WO2022201179A1 - A dispersed hydrotreating catalyst and a process of preparation thereof - Google Patents
A dispersed hydrotreating catalyst and a process of preparation thereof Download PDFInfo
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- WO2022201179A1 WO2022201179A1 PCT/IN2022/050156 IN2022050156W WO2022201179A1 WO 2022201179 A1 WO2022201179 A1 WO 2022201179A1 IN 2022050156 W IN2022050156 W IN 2022050156W WO 2022201179 A1 WO2022201179 A1 WO 2022201179A1
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- WO
- WIPO (PCT)
- Prior art keywords
- acid
- catalyst
- chelating agent
- nickel
- cooh
- Prior art date
Links
- 239000003054 catalyst Substances 0.000 title claims abstract description 104
- 238000000034 method Methods 0.000 title claims abstract description 65
- 230000008569 process Effects 0.000 title claims abstract description 41
- 238000002360 preparation method Methods 0.000 title description 6
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 49
- 238000005470 impregnation Methods 0.000 claims abstract description 42
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 39
- 239000002738 chelating agent Substances 0.000 claims abstract description 37
- 239000007921 spray Substances 0.000 claims abstract description 26
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 24
- 239000011733 molybdenum Substances 0.000 claims abstract description 22
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims abstract description 20
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 20
- 238000011068 loading method Methods 0.000 claims abstract description 15
- 238000004519 manufacturing process Methods 0.000 claims abstract description 15
- 229930195733 hydrocarbon Natural products 0.000 claims abstract description 14
- 150000002430 hydrocarbons Chemical class 0.000 claims abstract description 14
- 239000000446 fuel Substances 0.000 claims abstract description 12
- 239000004215 Carbon black (E152) Substances 0.000 claims abstract description 11
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229910017318 Mo—Ni Inorganic materials 0.000 claims abstract description 5
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 77
- -1 thio phospho amino carboxylic acid Chemical compound 0.000 claims description 21
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims description 18
- MEUIIHOXOWVKNP-UHFFFAOYSA-N phosphanylformic acid Chemical compound OC(P)=O MEUIIHOXOWVKNP-UHFFFAOYSA-N 0.000 claims description 16
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 13
- 239000002253 acid Substances 0.000 claims description 13
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 12
- 229910052717 sulfur Inorganic materials 0.000 claims description 12
- 239000011593 sulfur Substances 0.000 claims description 12
- 238000001035 drying Methods 0.000 claims description 11
- PXRKCOCTEMYUEG-UHFFFAOYSA-N 5-aminoisoindole-1,3-dione Chemical compound NC1=CC=C2C(=O)NC(=O)C2=C1 PXRKCOCTEMYUEG-UHFFFAOYSA-N 0.000 claims description 10
- 239000011964 heteropoly acid Substances 0.000 claims description 10
- MGFYIUFZLHCRTH-UHFFFAOYSA-N nitrilotriacetic acid Chemical compound OC(=O)CN(CC(O)=O)CC(O)=O MGFYIUFZLHCRTH-UHFFFAOYSA-N 0.000 claims description 7
- CKLJMWTZIZZHCS-UHFFFAOYSA-N D-OH-Asp Natural products OC(=O)C(N)CC(O)=O CKLJMWTZIZZHCS-UHFFFAOYSA-N 0.000 claims description 6
- CKLJMWTZIZZHCS-UWTATZPHSA-N L-Aspartic acid Natural products OC(=O)[C@H](N)CC(O)=O CKLJMWTZIZZHCS-UWTATZPHSA-N 0.000 claims description 6
- BZQFBWGGLXLEPQ-UHFFFAOYSA-N O-phosphoryl-L-serine Natural products OC(=O)C(N)COP(O)(O)=O BZQFBWGGLXLEPQ-UHFFFAOYSA-N 0.000 claims description 6
- RRUDCFGSUDOHDG-UHFFFAOYSA-N acetohydroxamic acid Chemical compound CC(O)=NO RRUDCFGSUDOHDG-UHFFFAOYSA-N 0.000 claims description 6
- 229960001171 acetohydroxamic acid Drugs 0.000 claims description 6
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 6
- 229960005261 aspartic acid Drugs 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 6
- 229950006137 dexfosfoserine Drugs 0.000 claims description 6
- 229910000476 molybdenum oxide Inorganic materials 0.000 claims description 6
- 150000007524 organic acids Chemical class 0.000 claims description 6
- PQQKPALAQIIWST-UHFFFAOYSA-N oxomolybdenum Chemical compound [Mo]=O PQQKPALAQIIWST-UHFFFAOYSA-N 0.000 claims description 6
- BZQFBWGGLXLEPQ-REOHCLBHSA-N phosphoserine Chemical compound OC(=O)[C@@H](N)COP(O)(O)=O BZQFBWGGLXLEPQ-REOHCLBHSA-N 0.000 claims description 6
- 239000006185 dispersion Substances 0.000 claims description 5
- 229910000480 nickel oxide Inorganic materials 0.000 claims description 5
- GNRSAWUEBMWBQH-UHFFFAOYSA-N oxonickel Chemical compound [Ni]=O GNRSAWUEBMWBQH-UHFFFAOYSA-N 0.000 claims description 5
- NEAQRZUHTPSBBM-UHFFFAOYSA-N 2-hydroxy-3,3-dimethyl-7-nitro-4h-isoquinolin-1-one Chemical compound C1=C([N+]([O-])=O)C=C2C(=O)N(O)C(C)(C)CC2=C1 NEAQRZUHTPSBBM-UHFFFAOYSA-N 0.000 claims description 4
- KXDHJXZQYSOELW-UHFFFAOYSA-N Carbamic acid Chemical compound NC(O)=O KXDHJXZQYSOELW-UHFFFAOYSA-N 0.000 claims description 4
- 125000000524 functional group Chemical group 0.000 claims description 4
- LGQLOGILCSXPEA-UHFFFAOYSA-L nickel sulfate Chemical compound [Ni+2].[O-]S([O-])(=O)=O LGQLOGILCSXPEA-UHFFFAOYSA-L 0.000 claims description 4
- 229910000363 nickel(II) sulfate Inorganic materials 0.000 claims description 4
