CN105833900A - Isomerization catalyst and preparation method thereof - Google Patents
Isomerization catalyst and preparation method thereof Download PDFInfo
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- CN105833900A CN105833900A CN201610206851.0A CN201610206851A CN105833900A CN 105833900 A CN105833900 A CN 105833900A CN 201610206851 A CN201610206851 A CN 201610206851A CN 105833900 A CN105833900 A CN 105833900A
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- oxide
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- isomerization catalyst
- molecular sieve
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- 239000003054 catalyst Substances 0.000 title claims abstract description 53
- 238000006317 isomerization reaction Methods 0.000 title claims abstract description 31
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 33
- 239000002808 molecular sieve Substances 0.000 claims abstract description 26
- 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 26
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 23
- GNTDGMZSJNCJKK-UHFFFAOYSA-N divanadium pentaoxide Chemical compound O=[V](=O)O[V](=O)=O GNTDGMZSJNCJKK-UHFFFAOYSA-N 0.000 claims abstract description 22
- AMWRITDGCCNYAT-UHFFFAOYSA-L hydroxy(oxo)manganese;manganese Chemical compound [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 claims abstract description 22
- ZNOKGRXACCSDPY-UHFFFAOYSA-N tungsten trioxide Chemical compound O=[W](=O)=O ZNOKGRXACCSDPY-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000011230 binding agent Substances 0.000 claims abstract description 16
- 229910001404 rare earth metal oxide Inorganic materials 0.000 claims abstract description 16
- 229910000287 alkaline earth metal oxide Inorganic materials 0.000 claims abstract description 14
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 11
- ABTOQLMXBSRXSM-UHFFFAOYSA-N silicon tetrafluoride Chemical compound F[Si](F)(F)F ABTOQLMXBSRXSM-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000004408 titanium dioxide Substances 0.000 claims abstract description 11
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims abstract description 11
- XJDNKRIXUMDJCW-UHFFFAOYSA-J titanium tetrachloride Chemical compound Cl[Ti](Cl)(Cl)Cl XJDNKRIXUMDJCW-UHFFFAOYSA-J 0.000 claims abstract description 11
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical group [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 18
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 15
- 239000007864 aqueous solution Substances 0.000 claims description 15
- 229910017604 nitric acid Inorganic materials 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 10
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 10
- 239000011265 semifinished product Substances 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 9
- FDNAPBUWERUEDA-UHFFFAOYSA-N silicon tetrachloride Chemical compound Cl[Si](Cl)(Cl)Cl FDNAPBUWERUEDA-UHFFFAOYSA-N 0.000 claims description 8
- 229910021536 Zeolite Inorganic materials 0.000 claims description 6
- 230000004913 activation Effects 0.000 claims description 6
- 239000010457 zeolite Substances 0.000 claims description 6
- 239000012298 atmosphere Substances 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 5
- 239000000693 micelle Substances 0.000 claims description 5
- 238000000465 moulding Methods 0.000 claims description 5
- 230000003647 oxidation Effects 0.000 claims description 5
- 238000007254 oxidation reaction Methods 0.000 claims description 5
- 238000005245 sintering Methods 0.000 claims description 5
- 238000010792 warming Methods 0.000 claims description 5
- 239000002994 raw material Substances 0.000 claims description 4
- QVQLCTNNEUAWMS-UHFFFAOYSA-N barium oxide Inorganic materials [Ba]=O QVQLCTNNEUAWMS-UHFFFAOYSA-N 0.000 claims description 3
- CSSYLTMKCUORDA-UHFFFAOYSA-N barium(2+);oxygen(2-) Chemical compound [O-2].[Ba+2] CSSYLTMKCUORDA-UHFFFAOYSA-N 0.000 claims description 3
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical group [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims description 3
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 3
- 239000000292 calcium oxide Substances 0.000 claims description 3
- MMKQUGHLEMYQSG-UHFFFAOYSA-N oxygen(2-);praseodymium(3+) Chemical compound [O-2].[O-2].[O-2].[Pr+3].[Pr+3] MMKQUGHLEMYQSG-UHFFFAOYSA-N 0.000 claims description 3
- 229910003447 praseodymium oxide Inorganic materials 0.000 claims description 3
- 229910052684 Cerium Inorganic materials 0.000 claims description 2
- 229910003978 SiClx Inorganic materials 0.000 claims description 2
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 claims description 2
- 229910052746 lanthanum Inorganic materials 0.000 claims description 2
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 claims description 2
- 235000012239 silicon dioxide Nutrition 0.000 claims description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims 1
- 229910052749 magnesium Inorganic materials 0.000 claims 1
