CN108465480A - Special appearance mordenite catalyst and preparation method thereof - Google Patents
Special appearance mordenite catalyst and preparation method thereof Download PDFInfo
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- CN108465480A CN108465480A CN201710099366.2A CN201710099366A CN108465480A CN 108465480 A CN108465480 A CN 108465480A CN 201710099366 A CN201710099366 A CN 201710099366A CN 108465480 A CN108465480 A CN 108465480A
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- Prior art keywords
- catalyst
- reaction
- elements
- modenite
- iib
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- 239000003054 catalyst Substances 0.000 title claims abstract description 101
- 229910052680 mordenite Inorganic materials 0.000 title claims abstract description 13
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- 238000006243 chemical reaction Methods 0.000 claims abstract description 81
- 229910052751 metal Inorganic materials 0.000 claims abstract description 32
- 238000010555 transalkylation reaction Methods 0.000 claims abstract description 17
- 150000004945 aromatic hydrocarbons Chemical class 0.000 claims abstract description 16
- 239000002994 raw material Substances 0.000 claims description 21
- 239000002184 metal Substances 0.000 claims description 19
- 238000001035 drying Methods 0.000 claims description 18
- 239000012018 catalyst precursor Substances 0.000 claims description 17
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 15
- 239000013078 crystal Substances 0.000 claims description 11
- FYGHSUNMUKGBRK-UHFFFAOYSA-N 1,2,3-trimethylbenzene Chemical compound CC1=CC=CC(C)=C1C FYGHSUNMUKGBRK-UHFFFAOYSA-N 0.000 claims description 8
- 229930195733 hydrocarbon Natural products 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 8
- 150000002430 hydrocarbons Chemical class 0.000 claims description 7
- 239000004215 Carbon black (E152) Substances 0.000 claims description 6
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 6
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 6
- 229910052804 chromium Inorganic materials 0.000 claims description 6
- 239000011651 chromium Substances 0.000 claims description 6
- 150000001875 compounds Chemical class 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 229910052750 molybdenum Inorganic materials 0.000 claims description 6
- 239000011733 molybdenum Substances 0.000 claims description 6
- 229910052701 rubidium Inorganic materials 0.000 claims description 6
- IGLNJRXAVVLDKE-UHFFFAOYSA-N rubidium atom Chemical compound [Rb] IGLNJRXAVVLDKE-UHFFFAOYSA-N 0.000 claims description 6
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 4
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 4
- 229910052793 cadmium Inorganic materials 0.000 claims description 4
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 claims description 4
- 229910052700 potassium Inorganic materials 0.000 claims description 4
- 239000011591 potassium Substances 0.000 claims description 4
- 238000001338 self-assembly Methods 0.000 claims description 4
- 229910052725 zinc Inorganic materials 0.000 claims description 4
- 239000011701 zinc Substances 0.000 claims description 4
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 239000011734 sodium Substances 0.000 claims description 3
- 229910052708 sodium Inorganic materials 0.000 claims description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 2
- 229910052792 caesium Inorganic materials 0.000 claims description 2
- TVFDJXOCXUVLDH-UHFFFAOYSA-N caesium atom Chemical compound [Cs] TVFDJXOCXUVLDH-UHFFFAOYSA-N 0.000 claims description 2
- 229910052744 lithium Inorganic materials 0.000 claims description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 2
- 229910052721 tungsten Inorganic materials 0.000 claims description 2
- 239000010937 tungsten Substances 0.000 claims description 2
- 239000002243 precursor Substances 0.000 claims 1
- 238000009776 industrial production Methods 0.000 abstract description 3
- 239000002808 molecular sieve Substances 0.000 abstract description 3
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 abstract description 3
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 18
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 18
- 229910052739 hydrogen Inorganic materials 0.000 description 18
- 239000001257 hydrogen Substances 0.000 description 18
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 17
- 230000001276 controlling effect Effects 0.000 description 16
- 238000000465 moulding Methods 0.000 description 16
- 238000005453 pelletization Methods 0.000 description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 16
- 239000008367 deionised water Substances 0.000 description 15
- 229910021641 deionized water Inorganic materials 0.000 description 15
- 239000000843 powder Substances 0.000 description 13
- ONDPHDOFVYQSGI-UHFFFAOYSA-N zinc nitrate Chemical compound [Zn+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O ONDPHDOFVYQSGI-UHFFFAOYSA-N 0.000 description 12
- APUPEJJSWDHEBO-UHFFFAOYSA-P ammonium molybdate Chemical compound [NH4+].[NH4+].[O-][Mo]([O-])(=O)=O APUPEJJSWDHEBO-UHFFFAOYSA-P 0.000 description 11
- 239000011609 ammonium molybdate Substances 0.000 description 11
- 235000018660 ammonium molybdate Nutrition 0.000 description 11
- 229940010552 ammonium molybdate Drugs 0.000 description 11
- 239000000047 product Substances 0.000 description 11
- 230000000694 effects Effects 0.000 description 10
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 10
