US20120006724A1 - Hydrocracking catalysts, processes for preparing the same and uses thereof - Google Patents
Hydrocracking catalysts, processes for preparing the same and uses thereof Download PDFInfo
- Publication number
- US20120006724A1 US20120006724A1 US13/177,364 US201113177364A US2012006724A1 US 20120006724 A1 US20120006724 A1 US 20120006724A1 US 201113177364 A US201113177364 A US 201113177364A US 2012006724 A1 US2012006724 A1 US 2012006724A1
- Authority
- US
- United States
- Prior art keywords
- ranging
- catalyst
- alumina
- amount
- hydrocracking
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
- 239000003054 catalyst Substances 0.000 title claims abstract description 118
- 238000004517 catalytic hydrocracking Methods 0.000 title claims abstract description 69
- 238000000034 method Methods 0.000 title claims abstract description 50
- 229910052751 metal Inorganic materials 0.000 claims abstract description 50
- 239000002184 metal Substances 0.000 claims abstract description 50
- 239000011959 amorphous silica alumina Substances 0.000 claims abstract description 42
- 239000011148 porous material Substances 0.000 claims abstract description 37
- 238000005984 hydrogenation reaction Methods 0.000 claims abstract description 30
- 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 30
- 239000002808 molecular sieve Substances 0.000 claims abstract description 29
- 238000005336 cracking Methods 0.000 claims abstract description 9
- 239000000243 solution Substances 0.000 claims description 60
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 44
- 239000000843 powder Substances 0.000 claims description 33
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 31
- 238000001035 drying Methods 0.000 claims description 20
- 238000006243 chemical reaction Methods 0.000 claims description 19
- 239000000047 product Substances 0.000 claims description 17
- 239000002253 acid Substances 0.000 claims description 14
- 239000003921 oil Substances 0.000 claims description 14
- 239000000377 silicon dioxide Substances 0.000 claims description 14
- 238000001914 filtration Methods 0.000 claims description 12
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 9
- 230000032683 aging Effects 0.000 claims description 9
- 239000010703 silicon Substances 0.000 claims description 9
- 229910052710 silicon Inorganic materials 0.000 claims description 9
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 9
- 239000004115 Sodium Silicate Substances 0.000 claims description 8
- 239000012065 filter cake Substances 0.000 claims description 8
- 229910052911 sodium silicate Inorganic materials 0.000 claims description 8
- 238000001354 calcination Methods 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 7
- 238000010298 pulverizing process Methods 0.000 claims description 7
- 229910001388 sodium aluminate Inorganic materials 0.000 claims description 7
- 238000005406 washing Methods 0.000 claims description 7
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 6
- 239000000853 adhesive Substances 0.000 claims description 6
- 230000001070 adhesive effect Effects 0.000 claims description 6
- ANBBXQWFNXMHLD-UHFFFAOYSA-N aluminum;sodium;oxygen(2-) Chemical compound [O-2].[O-2].[Na+].[Al+3] ANBBXQWFNXMHLD-UHFFFAOYSA-N 0.000 claims description 6
- 238000009835 boiling Methods 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 239000011259 mixed solution Substances 0.000 claims description 6
- 238000000465 moulding Methods 0.000 claims description 6
- 229910052759 nickel Inorganic materials 0.000 claims description 6
- 239000002243 precursor Substances 0.000 claims description 6
- 239000012266 salt solution Substances 0.000 claims description 6
- 229910052721 tungsten Inorganic materials 0.000 claims description 6
- 230000002378 acidificating effect Effects 0.000 claims description 5
- 239000007789 gas Substances 0.000 claims description 5
- 239000012752 auxiliary agent Substances 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 241000269350 Anura Species 0.000 claims description 3
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 3
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 claims description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 3
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims description 3
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical class [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 claims description 3
- 229910052796 boron Inorganic materials 0.000 claims description 3
- 229910052731 fluorine Inorganic materials 0.000 claims description 3
- 239000011737 fluorine Substances 0.000 claims description 3
- 239000011812 mixed powder Substances 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 229910052750 molybdenum Inorganic materials 0.000 claims description 3
- 238000006386 neutralization reaction Methods 0.000 claims description 3
- 150000003376 silicon Chemical class 0.000 claims description 3
- 239000010936 titanium Substances 0.000 claims description 3
- 229910052719 titanium Inorganic materials 0.000 claims description 3
- 229910052726 zirconium Inorganic materials 0.000 claims description 3
- 239000004927 clay Substances 0.000 claims description 2