- 239000011777 magnesium Substances 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 abstract description 7
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 abstract 2
- VXEGSRKPIUDPQT-UHFFFAOYSA-N 4-[4-(4-methoxyphenyl)piperazin-1-yl]aniline Chemical compound C1=CC(OC)=CC=C1N1CCN(C=2C=CC(N)=CC=2)CC1 VXEGSRKPIUDPQT-UHFFFAOYSA-N 0.000 abstract 1
- 239000005049 silicon tetrachloride Substances 0.000 abstract 1
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 abstract 1
- 229910001887 tin oxide Inorganic materials 0.000 abstract 1
- YNQLUTRBYVCPMQ-UHFFFAOYSA-N Ethylbenzene Chemical compound CCC1=CC=CC=C1 YNQLUTRBYVCPMQ-UHFFFAOYSA-N 0.000 description 24
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 21
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 13
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 5
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- URLKBWYHVLBVBO-UHFFFAOYSA-N Para-Xylene Chemical group CC1=CC=C(C)C=C1 URLKBWYHVLBVBO-UHFFFAOYSA-N 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- MRELNEQAGSRDBK-UHFFFAOYSA-N lanthanum oxide Inorganic materials [O-2].[O-2].[O-2].[La+3].[La+3] MRELNEQAGSRDBK-UHFFFAOYSA-N 0.000 description 2
- 239000000395 magnesium oxide Substances 0.000 description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 2
- 239000008096 xylene Substances 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- GZWHKZMMMSLXNV-UHFFFAOYSA-N benzene;1,2-xylene Chemical compound C1=CC=CC=C1.CC1=CC=CC=C1C GZWHKZMMMSLXNV-UHFFFAOYSA-N 0.000 description 1
- 229910000420 cerium oxide Inorganic materials 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 238000007323 disproportionation reaction Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000003317 industrial substance Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- QGLKJKCYBOYXKC-UHFFFAOYSA-N nonaoxidotritungsten Chemical compound O=[W]1(=O)O[W](=O)(=O)O[W](=O)(=O)O1 QGLKJKCYBOYXKC-UHFFFAOYSA-N 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 229910001930 tungsten oxide 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
- B01J29/80—Mixtures of different zeolites
-
- 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
- B01J29/005—Mixtures of molecular sieves comprising at least one molecular sieve which is not an aluminosilicate zeolite, e.g. from groups B01J29/03 - B01J29/049 or B01J29/82 - B01J29/89
-
- 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
-
- 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
- B01J35/64—Pore diameter
- B01J35/647—2-50 nm
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C5/00—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms
- C07C5/22—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by isomerisation
- C07C5/27—Rearrangement of carbon atoms in the hydrocarbon skeleton
- C07C5/2767—Changing the number of side-chains
- C07C5/277—Catalytic processes
- C07C5/2775—Catalytic processes with crystalline alumino-silicates, e.g. molecular sieves
-
- 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
- B01J2229/20—After treatment, characterised by the effect to be obtained to introduce other elements in the catalyst composition comprising the molecular sieve, but not specially in or on the molecular sieve itself
-
- 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
- B01J2229/30—After treatment, characterised by the means used
- B01J2229/40—Special temperature treatment, i.e. other than just for template removal
-
- 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
- B01J29/40—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the pentasil type, e.g. types ZSM-5, ZSM-8 or ZSM-11, as exemplified by patent documents US3702886, GB1334243 and US3709979, respectively
-
- 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
- B01J29/70—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of types characterised by their specific structure not provided for in groups B01J29/08 - B01J29/65
- B01J29/7007—Zeolite Beta
-
- 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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- Chemical & Material Sciences (AREA)
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- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Crystallography & Structural Chemistry (AREA)
- Catalysts (AREA)
Abstract
The invention discloses an isomerization catalyst and a preparation method thereof. The isomerization catalyst is prepared from, by weight, 5-10 parts of tin oxide, 3-5 parts of titanium oxide, 4-8 parts of iron oxide, 3-8 parts of manganese oxide, 10-15 parts of silica, 10-15 parts of rare earth oxide, 8-10 parts of alkali earth oxide, 3-6 parts of titanium dioxide, 4-6 parts of tungsten trioxide, 4-8 parts of vanadium pentoxide, 4-6 parts of silicon fluoride, 2-3 parts of molecular sieve, 5-12 parts of silicon tetrachloride, 8-10 parts of titanium tetrachloride and 6-8 parts of a binder. The catalyst prepared through adopting the above technical scheme has 80% or above higher stability than present catalysts, and the stability of the catalyst in reactions can last for 1000h or above.