- 229910021586 Nickel(II) chloride Inorganic materials 0.000 claims description 3
- MQRWBMAEBQOWAF-UHFFFAOYSA-N acetic acid;nickel Chemical compound [Ni].CC(O)=O.CC(O)=O MQRWBMAEBQOWAF-UHFFFAOYSA-N 0.000 claims description 3
- LFVGISIMTYGQHF-UHFFFAOYSA-N ammonium dihydrogen phosphate Chemical compound [NH4+].OP(O)([O-])=O LFVGISIMTYGQHF-UHFFFAOYSA-N 0.000 claims description 3
- 229910000387 ammonium dihydrogen phosphate Inorganic materials 0.000 claims description 3
- QGAVSDVURUSLQK-UHFFFAOYSA-N ammonium heptamolybdate Chemical compound N.N.N.N.N.N.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.[Mo].[Mo].[Mo].[Mo].[Mo].[Mo].[Mo] QGAVSDVURUSLQK-UHFFFAOYSA-N 0.000 claims description 3
- MNNHAPBLZZVQHP-UHFFFAOYSA-N diammonium hydrogen phosphate Chemical compound [NH4+].[NH4+].OP([O-])([O-])=O MNNHAPBLZZVQHP-UHFFFAOYSA-N 0.000 claims description 3
- 229910000388 diammonium phosphate Inorganic materials 0.000 claims description 3
- 235000019838 diammonium phosphate Nutrition 0.000 claims description 3
- TVZISJTYELEYPI-UHFFFAOYSA-N hypodiphosphoric acid Chemical compound OP(O)(=O)P(O)(O)=O TVZISJTYELEYPI-UHFFFAOYSA-N 0.000 claims description 3
- PDKHNCYLMVRIFV-UHFFFAOYSA-H molybdenum;hexachloride Chemical compound [Cl-].[Cl-].[Cl-].[Cl-].[Cl-].[Cl-].[Mo] PDKHNCYLMVRIFV-UHFFFAOYSA-H 0.000 claims description 3
- 235000019837 monoammonium phosphate Nutrition 0.000 claims description 3
- 229940078494 nickel acetate Drugs 0.000 claims description 3
- QMMRZOWCJAIUJA-UHFFFAOYSA-L nickel dichloride Chemical compound Cl[Ni]Cl QMMRZOWCJAIUJA-UHFFFAOYSA-L 0.000 claims description 3
- 229910000008 nickel(II) carbonate Inorganic materials 0.000 claims description 3
- ZULUUIKRFGGGTL-UHFFFAOYSA-L nickel(ii) carbonate Chemical compound [Ni+2].[O-]C([O-])=O ZULUUIKRFGGGTL-UHFFFAOYSA-L 0.000 claims description 3
- 235000011007 phosphoric acid Nutrition 0.000 claims description 3
- 230000032683 aging Effects 0.000 claims description 2
- SHWZFQPXYGHRKT-FDGPNNRMSA-N (z)-4-hydroxypent-3-en-2-one;nickel Chemical compound [Ni].C\C(O)=C\C(C)=O.C\C(O)=C\C(C)=O SHWZFQPXYGHRKT-FDGPNNRMSA-N 0.000 claims 1
- 229910052751 metal Inorganic materials 0.000 description 21
- 239000002184 metal Substances 0.000 description 21
- 239000002243 precursor Substances 0.000 description 15
- 229910052698 phosphorus Inorganic materials 0.000 description 14
- 239000011574 phosphorus Substances 0.000 description 13
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 11
- 239000000243 solution Substances 0.000 description 10
- 238000001354 calcination Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- 239000000203 mixture Substances 0.000 description 7
- 230000003197 catalytic effect Effects 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 6
- 150000002894 organic compounds Chemical class 0.000 description 6
- 239000000047 product Substances 0.000 description 6
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical class S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 5
- 239000012018 catalyst precursor Substances 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- YTPLMLYBLZKORZ-UHFFFAOYSA-N Thiophene Chemical compound C=1C=CSC=1 YTPLMLYBLZKORZ-UHFFFAOYSA-N 0.000 description 4
- 239000007864 aqueous solution Substances 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 4
- 238000001914 filtration Methods 0.000 description 4
- 238000005755 formation reaction Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Chemical compound OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- 239000007970 homogeneous dispersion Substances 0.000 description 3
- 230000001965 increasing effect Effects 0.000 description 3
- 230000003993 interaction Effects 0.000 description 3
- 229910044991 metal oxide Inorganic materials 0.000 description 3
- 150000004706 metal oxides Chemical class 0.000 description 3
- 150000002739 metals Chemical class 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 229920001542 oligosaccharide Polymers 0.000 description 3
- 239000012071 phase Substances 0.000 description 3
- AMWVZPDSWLOFKA-UHFFFAOYSA-N phosphanylidynemolybdenum Chemical compound [Mo]#P AMWVZPDSWLOFKA-UHFFFAOYSA-N 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- FCEHBMOGCRZNNI-UHFFFAOYSA-N 1-benzothiophene Chemical compound C1=CC=C2SC=CC2=C1 FCEHBMOGCRZNNI-UHFFFAOYSA-N 0.000 description 2
- RGHNJXZEOKUKBD-UHFFFAOYSA-N D-gluconic acid Natural products OCC(O)C(O)C(O)C(O)C(O)=O RGHNJXZEOKUKBD-UHFFFAOYSA-N 0.000 description 2
- RGHNJXZEOKUKBD-SQOUGZDYSA-N Gluconic acid Natural products OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C(O)=O RGHNJXZEOKUKBD-SQOUGZDYSA-N 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- CKQGJVKHBSPKST-UHFFFAOYSA-N [Ni].P#[Mo] Chemical compound [Ni].P#[Mo] CKQGJVKHBSPKST-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 238000007598 dipping method Methods 0.000 description 2
- 238000004821 distillation Methods 0.000 description 2
- 239000000174 gluconic acid Substances 0.000 description 2
- 235000012208 gluconic acid Nutrition 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 150000002751 molybdenum Chemical class 0.000 description 2
- 238000003541 multi-stage reaction Methods 0.000 description 2