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 claims description 2
- JKQOBWVOAYFWKG-UHFFFAOYSA-N molybdenum trioxide Chemical compound O=[Mo](=O)=O JKQOBWVOAYFWKG-UHFFFAOYSA-N 0.000 description 24
- 238000005470 impregnation Methods 0.000 description 18
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 description 14
- 230000000694 effects Effects 0.000 description 10
- 238000003756 stirring Methods 0.000 description 9
- 239000000203 mixture Substances 0.000 description 8
- DDTIGTPWGISMKL-UHFFFAOYSA-N molybdenum nickel Chemical compound [Ni].[Mo] DDTIGTPWGISMKL-UHFFFAOYSA-N 0.000 description 8
- 238000002360 preparation method Methods 0.000 description 8
- 229910052593 corundum Inorganic materials 0.000 description 7
- MOWMLACGTDMJRV-UHFFFAOYSA-N nickel tungsten Chemical compound [Ni].[W] MOWMLACGTDMJRV-UHFFFAOYSA-N 0.000 description 7
- 229910001845 yogo sapphire Inorganic materials 0.000 description 7
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- LCSNMIIKJKUSFF-UHFFFAOYSA-N [Ni].[Mo].[W] Chemical compound [Ni].[Mo].[W] LCSNMIIKJKUSFF-UHFFFAOYSA-N 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 5
- 239000007787 solid Substances 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 4
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 4
- 238000000975 co-precipitation Methods 0.000 description 4
- 229910052681 coesite Inorganic materials 0.000 description 4
- 229910052906 cristobalite Inorganic materials 0.000 description 4
- 239000008367 deionised water Substances 0.000 description 4
- 229910021641 deionized water Inorganic materials 0.000 description 4
- 238000011156 evaluation Methods 0.000 description 4
- 238000009472 formulation Methods 0.000 description 4
- 229910017604 nitric acid Inorganic materials 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 239000002002 slurry Substances 0.000 description 4
- 229910052682 stishovite Inorganic materials 0.000 description 4
- 229910052905 tridymite Inorganic materials 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 3
- 241000219793 Trifolium Species 0.000 description 3
- 235000019647 acidic taste Nutrition 0.000 description 3
- 239000012670 alkaline solution Substances 0.000 description 3
- 239000006185 dispersion Substances 0.000 description 3
- 238000007670 refining Methods 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- 238000009827 uniform distribution Methods 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 238000004566 IR spectroscopy Methods 0.000 description 2
- KKCBUQHMOMHUOY-UHFFFAOYSA-N Na2O Inorganic materials [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 description 2
- 241000219782 Sesbania Species 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000003929 acidic solution Substances 0.000 description 2
- JLDSOYXADOWAKB-UHFFFAOYSA-N aluminium nitrate Chemical compound [Al+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O JLDSOYXADOWAKB-UHFFFAOYSA-N 0.000 description 2
- 239000010779 crude oil Substances 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 239000002283 diesel fuel Substances 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 239000012467 final product Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 238000010335 hydrothermal treatment Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 230000002045 lasting effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 238000004537 pulping Methods 0.000 description 2
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 229910019975 (NH4)2SiF6 Inorganic materials 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 241000736305 Marsilea quadrifolia Species 0.000 description 1
- YGYAWVDWMABLBF-UHFFFAOYSA-N Phosgene Chemical compound ClC(Cl)=O YGYAWVDWMABLBF-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 229910003910 SiCl4 Inorganic materials 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 1
- AFTDTIZUABOECB-UHFFFAOYSA-N [Co].[Mo] Chemical compound [Co].[Mo] AFTDTIZUABOECB-UHFFFAOYSA-N 0.000 description 1
- 229910000329 aluminium sulfate Inorganic materials 0.000 description 1
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000013065 commercial product Substances 0.000 description 1
- 239000008139 complexing agent Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000012847 fine chemical Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000003350 kerosene Substances 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 239000011268 mixed slurry Substances 0.000 description 1
- 239000012452 mother liquor Substances 0.000 description 1
- KBJMLQFLOWQJNF-UHFFFAOYSA-N nickel(ii) nitrate Chemical compound [Ni+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O KBJMLQFLOWQJNF-UHFFFAOYSA-N 0.000 description 1
- 235000006408 oxalic acid Nutrition 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 238000001637 plasma atomic emission spectroscopy Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- FDNAPBUWERUEDA-UHFFFAOYSA-N silicon tetrachloride Chemical compound Cl[Si](Cl)(Cl)Cl FDNAPBUWERUEDA-UHFFFAOYSA-N 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 238000005292 vacuum distillation Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