Description
Technical field
The present invention relates to catalyst technical field, particularly relate to a kind of isomerization catalyst and preparation method thereof.
Background technology
The chemical reaction rate (can improve and also can reduce) of reactant can be changed in chemical reaction, and the quality of itself
The material the most not changed before and after chemical reaction with chemical property is catalyst.Xylol is very important basis
Industrial chemicals, xylol also has purposes widely in fields such as medicine, pesticide, fuel and solvents, existing main employing
Dimethylbenzene adsorbing separation and three kinds of techniques of selective disproportionation of toluene produce xylol.
In petrochemical industry produces, from the C8 aromatic hydrocarbons that various techniques obtain, except containing to, in addition to adjacent three kinds of dimethylbenzene,
Possibly together with ethylbenzene.As raw material, operated by isomerization, rectification and adsorbing separation etc., para-xylene product can be obtained.By
In ethylbenzene with xylene boiling point closely, using rectification separating energy consumption height, efficiency low, difficulty is big, converts frequently with ethylbenzene
Method, it is to avoid the accumulation of ethylbenzene in combined unit circulation logistics.Ethylbenzene converts two kinds of methods, and one is to be converted by isomery
For dimethylbenzene, another kind is to generate benzene by de-ethyl.The former is limited by thermodynamics, and conversion ratio is the most relatively low, and selectivity is the most not
Height, the latter's conversion of ethylbenzene is higher, and selectivity is good.But owing to ethylbenzene generates benzene, device is realizing output goal product to diformazan
In the case of benzene, C 8 aromatic hydrocarbon resource demand wants many.
Along with the demand of xylene product continues to increase, C8 aromatic hydrocarbon resource of different nature is used for producing diformazan
Benzene, including the C8 aromatic hydrocarbons in a certain amount of cracking of ethylene oil, thus causes producing second in the C8 aroamtic hydrocarbon raw material of dimethylbenzene
Benzene content improves, and combined unit logistics circulating load improves, and the operating severity of adsorbing separation increases, and the output capacity of device is subject to
Impact.Ethylbenzene high efficiency can be converted by the isomerization catalyst converting the ethylbenzene into benzene, solves the problems referred to above largely,
And ethylbenzene converts the benzene fraction boiling point obtained with dimethylbenzene difference relatively greatly, rectification separates and easily realizes.It addition, join at xylol
C 8 arene isomerization catalyst using ethylbenzene removing type in locking device can also make unit scale relatively save, device
In actual motion, energy consumption is relatively low.
The carrier of the isomerization catalyst converting the ethylbenzene into benzene at present many by aluminium oxide or silicon oxide and one or more
Zeolite collectively forms, and is loaded with one or more metal constituent elements.But, it is anti-that high isomerization all deposited by existing isomerization catalyst
Answering yield low, catalyst activity is low or the problem of poor stability.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of catalyst activity high or stable for the deficiencies in the prior art
Property good, there is higher specific surface area, service life is long, isomerization catalyst that isomerization reaction yield is high and preparation side thereof
Method.