- BMGNSKKZFQMGDH-FDGPNNRMSA-L nickel(2+);(z)-4-oxopent-2-en-2-olate Chemical compound [Ni+2].C\C([O-])=C\C(C)=O.C\C([O-])=C\C(C)=O BMGNSKKZFQMGDH-FDGPNNRMSA-L 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000008213 purified water Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000007790 solid phase Substances 0.000 description 2
- 238000009718 spray deposition Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 229930192474 thiophene Natural products 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- 238000002211 ultraviolet spectrum Methods 0.000 description 2
- 235000015112 vegetable and seed oil Nutrition 0.000 description 2
- 239000008158 vegetable oil Substances 0.000 description 2
- LSDPWZHWYPCBBB-UHFFFAOYSA-N Methanethiol Chemical compound SC LSDPWZHWYPCBBB-UHFFFAOYSA-N 0.000 description 1
- HSNVNALJRSJDHT-UHFFFAOYSA-N P(=O)(=O)[Mo] Chemical compound P(=O)(=O)[Mo] HSNVNALJRSJDHT-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 238000003483 aging Methods 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 150000001491 aromatic compounds Chemical class 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000004517 catalytic hydrocracking Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000009918 complex formation Effects 0.000 description 1
- 238000010668 complexation reaction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- HHNHBFLGXIUXCM-GFCCVEGCSA-N cyclohexylbenzene Chemical compound [CH]1CCCC[C@@H]1C1=CC=CC=C1 HHNHBFLGXIUXCM-GFCCVEGCSA-N 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- IYYZUPMFVPLQIF-UHFFFAOYSA-N dibenzothiophene Chemical class C1=CC=C2C3=CC=CC=C3SC2=C1 IYYZUPMFVPLQIF-UHFFFAOYSA-N 0.000 description 1
- 150000002019 disulfides Chemical class 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- DDTIGTPWGISMKL-UHFFFAOYSA-N molybdenum nickel Chemical compound [Ni].[Mo] DDTIGTPWGISMKL-UHFFFAOYSA-N 0.000 description 1
- 238000007040 multi-step synthesis reaction Methods 0.000 description 1
- 150000002815 nickel Chemical class 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 150000002843 nonmetals Chemical class 0.000 description 1
- 238000005839 oxidative dehydrogenation reaction Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910001392 phosphorus oxide Inorganic materials 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000012041 precatalyst Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 239000012266 salt solution Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000011949 solid catalyst Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000005486 sulfidation Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- VSAISIQCTGDGPU-UHFFFAOYSA-N tetraphosphorus hexaoxide Chemical compound O1P(O2)OP3OP1OP2O3 VSAISIQCTGDGPU-UHFFFAOYSA-N 0.000 description 1
- 150000003568 thioethers Chemical class 0.000 description 1
Classifications
-
- 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
- C10G45/00—Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds
- C10G45/02—Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds to eliminate hetero atoms without changing the skeleton of the hydrocarbon involved and without cracking into lower boiling hydrocarbons; Hydrofinishing
- C10G45/04—Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds to eliminate hetero atoms without changing the skeleton of the hydrocarbon involved and without cracking into lower boiling hydrocarbons; Hydrofinishing characterised by the catalyst used
- C10G45/06—Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds to eliminate hetero atoms without changing the skeleton of the hydrocarbon involved and without cracking into lower boiling hydrocarbons; Hydrofinishing characterised by the catalyst used containing nickel or cobalt metal, or compounds thereof
- C10G45/08—Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds to eliminate hetero atoms without changing the skeleton of the hydrocarbon involved and without cracking into lower boiling hydrocarbons; Hydrofinishing characterised by the catalyst used containing nickel or cobalt metal, or compounds thereof in combination with chromium, molybdenum, or tungsten metals, or compounds thereof
-
- 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
- B01J21/02—Boron or aluminium; Oxides or hydroxides thereof
- B01J21/04—Alumina
-
- 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
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- 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
-
- 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
- B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
- B01J27/14—Phosphorus; Compounds thereof
- B01J27/185—Phosphorus; Compounds thereof with iron group metals or platinum group metals
- B01J27/1853—Phosphorus; Compounds thereof with iron group metals or platinum group metals with iron, cobalt or nickel
-
- 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
- B01J37/02—Impregnation, coating or precipitation
- B01J37/0215—Coating
- B01J37/0219—Coating the coating containing organic 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
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/02—Impregnation, coating or precipitation
- B01J37/0215—Coating
- B01J37/0232—Coating by pulverisation
-
- 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
Definitions
- the present invention describes a two-step spray impregnation process for preparing a dispersed hydrotreating catalyst useful in the hydrocarbon fuel refineries.