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 description 8
- 229910021555 Chromium Chloride Inorganic materials 0.000 description 7
- QSWDMMVNRMROPK-UHFFFAOYSA-K chromium(3+) trichloride Chemical compound [Cl-].[Cl-].[Cl-].[Cr+3] QSWDMMVNRMROPK-UHFFFAOYSA-K 0.000 description 7
- 230000003197 catalytic effect Effects 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 238000003825 pressing Methods 0.000 description 6
- XIEPJMXMMWZAAV-UHFFFAOYSA-N cadmium nitrate Inorganic materials [Cd+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O XIEPJMXMMWZAAV-UHFFFAOYSA-N 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
- NMHMNPHRMNGLLB-UHFFFAOYSA-N phloretic acid Chemical compound OC(=O)CCC1=CC=C(O)C=C1 NMHMNPHRMNGLLB-UHFFFAOYSA-N 0.000 description 5
- 235000010333 potassium nitrate Nutrition 0.000 description 5
- 239000004323 potassium nitrate Substances 0.000 description 5
- 230000009257 reactivity Effects 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- NLSCHDZTHVNDCP-UHFFFAOYSA-N caesium nitrate Chemical compound [Cs+].[O-][N+]([O-])=O NLSCHDZTHVNDCP-UHFFFAOYSA-N 0.000 description 4
- 238000009792 diffusion process Methods 0.000 description 4
- 238000011156 evaluation Methods 0.000 description 4
- KWGKDLIKAYFUFQ-UHFFFAOYSA-M lithium chloride Chemical group [Li+].[Cl-] KWGKDLIKAYFUFQ-UHFFFAOYSA-M 0.000 description 4
- 230000001404 mediated effect Effects 0.000 description 4
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 4
- RTHYXYOJKHGZJT-UHFFFAOYSA-N rubidium nitrate Inorganic materials [Rb+].[O-][N+]([O-])=O RTHYXYOJKHGZJT-UHFFFAOYSA-N 0.000 description 4
- KHAUBYTYGDOYRU-IRXASZMISA-N trospectomycin Chemical compound CN[C@H]([C@H]1O2)[C@@H](O)[C@@H](NC)[C@H](O)[C@H]1O[C@H]1[C@]2(O)C(=O)C[C@@H](CCCC)O1 KHAUBYTYGDOYRU-IRXASZMISA-N 0.000 description 4
- 239000011592 zinc chloride Substances 0.000 description 4
- 235000005074 zinc chloride Nutrition 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 229910021536 Zeolite Inorganic materials 0.000 description 2
- DCGQUTJLMIWWSV-UHFFFAOYSA-N [W].[N+](=O)(O)[O-] Chemical compound [W].[N+](=O)(O)[O-] DCGQUTJLMIWWSV-UHFFFAOYSA-N 0.000 description 2
- 125000000217 alkyl group Chemical group 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- QCUOBSQYDGUHHT-UHFFFAOYSA-L cadmium sulfate Chemical compound [Cd+2].[O-]S([O-])(=O)=O QCUOBSQYDGUHHT-UHFFFAOYSA-L 0.000 description 2
- 229910000331 cadmium sulfate Inorganic materials 0.000 description 2
- 238000006555 catalytic reaction Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- PHFQLYPOURZARY-UHFFFAOYSA-N chromium trinitrate Chemical group [Cr+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O PHFQLYPOURZARY-UHFFFAOYSA-N 0.000 description 2
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 2
- -1 disproportionation Chemical class 0.000 description 2
- 238000007323 disproportionation reaction Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000006317 isomerization reaction Methods 0.000 description 2
- 229910000027 potassium carbonate Inorganic materials 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000007086 side reaction Methods 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 description 2
- 239000008096 xylene Substances 0.000 description 2
- 239000010457 zeolite Substances 0.000 description 2
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 description 2
- 229910000368 zinc sulfate Inorganic materials 0.000 description 2
- 229960001763 zinc sulfate Drugs 0.000 description 2
- QNRATNLHPGXHMA-XZHTYLCXSA-N (r)-(6-ethoxyquinolin-4-yl)-[(2s,4s,5r)-5-ethyl-1-azabicyclo[2.2.2]octan-2-yl]methanol;hydrochloride Chemical compound Cl.C([C@H]([C@H](C1)CC)C2)CN1[C@@H]2[C@H](O)C1=CC=NC2=CC=C(OCC)C=C21 QNRATNLHPGXHMA-XZHTYLCXSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000005804 alkylation reaction Methods 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000004523 catalytic cracking Methods 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000005660 chlorination reaction Methods 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000002242 deionisation method Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000009992 mercerising Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 239000002159 nanocrystal Substances 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 235000010344 sodium nitrate Nutrition 0.000 description 1
- 239000004317 sodium nitrate Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J29/00—Catalysts comprising molecular sieves
- B01J29/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
- B01J29/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
- B01J29/18—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the mordenite type
- B01J29/26—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the mordenite type containing arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J29/00—Catalysts comprising molecular sieves
- B01J29/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
- B01J29/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
- B01J29/18—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the mordenite type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J29/00—Catalysts comprising molecular sieves
- B01J29/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
- B01J29/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
- B01J29/18—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the mordenite type
- B01J29/185—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the mordenite type containing rare earth elements, titanium, zirconium, hafnium, zinc, cadmium, mercury, gallium, indium, thallium, tin or lead
