WO2013177728A1 - 重油高效转化催化裂化催化剂及其制备方法 - Google Patents
重油高效转化催化裂化催化剂及其制备方法 Download PDFInfo
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- WO2013177728A1 WO2013177728A1 PCT/CN2012/001008 CN2012001008W WO2013177728A1 WO 2013177728 A1 WO2013177728 A1 WO 2013177728A1 CN 2012001008 W CN2012001008 W CN 2012001008W WO 2013177728 A1 WO2013177728 A1 WO 2013177728A1
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- Prior art keywords
- exchange
- rare earth
- molecular sieve
- phosphorus
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 56
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- 238000004523 catalytic cracking Methods 0.000 title claims abstract description 19
- 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 127
- 229910052761 rare earth metal Inorganic materials 0.000 claims abstract description 122
- 239000002808 molecular sieve Substances 0.000 claims abstract description 113
- 150000002910 rare earth metals Chemical class 0.000 claims abstract description 86
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 57
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 43
- 239000011574 phosphorus Substances 0.000 claims abstract description 43
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims abstract description 42
- 239000002002 slurry Substances 0.000 claims abstract description 27
- 239000011734 sodium Substances 0.000 claims abstract description 25
- 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 abstract description 23
- 229910052708 sodium Inorganic materials 0.000 claims abstract description 23
- 238000001354 calcination Methods 0.000 claims abstract description 19
- 238000012986 modification Methods 0.000 claims abstract description 19
- 230000004048 modification Effects 0.000 claims abstract description 19
- QGZKDVFQNNGYKY-UHFFFAOYSA-O ammonium group Chemical group [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims abstract description 11
- 239000002994 raw material Substances 0.000 claims abstract description 10
- 229910052809 inorganic oxide Inorganic materials 0.000 claims abstract description 7
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- 238000000034 method Methods 0.000 claims description 51
- -1 polypropylene Polymers 0.000 claims description 40
- 239000010457 zeolite Substances 0.000 claims description 33
- 229910021536 Zeolite Inorganic materials 0.000 claims description 32
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 32
- 239000012065 filter cake Substances 0.000 claims description 32
- 239000006185 dispersion Substances 0.000 claims description 25
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 claims description 24
- 230000008569 process Effects 0.000 claims description 24
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 21
- 229910052684 Cerium Inorganic materials 0.000 claims description 20
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 20
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 claims description 20
- 239000000243 solution Substances 0.000 claims description 18
- 150000003863 ammonium salts Chemical class 0.000 claims description 13
- 239000000047 product Substances 0.000 claims description 13
- 239000007787 solid Substances 0.000 claims description 13
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 12
- 229910052782 aluminium Inorganic materials 0.000 claims description 11
- 239000002270 dispersing agent Substances 0.000 claims description 11
- YGSDEFSMJLZEOE-UHFFFAOYSA-N salicylic acid Chemical compound OC(=O)C1=CC=CC=C1O YGSDEFSMJLZEOE-UHFFFAOYSA-N 0.000 claims description 10
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 9
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 8
- 238000005406 washing Methods 0.000 claims description 8
- 239000005995 Aluminium silicate Substances 0.000 claims description 7
- 235000012211 aluminium silicate Nutrition 0.000 claims description 7
- 230000008859 change Effects 0.000 claims description 7
- MNNHAPBLZZVQHP-UHFFFAOYSA-N diammonium hydrogen phosphate Chemical compound [NH4+].[NH4+].OP([O-])([O-])=O MNNHAPBLZZVQHP-UHFFFAOYSA-N 0.000 claims description 7
- 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 7
- 235000006408 oxalic acid Nutrition 0.000 claims description 7
