CN102211022A - Method for preparing integral catalyst used in dehydration of propane to prepare propylene - Google Patents
Method for preparing integral catalyst used in dehydration of propane to prepare propylene Download PDFInfo
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- CN102211022A CN102211022A CN2010101442824A CN201010144282A CN102211022A CN 102211022 A CN102211022 A CN 102211022A CN 2010101442824 A CN2010101442824 A CN 2010101442824A CN 201010144282 A CN201010144282 A CN 201010144282A CN 102211022 A CN102211022 A CN 102211022A
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- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 title claims abstract description 42
- 239000001294 propane Substances 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title claims abstract description 14
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 title abstract description 22
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 title abstract description 22
- 239000003054 catalyst Substances 0.000 title abstract description 20
- 230000018044 dehydration Effects 0.000 title abstract 3
- 238000006297 dehydration reaction Methods 0.000 title abstract 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 48
- 229910052751 metal Inorganic materials 0.000 claims abstract description 23
- 239000002184 metal Substances 0.000 claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000008367 deionised water Substances 0.000 claims abstract description 9
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 9
- 238000001035 drying Methods 0.000 claims abstract description 5
- 238000002360 preparation method Methods 0.000 claims description 25
- 239000011247 coating layer Substances 0.000 claims description 18
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 18
- 239000011159 matrix material Substances 0.000 claims description 17
- 239000012752 auxiliary agent Substances 0.000 claims description 13
- 239000000470 constituent Substances 0.000 claims description 12
- 229910052878 cordierite Inorganic materials 0.000 claims description 12
- JSKIRARMQDRGJZ-UHFFFAOYSA-N dimagnesium dioxido-bis[(1-oxido-3-oxo-2,4,6,8,9-pentaoxa-1,3-disila-5,7-dialuminabicyclo[3.3.1]nonan-7-yl)oxy]silane Chemical group [Mg++].[Mg++].[O-][Si]([O-])(O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2)O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2 JSKIRARMQDRGJZ-UHFFFAOYSA-N 0.000 claims description 12
- 239000002002 slurry Substances 0.000 claims description 12
- BNGXYYYYKUGPPF-UHFFFAOYSA-M (3-methylphenyl)methyl-triphenylphosphanium;chloride Chemical compound [Cl-].CC1=CC=CC(C[P+](C=2C=CC=CC=2)(C=2C=CC=CC=2)C=2C=CC=CC=2)=C1 BNGXYYYYKUGPPF-UHFFFAOYSA-M 0.000 claims description 8
- 238000010926 purge Methods 0.000 claims description 6
- 239000011135 tin Substances 0.000 claims description 6
- 238000000498 ball milling Methods 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 5
- 238000007598 dipping method Methods 0.000 claims description 3
- 150000003839 salts Chemical class 0.000 claims description 3
- 229910052783 alkali metal Inorganic materials 0.000 claims description 2
- 150000001340 alkali metals Chemical class 0.000 claims description 2
- 229910052784 alkaline earth metal Inorganic materials 0.000 claims description 2
- 150000001342 alkaline earth metals Chemical class 0.000 claims description 2
- 239000010431 corundum Substances 0.000 claims description 2
- 229910052593 corundum Inorganic materials 0.000 claims description 2
- 239000010432 diamond Substances 0.000 claims description 2
- 229910003460 diamond Inorganic materials 0.000 claims description 2
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 claims description 2
- 229910052863 mullite Inorganic materials 0.000 claims description 2
- 239000010453 quartz Substances 0.000 claims description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 239000011248 coating agent Substances 0.000 abstract description 7
- 238000000576 coating method Methods 0.000 abstract description 7
- 229910017083 AlN Inorganic materials 0.000 abstract 1
- PIGFYZPCRLYGLF-UHFFFAOYSA-N Aluminum nitride Chemical compound [Al]#N PIGFYZPCRLYGLF-UHFFFAOYSA-N 0.000 abstract 1
- 238000007664 blowing Methods 0.000 abstract 1
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical group [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 17
- 238000006243 chemical reaction Methods 0.000 description 14
- 238000005516 engineering process Methods 0.000 description 8
- 229910052697 platinum Inorganic materials 0.000 description 6
- 239000000243 solution Substances 0.000 description 5
- 239000000047 product Substances 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 229910052718 tin Inorganic materials 0.000 description 4
