CN102389831A - Catalyst for preparing propylene through propane catalytic dehydrogenation and preparation method thereof - Google Patents
Catalyst for preparing propylene through propane catalytic dehydrogenation and preparation method thereof Download PDFInfo
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- CN102389831A CN102389831A CN2011102833586A CN201110283358A CN102389831A CN 102389831 A CN102389831 A CN 102389831A CN 2011102833586 A CN2011102833586 A CN 2011102833586A CN 201110283358 A CN201110283358 A CN 201110283358A CN 102389831 A CN102389831 A CN 102389831A
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- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 title claims abstract description 70
- 239000003054 catalyst Substances 0.000 title claims abstract description 48
- 239000001294 propane Substances 0.000 title claims abstract description 35
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 title claims abstract description 33
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 title claims abstract description 33
- 238000002360 preparation method Methods 0.000 title claims abstract description 32
- 230000003197 catalytic effect Effects 0.000 title claims abstract description 30
- 238000006356 dehydrogenation reaction Methods 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 claims abstract description 25
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 20
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 11
- 238000006243 chemical reaction Methods 0.000 claims abstract description 9
- 239000002808 molecular sieve Substances 0.000 claims abstract description 9
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910052751 metal Inorganic materials 0.000 claims abstract description 8
- 239000002184 metal Substances 0.000 claims abstract description 8
- 229910052697 platinum Inorganic materials 0.000 claims abstract description 4
- 229910052718 tin Inorganic materials 0.000 claims abstract description 3
- 239000000243 solution Substances 0.000 claims description 19
- 239000007864 aqueous solution Substances 0.000 claims description 16
- 239000000843 powder Substances 0.000 claims description 16
- 239000003795 chemical substances by application Substances 0.000 claims description 12
- 238000013329 compounding Methods 0.000 claims description 12
- 238000003756 stirring Methods 0.000 claims description 9
- 238000007598 dipping method Methods 0.000 claims description 7
- 238000006424 Flood reaction Methods 0.000 claims description 5
- 239000002253 acid Substances 0.000 claims description 4
- 241000700735 Ground squirrel hepatitis virus Species 0.000 claims description 3
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 claims description 3
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 3
- 239000008367 deionised water Substances 0.000 claims description 3
- 229910021641 deionized water Inorganic materials 0.000 claims description 3
- 230000007935 neutral effect Effects 0.000 claims description 3
- 150000003057 platinum Chemical class 0.000 claims description 3
- 239000012495 reaction gas Substances 0.000 claims description 3
- 239000004094 surface-active agent Substances 0.000 claims description 3
- 238000005406 washing Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000002474 experimental method Methods 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 238000012216 screening Methods 0.000 claims description 2
- 230000008901 benefit Effects 0.000 abstract description 4
- 238000011161 development Methods 0.000 abstract description 3
- 239000000969 carrier Substances 0.000 abstract 2
- 238000007654 immersion Methods 0.000 abstract 2
- 239000004480 active ingredient Substances 0.000 abstract 1
- 150000002739 metals Chemical class 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 8
- 239000007789 gas Substances 0.000 description 4
- -1 polypropylene Polymers 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 238000006555 catalytic reaction Methods 0.000 description 3
- KBPLFHHGFOOTCA-UHFFFAOYSA-N 1-Octanol Chemical compound CCCCCCCCO KBPLFHHGFOOTCA-UHFFFAOYSA-N 0.000 description 2
- 150000001335 aliphatic alkanes Chemical class 0.000 description 2
- RWGFKTVRMDUZSP-UHFFFAOYSA-N cumene Chemical compound CC(C)C1=CC=CC=C1 RWGFKTVRMDUZSP-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical class CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 1
- IGFHQQFPSIBGKE-UHFFFAOYSA-N Nonylphenol Natural products CCCCCCCCCC1=CC=C(O)C=C1 IGFHQQFPSIBGKE-UHFFFAOYSA-N 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 229910002846 Pt–Sn Inorganic materials 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 239000001273 butane Substances 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000004523 catalytic cracking Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000002075 main ingredient Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 description 1
- OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 1
- SNQQPOLDUKLAAF-UHFFFAOYSA-N nonylphenol Chemical compound CCCCCCCCCC1=CC=CC=C1O SNQQPOLDUKLAAF-UHFFFAOYSA-N 0.000 description 1
- TVMXDCGIABBOFY-UHFFFAOYSA-N octane Chemical compound CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 description 1
- 238000005839 oxidative dehydrogenation reaction Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts
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- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Catalysts (AREA)
Abstract
The invention relates to a catalyst for preparing propylene through propane catalytic dehydrogenation, which is a load type platinum-based catalyst and is characterized in that home-made mesoporous molecular sieves MCM-41 are used as carriers, metal Pt is used as an active ingredient, and metals Sn, Sn-Ce or Sn-Ce-Ca are used as auxiliary agents. In a preparation method, an isovolumetric continuous immersion method is adopted for preparation. The catalyst and the preparation method have the advantages that the isovolumetric continuous immersion method is adopted for preparing multi-component catalysts, wherein the content of any one component is easy to control, the prepared catalyst has higher specific surface area (700 to 900m<2>/g) and has high catalytic activity, the propane conversion rate is high, the propylene selectivity is good, the one-path stability is good, in addition, the service life is longer, the preparation method of the catalyst carriers is simple and feasible, the economic benefit is obvious, and good industrial development and application prospects are realized.