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 6
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 6
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 claims description 6
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 claims description 6
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 claims description 6
- 239000000843 powder Substances 0.000 claims description 6
- 229920002472 Starch Polymers 0.000 claims description 5
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 5
- 229910000388 diammonium phosphate Inorganic materials 0.000 claims description 5
- 235000019838 diammonium phosphate Nutrition 0.000 claims description 5
- FJKROLUGYXJWQN-UHFFFAOYSA-N papa-hydroxy-benzoic acid Natural products OC(=O)C1=CC=C(O)C=C1 FJKROLUGYXJWQN-UHFFFAOYSA-N 0.000 claims description 5
- 229960004889 salicylic acid Drugs 0.000 claims description 5
- 235000019698 starch Nutrition 0.000 claims description 5
- 239000008107 starch Substances 0.000 claims description 5
- FEWJPZIEWOKRBE-JCYAYHJZSA-N Dextrotartaric acid Chemical compound OC(=O)[C@H](O)[C@@H](O)C(O)=O FEWJPZIEWOKRBE-JCYAYHJZSA-N 0.000 claims description 4
- FEWJPZIEWOKRBE-UHFFFAOYSA-N Tartaric acid Natural products [H+].[H+].[O-]C(=O)C(O)C(O)C([O-])=O FEWJPZIEWOKRBE-UHFFFAOYSA-N 0.000 claims description 4
- 235000011054 acetic acid Nutrition 0.000 claims description 4
- ILRRQNADMUWWFW-UHFFFAOYSA-K aluminium phosphate Chemical compound O1[Al]2OP1(=O)O2 ILRRQNADMUWWFW-UHFFFAOYSA-K 0.000 claims description 4
- 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 4
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 claims description 4
- 239000004327 boric acid Substances 0.000 claims description 4
- 238000001914 filtration Methods 0.000 claims description 4
- 229910052621 halloysite Inorganic materials 0.000 claims description 4
- 239000002243 precursor Substances 0.000 claims description 4
- KKCBUQHMOMHUOY-UHFFFAOYSA-N sodium oxide Chemical compound [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 claims description 4
- 229910001948 sodium oxide Inorganic materials 0.000 claims description 4
- 239000011975 tartaric acid Substances 0.000 claims description 4
- 235000002906 tartaric acid Nutrition 0.000 claims description 4
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 claims description 3
- 239000005711 Benzoic acid Substances 0.000 claims description 3
- 239000005696 Diammonium phosphate Substances 0.000 claims description 3
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000001361 adipic acid Substances 0.000 claims description 3
- 235000011037 adipic acid Nutrition 0.000 claims description 3
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 3
- 235000010233 benzoic acid Nutrition 0.000 claims description 3
- 239000004202 carbamide Substances 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 3
- 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 3
- 235000019253 formic acid Nutrition 0.000 claims description 3
- 235000011167 hydrochloric acid Nutrition 0.000 claims description 3
- 229910052901 montmorillonite Inorganic materials 0.000 claims description 3
- 229910017604 nitric acid Inorganic materials 0.000 claims description 3
- 239000010451 perlite Substances 0.000 claims description 3
- 235000019362 perlite Nutrition 0.000 claims description 3
- 150000003839 salts Chemical class 0.000 claims description 3
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 claims description 3
- 239000004254 Ammonium phosphate Substances 0.000 claims description 2
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- 229910000148 ammonium phosphate Inorganic materials 0.000 claims description 2
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- 229910052624 sepiolite Inorganic materials 0.000 claims description 2
- 235000019355 sepiolite Nutrition 0.000 claims description 2
- ISIJQEHRDSCQIU-UHFFFAOYSA-N tert-butyl 2,7-diazaspiro[4.5]decane-7-carboxylate Chemical compound C1N(C(=O)OC(C)(C)C)CCCC11CNCC1 ISIJQEHRDSCQIU-UHFFFAOYSA-N 0.000 claims description 2
- OAKJQQAXSVQMHS-UHFFFAOYSA-N Hydrazine Chemical compound NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 claims 2