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- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/76—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/84—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/85—Chromium, molybdenum or tungsten
- B01J23/88—Molybdenum
- B01J23/883—Molybdenum and nickel
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- 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
- B01J29/10—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the faujasite type, e.g. type X or Y containing iron group metals, noble metals or copper
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- B01J21/12—Silica and alumina
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- B01J23/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/24—Chromium, molybdenum or tungsten
- B01J23/28—Molybdenum
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- B01J23/24—Chromium, molybdenum or tungsten
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- B01J23/85—Chromium, molybdenum or tungsten
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- B01J23/85—Chromium, molybdenum or tungsten
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- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/76—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/84—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/85—Chromium, molybdenum or tungsten
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- B01J23/8885—Tungsten containing also molybdenum
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B01J29/00—Catalysts comprising molecular sieves
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Definitions
- the present disclosure relates to hydrocracking catalysts, such as single-stage hydrocracking catalysts having a high metal amount and a high selectivity to middle distillates, which can be used for processing heavy distillate oil, processes for preparing the same, and use thereof.
- Hydrocracking technology is one of the primary means for cracking heavy oil. It has advantages such as a strong adaptability to raw materials, flexible product schemes, high target product selectivity, excellent product quality, and high added-value. It can also satisfy the market requirements for clean fuel and has become the main secondary refining technology in the twenty-first century.
- Single-stage hydrocracking technology has the advantages of simple processing, easy operation, low investment, and stable product selectivity and properties.
- the single-stage hydrocracking technology since the raw material is in direct contact with the single-stage hydrocracking catalyst without any pre-refining treatment or with a simple pre-refining treatment, it is desirable that the single-stage hydrocracking catalyst having a stronger hydrogenating performance and a stronger resistance to impurities.
- the crude oil quality becomes worse year by year, and to increase the economic benefits, refineries have begun to process the crude oil with deep vacuum distillation technology, so that the end boiling point of the vacuum distillate is increased from 520° C. to about 600° C.
- the single-stage hydrocracking catalyst is in direct contact with a plurality of organosulfides and organonitrides.
- catalysts having sufficiently high hydrodenitrogenation activity, hydrodesulfurization activity, and hydrosaturation performance may be used to maintain the sufficient catalyst performance.
- the hydrogenation performance of the hydrocracking catalyst having a conventional metal amount (the total amount of the hydrogenation metal is lower than 30% by weight calculated by the oxides) may be less satisfactory with respect to the actual use requirements on the single-stage hydrocracking catalyst.
- Hydrocracking catalysts are generally prepared by the impregnation method, the co-precipitation method, and the comulling method.
- the impregnation method When the impregnation method is used to load active components, less than desirable values may result for the amount of the active components, the specific surface area, and the pore volume.
- Co-precipitation methods may be used to obtain hydrocracking catalysts having a very high active metal amount. See U.S. Pat. Nos. 5,086,032 and 4,820,677 and Chinese Patent Application No.
- the catalyst prepared by the co-precipitation method may have a smaller pore volume and specific surface area, and might only be useful for treating distillates lighter than diesel oil. Moreover, since the catalyst prepared by the co-precipitation method may have a low metal utilization, a bad metal dispersion capability, a complex preparation process, and a worse product stability, the catalyst may also have an undesirable performance.
- the comulling method can be used for preparing catalysts having various active metal amounts. However, the catalysts prepared by the kneading method (comulling method) have a relatively low performance, a low specific surface area, and a low active metal utilization, so that it has been less used.
- the single-stage hydrocracking catalysts have a higher active metal amount and also a higher specific surface area and a pore volume at the same time.
