CN111760588A - 一种增产丙烯催化裂化助剂 - Google Patents
一种增产丙烯催化裂化助剂 Download PDFInfo
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- 238000004523 catalytic cracking Methods 0.000 title claims abstract description 52
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 title claims abstract description 49
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 title claims abstract description 48
- 239000012752 auxiliary agent Substances 0.000 title abstract description 30
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 45
- 239000011574 phosphorus Substances 0.000 claims abstract description 45
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims abstract description 44
- 239000002808 molecular sieve Substances 0.000 claims abstract description 38
- 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 38
- 239000003054 catalyst Substances 0.000 claims abstract description 17
- 239000011230 binding agent Substances 0.000 claims abstract description 13
- 239000004927 clay Substances 0.000 claims abstract description 10
- 150000001767 cationic compounds Chemical class 0.000 claims abstract description 8
- 239000005995 Aluminium silicate Substances 0.000 claims description 17
- 235000012211 aluminium silicate Nutrition 0.000 claims description 17
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 17
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 13
- -1 rare earth ions Chemical class 0.000 claims description 7
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- NFHFRUOZVGFOOS-UHFFFAOYSA-N palladium;triphenylphosphane Chemical compound [Pd].C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 NFHFRUOZVGFOOS-UHFFFAOYSA-N 0.000 claims description 6
- ZGTNBBQKHJMUBI-UHFFFAOYSA-N bis[tetrakis(hydroxymethyl)-lambda5-phosphanyl] sulfate Chemical compound OCP(CO)(CO)(CO)OS(=O)(=O)OP(CO)(CO)(CO)CO ZGTNBBQKHJMUBI-UHFFFAOYSA-N 0.000 claims description 4
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- FDTJLACUEPMPCM-UHFFFAOYSA-N 2-hydroxyethylphosphanium chloride Chemical compound [Cl-].OCC[PH3+] FDTJLACUEPMPCM-UHFFFAOYSA-N 0.000 claims description 2
- MGHULKMXWWWDEU-UHFFFAOYSA-N S(=O)(=O)([O-])[O-].OCC[PH3+].OCC[PH3+] Chemical compound S(=O)(=O)([O-])[O-].OCC[PH3+].OCC[PH3+] MGHULKMXWWWDEU-UHFFFAOYSA-N 0.000 claims description 2
- 239000004113 Sepiolite Substances 0.000 claims description 2
- VXAUWWUXCIMFIM-UHFFFAOYSA-M aluminum;oxygen(2-);hydroxide Chemical compound [OH-].[O-2].[Al+3] VXAUWWUXCIMFIM-UHFFFAOYSA-M 0.000 claims description 2