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/60—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
- B01J35/61—Surface area
- B01J35/615—100-500 m2/g
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C6/00—Preparation of hydrocarbons from hydrocarbons containing a different number of carbon atoms by redistribution reactions
- C07C6/08—Preparation of hydrocarbons from hydrocarbons containing a different number of carbon atoms by redistribution reactions by conversion at a saturated carbon-to-carbon bond
- C07C6/12—Preparation of hydrocarbons from hydrocarbons containing a different number of carbon atoms by redistribution reactions by conversion at a saturated carbon-to-carbon bond of exclusively hydrocarbons containing a six-membered aromatic ring
- C07C6/126—Preparation of hydrocarbons from hydrocarbons containing a different number of carbon atoms by redistribution reactions by conversion at a saturated carbon-to-carbon bond of exclusively hydrocarbons containing a six-membered aromatic ring of more than one hydrocarbon
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2229/00—Aspects of molecular sieve catalysts not covered by B01J29/00
- B01J2229/10—After treatment, characterised by the effect to be obtained
- B01J2229/18—After treatment, characterised by the effect to be obtained to introduce other elements into or onto the molecular sieve itself
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Crystallography & Structural Chemistry (AREA)
- Catalysts (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The present invention relates to a kind of special appearance mordenite catalysts and preparation method thereof, while chain pattern promotes molecular sieve catalyst efficient mass transfer performance, mainly solve the problems, such as that catalyst is active low with selectivity in transalkylation, the catalyst uses chain pattern modenite for carrier, active component includes, it is at least one selected from VIB elements, selected from IIB elements are at least one and technical solution selected from least one of IA metallic elements, preferably resolve the technical problem, it can be used in the industrial production of the aromatic hydrocarbons such as transalkylation conversion.
Description
Technical field
The present invention relates to a kind of special appearance mordenite catalysts and preparation method thereof, and are shifted applied to accordance
Reaction.
Background technology
One of zeolite earliest as human knowledge, modenite have special acid distribution and regular mass transfer duct,
There is important industrial application value in adsorbing separation, catalytic cracking, the disproportionation petrochemical industries such as transalkylation and isomerization.Silk
The two-dimensional channel system of geolyte, in the reaction of the macromoleculars such as aromatic hydrocarbons, catalytic action generally only occurs in twelve-ring
Oval straight tube main aperture road, and the octatomic ring duct mutually linked up with main aperture road, general molecule are reduced into not going, therefore for reaction
Diffusion limitation, it is main Research Thinking to inhibit fast-growth of the modenite crystal on c-axis direction.Modenite is along 12MR
There is stronger growth potential energy, the modenite for being usually readily available two-dimentional scale to receive in (twelve-ring duct, i.e. c-axis) direction
Rice rhabdolith, forms needle-shaped or fibrous, and aggregate is radial, pencil, threadiness etc..Modenite is generally difficult to effectively
Inhibit crystal to be made of the preferred growth of chain structure five-membered ring along c-axis, is also easy to along the two-dimensional channel for being parallel to c-axis and b axis
Oriented growth is at rhombic sheet modenite.In the research of three dimension scale high-crystallinity nano mordenite crystal,
The growth in the directions ab can be relatively easy to be controlled, and directly affect the mass-transfer performance of catalyst.The ten of piece shape modenite
Lack interlinking between two membered ring channels, the serious mass transfer rate reduced in catalytic reaction process is unfavorable for catalytic activity
Preferably play.Effective Regulation modenite crystal is self-assembled into orderly self-supporting material, explores, research nano mordenite
The aggregated forms of crystal are the key that solve to adsorb on catalyst in reaction process, spread bottleneck.CN103274458A passes through base
Orientation between this unit contacts synthesizing one-dimensional item chain titanium dioxide nano-crystal, the property such as specific surface area and order of material
It can be significantly enhanced.Chain pattern can be effectively improved the mass transfer diffusion of modenite, but the mercerising of sial composition
Zeolite is limited by surface acidity distribution, there is a problem of that active and selectivity is low in the specific reaction such as accordance transfer,
It is generally necessary to be regulated and controled by element modified mode.The special periodic table of elements position as residing for transition metal element is assigned
The excellent physical chemical property given generates special carrier effect and catalyst is made to have preferable co-catalysis effect to many reactions
Fruit introduces dispersion and the stability that other metals can also be further enhanced by synergistic effect.