Description
Technical field
The present invention relates to the catalysis technique of preparing propylene by dehydrogenating propane, particularly a kind ofly be used for the Catalysts and its preparation method that the propane catalytic dehydrogenation prepares propylene.
Background technology
Propylene is a kind of basic Organic Chemicals, and its economic worth is self-evident.Purposes relates to a lot of aspects; Except being used to make the polypropylene; Also in large quantities as the primary raw material of producing products such as acrylonitrile, butanols, octanol, expoxy propane, isopropylbenzene and nonyl phenol, the oligomer of propylene is the Main Ingredients and Appearance that improves octane number in addition.At present, the propylene supply is mainly from the byproduct of naphtha pyrolysis system ethene and petroleum catalytic cracking process.Along with the development of petro chemical industry, the demand of propylene is increasing, and supply falls short of demand further.China's propane flammable gas aboundresources, but major part is used as domestic fuel, how will measure rich inexpensive propane and make market propylene in short supply, that high added value is arranged through the catalysis dehydrogenation reaction, is the difficult point and the focus of current research.At present, adopt the technology of preparing propylene by dehydrogenating propane to mainly contain: 1) oxidative dehydrogenation, 2) catalytic dehydrogenation, 3) membrane reactor dehydrogenation.Though the dehydrogenating propane process units is not set up in the domestic dehydrogenation research of yet having carried out low-carbon alkanes aspects such as propane, butane of China at present as yet.Typical alkene industrialized producing technology has the Catofin technology of Lummus company and the Oleflex technology of Uop Inc., also has the STAR technology of Phillips company and the PDH technology of Linde-BASF company in addition.
The load type platinum series catalysts is one type of important alkane dehydrogenating catalyst, can be used for the reformation and the dehydrogenation of alkane.Such catalyst is to be prepared from activity component metal platinum and the various metal promoters of interpolation.Platinum group catalyst possesses the conversion ratio height, select that performance is good, good stability and characteristics such as environmentally friendly, thereby has extraordinary prospects for commercial application.
Summary of the invention
The objective of the invention is to provides a kind of Catalysts and its preparation method that the propane catalytic dehydrogenation prepares propylene that is used for to above-mentioned technical Analysis, and this catalyst activity is high, good, the long service life of selectivity; This catalyst adopts the preparation of equal-volume continuous impregnating method, and technology is simple, easy operating, helps applying.
Technical scheme of the present invention:
A kind ofly be used for the catalyst that the propane catalytic dehydrogenation prepares propylene; Be the load type platinum series catalysts; It is characterized in that: by homemade mesopore molecular sieve MCM-41 is carrier; With metal Pt is active component, is that auxiliary agent constitutes with metal Sn, Sn-Ce or Sn-Ce-Ca, and the quality percentage composition of each component is in the catalyst: active component Pt 0.1-1.0%, auxiliary agent Sn 0.3-1.2%, Ce 0.5-3.0%, Ca 0.1-2.0%.
The preparation method of said mesopore molecular sieve MCM-41 is: after 4.0 g softex kws are added the dissolving of 104.0 mL deionized water for stirring; Slowly drip the 20.0mL ethyl orthosilicate; Stir 10 min, slowly drip 48.0mL ammoniacal liquor again, stir 3-4 h under the room temperature; Filter with sand core funnel after leaving standstill 48 h, washing to filtrating is neutral, and room temperature is dried in the shade and promptly got former powder; Former powder is put 120 ℃ of oven dry of people's baking oven, 12 h, grind into powder, roasting in Muffle furnace earlier at 350 ℃ of constant temperature 2 h, is warmed up to 550 ℃ of constant temperature 5 h again, cools off naturally, promptly obtains removing the mesopore molecular sieve MCM-41 of surfactant.
