JP5498702B2 - ナフサ水素化脱硫のためのシリカ担体を有する選択的触媒 - Google Patents
ナフサ水素化脱硫のためのシリカ担体を有する選択的触媒 Download PDFInfo
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- JP5498702B2 JP5498702B2 JP2008550457A JP2008550457A JP5498702B2 JP 5498702 B2 JP5498702 B2 JP 5498702B2 JP 2008550457 A JP2008550457 A JP 2008550457A JP 2008550457 A JP2008550457 A JP 2008550457A JP 5498702 B2 JP5498702 B2 JP 5498702B2
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 147
- 239000003054 catalyst Substances 0.000 claims description 130
- 150000001336 alkenes Chemical class 0.000 claims description 71
- 239000000377 silicon dioxide Substances 0.000 claims description 71
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 claims description 68
- 238000000034 method Methods 0.000 claims description 60
- 239000011148 porous material Substances 0.000 claims description 55
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 33
- 239000012018 catalyst precursor Substances 0.000 claims description 26
- 239000013110 organic ligand Substances 0.000 claims description 26
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 20
- 229910052717 sulfur Inorganic materials 0.000 claims description 20
- 239000011593 sulfur Substances 0.000 claims description 20
- 230000008569 process Effects 0.000 claims description 15
- 239000006259 organic additive Substances 0.000 claims description 14
- 239000003795 chemical substances by application Substances 0.000 claims description 13
- 150000002751 molybdenum Chemical class 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 11
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 10
- 239000007789 gas Substances 0.000 claims description 10
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- 239000002184 metal Substances 0.000 claims description 10
- 150000001868 cobalt Chemical class 0.000 claims description 9
- 238000001035 drying Methods 0.000 claims description 9
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical group S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 claims description 8
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- 229910000037 hydrogen sulfide Inorganic materials 0.000 claims description 8
- 239000007864 aqueous solution Substances 0.000 claims description 7
- 229910052757 nitrogen Inorganic materials 0.000 claims description 7
- 238000005486 sulfidation Methods 0.000 claims description 7
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 6
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- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 claims description 5
- ODKSFYDXXFIFQN-BYPYZUCNSA-P L-argininium(2+) Chemical compound NC(=[NH2+])NCCC[C@H]([NH3+])C(O)=O ODKSFYDXXFIFQN-BYPYZUCNSA-P 0.000 claims description 5