The present invention relates to a kind of for the chain pattern mordenite catalyst of transalkylation and its preparation side
Method can be obviously improved the reactivity worth of catalyst, preferably solve by selecting IA, VIB and Group IIB element to be modified
The above problem.The technology and cost of the catalyst are controllable, have excellent reactivity worth in aromatic hydrocarbons conversion reaction, effectively inhibit
The generation of the aromatic hydrocarbons polymerization side reactions such as carbon deposit, consumption hydrogen side reaction is low, few using loss, has better stability, is suitable for
The reaction operating mode of high-speed, and it is high with low-temperature catalytic activity, and aromatic hydrocarbons treating capacity is big, excellent catalytic effect, product xylene concentration
The advantages that high, can be used in the industrial production of the aromatic hydrocarbons such as transalkylation conversion.
Invention content
The first technical problem to be solved by the present invention is that molecular sieve catalyst diffusion exists in the prior art in order to overcome
The problem of poor performance, a kind of carrier of the novel modenite with chain pattern as catalyst is provided, which exists
In the conversion of the aromatic hydrocarbons such as disproportionation, transalkylation and isomerization, there is efficient management of performance to aromatic ring pendant alkyl group, be suitable for high-altitude
The reaction operating mode and mass transfer demand of speed.It can occur to take off alkyl or transalkylation performance accordingly with high selectivity, there are benzene and two
The characteristics of toluene principal product high income and high selectivity.
The second technical problem to be solved by the present invention is to provide a kind of one of solution above-mentioned technical problem used catalyst
The corresponding preparation method of material solves the matching of every synthetic parameters in the catalytic effect and catalyst preparation process of molecular sieve
Problem.
The third technical problem to be solved by the present invention is to use above-mentioned catalyst, is applied to the virtue of accordance transfer
In hydrocarbon Transformation Application.
One of to solve above-mentioned technical problem, the technical solution adopted by the present invention is as follows：One kind is shifted for accordance
The chain pattern mordenite catalyst of reaction, the catalyst use chain pattern modenite for carrier, active component packet
It includes, selected from VIB elements at least one, selected from IIB elements at least one and selected from least one of IA metallic elements.
In above-mentioned technical proposal, the preferred active component is simultaneously including group vib element, Group IIB element and IA races member
At least one of element metallic element.
In above-mentioned technical proposal, the VIB elements are selected from least one of chromium, molybdenum, tungsten.Technical side more preferably
Case, the VIB elements are selected from least one of metallic element chromium, molybdenum.
In above-mentioned technical proposal, the Group IIB element preferably is selected from least one of zinc, cadmium.
In above-mentioned technical proposal, the IA metallic elements are selected from least one of lithium, sodium, potassium, rubidium, caesium.As more excellent
The technical solution of choosing, the IA elements are preferably at least one of Metal Elements K, rubidium.
In above-mentioned technical proposal, as most preferred technical solution, the active component is simultaneously including group vib element, IIB
Race's element and IA races element；For example, the active component includes chromium, zinc, rubidium, either including molybdenum, cadmium, potassium or including chromium,
Molybdenum, cadmium, rubidium, or including chromium, molybdenum, zinc, rubidium, potassium.
In above-mentioned technical proposal, the modifying element in the catalyst, in terms of catalyst total amount, the content of VIB elements is excellent
It is selected as 0.002~15%wt, more preferably 0.06~6%wt；In terms of catalyst total amount, the content of IIB elements is preferably 0.05
~12%wt, more preferably 0.5~10%wt；The two has collaboration in improving product in terms of the selectivity of dimethylbenzene and yield
Effect.
In above-mentioned technical proposal, in catalyst containing IA races metal in terms of catalyst total amount, content is 0.0001~5%
Wt, content are more preferably 0.0003~0.8%wt.
The carrier of the catalyst uses the modenite of chain pattern, and specific surface area is preferably 300~550m2/g。
For single piece shape crystal chain pattern, thickness of single piece shape crystal made of c-axis (piece shape thickness) orderly self assembly in direction
Between 8~380nm, chain is self-assembly of size by 3~120 piece shape crystal.
To solve above-mentioned technical problem two, the technical solution adopted by the present invention is as follows：One of above-mentioned technical problem technology
The preparation method of catalyst described in scheme, includes the following steps：
A) according to the compositing formula of catalyst, by the desired amount of compound for modified VIB, IIB and IA race metal
Presoma is mixed with chain pattern modenite carrier,
B it) mediates, be molded, obtain catalyst Precursors after drying,
C) parent in air atmosphere, roasts 1~20 hour at 330~630 DEG C, and cooling obtains required catalyst material.
In above-mentioned technical proposal, the compound of group vib element described in step A preferably is selected from chromic nitrate, chromium chloride, ammonium molybdate
At least one of with nitric acid tungsten.