- 239000012266 salt solution Substances 0.000 claims 2
- DLYUQMMRRRQYAE-UHFFFAOYSA-N tetraphosphorus decaoxide Chemical compound O1P(O2)(=O)OP3(=O)OP1(=O)OP2(=O)O3 DLYUQMMRRRQYAE-UHFFFAOYSA-N 0.000 claims 2
- 239000004743 Polypropylene Substances 0.000 claims 1
- 150000001408 amides Chemical class 0.000 claims 1
- YYWCUXCWMQPBSN-UHFFFAOYSA-N bismuth;phosphite Chemical compound [Bi+3].[O-]P([O-])[O-] YYWCUXCWMQPBSN-UHFFFAOYSA-N 0.000 claims 1
- 229910001593 boehmite Inorganic materials 0.000 claims 1
- TVFDJXOCXUVLDH-UHFFFAOYSA-N caesium atom Chemical class [Cs] TVFDJXOCXUVLDH-UHFFFAOYSA-N 0.000 claims 1
- 239000002131 composite material Substances 0.000 claims 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-M dihydrogenphosphate Chemical compound OP(O)([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-M 0.000 claims 1
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- FAHBNUUHRFUEAI-UHFFFAOYSA-M hydroxidooxidoaluminium Chemical compound O[Al]=O FAHBNUUHRFUEAI-UHFFFAOYSA-M 0.000 claims 1
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- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 description 4
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- 235000011130 ammonium sulphate Nutrition 0.000 description 4
- 239000000571 coke Substances 0.000 description 4
- NZFWOBIOVKFUTL-UHFFFAOYSA-N lanthanum sodium Chemical compound [Na][La] NZFWOBIOVKFUTL-UHFFFAOYSA-N 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- IEQIEDJGQAUEQZ-UHFFFAOYSA-N phthalocyanine Chemical compound N1C(N=C2C3=CC=CC=C3C(N=C3C4=CC=CC=C4C(=N4)N3)=N2)=C(C=CC=C2)C2=C1N=C1C2=CC=CC=C2C4=N1 IEQIEDJGQAUEQZ-UHFFFAOYSA-N 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
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- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 2
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 description 2
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- KWVFUTDPKIKVQW-UHFFFAOYSA-N [Sr].[Na] Chemical compound [Sr].[Na] KWVFUTDPKIKVQW-UHFFFAOYSA-N 0.000 description 2
- 150000001335 aliphatic alkanes Chemical class 0.000 description 2
- 150000001336 alkenes Chemical class 0.000 description 2
- VXAUWWUXCIMFIM-UHFFFAOYSA-M aluminum;oxygen(2-);hydroxide Chemical compound [OH-].[O-2].[Al+3] VXAUWWUXCIMFIM-UHFFFAOYSA-M 0.000 description 2
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 2
- LFVGISIMTYGQHF-UHFFFAOYSA-N ammonium dihydrogen phosphate Chemical compound [NH4+].OP(O)([O-])=O LFVGISIMTYGQHF-UHFFFAOYSA-N 0.000 description 2
- 229910000387 ammonium dihydrogen phosphate Inorganic materials 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
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- 239000000463 material Substances 0.000 description 2
- 239000011259 mixed solution Substances 0.000 description 2
- 235000019837 monoammonium phosphate Nutrition 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 239000004135 Bone phosphate Substances 0.000 description 1
- 239000004480 active ingredient Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- CSDREXVUYHZDNP-UHFFFAOYSA-N alumanylidynesilicon Chemical compound [Al].[Si] CSDREXVUYHZDNP-UHFFFAOYSA-N 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 235000019270 ammonium chloride Nutrition 0.000 description 1
- 150000008064 anhydrides Chemical class 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- XSOHCQBMTDEBAD-UHFFFAOYSA-N azane Chemical compound N.N.N XSOHCQBMTDEBAD-UHFFFAOYSA-N 0.000 description 1
- PRORZGWHZXZQMV-UHFFFAOYSA-N azane;nitric acid Chemical compound N.O[N+]([O-])=O PRORZGWHZXZQMV-UHFFFAOYSA-N 0.000 description 1
- 238000003776 cleavage reaction Methods 0.000 description 1
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- 239000008139 complexing agent Substances 0.000 description 1
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- 238000007429 general method Methods 0.000 description 1
- GPRLSGONYQIRFK-UHFFFAOYSA-N hydron Chemical compound [H+] GPRLSGONYQIRFK-UHFFFAOYSA-N 0.000 description 1
- 238000001027 hydrothermal synthesis Methods 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910052746 lanthanum Inorganic materials 0.000 description 1
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