- ODKSFYDXXFIFQN-UHFFFAOYSA-N arginine Natural products OC(=O)C(N)CCCNC(N)=N ODKSFYDXXFIFQN-UHFFFAOYSA-N 0.000 claims description 5
- 229910052739 hydrogen Inorganic materials 0.000 claims description 5
- 239000003446 ligand Substances 0.000 claims description 5
- RNMCCPMYXUKHAZ-UHFFFAOYSA-N 2-[3,3-diamino-1,2,2-tris(carboxymethyl)cyclohexyl]acetic acid Chemical compound NC1(N)CCCC(CC(O)=O)(CC(O)=O)C1(CC(O)=O)CC(O)=O RNMCCPMYXUKHAZ-UHFFFAOYSA-N 0.000 claims description 4
- ZRALSGWEFCBTJO-UHFFFAOYSA-N Guanidine Chemical compound NC(N)=N ZRALSGWEFCBTJO-UHFFFAOYSA-N 0.000 claims description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 4
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- MGFYIUFZLHCRTH-UHFFFAOYSA-N nitrilotriacetic acid Chemical compound OC(=O)CN(CC(O)=O)CC(O)=O MGFYIUFZLHCRTH-UHFFFAOYSA-N 0.000 claims description 4
- YGSDEFSMJLZEOE-UHFFFAOYSA-N salicylic acid Chemical compound OC(=O)C1=CC=CC=C1O YGSDEFSMJLZEOE-UHFFFAOYSA-N 0.000 claims description 4
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- 238000004519 manufacturing process Methods 0.000 claims description 3
- 125000004433 nitrogen atom Chemical group N* 0.000 claims description 3
- POILWHVDKZOXJZ-ARJAWSKDSA-M (z)-4-oxopent-2-en-2-olate Chemical compound C\C([O-])=C\C(C)=O POILWHVDKZOXJZ-ARJAWSKDSA-M 0.000 claims description 2
- QNAYBMKLOCPYGJ-REOHCLBHSA-N L-alanine Chemical compound C[C@H](N)C(O)=O QNAYBMKLOCPYGJ-REOHCLBHSA-N 0.000 claims description 2
- HNDVDQJCIGZPNO-YFKPBYRVSA-N L-histidine Chemical compound OC(=O)[C@@H](N)CC1=CN=CN1 HNDVDQJCIGZPNO-YFKPBYRVSA-N 0.000 claims description 2
- CHJJGSNFBQVOTG-UHFFFAOYSA-N N-methyl-guanidine Natural products CNC(N)=N CHJJGSNFBQVOTG-UHFFFAOYSA-N 0.000 claims description 2
- DGEZNRSVGBDHLK-UHFFFAOYSA-N [1,10]phenanthroline Chemical compound C1=CN=C2C3=NC=CC=C3C=CC2=C1 DGEZNRSVGBDHLK-UHFFFAOYSA-N 0.000 claims description 2
- 235000004279 alanine Nutrition 0.000 claims description 2
- 150000001412 amines Chemical class 0.000 claims description 2
- 235000001014 amino acid Nutrition 0.000 claims description 2
- 150000001413 amino acids Chemical class 0.000 claims description 2
- 150000001414 amino alcohols Chemical class 0.000 claims description 2
- 150000001732 carboxylic acid derivatives Chemical class 0.000 claims description 2
- 229910000428 cobalt oxide Inorganic materials 0.000 claims description 2
- IVMYJDGYRUAWML-UHFFFAOYSA-N cobalt(ii) oxide Chemical compound [Co]=O IVMYJDGYRUAWML-UHFFFAOYSA-N 0.000 claims description 2
- SWSQBOPZIKWTGO-UHFFFAOYSA-N dimethylaminoamidine Natural products CN(C)C(N)=N SWSQBOPZIKWTGO-UHFFFAOYSA-N 0.000 claims description 2
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- 150000002148 esters Chemical class 0.000 claims description 2