A kind ofly be used for the Preparation of catalysts method that the propane catalytic dehydrogenation prepares propylene, adopt the preparation of equal-volume continuous impregnating method, step is following:
1) preparation of powder MCM-41 carrier: the sample after the roasting after fully grinding, is used powder with obtaining experiment after the screening of 40 purpose sieves;
2) first before the dipping, earlier with carrier at 550 ℃ of following roasting 4h, then with first kind of compounding agent solution dipping 12h, 60 ℃ ,-remove with Rotary Evaporators under the 0.08Mp pressure condition and desolvate, dry 12h under 120 ℃, 550 ℃ of following roasting 4h;
3) according to step 2) described in identical method flood other compounding agent solution again;
4) final impregnating active component platinum; Method is with the carrier that has flooded behind all compounding agent solutions, floods 12h with chloroplatinic acid aqueous solution, 60 ℃ ,-remove with Rotary Evaporators under the 0.08Mp pressure condition and desolvate; Dry 12h under 120 ℃, 550 ℃ of following roasting 4h can make catalyst.
Said is that the compounding agent solution of auxiliary agent is SnCl with Sn
2Ethanolic solution, SnCl
2The concentration of ethanolic solution is 0.0084-0.0337 mol/L.
Said is that the compounding agent solution of auxiliary agent is Ce (NO with Ce
3)
3The aqueous solution, Ce (NO
3)
3The concentration of the aqueous solution is 0.0119-0.0714mol/L.
Said is that the compounding agent solution of auxiliary agent is Ca (NO with Ca
3)
2The aqueous solution, Ca (NO
3)
2The concentration of the aqueous solution is 0.0083-0.167mol/L.
The concentration of said chloroplatinic acid aqueous solution is 0.0017-0.0170mol/L.
A kind ofly be used for the Application of Catalyst that the propane catalytic dehydrogenation prepares propylene, be used for the propane catalytic dehydrogenation and prepare propylene, the catalytic dehydrogenating reaction condition is: temperature 550-650 ℃, the space-time speed (GSHV) of pressure 0.1Mp, reaction gas are 2500-4000h
-1
Advantage of the present invention is: adopt continuous equi-volume impregnating to prepare multicomponent catalyst, wherein arbitrary constituent content all is easy to control; The catalyst of preparation has higher specific surface area (700-900m
2/ g); The catalyst of preparation has high catalytic activity, and conversion of propane is high, and good to the propylene selectivity, one way good stability and life-span are longer; This catalyst carrier preparation method simple possible, remarkable in economical benefits has the favorable industrial development prospect.
Description of drawings
Fig. 1 is that A, B, three kinds of catalyst of C are to propane catalytic dehydrogenation conversion ratio.
Fig. 2 is that A, B, three kinds of catalyst of C are to propane catalytic dehydrogenation selectivity.
The specific embodiment
Through instantiation the present invention is done further explanation below.
At first prepare mesopore molecular sieve MCM-41 powder; Method is: after 4.0 g softex kws are added the dissolving of 104.0 mL deionized water for stirring, slowly drip the 20.0mL ethyl orthosilicate, stir 10 min; Slowly drip 48.0mL ammoniacal liquor again, stir 3-4 h under the room temperature; Filter with sand core funnel after leaving standstill 48 h, washing to filtrating is neutral, and room temperature is dried in the shade and promptly got former powder; Former powder is put 120 ℃ of oven dry of people's baking oven, 12 h, grind into powder, roasting in Muffle furnace earlier at 350 ℃ of constant temperature 2 h, is warmed up to 550 ℃ of constant temperature 5 h again, cools off naturally, promptly obtains removing the mesopore molecular sieve MCM-41 of surfactant.
Embodiment 1:
A kind ofly be used for the Preparation of catalysts method that the propane catalytic dehydrogenation prepares propylene, adopt the preparation of equal-volume continuous impregnating method, step is following:
1) takes by weighing homemade powder MCM-41 carrier 3.0g, in 550 ℃ of following roasting 4h;
2) use the SnCl of concentration as 0.0168mol/L
2Ethanolic solution 9.0ml dipping 1) the MCM-41 carrier 12 h in the step after the roasting, then 60 ℃ ,-remove with Rotary Evaporators under the 0.08Mp condition and desolvate, 120 ℃ of dry 12h down, 550 ℃ of following roasting 4h;
3) use the H of concentration again as 0.0068mol/L
2PtCl
6Aqueous solution 9.0ml dipping 2) the sample 12h of step after handling, 60 ℃ ,-remove with Rotary Evaporators under the 0.08Mp condition and desolvate, 120 ℃ of dry 12h down, 550 ℃ of following roasting 4h make catalyst A at last.