- the aforesaid current methods may be less than desirable in achieving such objectives.
- a single-stage hydrocracking catalyst that, desirably, can simultaneously have high specific surface area and high metal amounts, while its pore volume remains relatively large and can also be prepared by the impregnation methods disclosed herein.
- a hydrocracking catalyst comprising at least one cracking component and at least one hydrogenation component
- the cracking component comprises at least one molecular sieve present in an amount ranging from 0% to 20% by weight relative to the total weight of the catalyst and at least one amorphous silica-alumina present in an amount ranging from 20% to 60% by weight, relative to the total weight of the catalyst
- the hydrogenation component comprises at least one hydrogenation metal present in a total amount ranging from 34% to 75%, such as from 40% to 60%, by weight calculated by the mass of oxides relative to the total weight of the catalyst.
- the hydrocracking catalyst disclosed herein has an average pore diameter (R) ranging from 7 nm to 15 nm.
- the hydrocracking catalyst may comprise suitable components as required, such as alumina, clay, and/or at least one auxiliary agent chosen from phosphorus, fluorine, boron, titanium, and zirconium.
- the at least one molecular sieve in the hydrocracking catalyst is chosen from Y-type molecular sieves, ⁇ -molecular sieves, ZSM-5 molecular sieves, SAPO molecular sieves, and MCM-41 mesoporous sieves, and combinations thereof, such as Y-type molecular sieves and ⁇ -molecular sieves.
- the at least one molecular sieve can be in an amount ranging, for example, from 1% to 10% by weight relative to the total weight of the catalyst.
- the type and amount of the molecular sieve can be specifically chosen and determined by taking into account raw materials' properties and property goals of product to be obtained.
- the at least one amorphous silica-alumina in the hydrocracking catalyst is the main cracking component and is the place for dispersing a plurality of hydrogenation active metals, so as to obtain a greater pore volume and specific surface area and suitable acid properties.
- the at least one amorphous silica-alumina may have the following characteristics: a surface area ranging from 400 m 2 /g to 650 m 2 /g, such as from 400 m 2 /g to 550 m 2 /g, a pore volume ranging from 1.0 cm 3 /g to 2.0 cm 3 /g, such as from 1.2 cm 3 /g to 1.6 cm 3 /g, a silica mass amount ranging from 20% to 80%, such as from 30% to 65%, by weight relative to the total weight of the at least one amorphous silica-alumina, an average pore diameter ranging from 10 nm to 20 nm, such as from 10 nm to 15 nm, and an infrared acid amount (determined by pyridine adsorption infrared spectroscopy at 160° C.) ranging from 0.3 mmol/g to 0.8 mmol/g.
- the at least one hydrogenation metal in the hydrogenation component of the hydrocracking catalyst disclosed herein is chosen from W, Mo, Ni and Co, such as W and Ni.
- the hydrocracking catalyst disclosed herein can be, for example, suitable for the single-stage hydrocracking process.
- the hydrocracking catalyst disclosed herein is prepared by the following steps:
- auxiliary agents may be added into the solid powder, or the impregnating solution.
- the amorphous silica-alumina precursor is an amorphous gelatinous silica-alumina dry powder prepared by the following steps:
- a vacuum distillate such as a vacuum gas oil is in contact with the hydrocracking catalyst disclosed herein in the presence of hydrogen gas.
- the hydrocracking reaction is conducted at a temperature ranging from 350° C. to 480° C., a reaction pressure ranging from 8 MPa to 20 MPa, a liquid hourly volume space velocity of the vacuum distillate ranging from 0.4 h ⁇ 1 to 5 h ⁇ 1 , and a hydrogen gas/oil volume ratio ranging from 100:1 to 3,000:1 under the standard condition (i.e., 1 atmosphere and 273.15 K).
- a small amount of a hydrorefining catalyst may be used before and/or after the hydrocracking catalyst is used, for example, the hydrorefining catalyst is used in an amount ranging from 5% to 90%, such as from 30% to 80%, by volume relative to the volume of the hydrocracking catalyst.
- the vacuum distillate has a final boiling point ranging from 500° C. to 630° C.
- Hydrocracking catalyst obtained by using special macroporous amorphous silica-alumina as the dispersion support of the main acidic component and active component and by using a solid powder impregnation method as disclosed herein can have a higher pore volume and specific surface area as well as a higher hydrogenation active component content.