- HPTYUNKZVDYXLP-UHFFFAOYSA-N aluminum;trihydroxy(trihydroxysilyloxy)silane;hydrate Chemical compound O.[Al].[Al].O[Si](O)(O)O[Si](O)(O)O HPTYUNKZVDYXLP-UHFFFAOYSA-N 0.000 claims description 2
- 229960000892 attapulgite Drugs 0.000 claims description 2
- 239000000440 bentonite Substances 0.000 claims description 2
- 229910000278 bentonite Inorganic materials 0.000 claims description 2
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 2
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 claims description 2
- 229910052621 halloysite Inorganic materials 0.000 claims description 2
- AIRPJJGSWHWBKS-UHFFFAOYSA-N hydroxymethylphosphanium;chloride Chemical compound [Cl-].OC[PH3+] AIRPJJGSWHWBKS-UHFFFAOYSA-N 0.000 claims description 2
- 239000011159 matrix material Substances 0.000 claims description 2
- 229910021645 metal ion Inorganic materials 0.000 claims description 2
- 229910052901 montmorillonite Inorganic materials 0.000 claims description 2
- 229910052625 palygorskite Inorganic materials 0.000 claims description 2
- 229910052624 sepiolite Inorganic materials 0.000 claims description 2
- 235000019355 sepiolite Nutrition 0.000 claims description 2
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical group O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 claims description 2
- 239000005909 Kieselgur Substances 0.000 claims 1
- 230000000638 stimulation Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 14
- 238000012986 modification Methods 0.000 abstract description 13
- 230000004048 modification Effects 0.000 abstract description 13
- 238000006243 chemical reaction Methods 0.000 abstract description 10
- 150000003017 phosphorus Chemical class 0.000 abstract description 3
- 239000000654 additive Substances 0.000 description 17
- 230000000996 additive effect Effects 0.000 description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 13
- 239000007789 gas Substances 0.000 description 12
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 11
- 238000002360 preparation method Methods 0.000 description 11
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 10
- 238000001694 spray drying Methods 0.000 description 10
- 239000008367 deionised water Substances 0.000 description 9
- 229910021641 deionized water Inorganic materials 0.000 description 9
- 239000000243 solution Substances 0.000 description 9
- 239000010457 zeolite Substances 0.000 description 9
- 229910021536 Zeolite Inorganic materials 0.000 description 8
- 238000000265 homogenisation Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- GGIBUBYMTNZISI-UHFFFAOYSA-N phosphanylmethanol sulfuric acid Chemical compound OCP.OS(O)(=O)=O GGIBUBYMTNZISI-UHFFFAOYSA-N 0.000 description 6