- the dispersed hydrotreating catalyst is useful for hydrodesulfurization of hydrocarbon fuels like Naphtha, Gasoline and Diesel.
- the two-step process is economic, simple with reduced number of preparation steps and having a catalyst with enhanced homogeneous dispersion of Mo atoms.
- Refining the hydrocarbon fuels from the crude oil involves many steps such as separation, distillation, purification, and removal of elemental impurities such as sulphur, nitrogen, and heavy metals. Further, different process stages require different types of catalysts such as catalyst for cracking of larger chain hydrocarbons into smaller chain hydrocarbons, catalyst for converting vegetable oils into to aviation fuels and catalyst for hydrotreating/hydrodesulphurization of hydrocarbon fuels.
- the conventional hydrotreating/hydrodesulphurization catalysts for diesel are mostly prepared by multistep synthesis approach by impregnation of active metals on the support materials such as g-A1203.
- active metals on the support materials such as g-A1203.
- Such catalysts contain of Mo, W promoted with Ni or Co along with Phosphorous supported on g-A1203.
- Various methodologies, such as controlling promoters, tuning active phase and tailoring the structure of supports (AI2O3) have been utilized to enhance the performance of such Hydrodesulphurization catalyst.
- CN101439292A discloses a catalyst for oxidative dehydrogenation and process of preparing the same.
- the catalyst comprises of main materials and additives; the main materials are the compound material of phosphor molybdenum heteropoly acid alkali metal salt and nickel oxide or the compound material of phosphor molybdenum heteropoly acid alkali soil metal salt and nickel oxide; the contents of the additives account for 0 to 10 percent of the total weight of the solid catalyst.
- CN102600913B discloses a dipping aqueous solution of a catalyst for a hydrotreatment and a method for preparing molybdenum, nickel and phosphorus dipping aqueous solution.
- the method comprises the steps of firstly, preparing a soluble molybdenum, nickel and phosphorus aqueous solution, adding the complex or the organic acid, fully dissolving the complex or the organic acid and then adding residual nickel, and heating till boiling to completely dissolve a mixture.
- CN106732776B discloses a hydrodesulfurization catalyst based on heteropoly acid clusters as precursors.
- the method includes firstly, adding nickel sulfate to a Ba3/2PMo 12040 solution, and then adding phosphomolybdenum heteropoly acid clusters after filtering, and filtering Then take the filtrate to evaporate and crystallize to obtain nickel-molybdenum phosphorous heteropolyacid clusters, which are then formulated into an impregnating solution, and g- alumina support is added for impregnation to obtain the catalyst precursor.
- the precursor is vulcanized in a tube furnace.
- KR1751923B1 discloses a hydrodesulfurization catalyst and a method for manufacturing the same.
- D4 further discloses a catalyst disposes a crystal of a metal oxide containing nickel- molybdenum-phosphorus as an active component in an alumina support.
- step 1 molybdenum (Mo) precursor compound and phosphoric acid (H3P04) are added to the purified water and stirred at 110 to 150°C, followed by filtration at 40 to 70°C, followed by distillation under reduced pressure to crystallize the molybdenum- phosphorus-containing metal oxide crystals prepared in step ii) and nickel (Ni) precursor compound to purified water, stirring the mixture at 70 to 100°C, filtering at 40 to 70°C, and then crystallizing the nickel-molybdenum -phosphorus to form a crystal of a metal oxide having a compositional ratio of the following formula (1).
- Mo molybdenum
- H3P04 phosphoric acid
- US20200290025 discloses a hydrotreatment catalysts and a process for preparing said catalysts advantageously usable in the hydrotreatment processes, for example in hydrodesulphurization, hydrodenitrogenation, hydrodearomatization processes of hydrocarbons.
- the said process comprises steps of mixing at least one soluble source of W and at least one soluble source of Mo into a suitable volume of water, until obtaining a clear aqueous solution.
- adding at least one source of at least one element Me to the solution obtained in step 1.
- adding at least one source of Ni to the mixture obtained in the previous step.
- step 4 adding to the mixture obtained in step 4, at least one soluble, hydrolysable or dispersible source of Al, and at least one polymer organic compound.
- a second heat treatment at temperatures comprised between 80° C. and 95° C., under stirring, obtaining a suspension.
- calcining said solid phase obtained in the previous step obtaining the mixed oxide of formula (I).
- the present invention further relates to said hydrotreatment catalysts and a hydrotreatment process wherein said catalysts are used.
- US10058852B2 discloses a hydrotreatment catalyst comprising an alumina-based support, at least one metal from group VIB, at least one metal from group VIII and phosphorus.