- the hydrocracking catalyst disclosed herein can have a higher hydrogenation performance, such as hydrodenitrogenation performance, so as to enable the normal exertion of the cracking properties of the single-stage hydrocracking catalyst.
- the hydrocracking catalyst disclosed herein can, for example, be prepared by a powder impregnation process.
- a powder impregnation process as disclosed herein can absorb more impregnation solution, and have a solution absorption rate of more than 500%.
- a conventional impregnation process of the molded support has a solution absorption rate of only 100% during the impregnation.
- the impregnating solution disclosed herein does not need a higher metal concentration.
- the solution can have a simple formulation and stable properties and can be used in the industrial scale.
- a more dilute metal salt impregnating solution may decrease the solution viscosity and reduce the surface tension of the solution, so as to weaken the effect of the capillary resistance during the impregnation process.
- the process disclosed herein may be able to provide a high amount of the metal components in the catalyst and also further increase the dispersion degree of the metal on the support surface.
- the hydrocracking catalyst disclosed herein uses modified molecular sieves and macroporous amorphous silica-alumina supports, and the powder-pulping addition method, described below in the examples can be used for impregnation, which can enable that the catalyst not only has a higher metal amount and a better uniformity of the metal component distribution, but also has a higher pore volume and surface area.
- the impregnating solution can be recycled in an embodiment.
- Such embodiment may result in a simpler preparation process, lower cost, and less pollution, and can be suitable for the industrial scale.
- a special Si-modified macroporous alumina having a high pore volume and specific surface area can be used as the support, which may support more metal components and enable the metal components to be better dispersed on the support.
- a single macroporous alumina support can be used in the process disclosed herein, which can enable that the catalyst not only has a higher metal amount and a better uniformity of the metal component distribution, but also has a higher pore volume and surface area.
- the amorphous silica-alumina used in the catalyst support disclosed herein is prepared by co-precipitating silica and alumina at the same time and introducing organosilicon source as the modified pore-expanding agent after the completion of the gelatinization reaction, which can not only obtain the amorphous silica-alumina having a uniform distribution of silica and alumina, but also increase the Si:Al ratio, pore volume and specific surface area of the amorphous silica-alumina, so as to prepare amorphous silica-alumina having macropores, high specific surface, and high silica-alumina ratio satisfying desired goals of the catalyst performance.
- Uniform distribution of alumina and silica can also result in uniform distribution of acid centers of the amorphous silica-alumina.
- the organic substances expand and volatilize during the drying and calcining processes, so as to enable the amorphous silica-alumina to obtain a greater pore volume and specific surface.
- the pore volume and specific surface area of the product can be adjusted by adjusting the addition amount of organosilicon according to the actual use requirements.
- pollutants such as ammonia are not used, so that there is no discharge of ammonia nitrogen.
- the silicon source is the combination of low-cost water glass and a small amount of organosilicon source, so as to effectively control the production cost.
- such process can be simple, lower cost, and lower in pollution, and can be suitable for industrial scale preparation.
- the silica-alumina ratio of the amorphous silica-alumina product can be flexibly controlled by adjusting the ratio of sodium silicate to sodium aluminate in the alkaline solution, and the ratio of sodium silicate to organosilicon, so as to obtain the amorphous silica-alumina having a broad silica amount ranging from 20% to 80% by weight relative to the total weight of the amorphous silica-alumina.
- the silica amount in the amorphous silica-alumina has a direct relationship with the acidity, and thus the acidity can be further adjusted to prepare the amorphous silica-alumina materials having different acidities according to different use requirements.
- the process for preparing the catalyst disclosed herein comprises:
- the modified molecular sieve used in the hydrocracking catalyst support as disclosed herein can be chosen from modified Y-type molecular sieves, 13-molecular sieves, ZSM-5 molecular sieves, SAPO molecular sieves, and MCM-41 mesoporous sieves, and combinations thereof.
- the molecular sieves can be modified by hydrothermal treatment or by chemical dealuminization with EDTA, SiCl 4 , (NH 4 ) 2 SiF 6 , phosgene, or oxalic acid, or can be modified by a combination of (1) hydrothermal treatment using acidic, alkaline, or salt complexing agents and (2) chemical dealuminization.