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- 230000014759 maintenance of location Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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- 235000012149 noodles Nutrition 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- 150000004291 polyenes Chemical class 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
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- 230000008093 supporting effect Effects 0.000 description 1
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- JOPDZQBPOWAEHC-UHFFFAOYSA-H tristrontium;diphosphate Chemical compound [Sr+2].[Sr+2].[Sr+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O JOPDZQBPOWAEHC-UHFFFAOYSA-H 0.000 description 1
- 230000002485 urinary effect Effects 0.000 description 1
- 229910052720 vanadium 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
- B01J29/82—Phosphates
- B01J29/84—Aluminophosphates containing other elements, e.g. metals, boron
- B01J29/85—Silicoaluminophosphates (SAPO compounds)
-
- 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
- B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
- B01J21/16—Clays or other mineral silicates
-
- 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
- B01J29/08—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the faujasite type, e.g. type X or Y
- B01J29/084—Y-type faujasite
-
- 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
- B01J29/08—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the faujasite type, e.g. type X or Y
- B01J29/085—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the faujasite type, e.g. type X or Y containing rare earth elements, titanium, zirconium, hafnium, zinc, cadmium, mercury, gallium, indium, thallium, tin or lead
- B01J29/088—Y-type faujasite
-
- 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
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- 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
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- C10G2400/00—Products obtained by processes covered by groups C10G9/00 - C10G69/14
- C10G2400/30—Aromatics
Definitions
- the invention relates to an oil catalytic cracking catalyst for oil conversion ability and a method for preparing a cracked catalyst for blending residual oil and a method for preparing the same.
- the catalytic cracking unit is an important secondary processing method for crude oil, and its comprehensive product distribution determines the economic benefits of the refinery.
- FCC catalysts are required to have stronger heavy oil conversion capacity and high value product selectivity.
- ⁇ type molecular sieve As the main provider of cracking activity of heavy oil cracking catalyst, ⁇ type molecular sieve, its activity stability and high cracking activity are the key factors determining the conversion ability of FCC catalyst heavy oil.
- Patent ZL200410058089.3 introduces a preparation method of rare earth modified cerium type molecular sieve, which is to adjust the ⁇ value of the system to 8 ⁇ 11 by using lye after the end of the rare earth exchange reaction, and then carry out a conventional subsequent treatment process according to the method.
- the prepared molecular sieve rare earth ions are all located in the small cage (sodal stone cage);
- Chinese patent ZL97122039.5 describes a preparation method of ultra-stable cerium zeolite, which comprises contacting a cerium type zeolite with an acid solution and an ammonium ion-containing solution, and performing high-temperature steam treatment.
- the acid is used in an amount of 1.5 to 6 moles of hydrogen ion per mole of the framework aluminum, the acid solution concentration is 0.1 to 5 equivalents per liter, and the temperature at which the cerium type zeolite is contacted with the acid solution is 5 to 100 ° C, and the contact time is 0.5 to 72 hours.
- the weight ratio of the Y-type zeolite to the ammonium ion is 2 to 20.
- the modification method involved in the patent needs to add an ammonium ion-containing solution, the purpose of which is to reduce the content of sodium oxide in the molecular sieve or to reduce the damage of the acid gas to the molecular sieve structure during the roasting process.