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 5
- 239000003795 chemical substances by application Substances 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
- 150000001875 compounds Chemical class 0.000 description 5
- MNNHAPBLZZVQHP-UHFFFAOYSA-N diammonium hydrogen phosphate Chemical compound [NH4+].[NH4+].OP([O-])([O-])=O MNNHAPBLZZVQHP-UHFFFAOYSA-N 0.000 description 5
- 239000003921 oil Substances 0.000 description 5
- 239000004254 Ammonium phosphate Substances 0.000 description 4
- 150000001336 alkenes Chemical class 0.000 description 4
- 229910000148 ammonium phosphate Inorganic materials 0.000 description 4
- 235000019289 ammonium phosphates Nutrition 0.000 description 4
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 description 4
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 3
- 239000005977 Ethylene Substances 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 239000002671 adjuvant Substances 0.000 description 3
- 229910000323 aluminium silicate Inorganic materials 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 3
- 239000000295 fuel oil Substances 0.000 description 3
- 229910052809 inorganic oxide Inorganic materials 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000002715 modification method Methods 0.000 description 3
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- XYFCBTPGUUZFHI-UHFFFAOYSA-N Phosphine Chemical compound P XYFCBTPGUUZFHI-UHFFFAOYSA-N 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- CSDREXVUYHZDNP-UHFFFAOYSA-N alumanylidynesilicon Chemical compound [Al].[Si] CSDREXVUYHZDNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 238000013329 compounding Methods 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- RWGFKTVRMDUZSP-UHFFFAOYSA-N cumene Chemical compound CC(C)C1=CC=CC=C1 RWGFKTVRMDUZSP-UHFFFAOYSA-N 0.000 description 2
- 239000003502 gasoline Substances 0.000 description 2
- 229910001385 heavy metal Inorganic materials 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 239000003607 modifier Substances 0.000 description 2
- TVMXDCGIABBOFY-UHFFFAOYSA-N octane Chemical compound CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 description 2
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 2
- 239000003209 petroleum derivative Substances 0.000 description 2
- 238000004537 pulping Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- NEUNMNDZSAVWGE-UHFFFAOYSA-N tetraethyl(hydroxy)-lambda5-phosphane Chemical compound CCP(O)(CC)(CC)CC NEUNMNDZSAVWGE-UHFFFAOYSA-N 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 1
