane enthalten.The fuel gases can, of course, be other Contain compounds such as pentanes, hexanes or heptanes.
Dem erfindungsgemäßen Odoriermittel können beispielsweise zur Stabilitätserhöhung gängige Antioxidantien zugesetzt werden. Beispielhaft sollen genannt werden Vitamin C und Derivate (z.B. Ascorbylpalmitat, Ascorbylacetat), Tocopherole und Derivate (z.B. Vitamin E, Vitamin E – acetat), Vitamin A und Derivate (Vitamin A – palmitat) phenolische Benzylamine, Ameisensäure, Essigsäure, Benzoesäure, Sorbinsäure, Hexamethylentetramin, tert.-Butylhydroxytoluol, tert.-Butylhydroxyanisol, α-Hydroxysäuren (z.B. Zitronensäure, Milchsäure, Apfelsäure), Hydrochinonmonomethylether. Bevorzugte Antioxidantien sind tert.-Butylhydroxytoluol (Jonol, BHT), tert.-Butylhydroxyanisol, Hydrochinonmonomethylether und Tocopherol.The odorant according to the invention can, for example common antioxidants to increase stability be added. Vitamin C and Derivatives (e.g. ascorbyl palmitate, ascorbyl acetate), tocopherols and Derivatives (e.g. vitamin E, vitamin E acetate), vitamin A and derivatives (Vitamin A - palmitate) phenolic benzylamines, formic acid, acetic acid, benzoic acid, sorbic acid, hexamethylenetetramine, tert-butylated hydroxytoluene, tert.-butylated hydroxyanisole, α-hydroxy acids (e.g. Citric acid, Lactic acid, Malic acid) Hydroquinone. Preferred antioxidants are tert-butylated hydroxytoluene (Jonol, BHT), tert-butylated hydroxyanisole, hydroquinone monomethyl ether and tocopherol.
Es können dem erfindungsgemäßen Odoriermittel auch mehrere Antioxidantien zugesetzt werden. Vorteilhafterweise enthalten die Odoriermittel ein, zwei oder drei Antioxidantien, bevorzugt sind ein oder zwei Antioxidantien. Die Gesamtmenge an Antioxidans bezogen auf das Odoriermittel liegt üblicherweise im Bereich 0,001 – 1 Gew.%, bevorzugt im Bereich 0,01 – 0,5 Gew.%, besonders bevorzugt im Bereich 0,05 – 0,25 Gew.%.It can be the odorant according to the invention several antioxidants can also be added. advantageously, the odorants contain one, two or three antioxidants, one or two antioxidants are preferred. The total amount of Antioxidant based on the odorant is usually in the range 0.001-1% by weight, preferably in the range 0.01-0.5 % By weight, particularly preferably in the range 0.05-0.25% by weight.
Die gewichtsbezogene Menge an Odoriermittel bezogen auf das zu odorierende Brenngas liegt bei flüssig vorliegenden Gasen typischerweise im Bereich 5 – 100 ppm (ppm: mg Odoriermittel pro kg Gas), bevorzugt 5 – 50 ppm, besonders bevorzugt 10 – 40 ppm und ganz besonders bevorzugt 15 – 30 ppm bzw. bei gasförmig vorliegenden Brenngasen typischerweise im Bereich 5 – 100 mg/m3, bevorzugt 5 – 50 mg/m3, besonders bevorzugt 10 – 40 mg/m3 und ganz besonders bevorzugt 15 – 30 mg/m3.The weight-based amount of odorant based on the fuel gas to be odorized in liquid gases is typically in the range 5-100 ppm (ppm: mg odorant per kg gas), preferably 5-50 ppm, particularly preferably 10-40 ppm and very particularly preferably 15 30 ppm or, in the case of gaseous fuel gases, typically in the range 5-100 mg / m 3 , preferably 5-50 mg / m 3 , particularly preferably 10-40 mg / m 3 and very particularly preferably 15-30 mg / m 3 .
Die folgenden Beispiele erläutern die
Erfindung:
Sofern nicht anders angegeben beziehen sich alle
Angaben auf Gewichtsanteile.The following examples illustrate the invention:
Unless otherwise stated, all information relates to parts by weight.