- the said catalyst is prepared by impregnation of the metals from group VIB, group VIII and phosphorus onto the support in order to obtain an impregnated catalyst precursor, then drying said impregnated catalyst precursor at a temperature of less than 200°C and without subsequent calcining. Then impregnating the dry catalyst as obtained with an impregnation solution comprising at least one organic compound containing oxygen and/or nitrogen in order to obtain a doped catalyst precursor. Optionally, allowing the doped catalyst precursor as obtained to mature.
- US10118160B2 discloses a process for preparing a hydrotreating catalyst comprising of from 5 wt% to 50 wt% of molybdenum of from 0.5 wt% to 20 wt% of nickel and of from 0 to 5 wt % of phosphorus, all based on total dry weight of catalyst.
- the process comprises impregnating an alumina carrier with an impregnation solution, consisting essentially of a phosphorus compound, a molybdenum component, a nickel component, and gluconic acid that is present in the impregnation solution in such an amount to provide a ratio of weight of gluconic acid to the total weight of nickel and molybdenum of from 0.1 to 5, and a phosphorus compound, to thereby provide an impregnated carrier. Then drying the impregnated carrier at a temperature of from 40°C to 200°C followed by calcining the impregnated carrier at a temperature of from 200°C to 650° C to obtain a calcined impregnated carrier. And sulphiding the calcined impregnated carrier to obtain the hydrotreating catalyst.
- an impregnation solution consisting essentially of a phosphorus compound, a molybdenum component, a nickel component, and gluconic acid that is present in the impregnation
- US9321041B2 discloses a process for preparing a catalyst comprising at least one metal from group VIII, at least one metal from group VIB and at least one support formed from at least one oxide.
- the said process comprising at least one step for bringing at least one pre-catalyst comprising at least said metal from group VIII, at least said metal from group VIB and at least said support into contact with at least one organic compound formed from at least one cyclic oligosaccharide composed of at least 6 a-(l,4)-bonded glucopyranose subunits.
- At least one first step for bringing at least said support into contact with at least one organic compound formed from at least one cyclic oligosaccharide composed of at least 6 a-(l,4)- bonded glucopyranose subunits followed by at least one second step for bringing the solid derived from said first step into contact with at least one precursor of at least said metal from group VIII and at least one precursor of at least said metal from group VIB.
- the process also includes at least one drying step, and at least one heat treatment step to decompose said organic compound.
- IN202041005951 discloses a hydrodesulfurization (HDS) catalyst and aprocess for preparing the said catalyst, the process comprises (a) impregnating a phosphorus oxide precursor on at least one porous support, followed by drying and calcination to obtain a first precursor; (b) dispersing a molybdenum oxide precursor on the first metal precursor in presence of at least one chelating agent, followed by ageing, drying, and calcination to obtain a second precursor; and (c) impregnating a nickel oxide precursor on the second precursor in the presence of at least one chelating agent, followed by drying to obtain the catalyst.
- HDS hydrodesulfurization
- the objective of the present invention is to provide simple two-step spray impregnation process for preparing a catalyst for hydrotreating/hydrodesulfurization of hydrocarbon fuels.
- the main objective of the present invention is two-step spray impregnation process for preparing an improved nickel-molybdenum-phosphorus-alumina catalyst suitable for hydrogenating reactions.
- the specific objective of the present invention is to provide a dispersed hydrotreating catalyst having enhanced catalytic activity due to enhanced homogeneous dispersion of active metal atoms on the catalytic support.
- the present invention discloses a two-step process for preparing a catalyst useful in the hydrocarbon fuel refineries.
- the catalyst is useful for hydrotreating/hydrodesulfurization of hydrocarbon fuels.
- the process comprising a first step of preparing a P-Mo-Alumina complex by loading molybdenum and phosphorus on a calcined alumina support. The loading of molybdenum and phosphorus is done along with at least one chelating agent.
- the said P-Mo- Alumina complex is aged at ambient room conditions for 1-5 hours and dried at 90°C. Then the said P-Mo-Alumina complex is calcined at 500°C.
- the molybdenum is selected from one of an ammonium heptamolybdate, molybdophosphic acid, molybdenum oxide, molybdenum chloride, or a combination thereof.
- the phosphorus is selected from phosphoric acid, diammonium hydrogen phosphate, ammonium dihydrogen phosphate, hypophosphoric acid, or a combination thereof.
- the said process comprises a second step of preparing a P-Mo-Ni loaded alumina by loading a Nickel (Ni) along with at least one chelating agent on the said P-Mo-Alumina complex, and then drying to get the said final catalyst.
- the Nickel (Ni) is selected from Nickel acetate, nickel sulfate, nickel acetylacetonate, nickel chloride, nickel carbonate, or a combination thereof.
- Figure 1 illustrates the H2-TPR of two different types of catalysts prepared by two different process.
- Figure 2 illustrates the UV spectra of three different types of catalysts each prepared by using different process steps.
- active metal and non-metals which includes Ni, Mo and P are loaded on the alumina support.
- the novel two-step process is invented for loading these metals on the alumina support.
- the present invention provides a two-step process for preparing a catalyst useful for hydrotreating/hydrodesulfurization of hydrocarbon fuels.
- the process comprising a first step of preparing a P-Mo-Alumina complex by loading molybdenum and phosphorus on a calcined alumina support. The loading of molybdenum and phosphorus is done along with at least one chelating agent. Then the said P-Mo-Alumina complex is aged at ambient room conditions for 1-5 hours and dried at 90°C. Finally, the said P-Mo-Alumina complex is calcined at 500°C.
- the molybdenum is selected from one of ammonium heptamolybdate, molybdophosphic acid, molybdenum oxide, molybdenum chloride, or a combination thereof.