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 238000006298 dechlorination reaction Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 239000011734 sodium Substances 0.000 description 3
- KBPLFHHGFOOTCA-UHFFFAOYSA-N 1-Octanol Chemical compound CCCCCCCCO KBPLFHHGFOOTCA-UHFFFAOYSA-N 0.000 description 2
- 238000006424 Flood reaction Methods 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- ZWRUINPWMLAQRD-UHFFFAOYSA-N nonan-1-ol Chemical compound CCCCCCCCCO ZWRUINPWMLAQRD-UHFFFAOYSA-N 0.000 description 2
- 238000004513 sizing Methods 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- NGNBDVOYPDDBFK-UHFFFAOYSA-N 2-[2,4-di(pentan-2-yl)phenoxy]acetyl chloride Chemical compound CCCC(C)C1=CC=C(OCC(Cl)=O)C(C(C)CCC)=C1 NGNBDVOYPDDBFK-UHFFFAOYSA-N 0.000 description 1
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 101710089042 Demethyl-4-deoxygadusol synthase Proteins 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical class CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 235000014121 butter Nutrition 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 238000004587 chromatography analysis Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 238000006356 dehydrogenation reaction Methods 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 238000007086 side reaction Methods 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000017105 transposition Effects 0.000 description 1
Classifications
-
- 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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- Catalysts (AREA)
Abstract
The invention provides a method for preparing an integral catalyst used in the dehydration of propane to prepare propylene. The method comprises the following steps of: grinding balls mixed by aluminium oxide, aluminium nitride and deionized water by a weight ratio of (30-70): (5-30):100 into paste; coating the paste on the surface of a base body porous channel with parallel porous channels; blowing the base body porous channel with compressed air; drying and baking a base body, and forming an aluminium oxide coating on the surface of the porous channel, wherein the weight ratio of the aluminium oxide coating to the base body is 0.15%-20%; immersing the base body with the aluminium oxide coating formed on the surface of the porous channel in a solution comprising metal activated components, wherein the weight ratio of the metal activated components to the aluminium oxide coating is 0.01%-1.1% based on the weight of metal; and after immersing, drying and baking to obtain the integral catalyst. The integral catalyst prepared by the method has good stability in the dehydration of propane to prepare propylene and has good propylene selectivity.
Description
Technical field
The present invention relates to a kind of integral catalyzer preparation method, more specifically, relate to a kind of integral catalyzer preparation method of preparing propylene by dehydrogenating propane.
Background technology
Propylene is as a kind of important Organic Chemicals, except producing polypropylene, also in large quantities as the raw material of producing other chemical products such as acrylonitrile, butanols, octanol, expoxy propane, isopropyl alcohol, acrylic acid and nonyl alcohol.Propylene is mainly derived from by-product or coproduction such as naphtha cracking and oil plant FCC technology at present.Growing along with the propylene demand, especially polyacrylic development, promoted surgingly increasing to the raw material propylene demand, and then promoted the development of various production of propylene technology, for example dehydrogenating propane, transposition conversion, higher olefins are cracked into propylene, methanol-to-olefins, change the DCC of oily process gas production and decompression diesel oil etc. from coal.Wherein the preparing propylene by dehydrogenating propane technology comes into one's own in recent years gradually, has become tertiary propylene source.
Having developed multiple dehydrogenating propane technology up to now, is representative with the Oleflex technology of Uop Inc. and the Catofin technology of U.S. Air Product company.Its usually adopt with platinum group be main active component, with Al
2O
3As catalyst carrier, contain the catalyst of various auxiliary agents simultaneously, on fixed bed reactors, carry out the dehydrogenating propane reaction.The outstanding problem that exists in this type of technology is that the catalyst heap is than big, bed layer pressure is big, reaction velocity is low, mass transfer causes the reaction bed temperature skewness slowly easily, side reaction easily further takes place in product, even degree of depth dehydrogenation causes carbon deposit, thereby normally carrying out of influence reaction shortens the service life of catalyst.