- the FCC catalyst prepared by using the molecular sieve has the heavy oil conversion ability. The characteristics of strong and light oil yield are high; however, the molecular sieve modification technology has the following technical defects: 1) A large amount of ammonium ions are added during the preparation process, and the ammonium ions finally enter the atmosphere or sewage, thereby increasing the ammonia nitrogen pollution and the pollution control cost. ;
- a method for preparing a rare earth-containing ultra-stable cerium molecular sieve is described in the patent ZL02103909.7.
- the method is prepared by subjecting the NaY molecular sieve to one-time roasting once, and the NaY molecular sieve is placed in an ammonium ion solution.
- the molecular sieve prepared by the method has certain anti-vanadium pollution ability, its activity stability and cracking activity are low, and the development trend of heavy oil quality and inferior quality of the raw material oil cannot be satisfied.
- This is mainly related to the positional distribution of rare earth ions in the molecular sieve super cage and sodalite cage during molecular sieve modification.
- the method clarifies that the rare earth ions exist in the molecular sieve system in two forms, that is, some rare earth ions enter the sodalite cage in the form of ions, and the other rare earth ions are rare earth oxides (the precursor is rare earth oxalate, which is converted into oxidation by subsequent calcination).
- the rare earth is dispersed on the surface of the molecular sieve, which reduces the stable supporting effect of the rare earth ions on the molecular sieve structure. At the same time, there is a large amount of ammonia nitrogen pollution in the method, and the added oxalic acid and or oxalate are more harmful to the environment and human body. Big.
- CN200410029875.0 discloses a preparation method of rare earth ultra-stable Y-type zeolite, which is characterized in that the method comprises treating zeolite with a mixed solution of rare earth salt and citric acid or a mixed solution of inorganic ammonium salt, rare earth salt and citric acid.
- a step of. The method can simplify the process, and the prepared zeolite as an active component of the cracking catalyst has the advantages of reducing the olefin content of the catalytic cracking gasoline product and significantly increasing the yield of the catalytic cracking light oil product, but the method does not locate the rare earth ions of the molecular sieve. Be explained. Summary of the invention
- the object of the present invention is to provide a novel heavy oil high-efficiency conversion catalytic cracking catalyst and a preparation method thereof, which are characterized in that the heavy oil has strong conversion ability, the coke selectivity is moderate, and the target product has high yield.
- the invention provides a novel heavy oil high-efficiency conversion catalytic cracking catalyst, which is characterized in that the catalyst composition contains 2 ⁇ 50% by weight of phosphorus-containing ultra-stable rare earth cerium type molecular sieve, 0.5 ⁇ 30% by weight of one or several other molecular sieves, 0.5 ⁇ 70% by weight of clay, 1.0 ⁇ 65% by weight of high temperature resistant inorganic oxide and 0.01 ⁇ 12.5% by weight of oxidized rare earth, wherein phosphorus containing ultra-stable rare earth cerium type molecular sieve contains 1 ⁇ 20% by weight of rare earth oxide, sodium oxide is not More than 1.2% by weight, phosphorus (in terms of P) 0.1 ⁇ 5 weight%, crystallinity 51 ⁇ 69%, unit cell parameter 2.449nm ⁇ 2.469nm; the phosphorus-containing ultra-stable rare earth Y type molecular sieve preparation process includes rare earth exchange and dispersion Pre-exchange, wherein the order of rare earth exchange and dispersion pre-exchange is not limited, the rare
- the method and conditions for the exchange of the rare earth are not particularly limited, and general methods and conditions can be employed.