- the phosphorus is selected from phosphoric acid, diammonium hydrogen phosphate, ammonium dihydrogen phosphate, hypophosphoric acid, or a combination thereof.
- the said process comprises a second step of preparing a P-Mo-Ni loaded alumina by loading a Nickel (Ni) along with at least one chelating agent on the said P-Mo-Alumina complex, and then drying to get the said final catalyst.
- the Nickel (Ni) is selected from Nickel acetate, nickel sulfate, nickel acetylacetonate, nickel chloride, nickel carbonate, or a combination thereof.
- the present invention disclosed a novel two-step process for preparing a dispersed hydrotreating catalyst.
- the said process comprising two-step spray impregnation process/technique.
- a first spray solution is prepared by mixing a phosphoric acid with a molybdenum salt.
- the mixing of the phosphoric acid with molybdenum salt results in the formation of heteropoly acid structures (Dawson or Keggin structures).
- at least one chelating agent is added in the said first spray solution.
- the addition of at least one chelating agent along with these heteropoly acid structures stabilizes the heteropoly acid complex formation during impregnation which apparently enhances the uniform dispersion of Molybdenum (Mo) and Phosphorous (P).
- the first impregnation step includes spray loading of the first spray solution on a calcined alumina support at pH of 5-5.2 to get a Phosphorous-Molybdenum (P-Mo) loaded Alumina complex.
- the obtained material is aged at room temperature and dried at 90°C.
- the obtained final material is calcined at 500°C.
- a nickel salt solution along with at least one chelating agent is deposited on the said Phosphorous-Molybdenum (P-Mo) loaded alumina complex.
- P-Mo Phosphorous-Molybdenum
- the at least one chelating agent is selected from acid group having Citric acid (CA), Nitrilo triacetic acid (NTA), Phosphino carboxylic acid, phospho serine, Aceto hydroxamic acid, thio L- aspartic acid, or a combination thereof.
- the at least one chelating agent is selected from the Citric acid (CA), or a combination of Citric acid (CA) with at least one acid selected from Nitrilo triacetic acid (NTA), Phosphino carboxylic acid, phospho serine, Aceto hydroxamic acid, thio L-aspartic acid, or a combination thereof.
- Citric acid Citric acid
- CA Citric acid
- NTA Nitrilo triacetic acid
- Phosphino carboxylic acid Phosphino carboxylic acid
- phospho serine phospho serine
- Aceto hydroxamic acid thio L-aspartic acid
- the present invention provides a dispersed hydrotreating catalyst having phosphorous oxide in the range of 4-9 weight percentage, molybdenum oxide in the range of 10-30 weight percentage, nickel oxide in the range of 1-8 weight percentage, at least one chelating agent in the range of 0.5-5 weight percentage; and A1203 support in the range of 40-65 weight percentage.
- the said hydrotreating catalyst results 4ppm-9ppm product sulfur from a hydrocarbon feed having 20000 ppm sulfur content.
- novel two-step process of the present invention can be applied for the synthesis of hydrodesulphurization catalysts, hydrotreating catalysts, hydrodeoxygenation catalysts and hydrocracking catalysts for various refinery applications. Furthermore, the novel two-step process of the present invention can be applied to prepare catalysts for the vegetable oil conversion to aviation fuels.
- the present invention enhances the usefulness of the dispersed hydrotreating catalyst as prepared by increasing its catalytic activity due to uniform dispersion of Molybdenum (Mo) and Phosphorous (P).
- Mo Molybdenum
- P Phosphorous
- the Fig. 1 illustrates the H2-TPR of two different types of catalysts prepared by two different process.
- the curve (i) indicates catalyst prepared using three step spray deposition (as disclosed in IN202041005951) and curve (ii) indicates catalyst as prepared using current invention using two-step spray deposition/ impregnation.
- the Tmax reduction temperature of catalysts are in the order i.e., (i) > (ii). It is evident from figure 1 that catalysts as prepared with two step spray impregnation technique having chelating agents selected from a combination of Citric acid (CA) and Nitrilo triacetic acid (NTA) forms M0S2 at lower temperature during sulfidation when compared to other three step spray impregnation techniques. Because of strong interaction between active phase and support for multiple impregnation technique, the M0S2 formation slows down and shits to higher temperature which eventually affects the M0S2 dispersion in the final catalysts.
- CA Citric acid
- NTA Nitri
- Fig. 2 illustrates the UV spectra of three different types of catalysts each prepared by using different process steps.
- curve (i) indicates catalyst prepared by three step wet impregnation (as disclosed in IN202041005951).
- the curve (ii) indicates catalyst prepared by two-step impregnation technique as provided in the present invention having citric acid as chelating agent.
- the curve (iii) indicates catalyst prepared by two step impregnation technique as provided in the present invention having citric acid and phosphino carboxylic acid as chelating agents.
- the key reaction is desulphurization of sulfur containing molecules. Mercaptans, sulfides and disulfides react easily with hydrogen and produces corresponding saturated or aromatic compounds. When the sulfur is combined into cycles of aromatic structure, like thiophene, benzothiphene, dibenzothiophenes is more difficult to eliminate. These reactions are exothermic in nature and they produce hydrogen sulphide and consume hydrogen.
- the below Table 1 illustrates the comparative performance study of three different types of catalysts each prepared by using different process steps.
- the first catalyst is prepared by conventional three step wet impregnation.