Integral catalyzer (momolithic catalyst) is the integrated catalyst by many narrow parallel channels proper alignment.The cross section of the integral catalyzer used carrier of early development is honeycomb, so be referred to as honeycombed catalyst again.With conventional particles shape catalyst very big difference is arranged, the geometric area of integral catalyzer is big, the porosity height, and bed pressure drop is little, and mass transfer effect is good, the reaction efficiency height.The existing preparation method (as disclosed Chinese patent application CN200610001330.8) who is used for the integral catalyzer of dehydrogenating propane reaction, normally components such as Pt, Sn are loaded to earlier on the aluminium oxide, add surfactant then and make slurry and be coated in and make coating on the cordierite.But this method needed raw material is many, the preparation process complexity, and the alumina slurry that purges the Pt of carried noble metal in the duct simultaneously can cause it not to be fully utilized, thereby has caused active component Pt to run off.
Summary of the invention
Therefore the present invention provides a kind of simple preparation method that is used for the integral catalyzer of dehydrogenating propane, promptly by in the matrix duct, applying pulp preparation alumina catalyst support coating earlier, and then with the method for infusion process load active component, solved active component and caused the problem of loss because of purging unnecessary slurry.The integral catalyzer of the inventive method preparation is good stability in the preparing propylene by dehydrogenating propane reaction, propylene selectivity height.
The preparation method of integral catalyzer provided by the invention may further comprise the steps: with weight ratio is (30～70): (5～30): 100 aluminium oxide, aluminum nitrate, deionized water mixing and ball milling are made slurry; Described slurry is coated on surface, matrix duct with parallel duct; Purge described matrix duct with compressed air; Dry, the described matrix of roasting make its surface, duct form aluminum oxide coating layer, and the weight ratio of described aluminum oxide coating layer and described matrix is 0.15%～20%, is preferably 1%～15%; The described matrix that the surface, duct is formed described aluminum oxide coating layer impregnated in the solution that contains metal active constituent, in weight metal, the weight ratio of described metal active constituent and described aluminum oxide coating layer is 0.01%～1.1%, be preferably 0.3%～0.7%, dipping back drying, roasting obtain described integral catalyzer.
Matrix of the present invention comprises cordierite, mullite, diamond, corundum, quartz, is preferably cordierite.
Metal active constituent of the present invention comprises VIII family metal, is preferably Pt.
Preparation method of the present invention adds auxiliary agent and alkaline assistant in the time of also can being included in the preparation slurry, being about to weight ratio is (30～70): (5～30): (0.01～7.5): (0.01～5.5): 100 aluminium oxide, aluminum nitrate, auxiliary agent, alkaline assistant and deionized water are made slurry together, described auxiliary agent comprises IVA family metal soluble salt, described alkaline assistant comprises the soluble-salt of alkali metal, alkaline-earth metal, described auxiliary agent is preferably the soluble-salt of Sn, and described alkaline assistant is preferably the soluble-salt of Na.The preferred addition of described auxiliary agent and described alkaline assistant is that the weight ratio of aluminium oxide, aluminum nitrate, auxiliary agent, alkaline assistant and deionized water is (30～70): (5～30): (0.01～4.5): (0.01～2.5): 100.
" solution that contains metal active constituent " refers to the solution that solute is one or more DDGS of metal active constituent herein, and for example, solute can be to contain this metal soluble salt, solubility acid or water soluble alkali etc. on forming.If metal active constituent is Pt, the solution that then contains metal active constituent is preferably the aqueous solution of chloroplatinic acid.In addition, known to persons skilled in the art, when relating to chlorine-containing compound in the preparation process, may need to carry out the dechlorination process and can obtain final integral formula catalyst.
Preparation method's needed raw material of integral catalyzer provided by the present invention is few, process is simple, and solved prior art and cause the problem of loss of active component because of purging, with catalyst good stability in the preparing propylene by dehydrogenating propane reaction of the inventive method preparation, propylene selectivity height.
The specific embodiment
Below by specific embodiment the present invention is described further.But should be appreciated that the present invention is not limited in following examples.