In above-mentioned technical proposal, the compound of Group IIB element described in step A, preferably be selected from zinc nitrate, zinc sulfate, zinc chloride,
At least one of caddy, cadmium sulfate and cadmium nitrate.
In above-mentioned technical proposal, the compound of IA races metallic element, preferably is selected from lithium chloride, sodium nitrate, chlorination described in step A
At least one of sodium, potassium nitrate, potassium carbonate, rubidium nitrate and cesium nitrate.
To solve above-mentioned technical problem three, the technical solution adopted by the present invention is as follows：The transalkylation of aroamtic hydrocarbon raw material is anti-
It answers, using being reacted in the presence of catalyst in one of any above-mentioned technical problem technical solution.
The key of the present invention is the selection of catalyst, suitable skilled person will know how determining according to actual needs
Material proportion, reaction temperature, reaction pressure and reaction velocity.In above-mentioned technical proposal, transalkylation with mole
Than 45:The toluene and trimethylbenzene of 55 compositions are model charge, and preferable reaction temperature is 280~560 DEG C, and preferably reaction pressure is
1.2~5.5MPa, preferably reaction velocity are 0.05~12h-1。
Reaction product in above-mentioned technical proposal is analyzed using gas chromatograph-mass spectrometer (GC-MS) (GC-MASS), by following public affairs
Formula calculates the selectivity of the conversion ratio and principal product (benzene, dimethylbenzene) of aroamtic hydrocarbon raw material (toluene, trimethylbenzene)：
Molal quantity/charging molal quantity × 100% for conversion ratio (%)=react away
Molal quantity/reaction that benzene selective (%)=reaction generates benzene generates C6 hydro carbons molal quantity × 100%
Molal quantity/reaction that dimethylbenzene selective (%)=reaction generates dimethylbenzene generates C8 hydro carbons molal quantity × 100%
Compared with prior art, innovation point of the invention is, by using a kind of novel chain pattern
Active main body of the modenite as catalyst, the microcosmic self-supporting nano material can be obviously improved the reactivity worth of catalyst,
Catalyst diffusion duct is more unobstructed, and microporous mesoporous compound pore passage structure is more orderly regular, has in aromatic hydrocarbons conversion reaction
Excellent reactivity worth is suitable for the reaction operating mode of high-speed compared to conventional mordenite catalyst, and aromatic hydrocarbons treating capacity is big, and
Has many advantages, such as excellent catalytic effect, product xylene concentration is high, can be used in the industrial production of aromatic hydrocarbons conversion.Meanwhile catalyst
Active component include it is a certain amount of selected from group vib element, selected from Group IIB element and at least one of selected from IA races element
Metallic element is conducive to the activity and stability that improve catalyst, to improve principal product benzene in transalkylation
With the yield and selectivity of dimethylbenzene.The catalyst preparation, it is easy to operate, it is with obvious effects, it is allocated, is being obviously improved by forming
While performance, production cost is greatly saved.
The experimental results showed that the catalyst prepared by the present invention achieves in preferable technique effect, especially catalyst
Active component is simultaneously including being selected from group vib element, selected from Group IIB element and selected from least one of IA races element metallic element
When, technique effect more outstanding is achieved, can be used in the aromatic hydrocarbons conversion reactions such as accordance transfer.
Below by embodiment, the present invention is further elaborated.
Specific implementation mode
【Embodiment 1】
By chain pattern modenite (being denoted as LM, silica alumina ratio 25), weigh 60 grams, addition deionized water mediate uniformly,
Catalyst Precursors are obtained after extruded moulding, drying, parent roasts 3 hours for 595 DEG C in air atmosphere, and pelletizing obtains catalyst.
With above-mentioned catalyst, evaluating catalyst, reactor rule are carried out on the continuous micro-reaction equipment of fixed bed for facing hydrogen
Lattice are20.0 grams of loadings, transalkylation is with molar ratio 45:The toluene and trimethylbenzene of 55 compositions
For model charge, hydrogen hydrocarbon molar ratio H2/ HC=2.7 (following embodiments and comparative example, evaluated according to the above situation).First
The air of reaction system is discharged with hydrogen and is pressurized to 2.0MPa, the charging reaction velocity for controlling above-mentioned raw materials is 2.0h-1, raw material
Respectively by being contacted with the bed containing above-mentioned catalyst, it is heated to reaction temperature, controlling reaction temperature is 390 DEG C, is continued
After stablizing reaction 20 hours, the reaction mass of catalyst bed outlet is through cooling, decompression, separation, the liquid obtained by sampling analysis
Mixture, liquid phase material are analyzed using gas chromatograph-mass spectrometer (GC-MS) (GC-MASS).