For solving the above-mentioned technical problem present invention by the following technical solutions: a kind of isomerization catalyst, by following weight
The raw material of part is made, stannum oxide 5-10 part, titanium oxide 3-5 part, ferrum oxide 4-8 part, manganese oxide 3-8 part, silica 1 0-15
Part, rare earth oxide 10-15 part, alkaline-earth oxide 8-10 part, titanium dioxide 3-6 part, Tungstic anhydride. 4-6 part, vanadic anhydride
4-8 part, silicon fluoride 4-6 part, molecular sieve 2-3 part, 5 12 parts of Silicon chloride., titanium tetrachloride 8-10 part, binding agent 6-8 part.
The following is further improvement of the present invention:
Molecular sieve is ZSM-5, beta-zeolite molecular sieve and the mixture of MFI molecular sieve, and mass ratio is 1-2:3-6:2-5.
Improve further:
One or more in lanthanum, cerium, praseodymium oxide of described alkaline-earth oxide element.
Improve further:
Described rare earth oxide is one or more in calcium oxide, magnesium oxide, Barium monoxide.
Improve further:
Described binding agent is aluminium oxide.
A kind of preparation method of isomerization catalyst, it is characterised in that: in turn include the following steps:
A, the stannum oxide by above-mentioned weight portion, titanium oxide, ferrum oxide, manganese oxide, silicon dioxide, rare earth oxide, alkaline earth oxidation
Thing, titanium dioxide, Tungstic anhydride., vanadic anhydride, silicon fluoride, molecular sieve, Silicon chloride., titanium tetrachloride, binding agent are put into and are stirred
Mix mix homogeneously in machine, add aqueous solution of nitric acid, extruded moulding after being rolled into micelle shape wet cake, be dried, roasting, prepare catalyst
Semi-finished product;
B, by above-mentioned catalyst semi-finished product load activation device in, under the atmosphere of water flowing steam, be warming up to 600 DEG C-700 DEG C,
And thermostatted water processes 10-15 hour prepared finished catalyst at such a temperature.
Improve further:
In step a, the concentration of aqueous solution of nitric acid is the aqueous solution of nitric acid of 0.25g/ml-0.5g/ml.
Improve further
In step a, sintering temperature is 300~1200 DEG C, and roasting time is 4~6 hours.
Improve further
In step a, baking temperature is 100 DEG C, and drying time is 4 hours.
The present invention uses technique scheme to have following technical effect that than the raising of its stability of existing catalyst
More than 80%, the stability in catalyst reaction can reach more than 1000 hours;There is higher specific surface area, typically exist
150-300m2/ g range, aperture generates macroporous structure after about 1.5nm, high-temperature activation, aperture at about 20-40nm,
Improve the isomerization performance of catalyst;The catalyst of the present invention has higher isomerization activity, after running 10 days continuously
Its isomerization efficiency is up to 97%, and catalyst remains to keep higher active catalyst after long period of operation, and service life is 2
More than Nian.
Detailed description of the invention
Embodiment 1, a kind of isomerization catalyst, in parts by weight, including following component, stannum oxide 5 parts, titanium oxide 3 parts, oxidation
Ferrum 4 parts, manganese oxide 3 parts, silica 10 part, rare earth oxide 10 parts, alkaline-earth oxide 8 parts, titanium dioxide 3 parts, three oxidations
4 parts of tungsten, vanadic anhydride 4 parts, silicon fluoride 4 parts, 2 parts of molecular sieve, 5 parts of Silicon chloride., titanium tetrachloride 8 parts, binding agent 6 parts.
Molecular sieve is ZSM-5, beta-zeolite molecular sieve and the mixture of MFI molecular sieve, and mass ratio is 1:3:2.
Described alkaline-earth oxide element is selected from lanthanum-oxides.
Described rare earth oxide is calcium oxide.
Described binding agent is aluminium oxide.