Embodiment 1
With hole density is 300 hole/square inches, and the sectional area in duct is 0.41mm
2, the honeycomb-like cordierite of the triangular shape of Φ 25mm * 30mm is after pickling, and drying obtains catalyst matrix at 650 ℃ of calcining 2h.52g aluminium oxide, 15g aluminum nitrate, 100g deionized water mixing and ball milling 4h are made slurry, be coated in and handle on the surface, honeycomb-like cordierite duct, back, after redundant sizing agent in the compressed air purging duct, at 100 ℃ of dry 12h, 650 ℃ of roasting 1h become uniform aluminum oxide coating layer, and wherein to account for the honeycomb-like cordierite percentage by weight be 4.7% to the weight of aluminum oxide coating layer.The cordierite that will contain aluminum oxide coating layer floods in platinum acid chloride solution, the amount of chloroplatinic acid is that the amount of dipping back platinum is equivalent to 0.5% of alumina weight, mechanical agitation 12h evenly floods platinum in 30 ℃ of water-baths, 100 ℃ of dry 12h, roasting 4h in 500 ℃ of air then, dechlorination 4h in 500 ℃ of air+steam obtains containing active component Pt again, is matrix with the honeycomb-like cordierite, is the integral catalyzer of carrier with the aluminium oxide.It is 4.7% that the weight of gained integral catalyzer aluminum oxide coating layer accounts for the honeycomb-like cordierite percentage by weight, and Pt weight is 0.5% with respect to the percentage by weight of aluminum oxide coating layer.
Embodiment 2
Preparing integral body according to the method for embodiment 1 is catalyst, and different is to make slurry with 52g aluminium oxide, 15g aluminum nitrate, 1.46g butter of tin, 1.22g sodium chloride and 100g deionized water mixing and ball milling.It is 4.7% that the weight of gained integral catalyzer aluminum oxide coating layer accounts for the honeycomb-like cordierite percentage by weight, and it is 0.5%, 0.91%, 0.88% that Pt, Sn, Na weight are respectively with respect to the percentage by weight of aluminum oxide coating layer.
Comparative Examples
Preparation among the embodiment 2 is purged the duct redundant sizing agent during integral catalyzer collect, 100 ℃ of dry 12h, then at 650 ℃ of roasting 1h, grind into powder, compressing tablet, sieve (20 orders～40 orders) are 30 ℃ of medium volume platinum-impregnated of water-bath.100 ℃ of dry 12h, roasting 4h in 500 ℃ of air then, dechlorination 4h in 500 ℃ of air+steam obtains pellet type catalyst again.Wherein Pt, Sn, Na weight are respectively 0.5%, 0.91%, 0.88% with respect to the percentage by weight of aluminum oxide coating layer.
The reaction example
With the beaded catalyst for preparing in the integral catalyzer of preparation among embodiment 1 and the embodiment 2 and the Comparative Examples through H
2Be used for the test of dehydrogenating propane reactivity worth after the prereduction.Reaction temperature is 570 ℃, and mixture pressure is 0.1MPa, mist mass space velocity 7.1h
-1, hydrogen/propane mol ratio is 1: 3.The composition of propane and product obtains with gas chromatographic analysis.Experimental result is listed in the table below in 1.
From the experimental result of table 1 as seen, the integral catalyzer of embodiment 1 gained (only contain Pt and do not contain auxiliary agent) has good propylene selectivity.And compare with the beaded catalyst in the Comparative Examples, the integral catalyzer of gained good stability in the preparing propylene by dehydrogenating propane reaction among the embodiment 2, propylene selectivity height, and behind dehydrogenating propane reaction 12h, conversion of propane is 11.9%, and the propylene selectivity still remains 98.0%.
Table 1
Above content be in conjunction with concrete preferred implementation to further describing that the present invention did, can not assert that concrete enforcement of the present invention is confined to these explanations.For the those skilled in the art of the technical field of the invention, without departing from the inventive concept of the premise, can also make some simple deduction or replace, all should be considered as belonging to protection scope of the present invention.