- HNDVDQJCIGZPNO-UHFFFAOYSA-N histidine Natural products OC(=O)C(N)CC1=CN=CN1 HNDVDQJCIGZPNO-UHFFFAOYSA-N 0.000 claims description 2
- 150000002576 ketones Chemical class 0.000 claims description 2
- 229910000476 molybdenum oxide Inorganic materials 0.000 claims description 2
- PQQKPALAQIIWST-UHFFFAOYSA-N oxomolybdenum Chemical compound [Mo]=O PQQKPALAQIIWST-UHFFFAOYSA-N 0.000 claims description 2
- FJKROLUGYXJWQN-UHFFFAOYSA-N papa-hydroxy-benzoic acid Natural products OC(=O)C1=CC=C(O)C=C1 FJKROLUGYXJWQN-UHFFFAOYSA-N 0.000 claims description 2
- LISFMEBWQUVKPJ-UHFFFAOYSA-N quinolin-2-ol Chemical compound C1=CC=C2NC(=O)C=CC2=C1 LISFMEBWQUVKPJ-UHFFFAOYSA-N 0.000 claims description 2
- 229960004889 salicylic acid Drugs 0.000 claims description 2
- 150000005846 sugar alcohols Polymers 0.000 claims description 2
- 125000004430 oxygen atom Chemical group O* 0.000 claims 2
- 150000001408 amides Chemical class 0.000 claims 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 31
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 23
- 239000000243 solution Substances 0.000 description 22
- 238000005470 impregnation Methods 0.000 description 19
- 230000000694 effects Effects 0.000 description 16
- 238000006243 chemical reaction Methods 0.000 description 15
- 239000007787 solid Substances 0.000 description 14
- -1 cyclic olefins Chemical class 0.000 description 13
- 238000011156 evaluation Methods 0.000 description 13
- TVMXDCGIABBOFY-UHFFFAOYSA-N octane Chemical compound CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 description 9
- 229910017052 cobalt Inorganic materials 0.000 description 8
- 239000010941 cobalt Substances 0.000 description 8
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 8
- 238000009826 distribution Methods 0.000 description 8
- 229910052750 molybdenum Inorganic materials 0.000 description 8
- 150000003839 salts Chemical class 0.000 description 8
- JLAIPADPFFTYLP-UHFFFAOYSA-L cobalt(2+);hydrogen carbonate;hydroxide Chemical compound O.[Co+2].[O-]C([O-])=O JLAIPADPFFTYLP-UHFFFAOYSA-L 0.000 description 6
- 229930195733 hydrocarbon Natural products 0.000 description 6
- 150000002430 hydrocarbons Chemical class 0.000 description 6
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 6
- 229910052753 mercury Inorganic materials 0.000 description 6
- 241000899793 Hypsophrys nicaraguensis Species 0.000 description 5
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 5
- 238000005984 hydrogenation reaction Methods 0.000 description 5
- 239000011733 molybdenum Substances 0.000 description 5
- 239000002994 raw material Substances 0.000 description 5
- 230000004913 activation Effects 0.000 description 4
- 238000009835 boiling Methods 0.000 description 4
- 238000009792 diffusion process Methods 0.000 description 4