- the invention also provides a preparation method of the heavy oil catalytic cracking catalyst, which mainly comprises the following steps:
- (1) Preparation of phosphorus-containing ultra-stable rare earth Y-type molecular sieve Using NaY molecular sieve (preferably silicon-aluminum ratio greater than 4.0, crystallinity greater than 70%) as raw material, after rare earth exchange and dispersion pre-exchange, the molecular sieve slurry is filtered and washed. And the first roasting, the "one-and-one-baked" rare earth sodium Y molecular sieve is obtained, wherein the order of rare earth exchange and dispersion pre-exchange is not limited; then the "one-to-one-baked" rare earth sodium Y molecular sieve is subjected to ammonium salt exchange and phosphorus reform.
- NaY molecular sieve preferably silicon-aluminum ratio greater than 4.0, crystallinity greater than 70%
- the second calcination thereby obtaining a phosphorus-containing ultra-stable rare earth Y-type molecular sieve, wherein the order of hinge salt exchange and phosphorus modification is not limited, and the strontium salt exchange and phosphorus modification processes are continuously or discontinuously performed,
- the secondary calcination is carried out after the ammonium salt is exchanged for sodium reduction, and the phosphorus modification can be carried out either before the second calcination or after the second calcination.
- the molecular sieve slurry can be washed and filtered without being filtered. It can also be washed and filtered.
- the RE 2 O 3 /Y zeolite (mass) is preferably 0.005 to 0.25, preferably 0.01 to 0.20; the exchange temperature is 0 to 100 ° C, preferably 60 to 95 ° C; The ratio is 2.5 to 6.0, preferably 3.5 to 5.5, the exchange time is 0.1 to 2 hours, and the optimum is 0.3 to 1.5 hours.
- the dispersion is pre-exchanged, and the dispersant is added in an amount of 0.2% by weight to 7% by weight, preferably 0.2. Weight% to 5% by weight; exchange temperature is 0 to 10 CTC, preferably 60 to 95 ° C; exchange time is 0.1 to 1.5 hours.
- the modified molecular sieve slurry is filtered and washed with water to obtain a filter cake, and the obtained filter cake is flash-dried to have a moisture content of 30% to 50%, and finally calcined, and the first calcination condition can be used, for example, at 350 ° C. ⁇ 70CTC, 0 ⁇ 100% water vapour roasting for 0.3 ⁇ 3.5 hours, preferably at 450 °C ⁇ 650 °C, 15 ⁇ 100% water vapour roasting for 0.5 ⁇ 2.5 hours, that is, ''one cross one baking' super stable rare earth sodium Y molecular sieve.
- the preparation process of the molecular sieve of the invention further comprises hinge salt exchange and phosphorus modification, wherein the order of ammonium salt exchange and phosphorus modification is not limited, and the ammonium salt exchange and phosphorus modification processes are continuously or discontinuously carried out, With or without roasting process.
- the rare earth exchange, the ammonium salt exchange, the phosphorus modification, the calcination (the first calcination, the second calcination) can adopt the conditions used in the exchange modification and ultra-stabilization processes which are familiar in the industry, and the present invention is not particularly limit.
- the T phosphorus compound is selected from any one or more of the group consisting of tl phosphoric acid, phosphorous acid, folic anhydride, tribasic acid, ammonium diammonium, ammonium phosphate, strontium phosphate, ammonium dihydrogen phosphate, and aluminum phosphate.
- the C ⁇ 700 ° C, 0 to 100% water vapor is calcined for 0.3 to 3.5 hours, preferably 0.5 to 2.5 hours, to finally obtain the highly active phosphorus-containing ultrastable rare earth Y type molecular sieve provided by the present invention.
- the exchange process of rare earth exchange and dispersion pre-exchange can be carried out by tank exchange, belt exchange and/or filter cake exchange; In this case, it is possible to divide the rare earth compound solution into several parts under the premise that the total amount of the rare earth is constant, and perform tank exchange, belt exchange and/or cake exchange, that is, multiple exchanges.
- the dispersant in the process of dispersing the pre-exchange process, can be divided into several parts under the premise of the total amount of dispersant, for tank exchange, belt exchange and/or filter cake exchange; rare earth exchange and dispersion pre-pretreatment When switching to multiple exchanges, the two types of exchanges can be crossed.