The preparation method of a kind of isomerization catalyst, in turn includes the following steps:
1) by stannum oxide 5 parts, titanium oxide 3 parts, ferrum oxide 4 parts, manganese oxide 3 parts, silica 10 part, rare earth oxide 10 parts,
Alkaline-earth oxide 8 parts, titanium dioxide 3 parts, Tungstic anhydride. 4 parts, vanadic anhydride 4 parts, silicon fluoride 4 parts, 2 parts of molecular sieve, tetrachloro
SiClx 5 parts, it is uniform that stirrer for mixing put into by titanium tetrachloride 8 parts, binding agent 6 parts, adds aqueous solution of nitric acid, is rolled into micelle
Extruded moulding after shape wet cake, it is dried, roasting, prepares catalyst semi-finished product.
2) above-mentioned catalyst semi-finished product are loaded in activation device, under the atmosphere of water flowing steam, be warming up to 600 DEG C-700
DEG C, and thermostatted water processes 10-15 hour prepared finished catalyst at such a temperature.
In step 1, the concentration of aqueous solution of nitric acid is the aqueous solution of nitric acid of 0.25g/ml-0.5g/ml.
In step 1, sintering temperature is 300~1200 DEG C, and roasting time is 4~6 hours.
In step 1, baking temperature is 100 DEG C, and drying time is 4 hours.
Embodiment 2, a kind of isomerization catalyst, in parts by weight, including following component, stannum oxide 10 parts, titanium oxide 5
Part, ferrum oxide 8 parts, manganese oxide 8 parts, silica 15 parts, rare earth oxide 15 parts, alkaline-earth oxide 10 parts, titanium dioxide 6
Part, Tungstic anhydride. 6 parts, vanadic anhydride 8 parts, silicon fluoride 6 parts, 3 parts of molecular sieve, 12 parts of Silicon chloride., titanium tetrachloride 10 parts,
Binding agent 8 parts.
Molecular sieve is ZSM-5, beta-zeolite molecular sieve and the mixture of MFI molecular sieve, and mass ratio is 2:6:5.
Described alkaline-earth oxide element selected from cerium oxide.
Described rare earth oxide is magnesium oxide.
Described binding agent is aluminium oxide.
1) by stannum oxide 10 parts, titanium oxide 5 parts, ferrum oxide 8 parts, manganese oxide 8 parts, silica 15 parts, rare earth oxide
15 parts, alkaline-earth oxide 10 parts, titanium dioxide 6 parts, Tungstic anhydride. 6 parts, vanadic anhydride 8 parts, silicon fluoride 6 parts, molecular sieve 3
Part, 12 parts of Silicon chloride., titanium tetrachloride 10 parts, binding agent 8 parts, put into stirrer for mixing uniform, add aqueous solution of nitric acid,
It is rolled into extruded moulding after micelle shape wet cake, is dried, roasting, prepares catalyst semi-finished product.
2) above-mentioned catalyst semi-finished product are loaded in activation device, under the atmosphere of water flowing steam, be warming up to 600 DEG C-700
DEG C, and thermostatted water processes 10-15 hour prepared finished catalyst at such a temperature.
In step 1, the concentration of aqueous solution of nitric acid is the aqueous solution of nitric acid of 0.25g/ml-0.5g/ml.
In step 1, sintering temperature is 300~1200 DEG C, and roasting time is 4~6 hours.
In step 1, baking temperature is 100 DEG C, and drying time is 4 hours.
Embodiment 3, a kind of isomerization catalyst, in parts by weight, including following component, stannum oxide 8 parts, titanium oxide 4 parts,
Ferrum oxide 6 parts, manganese oxide 6 parts, silica 13 parts, rare earth oxide 13 parts, alkaline-earth oxide 9 parts, titanium dioxide 5 parts, three
Tungsten oxide 5 parts, vanadic anhydride 6 parts, silicon fluoride 5 parts, 2.5 parts of molecular sieve, 8 parts of Silicon chloride., titanium tetrachloride 9 parts, binding agent
7 parts.
Molecular sieve is ZSM-5, beta-zeolite molecular sieve and the mixture of MFI molecular sieve, and mass ratio is 1.5:5:4.
Described alkaline-earth oxide element is selected from praseodymium oxide.