- the second catalyst is prepared by two step impregnation technique as provided in the present invention having Citric acid as chelating agent.
- the third catalyst is prepared by two step impregnation technique as provided in the present invention having citric acid and phosphino carboxylic acid as chelating agents.
- the Table 1 indicates that the first catalyst as prepared by conventional three step wet impregnation have higher product sulfur i.e., 15 ppm.
- the second catalyst which is prepared by two step impregnation technique as provided in the present invention having Citric acid as chelating agent have low product sulfur i.e., 9 ppm which is much less when compared to the first catalyst.
- the third catalyst which is prepared by two step impregnation technique as provided in the present invention having citric acid and phosphino carboxylic acid as chelating agents have much lower product sulfur i.e., 4 ppm when compared to the first catalyst and the second catalyst.
- the second and third catalyst have much lower product sulfur content as compared to the catalyst prepared by conventional three step wet impregnation technique.
- Table 2 illustrates the time on stream study of catalysts as prepared through two step impregnation technique as provided in the present invention by using citric acid and phosphino carboxylic acid as chelating agents.
- the Table 2 indicates that at 50 hours time on stream studies, the product Sulfur is 4ppm by using the catalyst which is prepared by two step impregnation technique as provided in the present invention having citric acid and phosphino carboxylic acid as chelating agent.
- the hydrotreating/hydrodesulfurization catalyst as prepared by the novel two-step process of the present invention provides many advantages over the hydrotreating catalyst as prepared through conventional multistep process. Firstly, reduces the number of preparation steps and the spraying of heteropoly acid structural components on alumina surface enhances the homogeneous dispersion of Molybdenum (Mo) atoms during the calcination step.
- Mo Molybdenum
- the spray loading of Nickel along with complexation agents and uncalcined final catalyst can slows down the formation of N1S2 and apparently M0S2 forms first followed by nickel substitution at edges. Thus, this provides more active metal sites and thus enhanced catalytic activity.
- the present invention decreases the interaction between Nickel (Ni), Molybdenum (Mo) and Alumina which is evident in temperature programmed reduction.
- this interaction between support and active phase is less with the present spray impregnation along with chelating agent combination.
- the proportion of Heptamolybdate species on the catalyst can be increased by preparing a catalyst through the two-step spray impregnation technique as disclosed in the present invention.
Abstract
The present invention discloses a two-step spray impregnation process for preparing a dispersed hydrotreating catalyst for hydrodesulfurization of hydrocarbon fuels. The said process includes a first impregnation step of preparing a P-Mo-Alumina complex by loading a first spray solution on a calcined alumina support, wherein, the first spray solution comprises Molybdenum (Mo), Phosphorous (P) and at least one chelating agent. Further, the said process includes a second impregnation step of preparing a P-Mo-Ni loaded alumina by loading a second spray solution on the said P-Mo-Alumina complex, wherein, the said second spray solution comprises Nickel (Ni) and at least one chelating agent.
Description
A DISPERSED HYDROTREATING CATALYST AND A PROCESS OF PREPARATION THEREOF
FIELD OF THE INVENTION:
The present invention describes a two-step spray impregnation process for preparing a dispersed hydrotreating catalyst useful in the hydrocarbon fuel refineries. The dispersed hydrotreating catalyst is useful for hydrodesulfurization of hydrocarbon fuels like Naphtha, Gasoline and Diesel. The two-step process is economic, simple with reduced number of preparation steps and having a catalyst with enhanced homogeneous dispersion of Mo atoms.
BACKGROUND OF THE INVENTION:
Refining the hydrocarbon fuels from the crude oil involves many steps such as separation, distillation, purification, and removal of elemental impurities such as sulphur, nitrogen, and heavy metals. Further, different process stages require different types of catalysts such as catalyst for cracking of larger chain hydrocarbons into smaller chain hydrocarbons, catalyst for converting vegetable oils into to aviation fuels and catalyst for hydrotreating/hydrodesulphurization of hydrocarbon fuels.
The conventional hydrotreating/hydrodesulphurization catalysts for diesel are mostly prepared by multistep synthesis approach by impregnation of active metals on the support materials such as g-A1203. Mostly, such catalysts contain of Mo, W promoted with Ni or Co along with Phosphorous supported on g-A1203. Various methodologies, such as controlling promoters, tuning active phase and tailoring the structure of supports (AI2O3) have been utilized to enhance the performance of such Hydrodesulphurization catalyst. Some of the known state of the art catalyst as used in the hydrotreating/hydrodesulphurization are explained hereinbelow.
CN101439292A discloses a catalyst for oxidative dehydrogenation and process of preparing the same. The catalyst comprises of main materials and additives; the main materials are the compound material of phosphor molybdenum heteropoly acid alkali metal salt and nickel oxide or the compound material of phosphor molybdenum heteropoly acid alkali soil metal salt and nickel oxide; the contents of the additives account for 0 to 10 percent of the total weight of the solid catalyst.
CN102600913B discloses a dipping aqueous solution of a catalyst for a hydrotreatment and a method for preparing molybdenum, nickel and phosphorus dipping aqueous solution. The method comprises the steps of firstly, preparing a soluble molybdenum, nickel and phosphorus
aqueous solution, adding the complex or the organic acid, fully dissolving the complex or the organic acid and then adding residual nickel, and heating till boiling to completely dissolve a mixture.