- the rare earth compound of the present invention is a rare earth chloride or a rare earth nitrate or a rare earth sulfate, preferably a rare earth chloride or a rare earth nitrate.
- the rare earth of the present invention may be a cerium-rich or cerium-rich rare earth, or may be pure cerium or pure cerium.
- the dispersing agent in the dispersion pre-exchange process of the present invention is selected from the group consisting of phthalocyanine powder, boric acid, urea, ethanol, polyacrylamide, acetic acid, oxalic acid, adipic acid, formic acid, hydrochloric acid, nitric acid, citric acid, salicylic acid.
- phthalocyanine powder boric acid, urea, ethanol, polyacrylamide, acetic acid, oxalic acid, adipic acid, formic acid, hydrochloric acid, nitric acid, citric acid, salicylic acid.
- tartaric acid, benzoic acid, and starch preferably two or more.
- the other molecular sieves in the catalyst composition of the present invention are one or more selected from the group consisting of Y zeolite, L zeolite, ZSM 5 zeolite, ⁇ zeolite, aluminum phosphate zeolite, ⁇ zeolite, preferably cerium type zeolite, ZSM-5 zeolite. , zeolite beta, or the above-mentioned zeolite modified by conventional physical or chemical means, including HY, USY, REY, REHY, REUSY, H-ZSM-5, ⁇ .
- the clay according to the present invention is one or more selected from the group consisting of kaolin, halloysite, montmorillonite, sepiolite, perlite, etc.; said high temperature resistant inorganic oxide is one or more selected from the group consisting of al 2 0 3, Si0 2, Si0 2 -Al 2 0 3, A1P0 4, ⁇ :; , ⁇ :; :: ⁇ ;. ⁇ , : ; i ni i, ⁇ ;; m : ⁇ u'j ⁇ ⁇ n ii m 3 ⁇ 4it3 ⁇ 4 ⁇ .Vr 3 ⁇ 4 ; !
- Crystallinity (C/Co) X-ray diffraction method.
- RE 2 0 3 content colorimetric method.
- Micro-reaction activity The sample was pretreated at 80 (TC, 100% water vapor for 4 hours).
- the reaction material was Dagang light diesel oil, the reaction temperature was 46 CTC, the reaction time was 70 seconds, the catalyst loading was 5.0 g, and the weight ratio of the agent oil was 3.2. , the total conversion rate was used as the micro-reaction activity.
- ACE heavy oil microreactor The reaction temperature is 530 ° C, the ratio of agent to oil is 5, and the raw material oil is 30% vacuum residue of Xinjiang oil blending.
- NaY molecular sieve NaY-1 (silica-aluminum ratio 4.8, crystallinity 92%), NaY-2 (silica-aluminum ratio 4.1, crystallinity 83%), produced by Lanzhou Petrochemical Company Catalyst Plant.
- Ultra-stable one-to-one baked molecular sieve sample crystallinity 60%, sodium oxide 4.3m°/. , Lanzhou Petrochemical Company Catalyst Factory production.
- Rare earth solution rare earth chloride (rare earth oxide 277.5 g / liter), rare earth nitrate (rare earth oxide 252 g / liter), all industrial products, from the catalyst plant of Lanzhou Petrochemical Company.
- the obtained filter cake was flash-dried to have a moisture content of 30% to 50%, and finally calcined at 70% water vapor and 670 Torr for 1.0 hour to prepare "one-and-one-baked" rare earth sodium strontium.
- a reaction kettle with a heating jacket add 500 grams (dry basis) of ultra-stable rare earth sodium lanthanum molecular sieve and a certain amount of deionized water to prepare a slurry with a solid content of 120g/L, and add 120g.
- the active component of the phosphorus-containing rare earth ultrastable Y molecular sieve of the present invention is prepared, and is referred to as modified molecular sieve A-1.