Verwendete Abkürzungen:
Me-Ac: Methylacrylat;
Et-Ac: Ethylacrylat; Bu-Ac: n-Butylacrylat; Me-Me:
Methylmethacrylat;
Et-Me: Ethylmethacrylat; Bu-Me: n-Butylmethacrylat; BHT:
tert.-Butylhydroxytoluol;
BHA: tert.-Butylhydroxyanisol; Hydr: Hydrochinonmonomethylether Used abbreviations:
Me-Ac: methyl acrylate; Et-Ac: ethyl acrylate; Bu-Ac: n-butyl acrylate; Me-Me:
methyl methacrylate; Et-Me: ethyl methacrylate; Bu-Me: n-butyl methacrylate; BHT:
tert-butyl hydroxy toluene; BHA: tert-butylhydroxyanisole; Hydr: hydroquinone monomethyl ether
Beispiel 1example 1
Die erfindungsgemäßen Odoriermittel wurden in Konzentrationen von 10, 25 und 50 mg/m3 Erdgas (Methan-Gehalt: 85 Gew.%) geruchlich bezüglich ihres Warngeruchs und ihrer Warnintensität gegen unodoriertes Erdgas (Blindwert) bewertet. Diese Konzentrationen entsprechen den typischen Konzentrationen an Odoriermittel im Erdgas bei üblichen Bedingungen bzw. bei Stoßodorierung.The odorants according to the invention were assessed in concentrations of 10, 25 and 50 mg / m 3 natural gas (methane content: 85% by weight) with regard to their warning smell and their warning intensity against unodorized natural gas (blank value). These concentrations correspond to the typical concentrations of odorant in natural gas under normal conditions or with shock odorization.
Die Versuchsdurchführung erfolgte bei Raumtemperatur (etwa 20°C) derart, dass in einen Gasstrom in einem Rohr das Odoriermittel eindosiert wird. Am Ende dieses 2 m langen Rohres (innerhalb des Rohres erfolgt die Homogenisierung) wird das austretende odorierte Gas von einer Gruppe geschulter Prüfer (8 bis 12 Personen) geruchlich bewertet. Die Bewertung erfolgte auf einer Skala von 1 (sehr schwach / sehr wenig warnend) bis 10 (sehr stark / sehr warnend), die angegebenen Werte sind Mittelwerte.The experiment was carried out at room temperature (about 20 ° C) such that the odorant is metered into a gas stream in a tube becomes. At the end of this 2 m long pipe (inside the pipe homogenization), the exiting odorized gas from a Group of trained examiners (8 to 12 people) smell rated. The evaluation took place on a scale from 1 (very weak / very little warning) to 10 (very strong / very warning), the values given are mean values.
Die Ergebnisse waren für die 3 untersuchten Konzentrationen (10, 25 und 50 mg/m3 Gas) weitgehend gleich. Tabelle 1 zeigt die Bewertung der reinen Ester. Tabelle 1: The results were largely the same for the 3 concentrations examined (10, 25 and 50 mg / m 3 gas). Table 1 shows the evaluation of the pure esters. Table 1:
Beispiel 2Example 2
Tabelle 2 zeigt die Bewertungen für Mischungen im Sinne der Erfindung, die Durchführung erfolgte wie in Beispiel 1 beschrieben. Tabelle 2: Table 2 shows the evaluations for mixtures in the sense of the invention, the procedure was as described in Example 1. Table 2:
Beispiel 3Example 3
Tabelle 3 zeigt erfindungsgemäße Odoriermittel enthaltend Antioxidantien. Tabelle 3: Table 3 shows odorants according to the invention containing antioxidants. Table 3:
Claims (18)
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10235753A DE10235753A1 (en) | 2002-08-05 | 2002-08-05 | Odorizing methane-rich fuel gases, especially natural gas, comprises adding a mixture of two to six alkyl (meth)acrylate esters |
AU2003253377A AU2003253377A1 (en) | 2002-08-05 | 2003-08-02 | Esters for odorising combustible gases |
DE50309212T DE50309212D1 (en) | 2002-08-05 | 2003-08-02 | ESTER FOR ODORING FUEL GASES |
EP03784159A EP1529091B1 (en) | 2002-08-05 | 2003-08-02 | Esters for odorising combustible gases |
AT03784159T ATE386791T1 (en) | 2002-08-05 | 2003-08-02 | ESTERS FOR ODORIZING FIRE GASES |
PCT/EP2003/008592 WO2004015036A1 (en) | 2002-08-05 | 2003-08-02 | Esters for odorising combustible gases |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10235753A DE10235753A1 (en) | 2002-08-05 | 2002-08-05 | Odorizing methane-rich fuel gases, especially natural gas, comprises adding a mixture of two to six alkyl (meth)acrylate esters |