- UTADKRXSBLHTTI-UHFFFAOYSA-N CCOP(CC)(CC)(O)OCC Chemical compound CCOP(CC)(CC)(O)OCC UTADKRXSBLHTTI-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000005696 Diammonium phosphate Substances 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- ILRRQNADMUWWFW-UHFFFAOYSA-K aluminium phosphate Chemical compound O1[Al]2OP1(=O)O2 ILRRQNADMUWWFW-UHFFFAOYSA-K 0.000 description 1
- JYIBXUUINYLWLR-UHFFFAOYSA-N aluminum;calcium;potassium;silicon;sodium;trihydrate Chemical compound O.O.O.[Na].[Al].[Si].[K].[Ca] JYIBXUUINYLWLR-UHFFFAOYSA-N 0.000 description 1
- LFVGISIMTYGQHF-UHFFFAOYSA-N ammonium dihydrogen phosphate Chemical compound [NH4+].OP(O)([O-])=O LFVGISIMTYGQHF-UHFFFAOYSA-N 0.000 description 1
- 229910000387 ammonium dihydrogen phosphate Inorganic materials 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 229910001603 clinoptilolite Inorganic materials 0.000 description 1
- 239000003426 co-catalyst Substances 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 239000008119 colloidal silica Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 229910000388 diammonium phosphate Inorganic materials 0.000 description 1
- 235000019838 diammonium phosphate Nutrition 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000004231 fluid catalytic cracking Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 235000019837 monoammonium phosphate Nutrition 0.000 description 1
- 239000006012 monoammonium phosphate Substances 0.000 description 1
- 229910052680 mordenite Inorganic materials 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 235000011007 phosphoric acid Nutrition 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000009718 spray deposition Methods 0.000 description 1
- SZWHXXNVLACKBV-UHFFFAOYSA-N tetraethylphosphanium Chemical compound CC[P+](CC)(CC)CC SZWHXXNVLACKBV-UHFFFAOYSA-N 0.000 description 1
- YIEDHPBKGZGLIK-UHFFFAOYSA-L tetrakis(hydroxymethyl)phosphanium;sulfate Chemical compound [O-]S([O-])(=O)=O.OC[P+](CO)(CO)CO.OC[P+](CO)(CO)CO YIEDHPBKGZGLIK-UHFFFAOYSA-L 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 229910001845 yogo sapphire Inorganic materials 0.000 description 1
Classifications
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- 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
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/28—Phosphorising
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C4/00—Preparation of hydrocarbons from hydrocarbons containing a larger number of carbon atoms