- reaction vessel equipped with a heating jacket, 3000 g of NaY-1 molecular sieve (dry basis) and deionized water were successively added to prepare a slurry having a solid content of 150 g/L, and 43 g of hydrochloric acid was added thereto, and the reaction was carried out at 85 ° C for 1 hour.
- the active component of the phosphorus-containing rare earth ultrastable Y molecular sieve according to the present invention is prepared, and is referred to as modified molecular sieve D-1.
- the rare earth nitrate solution is heated to 88 ⁇ , the exchange pH is 4.7, the rare earth nitrate addition amount is RE 2 0 3 /Y zeolite (mass) is 0.04, and the belt filter vacuum is 0.03; Steaming and drying to make the moisture content of 30% ⁇ 50%, and finally calcining for 1.5 hours under 80% water vapor and 53CTC, to obtain "one-to-one baking" ultra-stable rare earth sodium Y"-cross one baking" ultra-stable rare earth sodium Y.
- the method for preparing the REUSY molecular sieve is similar to that of the third embodiment of the present invention. It is the same as that of the third embodiment, and the obtained ultra-stable rare earth lanthanum is classified into the sieve number F-1, and the obtained catalyst number is obtained. Is F.
- This comparative example uses the molecular sieve preparation method described in CN200510114495.1 to examine the reaction performance of the molecular sieve, and the catalyst preparation process is the same as in the fifth embodiment.
- the method for preparing the REUSY molecular sieve was similar to the method shown in Example 5 except that no citric acid and phthalocyanine powder were added, and the same as in Example 5, the obtained ultra-stable rare earth Y-type molecular sieve number was G-1, and the obtained catalyst number was G.
- the physicochemical properties of the ultra-stable rare earth cerium type molecular sieve obtained in the examples and comparative examples of the present invention are shown in Table 1. The analysis results show that: Compared with the comparative example, the new molecular sieve has the characteristics of good structural stability and small particle size.
- the catalyst prepared by the method of the present invention has excellent heavy oil conversion ability and coke selectivity, and the total liquid yield and light oil yield are significantly higher than that of the comparative catalyst.
- Table 4 shows the evaluation results of the catalyst B riser. Compared with the comparative catalyst G, the total liquid recovery of the catalyst of the present invention is increased by 0.97 percentage points, and the light oil yield is increased by 0.77 percentage points, and the gasoline property is equivalent.
- Liquid liquefied gas (C3-C4) 17.95 18.16
- One of the main active components of the novel heavy oil catalyst of the present invention is a high-cracking activity-stabilized cerium-containing rare earth ultra-stable cerium type molecular sieve, which uses a dispersing agent to pre-disperse NaY molecular sieve in a rare earth modified preparation process, thereby reducing
- the degree of agglomeration between the molecular sieve particles makes the surface of the molecular sieve more contact with the rare earth ions, which reduces the resistance of the rare earth ions during the exchange process, causes the rare earth ions to exchange more into the molecular sieve cage, and migrates to the subsequent steam roasting process.
- the sodalite cage improves the structural stability and activity stability of the molecular sieve.
- Rare earth ions are localized in sodalite cages. There are no rare earth ions on the surface of supercage and molecular sieves, which reduces the acid strength and density at this position, reduces the biofocus rate of the active sites, and better solves the heavy oil conversion capacity and coke of the catalyst. Selective contradiction.
Abstract
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EP12877707.5A EP2857096A4 (en) | 2012-06-01 | 2012-07-27 | CATALYTIC CRACKING CATALYST FOR HIGH HEAVY OIL YIELD CONVERSION AND PREPARATION METHOD THEREOF |
US14/404,776 US9968918B2 (en) | 2012-06-01 | 2012-07-27 | Catalytic cracking catalyst for high-efficiency conversion of heavy oil and preparation method thereof |
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