- the modified molecular sieves can have the properties of a silica-alumina molar ratio ranging from 3:1 to 100:1, such as from 10:1 to 60:1, a Na 2 O amount of 0.5 wt %, and an infrared acid amount ranging from 0.1 mmol/g to 1.2 mmol/g, such as from 0.2 mmol/g to 0.6 mmol/g.
- super-macroporous modified alumina such as macroporous modified alumina prepared according to Chinese Application No. 200510047483.1, having a pore volume as high as ranging from 1.4 mL/g to 1.8 mL/g and a specific surface area ranging from 500 m 2 /g to 550 m 2 /g, can be used as the support component.
- macroporous amorphous silica-alumina has a pore volume as high as that ranging from 1.0 mL/g to 2.0 mL/g, and a specific surface area ranging from 400 m 2 /g to 650 m 2 /g.
- An exemplary process for preparing the macroporous amorphous silica-alumina comprises:
- the metal salt solution as disclosed herein generally comprises one or more of the salt solutions of the VIB and/or VIII group metals, such as W, Mo, Ni, Co and the like, wherein the metal solution generally has a concentration ranging from 5.0 g to 50.0 g metal/100 ml.
- the specific surface area and pore volume are determined by the low-temperature liquid nitrogen physical adsorption method; infrared acid amounts for B acid and L acid are determined by the pyridine adsorption infrared spectroscopy, wherein the total amount of B acid and L acid is the infrared acid amount; the microelements are determined by the plasma emission spectroscopy.
- the mixture was extruded into a bar form, wherein the pore plate of the bar extruder is in a clover form having a diameter of 1.5 mm.
- the wet bar was dried at 120° C. for 4 h and calcined at 550° C. for 3 h.
- the resulting support was numbered HF-1S.
- the support numbered HF-2S and the catalysts numbered HF-2A and HF-2B were prepared according to the steps recited in Example 1, except that the macroporous alumina in Example 1 was replaced with a silicon-modified macroporous alumina in the same amount, which was prepared according to the patent application Chinese Patent Application No. 200510047483.1.
- the support numbered HF-3S and the catalysts numbered HF-3A and HF-3B were prepared according to the steps recited in Example 2, except that the impregnating solutions in Example 2 were changed to (1) a tungsten-nickel solution having WO 3 in an amount of 51.5 g/100 ml, and NiO in an amount of 11.4 g/100 ml; and (2) a molybdenum-nickel solution having MoO 3 in an amount of 50.3 g/100 ml, and NiO in an amount of 12.4 g/100 ml.
- Three metal impregnating solutions were prepared: (1) a tungsten-nickel solution having WO 3 in an amount of 12.1 g/100 ml and NiO in an amount of 2.1 g/100 ml; (2) a molybdenum-nickel solution having MoO 3 in an amount of 11.7 g/100 ml and NiO in an amount of 1.8 g/100 ml; and (3) a tungsten-molybdenum-nickel solution having WO 3 in an amount of 6.3 g/100 ml, MoO 3 in an amount of 7.7 g/100 ml, and NiO in an amount of 2.6 g/100 ml.
- the hydrothermally treated alumina powder was added into each 800 ml stirring metal impregnating solution, impregnated for 120 min, filtered, dried at 120° C. for 4 h, pulverized, and sifted with 180 mesh.
- the resulting powder was mixed with a suitable amount of sesbania powder, and a dilute nitric acid having a concentration of 4 g HNO 3 /100 ml was added for molding, wherein the pore plate of the bar extruder is in a clover form having a diameter of 1.5 mm.
- the wet bar was dried at 120° C. for 4 h, calcined at 480° C. for 3 h, and the resulting catalysts were numbered HF-4A, HF-4B and HF-4C respectively.
- the catalysts numbered HF-5A, HF-5B, and HF-5C were prepared according to the process recited in Example 4, except that the macroporous alumina in Example 4 was replaced with the same amount of macroporous gelatinous amorphous silica-alumina powder having a pore volume of 1.32 ml/g, a specific surface area of 485 m2/g, a dry basis of 75.4%, a silica amount of 54.4% (based on the dry basis), an average pore diameter of 12.7 nm, and an infrared acid amount of 0.66 mmol/g; and a suitable amount of microporous alumina adhesive was added during molding.