Publications (1)
Publication Number | Publication Date |
---|---|
DE10235753A1 true DE10235753A1 (en) | 2004-02-19 |
Family
ID=30469444
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE10235753A Withdrawn DE10235753A1 (en) | 2002-08-05 | 2002-08-05 | Odorizing methane-rich fuel gases, especially natural gas, comprises adding a mixture of two to six alkyl (meth)acrylate esters |
DE50309212T Expired - Lifetime DE50309212D1 (en) | 2002-08-05 | 2003-08-02 | ESTER FOR ODORING FUEL GASES |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE50309212T Expired - Lifetime DE50309212D1 (en) | 2002-08-05 | 2003-08-02 | ESTER FOR ODORING FUEL GASES |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1529091B1 (en) |
AT (1) | ATE386791T1 (en) |
AU (1) | AU2003253377A1 (en) |
DE (2) | DE10235753A1 (en) |
WO (1) | WO2004015036A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
MX2017001220A (en) | 2014-07-30 | 2017-10-02 | Georgia Pacific Consumer Products Lp | Air freshener dispensers, cartridges therefor, systems, and methods. |
CN113956904A (en) * | 2021-11-25 | 2022-01-21 | 沈阳光正工业有限公司 | Sulfur-free odor additive for combustible gas and preparation method thereof |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS55104393A (en) * | 1979-02-02 | 1980-08-09 | Nippon Zeon Co Ltd | Fuel gas odorant |
US4487613A (en) * | 1983-09-26 | 1984-12-11 | International Flavors & Fragrances Inc. | Odorization of combustible hydrocarbon gases |
DE19837066A1 (en) * | 1998-08-17 | 2000-02-24 | Haarmann & Reimer Gmbh | Odorizing a gas, e.g. city gas comprises adding an acrylic acid, nitrogen compound and antioxidant to the gas |
-
2002
- 2002-08-05 DE DE10235753A patent/DE10235753A1/en not_active Withdrawn
-
2003
- 2003-08-02 WO PCT/EP2003/008592 patent/WO2004015036A1/en active IP Right Grant
- 2003-08-02 AU AU2003253377A patent/AU2003253377A1/en not_active Abandoned
- 2003-08-02 EP EP03784159A patent/EP1529091B1/en not_active Expired - Lifetime
- 2003-08-02 DE DE50309212T patent/DE50309212D1/en not_active Expired - Lifetime
- 2003-08-02 AT AT03784159T patent/ATE386791T1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
EP1529091B1 (en) | 2008-02-20 |
WO2004015036A1 (en) | 2004-02-19 |
ATE386791T1 (en) | 2008-03-15 |
DE50309212D1 (en) | 2008-04-03 |
EP1529091A1 (en) | 2005-05-11 |
AU2003253377A1 (en) | 2004-02-25 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1109881B1 (en) | Gas odorization method | |
EP1537193B1 (en) | Low-sulphur odorants for liquid gas | |
EP1694801B1 (en) | Odorisation of fuel gas with low-sulphur content odorisers | |
EP1927646B1 (en) | Odorising agent with improved stability | |
EP2066766B1 (en) | Low-sulfur odorant featuring improved stability | |
EP1529091B1 (en) | Esters for odorising combustible gases | |
WO2004015038A1 (en) | Gas odorisation using carboxylic acids and alkynes | |
EP1529092B1 (en) | Gas odorisation using ketones | |
EP1529093B1 (en) | Gas odorisation using phenols and/or phenol ethers | |
WO2004024853A1 (en) | Alkoxy pyrazines for odorising gas | |
DE3151215A1 (en) | Stenches for odourising heating gases, and the use thereof | |
DE10235749A1 (en) | Odorizing methane-rich fuel gases, especially natural gas, comprises adding a mixture of an alkyl (meth)acrylate and a liquid nitrogen compound | |
DE2259314A1 (en) | ODORIZING AGENTS FOR LIQUID GAS | |
DE10361466A1 (en) | Neutralizing agent for gas odorants | |
WO2006079607A1 (en) | Neutralisation agent for gas odorants | |
WO2005024413A1 (en) | Method for determining the concentration of acrylic acid-c1-c8-ester in combustible gas | |
DE1420000A1 (en) | For floor care, a liquid mixture that can be used for spraying under pressure was made up |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
8127 | New person/name/address of the applicant |
Owner name: E.ON RUHRGAS AG, 45138 ESSEN, DE Owner name: SYMRISE GMBH & CO. KG, 37603 HOLZMINDEN, DE |
|
8141 | Disposal/no request for examination |