- C07C4/02—Preparation of hydrocarbons from hydrocarbons containing a larger number of carbon atoms by cracking a single hydrocarbon or a mixture of individually defined hydrocarbons or a normally gaseous hydrocarbon fraction
- C07C4/06—Catalytic processes
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G11/00—Catalytic cracking, in the absence of hydrogen, of hydrocarbon oils
- C10G11/02—Catalytic cracking, in the absence of hydrogen, of hydrocarbon oils characterised by the catalyst used
- C10G11/04—Oxides
- C10G11/05—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
- B01J2229/18—After treatment, characterised by the effect to be obtained to introduce other elements into or onto the molecular sieve itself
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G2400/00—Products obtained by processes covered by groups C10G9/00 - C10G69/14
- C10G2400/20—C2-C4 olefins
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts
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- Chemical & Material Sciences (AREA)
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- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
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- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
本发明公开了一种增产丙烯催化裂化助剂,其特征在于以助剂干基重量100%计,含有10~60重%的ZSM‑5分子筛,5~30重%的粘结剂,0.5~5重%的含磷阳离子化合物(按P2O5计),20~80重%的粘土。采用含磷阳离子化合物作为为改性磷源,显著提高了磷改性效果。本发明助剂与催化裂化主催化剂复配,可以显著增加催化裂化反应液化气和丙烯收率。
Description
技术领域
本发明涉及一种增产丙烯催化裂化助剂,具体地说是涉及一种磷改性增产丙烯催化裂化助剂。
背景技术
丙烯是极其重要的有机化工原料之一,其最大用途是生产聚丙烯,约占52%,其次是生产丙烯腈12%、环氧丙烷7%、异丙苯7%、异丙醇4%、羰基醇9%和其他9%。随着国民经济的发展,对丙烯的需求日益剧增。近年来丙烯需求增速一直高于乙烯。石脑油裂解联产乙烯和丙烯,典型比例为丙烯与乙烯比为6.5:1,缺额主要由炼油厂催化裂化(FCC)装置补充。
FCC装置以重油为原料,反应操作条件较苛刻,要求多产丙烯FCC催化剂具有良好的热稳定性、水热稳定性、机械强度和抗重金属污染能力。其他要求包括:稀土元素含量适中,酸强度较高、酸密度适宜,氢转移活性较低,对丙烯的选择性较高。硅铝比较高的分子筛酸强度大,对生成丙烯有利。常规FCC装置增产轻质烯烃的途径是选择合适的催化剂或使用助剂。其中,采用增产丙烯助剂是目前提高催化裂化装置轻烯烃收率最有效的办法。当前,用于催化裂化增产丙烯助剂大多使用ZSM-5分子筛作为主要活性组分,并且为了进一步提高丙烯助剂的反应性能,通常需要对ZSM-5分子筛进行改性或者直接对助剂进行改性,其中磷元素改性是主要的改性手段。
CN1796497公开了一种增产丙烯的催化裂化助剂,其特征是在于该助剂按干基计,由10~65重%的改性ZSM-5分子筛、0~60重%的粘土、15~70重%的无机氧化物粘结剂、0.5~10重%的镁添加剂和0.5~15重%的锌添加剂组成,其中所说的改性ZSM-5分子筛经磷元素改性。所说的粘结剂、镁添加剂和锌添加剂均是以氧化物计。该助剂应用于催化裂化过程中,在增加催化裂化液化气产率和提高催化裂化汽油辛烷值的同时,可大幅度地提高液化气中的丙烯浓度。
CN1796495公开了一种催化裂化助剂,该助剂按干基计,含有10~65重%的改性ZSM-5分子筛、15~60重%的两种沸石、15~70重%的无机氧化物粘结剂和2~25重%的磷添加剂,其中所说的改性ZSM-5分子筛经磷元素改性。所说的两种沸石为重量比为1:99~99:1的丝光沸石和斜发沸石;所说的粘结剂和磷添加剂均以氧化物计。该助剂应用于石油烃的催化裂化过程中,在增加催化裂化液化气产率的同时,可显著提高液化气中的丙烯浓度。
CN101147876公开了一种提高催化裂化液化气丙烯浓度的催化助剂,以助剂的重量为基准,含有10~65重%的MFI结构沸石、0~20重%的非MFI结构沸石、0~60重%的粘土、以氧化物计15~60重%的无机氧化物粘结剂、以CuO计0.5~15重%的铜添加剂和以P2O5计2~25重%的磷添加剂。该催化助剂应用于石油烃的催化裂化过程中,在增加催化裂化液化气产率和提高催化裂化汽油辛烷值的同时,可显著地提高液化气中的丙烯浓度。