- WQOXQRCZOLPYPM-UHFFFAOYSA-N dimethyl disulfide Chemical compound CSSC WQOXQRCZOLPYPM-UHFFFAOYSA-N 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000003208 petroleum Substances 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- PXRKCOCTEMYUEG-UHFFFAOYSA-N 5-aminoisoindole-1,3-dione Chemical compound NC1=CC=C2C(=O)NC(=O)C2=C1 PXRKCOCTEMYUEG-UHFFFAOYSA-N 0.000 description 3
- 239000004215 Carbon black (E152) Substances 0.000 description 3
- QMMFVYPAHWMCMS-UHFFFAOYSA-N Dimethyl sulfide Chemical compound CSC QMMFVYPAHWMCMS-UHFFFAOYSA-N 0.000 description 3
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 3
- 239000012071 phase Substances 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 239000012266 salt solution Substances 0.000 description 3
- 241000282326 Felis catus Species 0.000 description 2
- LSDPWZHWYPCBBB-UHFFFAOYSA-N Methanethiol Chemical compound SC LSDPWZHWYPCBBB-UHFFFAOYSA-N 0.000 description 2
- JJWKPURADFRFRB-UHFFFAOYSA-N carbonyl sulfide Chemical compound O=C=S JJWKPURADFRFRB-UHFFFAOYSA-N 0.000 description 2
- 239000000969 carrier Substances 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 239000003085 diluting agent Substances 0.000 description 2
- 238000004231 fluid catalytic cracking Methods 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
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- 150000008117 polysulfides Polymers 0.000 description 2
- 238000002459 porosimetry Methods 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
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- XQQBUAPQHNYYRS-UHFFFAOYSA-N 2-methylthiophene Chemical compound CC1=CC=CS1 XQQBUAPQHNYYRS-UHFFFAOYSA-N 0.000 description 1
- BWGNESOTFCXPMA-UHFFFAOYSA-N Dihydrogen disulfide Chemical compound SS BWGNESOTFCXPMA-UHFFFAOYSA-N 0.000 description 1
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 description 1
- 239000005909 Kieselgur Substances 0.000 description 1
- QENGPZGAWFQWCZ-UHFFFAOYSA-N Methylthiophene Natural products CC=1C=CSC=1 QENGPZGAWFQWCZ-UHFFFAOYSA-N 0.000 description 1
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- 125000001931 aliphatic group Chemical group 0.000 description 1
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- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
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- QGJOPFRUJISHPQ-NJFSPNSNSA-N carbon disulfide-14c Chemical compound S=[14C]=S QGJOPFRUJISHPQ-NJFSPNSNSA-N 0.000 description 1
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- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
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- B01J21/06—Silicon, titanium, zirconium or hafnium; Oxides or hydroxides thereof