- the macroporous gelatinous amorphous silica-alumina powder was prepared by a process comprising parallel-flow adding dropwise 6,000 ml of a AlCl 3 solution containing 5 g/100 ml of Al 2 O 3 and a mixed solution of sodium aluminate and sodium silicate containing 5 g/100 ml of Al 2 O 3 and 15 g/100 ml of SiO 2 , [whose amount depends on the desired pH value, i.e., 8.0 in the present example, into a stirring gelatinization reaction tank having a temperature of 65° C., maintaining the pH value to be 8.0, the reaction lasting for 40 min until the completion of the dripping of the AlCl 3 solution, continuing to stir for 10 min, adding dropwise 120 ml of tetra ethyl ortho-silicate for 20 minutes, adjusting the slurry pH value to 9.0 with 5% sodium hydroxide solution and aging for 1.5 h, filtering the product, washing three times with a deion
- the catalysts numbered HF-6A, HF-6B and HF-6C within the scope of the invention were prepared according to the steps recited in Example 5, except that (1) the macroporous alumina in Example 4 was replaced with 578 g of materials containing the macroporous amorphous silica-alumina prepared by the following process and the macroporous alumina in Example 4 in a mass ratio of 4:1, and (2) the three impregnating solutions were replaced with (i) a tungsten-nickel solution having WO 3 in an amount of 18.0 g/100 ml and NiO in an amount of 2.8 g/100 ml, (ii) a molybdenum-nickel solution having MoO 3 in an amount of 17.8 g/100 ml and NiO in an amount of 2.9 g/100 ml, and (iii) a tungsten-molybdenum-nickel solution having WO 3 in an amount of 8.7 g/100 ml, MoO 3 in an amount
- Macroporous amorphous silica-alumina (having the properties of a pore volume of 1.40 ml/g, a specific surface area of 550 m 2 /g, a dry basis of 74.3%, a silica amount of 40.5% (based on the dry basis), an average pore diameter of 13.6 nm, and an infrared acid amount of 0.61 mmol/g) was prepared by a process comprising parallel-flow adding dropwise 16,000 ml of a AlCl 3 solution containing 5 g/100 ml of Al 2 O 3 and a mixed solution of sodium aluminate and sodium silicate containing 5 g/100 ml of Al 2 O 3 and 15 g/100 ml of SiO 2 , whose amount depends on the desired pH value, i.e., 8.0 in the present example, into a stirring gelatinization reaction tank having a temperature of 65° C., maintaining the pH value at 8.0, the reaction lasting for 40 minutes until the completion of the
- HF-3S support Three parts of the HF-3S support were prepared and impregnated respectively two times with the impregnating solutions of HF-6A, HF-6B and HF-6C, wherein the impregnating solutions were the tungsten-nickel solution, the molybdenum-nickel solution, and the tungsten-molybdenum-nickel solution as stated in this Example; the impregnation method involved a first impregnation step, a first drying step at 120° C. for 5 h after the first impregnation, a second impregnation step, a second drying step under the same conditions as the first drying step, and a calcination step at 480° C. for 2 hours.
- the catalysts numbered HF-6A-1, HF-6B-2 and HF-6C-3 were prepared (HF-6A-1, HF-6B-2 and HF-6C-3 are examples outside of the scope of the present invention as comparison examples.
- the catalysts numbered HF-7A, HF-7B and HF-7C were prepared according to the process recited in Example 5, except that the concentrations of the impregnating solutions in Example 5 were adjusted as follows: (1) the tungsten-nickel solution was adjusted to have WO 3 in an amount of 20.8 g/100 ml and NiO in an amount of 3.4 g/100 ml, (2) the molybdenum-nickel solution was adjusted to have MoO 3 in an amount of 21.3 g/100 ml and NiO in an amount of 4.1 g/100 ml, and (3) the tungsten-molybdenum-nickel solution was adjusted to have WO 3 in an amount of 8.4 g/100 ml, MoO 3 in an amount of 12.1 g/100 ml, and NiO in an amount of 4.3 g/100 ml.