Claims (9)
1. preparation method who is used for the integral catalyzer of dehydrogenating propane, it is characterized in that: this method may further comprise the steps:
A) be (30～70) with weight ratio: (5～30): 100 aluminium oxide, aluminum nitrate and deionized water mixing and ball milling are made slurry;
B) described slurry is coated on surface, matrix duct with parallel duct; Purge described matrix duct with compressed air;
C) dry, the described matrix of roasting makes its surface, duct form aluminum oxide coating layer, and the weight ratio of described aluminum oxide coating layer and described matrix is 0.15%～20%;
D) the described matrix with the described aluminum oxide coating layer of surface, duct formation impregnated in the solution that contains metal active constituent, in weight metal, the weight ratio of described metal active constituent and described aluminum oxide coating layer is 0.01%～1.1%, and dipping back drying, roasting obtain described integral catalyzer.
2. preparation method according to claim 1 is characterized in that: described matrix is selected from cordierite, mullite, diamond, corundum or quartz.
3. preparation method according to claim 2 is characterized in that: described matrix is a cordierite.
4. preparation method according to claim 1 is characterized in that: described metal active constituent is selected from VIII family metal.
5. preparation method according to claim 4 is characterized in that: described metal active constituent is Pt.
6. preparation method according to claim 5 is characterized in that: the weight ratio of described aluminum oxide coating layer and described matrix is 1%～15%; In weight metal, the weight ratio of described metal active constituent and described aluminum oxide coating layer is 0.3%～0.7%.
7. according to each described preparation method in the claim 1 to 6, it is characterized in that: in step a), add auxiliary agent and alkaline assistant, with weight ratio is (30～70): (5～30): (0.01～7.5): (0.01～5.5): 100 aluminium oxide, aluminum nitrate, auxiliary agent, alkaline assistant and deionized water mixing and ball milling are made slurry, described auxiliary agent is selected from one or more in the IVA family metal soluble salt, and described alkaline assistant is selected from one or more in the soluble-salt of alkali metal, alkaline-earth metal.
8. preparation method according to claim 7 is characterized in that: described auxiliary agent is the soluble-salt of Sn, and described alkaline assistant is the soluble-salt of Na.
9. preparation method according to claim 8 is characterized in that: the weight ratio of aluminium oxide, aluminum nitrate, described auxiliary agent, described alkaline assistant and deionized water is (30～70): (5～30): (0.01～4.5): (0.01～2.5): 100.
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| CN2010101442824A CN102211022A (en) | 2010-04-12 | 2010-04-12 | Method for preparing integral catalyst used in dehydration of propane to prepare propylene |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106607100A (en) * | 2015-10-22 | 2017-05-03 | 中国石油化工股份有限公司 | Carrier of catalyst for light alkane dehydrogenation preparation of light olefin and use thereof |
| CN110508317A (en) * | 2019-08-23 | 2019-11-29 | 上海绿强新材料有限公司 | A kind of integral catalyzer preparation method of manufacturing olefin by low-carbon alkane dehydrogenation |
| CN112827432A (en) * | 2021-01-06 | 2021-05-25 | 清华大学 | Sulfuric acid decomposition tube with non-uniformly distributed catalyst bed added with reflux multi-tube and threaded outer wall surface |
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2010
- 2010-04-12 CN CN2010101442824A patent/CN102211022A/en active Pending
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|---|---|---|---|---|
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106607100A (en) * | 2015-10-22 | 2017-05-03 | 中国石油化工股份有限公司 | Carrier of catalyst for light alkane dehydrogenation preparation of light olefin and use thereof |
| CN106607100B (en) * | 2015-10-22 | 2019-04-12 | 中国石油化工股份有限公司 | Dehydrogenating low-carbon alkane producing light olefins catalyst carrier and application thereof |
| CN110508317A (en) * | 2019-08-23 | 2019-11-29 | 上海绿强新材料有限公司 | A kind of integral catalyzer preparation method of manufacturing olefin by low-carbon alkane dehydrogenation |
| CN112827432A (en) * | 2021-01-06 | 2021-05-25 | 清华大学 | Sulfuric acid decomposition tube with non-uniformly distributed catalyst bed added with reflux multi-tube and threaded outer wall surface |
| CN112827432B (en) * | 2021-01-06 | 2021-12-10 | 清华大学 | Sulfuric acid decomposition tube with non-uniformly distributed catalyst bed added with reflux multi-tube and threaded outer wall surface |
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