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- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/76—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/84—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
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- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G45/00—Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds
- C10G45/02—Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds to eliminate hetero atoms without changing the skeleton of the hydrocarbon involved and without cracking into lower boiling hydrocarbons; Hydrofinishing
- C10G45/04—Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds to eliminate hetero atoms without changing the skeleton of the hydrocarbon involved and without cracking into lower boiling hydrocarbons; Hydrofinishing characterised by the catalyst used
- C10G45/06—Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds to eliminate hetero atoms without changing the skeleton of the hydrocarbon involved and without cracking into lower boiling hydrocarbons; Hydrofinishing characterised by the catalyst used containing nickel or cobalt metal, or compounds thereof
- C10G45/08—Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds to eliminate hetero atoms without changing the skeleton of the hydrocarbon involved and without cracking into lower boiling hydrocarbons; Hydrofinishing characterised by the catalyst used containing nickel or cobalt metal, or compounds thereof in combination with chromium, molybdenum, or tungsten metals, or compounds thereof
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- B01J31/1805—Catalysts comprising hydrides, coordination complexes or organic compounds containing coordination complexes containing nitrogen, phosphorus, arsenic or antimony as complexing atoms, e.g. in pyridine ligands, or in resonance therewith, e.g. in isocyanide ligands C=N-R or as complexed central atoms the ligands containing nitrogen
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Description
一実施形態においては、硫黄を、最小のオレフィン飽和で、オレフィン質ナフサから選択的に除去するための触媒は、(a)コバルト塩、(b)モリブデン塩、および(c)少なくとも一種の有機添加剤で含浸されているシリカ担持触媒である。有機添加剤は、有機配位子である。シリカ担体は、シリカ担体基準でシリカ少なくとも約85重量%、好ましくはシリカ少なくとも約90重量%、特にはシリカ少なくとも約95重量%を含む。シリカ担体の例には、シリカ、MCM−41、シリカ結合MCM−41、フュームドシリカ、金属酸化物変性ケイ質担体、および珪藻土が含まれる。
シリカ担体は、従来の技術を用いて、CoおよびMo塩の水溶液で含浸された。有機配位子は、シリカ担体と接触させる前に、塩の水溶液へ添加されてもよい。シリカ担体を金属塩で含浸する一実施形態は、初期湿潤方法によるものである。この方法においては、金属塩および有機添加剤を含む水溶液は、担体と、従来の技術、即ち水素処理触媒の調製、製造、および使用の技術分野で周知の技術を用いて初期湿潤点まで混合される。