【Comparative example 1】
Laboratory simultaneously with conventional fusiformis micron order modenite (be denoted as NM, silica alumina ratio is consistent with LM, is all 25) sample,
60 grams are weighed, addition deionized water obtains catalyst Precursors after mediating uniform, extruded moulding, drying, and parent is in air atmosphere 595
DEG C roasting 3 hours, pelletizing obtains catalyst.
The catalyst made from above-described embodiment, evaluation, sampling analysis under the working condition consistent with embodiment 1.
【Embodiment 2】
60 grams of LM dry powder are weighed, chromic nitrate (amount of metal for pressing 2.8%wt) is added, addition deionized water is mediated uniform, crowded
Catalyst Precursors are obtained after item molding, drying, parent roasts 3 hours for 595 DEG C in air atmosphere, and pelletizing obtains catalyst.
The catalyst made from above-described embodiment, with reference to embodiment 1 working condition under, first with hydrogen be discharged reaction system
Air and be pressurized to 2.5MPa, control above-mentioned raw materials charging reaction velocity be 2.5h-1, controlling reaction temperature is 398 DEG C.
【Embodiment 3】
60 grams of LM dry powder are weighed, ammonium molybdate (amount of metal for pressing 2.8%wt) is added, addition deionized water is mediated uniform, crowded
Catalyst Precursors are obtained after item molding, drying, parent roasts 3 hours for 595 DEG C in air atmosphere, and pelletizing obtains catalyst.
The catalyst made from above-described embodiment, with reference to embodiment 1 working condition under, first with hydrogen be discharged reaction system
Air and be pressurized to 2.5MPa, control above-mentioned raw materials charging reaction velocity be 2.5h-1, controlling reaction temperature is 398 DEG C.
【Embodiment 4】
60 grams of LM dry powder are weighed, nitric acid tungsten (amount of metal for pressing 2.8%wt) is added, addition deionized water is mediated uniform, crowded
Catalyst Precursors are obtained after item molding, drying, parent roasts 3 hours for 595 DEG C in air atmosphere, and pelletizing obtains catalyst.
The catalyst made from above-described embodiment, with reference to embodiment 1 working condition under, first with hydrogen be discharged reaction system
Air and be pressurized to 2.5 MPa, control above-mentioned raw materials charging reaction velocity be 2.5 h-1, controlling reaction temperature is 398 DEG C.
【Embodiment 5】
60 grams of LM dry powder are weighed, chromium chloride and zinc sulfate (amount of metal for pressing 1.8%wt and 6%wt respectively), addition is added
Deionized water obtains catalyst Precursors after mediating uniform, extruded moulding, drying, and parent is small in 550 DEG C of roastings 3.5 of air atmosphere
When, pelletizing obtains catalyst.
The catalyst made from above-described embodiment, with reference to embodiment 1 working condition under, first with hydrogen be discharged reaction system
Air and be pressurized to 2.8 MPa, control above-mentioned raw materials charging reaction velocity be 3.0 h-1, controlling reaction temperature is 398 DEG C.
【Embodiment 6】
60 grams of LM dry powder are weighed, chromium chloride and cadmium sulfate (amount of metal for pressing 1.8%wt and 6%wt respectively), addition is added
Deionized water obtains catalyst Precursors after mediating uniform, extruded moulding, drying, and parent is small in 550 DEG C of roastings 3.5 of air atmosphere
When, pelletizing obtains catalyst.
The catalyst made from above-described embodiment, with reference to embodiment 1 working condition under, first with hydrogen be discharged reaction system
Air and be pressurized to 2.8 MPa, control above-mentioned raw materials charging reaction velocity be 3.0 h-1, controlling reaction temperature is 398 DEG C.
【Embodiment 7】
60 grams of LM dry powder are weighed, ammonium molybdate, zinc nitrate and lithium chloride is added and (presses 2.1%wt, 6%wt and 0.005% respectively
The amount of metal of wt), addition deionized water obtains catalyst Precursors after mediating uniform, extruded moulding, drying, and parent is in air atmosphere
498 DEG C roast 5 hours, and pelletizing obtains catalyst.
The catalyst made from above-described embodiment, with reference to embodiment 1 working condition under, first with hydrogen be discharged reaction system
Air and be pressurized to 2.8 MPa, control above-mentioned raw materials charging reaction velocity be 3.0 h-1, controlling reaction temperature is 398 DEG C.
【Embodiment 8】
60 grams of LM dry powder are weighed, ammonium molybdate, zinc nitrate and sodium chloride is added and (presses 2.1%wt, 6%wt and 0.005% respectively
The amount of metal of wt), addition deionized water obtains catalyst Precursors after mediating uniform, extruded moulding, drying, and parent is in air atmosphere
498 DEG C roast 5 hours, and pelletizing obtains catalyst.
The catalyst made from above-described embodiment, with reference to embodiment 1 working condition under, first with hydrogen be discharged reaction system
Air and be pressurized to 2.8 MPa, control above-mentioned raw materials charging reaction velocity be 3.0 h-1, controlling reaction temperature is 398 DEG C.