The catalyst A component is: Pt-Sn/MCM-41, and the catalytic reaction temperature is 550-620 ℃, and pressure is 0.1Mp, and reaction gas space-time speed (GSHV) is 2500-4000h
-1, react the back gaseous product through the gas chromatograph on-line analysis, conversion of propane such as Fig. 1, the selectivity of propylene such as Fig. 2.
Embodiment 2:
A kind ofly be used for the Preparation of catalysts method that the propane catalytic dehydrogenation prepares propylene, adopt the preparation of equal-volume continuous impregnating method, step is following:
1) takes by weighing homemade powder MCM-41 carrier 3.0g, in 550 ℃ of following roasting 4h;
2) use the Ce (NO of concentration as 0.0291mol/L
3)
3Aqueous solution 9.0ml floods 12h, then 60 ℃ ,-remove with Rotary Evaporators under the 0.08Mp condition and desolvate, 120 ℃ of dry 12h down, 550 ℃ of following roasting 4h;
3) to 2) sample after the step handles floods 0.0168mol/L SnCl again
2Ethanolic solution 9.0ml, its preparation process and the 2nd) step identical;
4) at last to 3) sample dipping concentration after the step handles is 0.0068mol/L H
2PtCl
6Aqueous solution 9.0ml, its preparation process and condition and step 2) identical, can make catalyst B.
The component of catalyst B is: Pt-Sn-Ce/MCM-41, the catalytic applications testing conditions is identical with embodiment 1, reacts the back gaseous product through the gas chromatograph on-line analysis, conversion of propane such as Fig. 1, the selectivity of propylene such as Fig. 2.
Embodiment 3:
A kind ofly be used for the Preparation of catalysts method that the propane catalytic dehydrogenation prepares propylene, adopt the preparation of equal-volume continuous impregnating method, step is following:
1) step 1) with embodiment 2 is identical;
2) with the step 2 of embodiment 2) identical;
3) step 3) with embodiment 2 is identical;
4) with the sample after the processing of step 3) step, use the Ca (NO of concentration again as 0.0167mol/L
3)
2Solution 9.0ml floods 12h, then 60 ℃ ,-remove with Rotary Evaporators under the 0.08Mp condition and desolvate, 120 ℃ of dry 12h down, 550 ℃ of following roasting 4h;
5) sample after the above-mentioned processing impregnated in the H that concentration is 0.0068mol/L
2PtCl
6Among the aqueous solution 9.0ml, then 60 ℃ ,-remove with Rotary Evaporators under the 0.08Mp condition and desolvate, 120 ℃ of dry 12h down, 550 ℃ of following roasting 4h can make catalyst C.
The component of catalyst C is: Pt-Sn-Ce-Ca/MCM-41, the catalytic applications testing conditions is identical with embodiment 1, reacts the back gaseous product through the gas chromatograph on-line analysis, conversion of propane such as Fig. 1, the selectivity of propylene such as Fig. 2.
Claims (8)
1. one kind is used for the catalyst that the propane catalytic dehydrogenation prepares propylene; Be the load type platinum series catalysts; It is characterized in that: by homemade mesopore molecular sieve MCM-41 is carrier; With metal Pt is active component, is that auxiliary agent constitutes with metal Sn, Sn-Ce or Sn-Ce-Ca, and the quality percentage composition of each component is in the catalyst: active component Pt 0.1-1.0%, auxiliary agent Sn 0.3-1.2%, Ce 0.5-3.0%, Ca 0.1-2.0%.
2. be used for the catalyst that the propane catalytic dehydrogenation prepares propylene according to claim 1 is said; It is characterized in that: the preparation method of said mesopore molecular sieve MCM-41 is: after 4.0 g softex kws are added the dissolving of 104.0 mL deionized water for stirring; Slowly drip the 20.0mL ethyl orthosilicate; Stir 10 min, slowly drip 48.0mL ammoniacal liquor again, stir 3-4 h under the room temperature; Filter with sand core funnel after leaving standstill 48 h, washing to filtrating is neutral, and room temperature is dried in the shade and promptly got former powder; Former powder is put 120 ℃ of oven dry of people's baking oven, 12 h, grind into powder, roasting in Muffle furnace earlier at 350 ℃ of constant temperature 2 h, is warmed up to 550 ℃ of constant temperature 5 h again, cools off naturally, promptly obtains removing the mesopore molecular sieve MCM-41 of surfactant.