この実施例は、主題のSiO2担持CoMo触媒の重要な特徴を示す。これは、HDS反応の質量輸送速度を最大にすること、即ちこの反応の拡散制約を最小にすることである。触媒に関しては、断面直径約1.3〜約2.4mm、メジアン細孔径約200Å〜約2000Åを有する触媒球体および押出し成形物は、ナフサ範囲の硫黄含有分子を、触媒粒子の内外に効果的に出入りすることを可能にする。図1に示されるように、シリカ担体の細孔径を低減することにより、HDS反応の拡散制約がもたらされ、所望のHDSレベルでより多くのオレフィン飽和がもたらされる。図1−aにおいては、Y軸は、オレフィン飽和傾向であり、これは、90%HDS転化率における%C5オレフィン飽和(いずれも重量基準で測定される)として示される。X軸は、メジアン細孔直径(オングストローム)である。これは、名目断面直径約1.3mm〜約2.4mmを有する押出し成形物または球体のシリカ担体について、水銀圧入法によって測定される。参照として、同一条件下で試験されたAlbemarle製造の商業触媒(RT−225)(CoMo/Al2O3、1/16インチ円筒形押出し成形物)は、ナフサ中の硫黄およびオレフィンの重量基準で、C5オレフィン飽和14重量%(90%HDS転化率)を示す。参照触媒に比較して、図1−aに示されるシリカ担体上の全ての触媒は、より低いオレフィン飽和を有する。特に、シリカ担体の細孔径が200Åより大きい場合には、オレフィン飽和は、8%以下へ低減される。これは、参照触媒よりはるかに低い。メジアン細孔直径が200Å超に増大するにつれて、選択性は、向上し続ける。メジアン細孔直径が約500Å〜2000Åである場合には、オレフィン飽和は、ほぼ平坦/一定である。これは、拡散が、用いられる試験条件下では、もはやHDS反応に影響を及ぼさず、細孔径が、もはや選択性を制約しないことを示す。図1−b(「オレフィン飽和:メジアン細孔直径の逆数」のプロットである)に示されるように、オレフィン飽和は、シリカ担体のメジアン細孔直径の逆数に対して、線形関係を示す。図1−cに示されるように、そこにもまた、オレフィン飽和と、細孔直径約150Å超を有する細孔の%表面積との相関関係がある。
CoMo/シリカ触媒を、初期湿潤技術によって調製した。モリブデン尿素溶液を、ヘプタモリブデン酸アンモニウム四水和物および尿素を蒸留水に溶解することによって調製し、これを、最終触媒上のMoO3濃度が触媒の重量基準で21.3重量%であるようにシリカ担体SC−593上に含浸した。含浸された固体を、減圧下60℃で乾燥した。四種の異なるコバルト−有機配位子水溶液を、炭酸コバルト水和物をクエン酸(CoCA)、EDTA(CoEDTA)、ニトリロ三酢酸(CoNTA)、またはエチレンジアミン(CoEDA)と反応させることによって調製した。最終触媒上のCoO濃度が触媒の重量基準で5.3重量%であるように、各コバルト有機−配位子溶液を、Mo尿素/SC−593上に含浸した。触媒を、減圧下60℃で乾燥した。
二種の含浸溶液を、ヘプタモリブデン酸アンモニウム四水和物および炭酸コバルト水和物を、配位子としての二種の有機キレート化剤、即ちクエン酸(CA)およびアルギニン(Arg)で溶解することによって調製した。コバルト/モリブデンの原子比は、両溶液において0.48であった。乾燥された固体が触媒の重量基準でCoO5.2重量%およびMoO320.9重量%を含むであろうように、CoMo−CA溶液を、シリカ担体SC−743へ、初期湿潤含浸技術を総じて単一工程で用いて含浸した。含浸された固体を、減圧下60℃で乾燥した。CoMo−Arg溶液については、溶解性が低く、二重含浸(第一の含浸の後に、60℃で減圧乾燥することによる)が、同じ量のCoOおよびMoO3をSC−743担体上に含浸するのに必要とされた。
この実施例は、CoMo/Al2O3触媒の高温熟成および安定性に関する。上記のように調製されたCoMo/SiO2触媒を、次のように、工業参照CoMo/Al2O3触媒に対する安定性評価に付した。FCCナフサ原料を274℃(525゜F)で試験するMCFB−48装置の約1週間の後に、反応器の床温度を、299℃(570゜F)へ昇温し、570゜Fで約3日間熟成した。温度を、次いで、274℃(525゜F)へ下げ、触媒性能(オレフィン飽和およびHDS選択性)を評価した。反応器の床温度を、次いで、316℃(600゜F)へ再度昇温し、316℃で更に2日間熟成した。温度を、次いで、274℃(525゜F)へ再度下げ、触媒性能(オレフィン飽和およびHDS活性)を、評価した。
含浸溶液を、ヘプタモリブデン酸アンモニウム四水和物および炭酸コバルト水和物を、クエン酸水溶液に溶解することによって調製した。コバルト/モリブデンの原子比は、0.48であった。乾燥された固体が触媒の重量基準でCoO5.2重量%およびMoO320.9重量%を含むであろうように、CoMo−CA溶液を、シリカ担体SC−745、746、747、および748上に、初期湿潤含浸技術を総じて単一工程で用いて含浸した。含浸された固体を、減圧下60℃で乾燥した。
この実施例は、含浸シリカ担体の「空気乾燥:減圧乾燥」に関する。含浸溶液を、ヘプタモリブデン酸アンモニウム四水和物および炭酸コバルト水和物を、クエン酸水溶液(CA)に溶解することによって調製した。コバルト/モリブデンの原子比は、これらの溶液で、0.48であった。乾燥された固体が重量基準でCoO5.3重量%およびMoO321.4重量%を含むであろうように、CoMo−CA溶液を、シリカ担体SC−593上に、初期湿潤含浸技術を総じて一工程で用いて含浸した。含浸された固体を、減圧下60℃で乾燥した。同じCoMo−CA溶液およびシリカ担体SC−593を用いる他の調製においては、含浸された個体を、空気中110℃で乾燥した。第三の調製においては、含浸された固体を、空気中180℃で乾燥した。
より小さな細孔径の効果を、この実施例で示す。含浸溶液を、ヘプタモリブデン酸アンモニウム四水和物および炭酸コバルト水和物を、クエン酸水溶液に溶解することによって調製した。コバルト/モリブデンの原子比は、0.48であった。乾燥された固体が触媒の重量基準でCoO5.6重量%およびMoO322.4重量%を含むであろうように、CoMo−CA溶液を、シリカ担体SC−592上に、初期湿潤含浸技術を総じて単一工程で用いて含浸した。シリカ担体SC−595については、最終の乾燥された固体が触媒の重量基準でCoO3.8重量%およびMoO315.3重量%を含むであろうように、より少ない含浸溶液が用いられる。いずれの含浸された固体も、減圧下60℃で乾燥された。
Claims (18)
- ナフサを水素化脱硫するのに適切な触媒を作製する方法であって、
(i)シリカ基準でシリカ含有量少なくとも85重量%を有し、かつ細孔容積0.6cc/g〜2.0cc/gおよびメジアン細孔径150Å〜2000Åを有するシリカ担体を、(a)コバルト塩、(b)モリブデン塩および(c)少なくとも一種の有機添加剤の水溶液で含浸して、触媒前駆体を形成する工程;