【Embodiment 9】
60 grams of LM dry powder are weighed, ammonium molybdate, zinc nitrate and potassium carbonate is added and (presses 2.1%wt, 6%wt and 0.005% respectively
The amount of metal of wt), addition deionized water obtains catalyst Precursors after mediating uniform, extruded moulding, drying, and parent is in air atmosphere
498 DEG C roast 5 hours, and pelletizing obtains catalyst.
The catalyst made from above-described embodiment, with reference to embodiment 1 working condition under, first with hydrogen be discharged reaction system
Air and be pressurized to 2.8MPa, control above-mentioned raw materials charging reaction velocity be 3.0h-1, controlling reaction temperature is 398 DEG C.
【Embodiment 10】
60 grams of LM dry powder are weighed, ammonium molybdate, zinc nitrate and rubidium nitrate is added and (presses 2.1%wt, 6%wt and 0.005% respectively
The amount of metal of wt), addition deionized water obtains catalyst Precursors after mediating uniform, extruded moulding, drying, and parent is in air atmosphere
498 DEG C roast 5 hours, and pelletizing obtains catalyst.
The catalyst made from above-described embodiment, with reference to embodiment 1 working condition under, first with hydrogen be discharged reaction system
Air and be pressurized to 2.8MPa, control above-mentioned raw materials charging reaction velocity be 3.0h-1, controlling reaction temperature is 398 DEG C.
【Embodiment 11】
60 grams of LM dry powder are weighed, ammonium molybdate, zinc nitrate and cesium nitrate is added and (presses 2.1%wt, 6%wt and 0.005% respectively
The amount of metal of wt), addition deionized water obtains catalyst Precursors after mediating uniform, extruded moulding, drying, and parent is in air atmosphere
498 DEG C roast 5 hours, and pelletizing obtains catalyst.
The catalyst made from above-described embodiment, with reference to embodiment 1 working condition under, first with hydrogen be discharged reaction system
Air and be pressurized to 2.8MPa, control above-mentioned raw materials charging reaction velocity be 3.0h-1, controlling reaction temperature is 398 DEG C.
【Embodiment 12】
60 grams of LM dry powder are weighed, chromium chloride, ammonium molybdate, cadmium nitrate and potassium nitrate is added and (presses 1.2%wt, 0.9% respectively
The amount of metal of wt, 5.4%wt and 0.02%wt), addition deionized water obtains catalyst after mediating uniform, extruded moulding, drying
Parent, parent roast 4 hours for 520 DEG C in air atmosphere, and pelletizing obtains catalyst.
The catalyst made from above-described embodiment, with reference to embodiment 1 working condition under, first with hydrogen be discharged reaction system
Air and be pressurized to 2.5MPa, control above-mentioned raw materials charging reaction velocity be 3.3h-1, controlling reaction temperature is 375 DEG C.
【Embodiment 13】
Weigh 60 grams of LM dry powder, be added chromium chloride, ammonium molybdate, zinc chloride, cadmium nitrate and potassium nitrate (press respectively 1.2%wt,
The amount of metal of 0.9%wt, 3%wt, 2.4%wt and 0.02%wt), after addition deionized water mediates uniform, extruded moulding, drying
Catalyst Precursors are obtained, parent roasts 4 hours for 520 DEG C in air atmosphere, and pelletizing obtains catalyst.
The catalyst made from above-described embodiment, with reference to embodiment 1 working condition under, first with hydrogen be discharged reaction system
Air and be pressurized to 2.5MPa, control above-mentioned raw materials charging reaction velocity be 3.3h-1, controlling reaction temperature is 375 DEG C.
【Embodiment 14】
60 grams of LM dry powder are weighed, chromium chloride, ammonium molybdate, zinc chloride, cadmium nitrate, potassium nitrate and rubidium nitrate is added and (presses respectively
The amount of metal of 1.2%wt, 0.9%wt, 3%wt, 2.4%wt, 0.005%wt and 0.015%wt), addition deionized water is mediated
Uniformly, catalyst Precursors are obtained after extruded moulding, drying, parent roasts 4 hours for 520 DEG C in air atmosphere, and pelletizing is catalyzed
Agent.
The catalyst made from above-described embodiment, with reference to embodiment 1 working condition under, first with hydrogen be discharged reaction system
Air and be pressurized to 2.5MPa, control above-mentioned raw materials charging reaction velocity be 3.3h-1, controlling reaction temperature is 375 DEG C.
【Comparative example 2】
With 60 grams of NM samples, chromium chloride, ammonium molybdate, zinc chloride, cadmium nitrate, potassium nitrate and rubidium nitrate is added simultaneously in laboratory
(amount of metal for pressing 1.2%wt, 0.9%wt, 3%wt, 2.4%wt, 0.005%wt and 0.015%wt respectively), adds deionization
Water obtains catalyst Precursors after mediating uniform, extruded moulding, drying, and parent roasts 4 hours for 520 DEG C in air atmosphere, and pelletizing obtains
To catalyst.