CN1872415公开了一种含ZSM-5沸石的催化裂化助剂制备方法,其特征在于ZSM-5沸石是在焙烧高岭土上晶化生长,经过离子交换、水洗、干燥和/或焙烧处理,然后制备成流化催化裂化助剂,以改善助剂的性能,从而增产丙烯。
US2007032374公开了生产轻烯烃的LPG的沸石添加剂,有抗金属污染作用,使用磷处理的沸石,并浸渍了稀土盐。
FR28894609公开了一种增产轻烯烃和液化气的FCC助剂,能抗重金属钒污染,其组分包含硝酸处理过的氧化铝、粘土、胶态二氧化硅、ZSM-5沸石和磷酸。
CN200910237013X公开了一种催化裂化丙烯助剂及其制备方法,其以磷酸铝溶胶既作为助剂制备粘结剂又作为磷改性剂。所制备丙烯助剂具有良好的耐磨强度,并且具有更高的活性、较低的干气和焦炭产率。
综述所述,无论采用何种改性方式,现有增产丙烯助剂制备专利技术本质上均是通过对ZSM-5分子筛磷改性,进而达到提高助剂催化裂化反应性能的目的。通常,现有技术中所用改性磷源一般都选自磷酸、磷酸铵、磷酸氢二铵、磷酸二氢铵等常规含磷化合物。然而,上述常规含磷化合物中磷元素均处于阴离子基团中,而ZSM-5分子筛为硅铝酸盐,其骨架结构带有强的负电荷,这使得二者之间存在很强的电荷斥力,不利于改性磷元素与ZSM-5分子筛的结合,从而会抑制磷元素的改性效果。为此,有研究者采用四乙氧基氢氧化膦为磷源,制备了磷改性ZSM-5分子筛(丁健、薛腾、何鸣元等.催化学报,2017,38(1):48-57.)。不同于常规含磷化合物,该磷源中磷元素处于阳离子基团中,避免了上述含磷基团和ZSM-5分子筛骨架间电荷排斥的问题。然而,上述方法所用四乙氧基氢氧化膦为强碱性,在对分子筛改性的同时,会破坏ZSM-5分子筛的骨架结构。
发明内容
本发明的目的是提供一种以ZSM-5分子筛为活性组分,磷改性增产丙烯催化裂化助剂,所述助剂采用的磷改性方式可以同时避免上述当前助剂磷改性方法存在的问题。
本发明提供了一种增产丙烯催化裂化助剂,其特征在于以助剂干基总重量100%计,含有10~60重%的ZSM-5分子筛,5~30重%的粘结剂,0.5~5重%的含磷阳离子化合物(按P2O5计),20~80重%的粘土。
本发明所述用于催化裂化增产丙烯助剂,其中所述ZSM-5分子筛可选自不同硅铝比的ZSM-5分子筛,还可以是相应的经过稀土离子或其它金属离子交换改性后的ZSM-5分子筛。
本发明所述增产丙烯催化裂化助剂,其中所述粘结剂可选自硅溶胶、铝溶胶、硅铝溶胶、硅铝凝胶以及酸化拟薄水铝石等各类可用于催化裂化催化剂制备的粘结剂,优选铝溶胶。
本发明所述增产丙烯催化裂化助剂,其中所述含磷阳离子化合物可选自四羟甲基氯化磷四羟乙基氯化磷、四羟甲基硫酸磷和四羟乙基硫酸磷,优选四羟甲基硫酸磷。
本发明所述增产丙烯催化裂化助剂,其中所述粘土可选自高岭土、多水高岭土、膨润土、蒙脱石、海泡石、凹凸棒土、硅藻土以及合成粘土等各类可作为催化裂化催化剂基质的各类粘土,优选高岭土。
本发明并不特别限定所述助剂的制备方法,其可采用催化裂化催化剂通用制备方法制得如将作为主要组分的ZSM-5分子筛、粘结剂、含磷阳离子化合物、粘土等物质加入至水中形成浆液,然后经均质、喷雾干燥成型、焙烧后即可得助剂产品。
与现有丙烯助剂相比,本发明所述增产丙烯催化裂化助剂,以含磷阳离子化合物作为磷改性剂,具有如下优势:(1)所用含磷阳离子化合物中磷元素位于阳离子基团中,而ZSM-5分子筛骨架结构带有负电荷,改性元素磷和分子筛间存在强的正负电荷吸引作用,相对于常规磷改性方法,本发明磷改性方法中磷元素与ZSM-5分子筛结合更加紧密,从而可以更加充分地发挥磷改性作用;(2)所用含磷阳离子化合物的水溶液接近中性,改性过程不会对ZSM-5分子筛骨架结构造成破坏,可以避免ZSM-5结构破坏对助剂性能带来的不利影响。基于上述两方面优势,使得本发明所述催化裂化增产丙烯助剂在催化裂化反应中具有优异的增产液化气和丙烯性能。
具体实施方式
下面结合实施例对本发明作进一步的说明,但本发明保护范围并不受这些实例的限制。
1)实例中主要分析评价方法
1.助剂耐磨损性能的测定:将一定量的助剂放入固定装置中,在恒定气流下吹磨5小时,除第一小时外,后四小时的平均磨损百分数称为助剂的磨损指数(强度);
2.助剂的微反活性评价:助剂预先在800℃、100%水蒸汽条件下处理17小时,以大港轻柴油作为反应原料油,反应温度460℃,进油时间70秒,助剂装量2.5~5克;
3.助剂反应性能评价,将基础剂和助剂进行复配,然后在微型流化催化裂化装置上(ACE)进行反应性能评价。基础剂及助剂预先经过800℃、100%水蒸汽条件下处理17小时。反应温度530℃,剂油重量比为5,助剂复配量为6重%,原理油性质见表1。
表1原料油性质
2)原料及规格
ZSM-5分子筛(固含量91.5重%:n(SiO2)/n(Al2O3)=33,山西腾茂科技有限公司,合格工业品;
高岭土(固含量:84.5重%),中国高岭土公司生产,合格工业品;
磷酸(85重%)、磷酸铵、四羟甲基硫酸磷(75%重%溶液),国药集团,分析纯;
四乙基氢氧化膦(40重%溶液),Sigma-Aldrich公司,分析纯。
基础剂TMC-06:山西腾茂科技有限公司生产,工业品;
实施例1
本发明增产丙烯催化裂化助剂的制备。
将323克ZSM-5分子筛、555克铝溶胶、500克高岭土、64克羟甲基硫酸磷溶液与1944克去离子水混合打浆,然后经均质、喷雾干燥、焙烧后即得所述助剂AC-S1(P2O5/催化剂干基=2.0重%)。
实施例2
本发明增产丙烯催化裂化助剂的制备。
将363克ZSM-5分子筛、623克铝溶胶、576克高岭土、25克羟甲基硫酸磷溶液与1955克去离子水混合打浆,然后经均质、喷雾干燥、焙烧后即得所述助剂AC-S2(P2O5/催化剂干基=0.7重%)。
实施例3
本发明增产丙烯催化裂化助剂的制备。