- a modified Y molecular sieve (having a silica-alumina molar ratio of 13:1, Na 2 O in an amount of equal to or less than 0.1 wt. %, and infrared acid in an amount of 0.8 mmol/g) in an amount of 5% by weight of the final catalyst mass was used.
- the catalysts numbered HF-8A, HF-8B and HF-8C were prepared according to the process recited in Example 5, except that the impregnating solutions were changed to: (1) a tungsten-nickel solution having WO 3 in an amount of 24.3 g/100 ml and NiO in an amount of 4.0 g/100 ml, (2) a molybdenum-nickel solution having MoO 3 in an amount of 25.3 g/100 ml and NiO in an amount of 5.4 g/100 ml, and (3) a tungsten-molybdenum-nickel solution having WO 3 in an amount of 8.9 g/100 ml, MoO 3 in an amount of 15.4 g/100 ml, and NiO in an amount of 4.9 g/100 ml.
- the evaluation apparatus was a 200 ml small-scale hydrogenation unit, and the catalyst was presulphurized before the activity evaluation.
- the properties of the raw materials and the technological conditions used for evaluating the catalyst activity are listed in Tables 2 and 3, and the comparison results of relative hydrodenitrogenation activity of the catalysts were listed in Table 4.
- middle oil was the mass percentage of the product having a temperature of less than 370° C. relative to the reaction product (aviation kerosene + diesel oil).
- ***FC-30 is a commercial product by Sinopec Group, prepared by a conventional impregnation method.
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US10882028B2 (en) * | 2018-03-14 | 2021-01-05 | Evonik Operations Gmbh | Ni-containing catalyst for the oligomerization of olefins |
CN110833862A (zh) * | 2018-08-16 | 2020-02-25 | 中国石油化工股份有限公司 | 一种缩醛加氢催化剂及其制备方法 |
CN109759124A (zh) * | 2018-12-31 | 2019-05-17 | 中海油天津化工研究设计院有限公司 | 一种抗氮型加氢裂化催化剂载体及其制备方法 |
CN111822036A (zh) * | 2019-04-15 | 2020-10-27 | 中国石油化工股份有限公司 | 加氢裂化催化剂及其制备方法 |
CN111822040A (zh) * | 2019-04-18 | 2020-10-27 | 中国石油化工股份有限公司 | 一种体相加氢裂化催化剂及其制备方法 |
CN115103720A (zh) * | 2020-02-14 | 2022-09-23 | 巴斯夫公司 | 氢化催化剂和其前体以及其在石化树脂的氢化中的用途 |
CN113996308A (zh) * | 2020-07-27 | 2022-02-01 | 中国石油化工股份有限公司 | 一种重油加氢催化剂的制备方法 |
CN114073962A (zh) * | 2020-08-17 | 2022-02-22 | 中国石油化工股份有限公司 | 一种体相加氢催化剂的制备方法 |
CN114453018A (zh) * | 2020-10-21 | 2022-05-10 | 中国石油化工股份有限公司 | 一种加氢裂化催化剂载体和加氢裂化催化剂及其制备方法 |
CN114425360A (zh) * | 2020-10-29 | 2022-05-03 | 中国石油化工股份有限公司 | 一种石蜡加氢精制催化剂及其制备 |
CN114713272A (zh) * | 2021-01-06 | 2022-07-08 | 中国石油天然气股份有限公司 | 一种灵活型加氢裂化催化剂及硫化型加氢裂化催化剂 |
CN116060117A (zh) * | 2021-10-29 | 2023-05-05 | 中国石油化工股份有限公司 | 一种催化柴油加氢裂化催化剂及其制备方法 |
CN115232643A (zh) * | 2022-09-22 | 2022-10-25 | 潍坊弘润石化科技有限公司 | 一种加氢裂化方法 |
Also Published As
Publication number | Publication date |
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CN102310003B (zh) | 2013-10-09 |
KR101851542B1 (ko) | 2018-04-24 |
EP2404667A1 (en) | 2012-01-11 |
KR20120004935A (ko) | 2012-01-13 |
EP2404667B1 (en) | 2019-12-11 |
US20170043323A1 (en) | 2017-02-16 |
US9937485B2 (en) | 2018-04-10 |
DK2404667T3 (da) | 2020-02-03 |
CN102310003A (zh) | 2012-01-11 |
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