3. one kind is used for the Preparation of catalysts method that the propane catalytic dehydrogenation prepares propylene according to claim 1, it is characterized in that: adopt the preparation of equal-volume continuous impregnating method, step is following:
1) preparation of powder MCM-41 carrier: the sample after the roasting after fully grinding, is used powder with obtaining experiment after the screening of 40 purpose sieves;
2) first before the dipping, earlier with carrier at 550 ℃ of following roasting 4h, then with first kind of compounding agent solution dipping 12h, 60 ℃ ,-remove with Rotary Evaporators under the 0.08Mp pressure condition and desolvate, dry 12h under 120 ℃, 550 ℃ of following roasting 4h;
3) according to step 2) described in identical method flood other compounding agent solution again;
4) final impregnating active component platinum; Method is with the carrier that has flooded behind all compounding agent solutions, floods 12h with chloroplatinic acid aqueous solution, 60 ℃ ,-remove with Rotary Evaporators under the 0.08Mp pressure condition and desolvate; Dry 12h under 120 ℃, 550 ℃ of following roasting 4h can make catalyst.
4. be used for the Preparation of catalysts method that the propane catalytic dehydrogenation prepares propylene according to claim 3 is said, it is characterized in that: said is that the compounding agent solution of auxiliary agent is SnCl with Sn
2Ethanolic solution, SnCl
2The concentration of ethanolic solution is 0.0084-0.0337 mol/L.
5. be used for the Preparation of catalysts method that the propane catalytic dehydrogenation prepares propylene according to claim 3 is said, it is characterized in that: said is that the compounding agent solution of auxiliary agent is Ce (NO with Ce
3)
3The aqueous solution, Ce (NO
3)
3The concentration of the aqueous solution is 0.0119-0.0714mol/L.
6. be used for the Preparation of catalysts method that the propane catalytic dehydrogenation prepares propylene according to claim 3 is said, it is characterized in that: said is that the compounding agent solution of auxiliary agent is Ca (NO with Ca
3)
2The aqueous solution, Ca (NO
3)
2The concentration of the aqueous solution is 0.0083-0.167mol/L.
7. be used for the Preparation of catalysts method that the propane catalytic dehydrogenation prepares propylene according to claim 3 is said, it is characterized in that: the concentration of said chloroplatinic acid aqueous solution is 0.0017-0.0170mol/L.
8. one kind is used for the Application of Catalyst that the propane catalytic dehydrogenation prepares propylene according to claim 1; It is characterized in that: be used for the propane catalytic dehydrogenation and prepare propylene, the catalytic dehydrogenating reaction condition is: temperature 550-650 ℃, the space-time speed (GSHV) of pressure 0.1Mp, reaction gas are 2500-4000h
-1
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103977797A (en) * | 2014-05-20 | 2014-08-13 | 南开大学 | Preparation method and application of catalyst for preparing propylene by propane dehydrogenation |
| CN104248968A (en) * | 2013-06-28 | 2014-12-31 | 中国石油化工股份有限公司 | Catalyst for preparation of propylene by direct dehydrogenation of propane and preparation method thereof |
| CN104941640A (en) * | 2015-05-29 | 2015-09-30 | 南开大学 | Catalyst for production of propylene through catalytic dehydrogenation of propane, and preparation method thereof |
| CN108855066A (en) * | 2017-05-10 | 2018-11-23 | 中国石油化工股份有限公司 | The method of propane dehydrogenation catalyst and preparation method thereof and preparing propylene by dehydrogenating propane |
| CN110496635A (en) * | 2018-05-17 | 2019-11-26 | 中国石油化工股份有限公司 | The method of dehydrogenation of isobutane catalyst and preparation method thereof and preparing isobutene through dehydrogenation of iso-butane |
| CN112221491A (en) * | 2019-06-30 | 2021-01-15 | 中国石油化工股份有限公司 | Isobutane dehydrogenation catalyst with modified spherical mesoporous material as carrier and preparation method and application thereof |
| EP3858478A1 (en) * | 2020-01-31 | 2021-08-04 | SCG Chemicals Co., Ltd. | Stable, high selectivity catalysts and catalyst systems, and processes for their use |
| CN113828327A (en) * | 2020-06-24 | 2021-12-24 | 中国石油化工股份有限公司 | Catalyst, preparation method and application thereof, and method for preparing olefin through alkane dehydrogenation |
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