(ii)前記触媒前駆体を温度200℃未満で乾燥して、乾燥触媒前駆体を形成する工程;および
(iii)前記乾燥触媒前駆体を硫化して、触媒を形成する工程(但し、硫化または水素化脱硫に使用する前に、前記乾燥触媒前駆体または触媒を焼成しない。)
を含み、
前記有機添加剤は、酸素原子および/または窒素原子を含む有機配位子である、
ことを特徴とする触媒の作製方法。 - ナフサの重量基準でオレフィン含有量少なくとも5重量%を有するナフサを水素化脱硫する方法であって、
(i)前記ナフサを、選択的水素化脱硫触媒と水素化脱硫条件下で接触させる工程であって、
前記選択的水素化脱硫触媒は、シリカの重量基準でシリカ含有量少なくとも85重量%を有し、かつ細孔容積0.6cc/g〜2.0cc/gおよびメジアン細孔径150Å〜2000Åを有するシリカ担体を、(a)コバルト塩、(b)モリブデン塩および(c)少なくとも一種の有機添加剤の水溶液で含浸して、触媒前駆体を形成することによって調製される工程;
(ii)前記触媒前駆体を温度200℃未満で乾燥して、乾燥触媒前駆体を形成する工程;および
(iii)前記乾燥触媒前駆体を硫化して、触媒を形成する工程(但し、硫化または水素化脱硫に使用する前に、前記乾燥触媒前駆体または触媒を焼成しない。)
を含み、
前記有機添加剤は、酸素原子および/または窒素原子を含む有機配位子である、
ことを特徴とするナフサの水素化脱硫方法。 - 前記シリカ担体は、細孔容積1.0cc/g〜1.5cc/gを有することを特徴とする請求項1または2に記載の方法。
- 前記メジアン細孔径は、150Å〜1000Åの範囲にあることを特徴とする請求項1または2に記載の方法。
- 前記ナフサは、FCCナフサ、スチーム分解ナフサおよびコーカーナフサよりなる群から選択される少なくとも一種であることを特徴とする請求項1または2に記載の方法。
- 前記ナフサは、ナフサ基準で、オレフィン含有量5重量%〜60重量%、窒素含有量5ppmw〜500ppmwおよび硫黄含有量300ppmw〜7000ppmwを有することを特徴とする請求項1または2に記載の方法。
- 前記シリカ担体は、シリカ少なくとも90重量%を含むことを特徴とする請求項1または2に記載の方法。
- 前記コバルト塩およびモリブデン塩の量は、シリカ担体基準で、酸化コバルト2重量%〜8重量%および酸化モリブデン8重量%〜30重量%を含む触媒担体を与えるのに十分であることを特徴とする請求項1または2に記載の方法。
- 前記有機配位子は、単座、二座または多座配位子であることを特徴とする請求項1または2に記載の方法。
- 前記有機配位子は、カルボン酸、多価アルコール、アミノ酸、アミン、アミド、アミノアルコール、ケトンおよびエステルよりなる群から選択される少なくとも一種であることを特徴とする請求項9に記載の方法。
- 前記有機配位子は、フェナントロリン、キノリロール、サリチル酸、酢酸、エチレンジアミン四酢酸(EDTA)、シクロヘキサンジアミン四酢酸(CYDTA)、アラニン、アルギニン、トリエタノールアミン(TEA)、グリセロール、ヒスチジン、アセチルアセトネート、グアニジン、ニトリロ三酢酸(NTA)、クエン酸および尿素よりなる群から選択される少なくとも一種であることを特徴とする請求項10に記載の方法。
- 前記有機添加剤は、金属分散助剤であることを特徴とする請求項1または2に記載の方法。
- 前記有機添加剤は、キレート化剤であることを特徴とする請求項1または2に記載の方法。
- 前記触媒前駆体は、温度50℃〜200℃で乾燥されることを特徴とする請求項1または2に記載の方法。
- 触媒前駆体の硫化工程は、少なくとも一種の硫化剤の存在下に、現場または現場外で行いうることを特徴とする請求項1または2に記載の方法。
- 前記硫化剤は、存在するガスの全容積基準で、濃度0.1体積%〜10体積%の硫化水素であることを特徴とする請求項15に記載の方法。
- 水素化脱硫条件は、温度150℃〜400℃、圧力445kPa〜13890kPa(50〜2000psig)、液空間速度0.1〜12時−1および水素処理ガス比89m3/m3〜890m3/m3(500〜5000scf/B)を含むことを特徴とする請求項2に記載の方法。
- 前記乾燥触媒前駆体または硫化触媒を、硫化または水素化脱硫に使用する前に、300℃を超える温度に加熱しないことを特徴とする請求項1または2に記載の方法。
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US75943306P | 2006-01-17 | 2006-01-17 | |
US60/759,433 | 2006-01-17 | ||
PCT/US2007/001002 WO2007084439A1 (en) | 2006-01-17 | 2007-01-12 | Selective catalysts having silica supports for naphtha hydrodesulfurization |
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EP1994123A1 (en) | 2008-11-26 |
CA2636177A1 (en) | 2007-07-26 |
TWI419964B (zh) | 2013-12-21 |
CN101374931B (zh) | 2013-03-27 |
ZA200806203B (en) | 2010-01-27 |
EP1994123B1 (en) | 2018-10-31 |
AR059059A1 (es) | 2008-03-12 |
BRPI0707142A2 (pt) | 2011-04-19 |
US20100320123A1 (en) | 2010-12-23 |
KR101379979B1 (ko) | 2014-04-01 |
CN101374931A (zh) | 2009-02-25 |
US8216958B2 (en) | 2012-07-10 |
KR20080091812A (ko) | 2008-10-14 |
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