Described rare earth oxide is Barium monoxide.
Described binding agent is aluminium oxide.
1) by stannum oxide 8 parts, titanium oxide 4 parts, ferrum oxide 6 parts, manganese oxide 6 parts, silica 13 parts, rare earth oxide
13 parts, alkaline-earth oxide 9 parts, titanium dioxide 5 parts, Tungstic anhydride. 5 parts, vanadic anhydride 6 parts, silicon fluoride 5 parts, molecular sieve 2.5
Part, 8 parts of Silicon chloride., titanium tetrachloride 9 parts, binding agent 7 parts, put into stirrer for mixing uniform, add aqueous solution of nitric acid, grind
It is pressed into extruded moulding after micelle shape wet cake, is dried, roasting, prepares catalyst semi-finished product.
2) above-mentioned catalyst semi-finished product are loaded in activation device, under the atmosphere of water flowing steam, be warming up to 600 DEG C-700
DEG C, and thermostatted water processes 10-15 hour prepared finished catalyst at such a temperature.
In step 1, the concentration of aqueous solution of nitric acid is the aqueous solution of nitric acid of 0.25g/ml-0.5g/ml.
In step 1, sintering temperature is 300~1200 DEG C, and roasting time is 4~6 hours.
In step 1, baking temperature is 100 DEG C, and drying time is 4 hours.
Claims (9)
1. an isomerization catalyst, it is characterised in that: it is made up of the raw material of following weight portion, stannum oxide 5-10 part, titanium oxide
3-5 part, ferrum oxide 4-8 part, manganese oxide 3-8 part, silica 1 0-15 part, rare earth oxide 10-15 part, alkaline-earth oxide 8-
10 parts, titanium dioxide 3-6 part, Tungstic anhydride. 4-6 part, vanadic anhydride 4-8 part, silicon fluoride 4-6 part, molecular sieve 2-3 part, tetrachloro
SiClx 5 12 parts, titanium tetrachloride 8-10 part, binding agent 6-8 part.
Isomerization catalyst the most according to claim 1, it is characterised in that: molecular sieve is ZSM-5, beta-zeolite molecular sieve
With the mixture of MFI molecular sieve, mass ratio is 1-2:3-6:2-5.
Isomerization catalyst the most according to claim 1, it is characterised in that: described alkaline-earth oxide element selected from lanthanum, cerium,
One or more in praseodymium oxide.
Isomerization catalyst the most according to claim 1, it is characterised in that: described rare earth oxide is calcium oxide, oxidation
One or more in magnesium, Barium monoxide.
Isomerization catalyst the most according to claim 1, it is characterised in that: described binding agent is aluminium oxide.
6. the preparation method of an isomerization catalyst, it is characterised in that: in turn include the following steps:
A, the stannum oxide by above-mentioned weight portion, titanium oxide, ferrum oxide, manganese oxide, silicon dioxide, rare earth oxide, alkaline earth oxidation
Thing, titanium dioxide, Tungstic anhydride., vanadic anhydride, silicon fluoride, molecular sieve, Silicon chloride., titanium tetrachloride, binding agent are put into and are stirred
Mix mix homogeneously in machine, add aqueous solution of nitric acid, extruded moulding after being rolled into micelle shape wet cake, be dried, roasting, prepare catalyst
Semi-finished product;
B, by above-mentioned catalyst semi-finished product load activation device in, under the atmosphere of water flowing steam, be warming up to 600 DEG C-700 DEG C,
And thermostatted water processes 10-15 hour prepared finished catalyst at such a temperature.
The preparation method of isomerization catalyst the most according to claim 6, it is characterised in that: aqueous solution of nitric acid in step a
The aqueous solution of nitric acid that concentration is 0.25g/ml-0.5g/ml.
The preparation method of isomerization catalyst the most according to claim 6, it is characterised in that: in step a, sintering temperature is
300~1200 DEG C, roasting time is 4~6 hours.
The preparation method of isomerization catalyst the most according to claim 6, it is characterised in that: in step a, baking temperature is
100 DEG C, drying time is 4 hours.
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