The catalyst made from above-described embodiment, with reference to embodiment 1 working condition under, first with hydrogen be discharged reaction system
Air and be pressurized to 2.5MPa, control above-mentioned raw materials charging reaction velocity be 3.3h-1, controlling reaction temperature is 375 DEG C.
The yield and selective data of principal product is obtained by calculation, for the ease of saying in the above embodiments and comparative example
It is bright and compare, the preparation of catalyst and its evaluation data in aromatic hydrocarbons conversion reaction are listed in Tables 1 and 2 respectively.
Table 1
Table 2
According to raw material composition and product composition, the reactivity worth of catalyst, the specific evaluation result of catalyst such as 2 institute of table are calculated
Show：Appraisal result shows, the chain pattern mordenite catalyst prepared using the present invention, have in aromatic hydrocarbons conversion reaction compared with
High transalkylation reaction activity can effectively facilitate the transalkylation reaction of aromatic hydrocarbons and have higher methyl conservation rate, product
Dimethylbenzene yield is obviously high；Chain pattern mordenite catalyst has preferable reaction stability simultaneously, and comparative example is catalyzed
There is different degrees of decline after 100 hours in every indicator reaction in agent, by temperature raising can not long-time stable performance,
Chain pattern is conducive to be promoted the transalkylation performance of catalyst, this is diffused with much relations with the mass transfer reacted.Contrast sample
Evaluation data result under similar reaction working condition is it is found that the active component of catalyst includes a certain amount of being selected from group vib
Element, selected from Group IIB element and selected from least one of IA races element metallic element, be conducive to the activity for improving catalyst and
Stability, to improve the yield and selectivity of principal product benzene and dimethylbenzene in transalkylation.The catalyst
In modifying element, VIB elements and IIB elements in terms of the selectivity of dimethylbenzene and yield there is collaboration to make in improving product
With.In catalyst active component include simultaneously selected from group vib element, selected from Group IIB element and in IA races element at least
When a kind of metallic element, technique effect more outstanding is achieved, can be used in the aromatic hydrocarbons conversion reactions such as accordance transfer.
Claims (10)
1. a kind of special appearance mordenite catalyst, for aromatic hydrocarbons conversion reactions such as accordance transfers, which is characterized in that institute
Stating catalyst uses chain pattern modenite for carrier, and active component includes, at least one selected from VIB elements, first selected from IIB
Element is at least one and selected from least one of IA metallic elements.
2. catalyst according to claim 1, it is characterised in that carrier uses the modenite of chain pattern, specific surface area
For 300~550m2/g；For single piece shape crystal chain pattern made of c-axis, that is, orderly self assembly of piece shape thickness direction, individually
Between 8~380nm, chain is self-assembly of the thickness of piece shape crystal by 3~120 piece shape crystal.
3. catalyst according to claim 1, which is characterized in that the VIB elements are selected from least one of chromium, molybdenum, tungsten.
4. catalyst according to claim 1, which is characterized in that the IIB elements are selected from least one of zinc, cadmium.
5. catalyst according to claim 1, which is characterized in that the IA metallic elements are in lithium, sodium, potassium, rubidium, caesium
It is at least one.
6. catalyst according to claim 1, which is characterized in that in catalyst, in terms of catalyst total amount, VIB elements contain
Amount is 0.002~15%wt, and the content of IIB elements is 0.05~12%wt.
7. catalyst according to claim 1, which is characterized in that IA races metal in the catalyst, with catalyst total amount
Meter, content are 0.0001~5%wt.
8. the preparation method of chain pattern mordenite catalyst according to claim 1, includes the following steps：
A) according to the compositing formula of catalyst, by the compounds precursors and chain for modified VIB, IIB and IA race metal
Pattern modenite carrier mixes,
B it) mediates, be molded, obtain catalyst Precursors after drying,
C) parent in air atmosphere, roasts 1~20 hour at 330~630 DEG C, and cooling obtains required catalyst material.
9. a kind of method of the transalkylation reaction of aroamtic hydrocarbon raw material, in the presence of any catalyst in claim 1~8
It is reacted.
10. the transalkylation reaction of aroamtic hydrocarbon raw material according to claim 9, it is characterized in that using toluene, trimethylbenzene as model original
Material, reaction temperature are 280~560 DEG C, and reaction pressure is 1.2~5.5MPa, and reaction velocity is 0.05~12h-1。
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| CA903696A (en) * | 1972-06-27 | Texaco Development Corporation | Catalytic dewaxing | |
| CN1174184A (en) * | 1996-08-20 | 1998-02-25 | 中国石油化工总公司 | Methylbenzene disproportionating and alkyl group transfering process |
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