将404克ZSM-5分子筛、692克铝溶胶、612克高岭土、120克羟甲基硫酸磷溶液与2532克去离子水混合打浆,然后经均质、喷雾干燥、焙烧后即得所述助剂AC-S3(P2O5/催化剂干基=3.0重%)。
实施例4
本发明增产丙烯催化裂化助剂的制备。
将440克ZSM-5分子筛、755克铝溶胶、694克高岭土、44克羟甲基硫酸磷溶液与2185克去离子水混合打浆,然后经均质、喷雾干燥、焙烧后即得所述助剂AC-S4(P2O5/催化剂干基=1.0重%)。
实施例5
本发明增产丙烯催化裂化助剂的制备。
将419克ZSM-5分子筛、718克铝溶胶、609克高岭土、205克羟甲基硫酸磷溶液与2409克去离子水混合打浆,然后经均质、喷雾干燥、焙烧后即得所述助剂AC-S5(P2O5/催化剂干基=5.0重%)。
实施例6
本发明增产丙烯催化裂化助剂的制备。
将470克ZSM-5分子筛、807克铝溶胶、698克高岭土、187克羟甲基硫酸磷溶液与2460克去离子水混合打浆,然后经均质、喷雾干燥、焙烧后即得所述助剂AC-S6(P2O5/催化剂干基=4.0重%)。
对比例1
不含磷对比助剂的制备。
将460克ZSM-5分子筛、790克铝溶胶、740克高岭土与2768克去离子水混合打浆,然后经均质、喷雾干燥、焙烧后即得对比助剂AC-D1。
对比例2
以磷酸为磷源对比助剂的制备。
将425克ZSM-5分子筛、730克铝溶胶、42克磷酸、658克高岭土与2558克去离子水混合打浆,然后经均质、喷雾干燥、焙烧后即得对比助剂AC-D2(P2O5/催化剂干基=2.0重%)。
对比例3
以磷酸铵为磷源对比助剂的制备。
将375克ZSM-5分子筛、643克铝溶胶、568克高岭土、62克磷酸铵与2352克去离子水混合打浆,然后经均质、喷雾干燥、焙烧后即得对比助剂AC-D3(P2O5/催化剂干基=3.0重%)。
对比例4
以四乙基氢氧化膦为磷源对比助剂的制备。
将455克ZSM-5分子筛、781克铝溶胶、718克高岭土、166克四乙基氢氧化磷溶液与2261克去离子水混合打浆,然后经均质、喷雾干燥、焙烧后即得对比助剂AC-D4(P2O5/催化剂干基=1.0重%)。
表2不同助剂样品的强度和活性数据
助剂样品 | 强度,% | 微反活性,% |
AC-S1 | 1.1 | 41 |
AC-S2 | 1.0 | 40 |
AC-S3 | 1.2 | 42 |
AC-S4 | 1.1 | 40 |
AC-S5 | 1.3 | 43 |
AC-S6 | 1.3 | 43 |
AC-D1 | 1.0 | 28 |
AC-D2 | 4.1 | 33 |
AC-D3 | 4.6 | 34 |
AC-D4 | 3.8 | 36 |
现有工业助剂 | 3.9 | 36 |
表2给出了不同助剂样品的强度和活性数据。可以看出,与不采用磷改性助剂样品(AC-D1)相比,本发明磷改性助剂样品的微反活性普遍提高了12~15个百分点,活性提高幅度远远高于使用常规无机含磷化合物和四乙基氢氧化磷为磷源制备的改性助剂样品(AC-D2、AC-D3、AC-D4),表明本发明助剂优良的磷改性效果。由强度数据可以看出,与不含磷的对比助剂AC-D1样品相比,本发明使用的含磷阳离子化合物对所制备助剂样品强度没有显著影响,强度显著高于使用常规无机含磷化合物和四乙基氢氧化磷为磷源制备的改性助剂样品(AC-D2、AC-D3、AC-D4)。
表3重油催化裂化ACE评价结果
复配不同助剂催化剂的重油催化裂化评价结果如表3所示。可以看出,与基础剂相比,复配本发明助剂样品的液化气和丙烯收率均提高了6个和3个百分点以上,液化气和丙烯收率提高幅度显著优于对比例助剂样品以及现有工业助剂样品,充分说明了本发明助剂优异的增产丙烯性能。
Claims (5)
1.一种增产丙烯催化裂化助剂,其特征在于以助剂干基总重量100%计,含有10~60重%的ZSM-5分子筛,5~30重%的粘结剂,0.5~5重%的含磷阳离子化合物(按P2O5计),20~80重%的粘土。
2.根据权利要求1所述增产丙烯催化裂化助剂,其中所述ZSM-5分子筛可选自不同硅铝比的ZSM-5分子筛,还可以是相应的经过稀土离子或其它金属离子交换改性后的ZSM-5分子筛。
3.根据权利要求1所述增产丙烯催化裂化助剂,其中所述粘结剂可选自硅溶胶、铝溶胶、硅铝溶胶、硅铝凝胶以及酸化拟薄水铝石等各类可用于催化裂化催化剂制备的粘结剂,优选铝溶胶。
4.根据权利要求1所述增产丙烯催化裂化助剂,其中所述含磷阳离子化合物可选自四羟甲基氯化磷、四羟乙基氯化磷、四羟甲基硫酸磷和四羟乙基硫酸磷,优选四羟甲基硫酸磷。
5.根据权利要求1所述增产丙烯催化裂化助剂,其中所述粘土可选自高岭土、多水高岭土、膨润土、蒙脱石、海泡石、凹凸棒土、硅藻土以及合成粘土等各类可作为催化裂化催化剂基质的各类粘土,优选高岭土。
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CN103305274A (zh) * | 2012-03-12 | 2013-09-18 | 深圳凯奇化工有限公司 | 一种缓蚀阻垢剂的制造方法 |
CN106607081A (zh) * | 2015-10-21 | 2017-05-03 | 中国石油化工股份有限公司 | 一种有机磷化物改性zsm-5分子筛的方法 |
CN109622028A (zh) * | 2018-12-31 | 2019-04-16 | 中海油天津化工研究设计院有限公司 | 一种高稳定性催化裂化柴油加氢裂化催化剂及其制备方法 |
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CN116251618A (zh) * | 2021-12-09 | 2023-06-13 | 中国石油天然气股份有限公司 | 一种多产丙烯催化裂化助剂及其制备方法 |
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