CN106732776B discloses a hydrodesulfurization catalyst based on heteropoly acid clusters as precursors. The method includes firstly, adding nickel sulfate to a Ba3/2PMo 12040 solution, and then adding phosphomolybdenum heteropoly acid clusters after filtering, and filtering Then take the filtrate to evaporate and crystallize to obtain nickel-molybdenum phosphorous heteropolyacid clusters, which are then formulated into an impregnating solution, and g- alumina support is added for impregnation to obtain the catalyst precursor. The precursor is vulcanized in a tube furnace.
KR1751923B1 discloses a hydrodesulfurization catalyst and a method for manufacturing the same. D4 further discloses a catalyst disposes a crystal of a metal oxide containing nickel- molybdenum-phosphorus as an active component in an alumina support. D4 further discloses steps of preparation, in step 1 molybdenum (Mo) precursor compound and phosphoric acid (H3P04) are added to the purified water and stirred at 110 to 150°C, followed by filtration at 40 to 70°C, followed by distillation under reduced pressure to crystallize the molybdenum- phosphorus-containing metal oxide crystals prepared in step ii) and nickel (Ni) precursor compound to purified water, stirring the mixture at 70 to 100°C, filtering at 40 to 70°C, and then crystallizing the nickel-molybdenum -phosphorus to form a crystal of a metal oxide having a compositional ratio of the following formula (1).
US20200290025 discloses a hydrotreatment catalysts and a process for preparing said catalysts advantageously usable in the hydrotreatment processes, for example in hydrodesulphurization, hydrodenitrogenation, hydrodearomatization processes of hydrocarbons. The said process comprises steps of mixing at least one soluble source of W and at least one soluble source of Mo into a suitable volume of water, until obtaining a clear aqueous solution. Then optionally, adding at least one source of at least one element Me to the solution obtained in step 1. Then adding at least one source of Ni to the mixture obtained in the previous step. Then subjecting the mixture obtained in step 3 to a first heat treatment at temperatures comprised between 50° and 80° C., under stirring. Then adding to the mixture obtained in step 4, at least one soluble, hydrolysable or dispersible source of Al, and at least one polymer organic compound. Subjecting the mixture obtained in the previous step to a second heat treatment at temperatures comprised between 80° C. and 95° C., under stirring, obtaining a suspension. Subjecting the
suspension obtained in step 6 to drying, obtaining in such a way a solid phase. Finally, calcining said solid phase obtained in the previous step, obtaining the mixed oxide of formula (I). The present invention further relates to said hydrotreatment catalysts and a hydrotreatment process wherein said catalysts are used.
US10058852B2 discloses a hydrotreatment catalyst comprising an alumina-based support, at least one metal from group VIB, at least one metal from group VIII and phosphorus. The said catalyst is prepared by impregnation of the metals from group VIB, group VIII and phosphorus onto the support in order to obtain an impregnated catalyst precursor, then drying said impregnated catalyst precursor at a temperature of less than 200°C and without subsequent calcining. Then impregnating the dry catalyst as obtained with an impregnation solution comprising at least one organic compound containing oxygen and/or nitrogen in order to obtain a doped catalyst precursor. Optionally, allowing the doped catalyst precursor as obtained to mature.
US10118160B2 discloses a process for preparing a hydrotreating catalyst comprising of from 5 wt% to 50 wt% of molybdenum of from 0.5 wt% to 20 wt% of nickel and of from 0 to 5 wt % of phosphorus, all based on total dry weight of catalyst. The process comprises impregnating an alumina carrier with an impregnation solution, consisting essentially of a phosphorus compound, a molybdenum component, a nickel component, and gluconic acid that is present in the impregnation solution in such an amount to provide a ratio of weight of gluconic acid to the total weight of nickel and molybdenum of from 0.1 to 5, and a phosphorus compound, to thereby provide an impregnated carrier. Then drying the impregnated carrier at a temperature of from 40°C to 200°C followed by calcining the impregnated carrier at a temperature of from 200°C to 650° C to obtain a calcined impregnated carrier. And sulphiding the calcined impregnated carrier to obtain the hydrotreating catalyst.
US9321041B2 discloses a process for preparing a catalyst comprising at least one metal from group VIII, at least one metal from group VIB and at least one support formed from at least one oxide. The said process comprising at least one step for bringing at least one pre-catalyst comprising at least said metal from group VIII, at least said metal from group VIB and at least said support into contact with at least one organic compound formed from at least one cyclic oligosaccharide composed of at least 6 a-(l,4)-bonded glucopyranose subunits. Then at least one step for bringing at least said support into contact with at least one solution containing at least one precursor of at least said metal from group VIII, at least one precursor of at least said
metal from group VIB and at least one organic compound formed from at least one cyclic oligosaccharide composed of at least 6 a-(l,4)-bonded glucopyranose subunits. Thereafter, at least one first step for bringing at least said support into contact with at least one organic compound formed from at least one cyclic oligosaccharide composed of at least 6 a-(l,4)- bonded glucopyranose subunits followed by at least one second step for bringing the solid derived from said first step into contact with at least one precursor of at least said metal from group VIII and at least one precursor of at least said metal from group VIB. Further, the process also includes at least one drying step, and at least one heat treatment step to decompose said organic compound.
IN202041005951 discloses a hydrodesulfurization (HDS) catalyst and aprocess for preparing the said catalyst, the process comprises (a) impregnating a phosphorus oxide precursor on at least one porous support, followed by drying and calcination to obtain a first precursor; (b) dispersing a molybdenum oxide precursor on the first metal precursor in presence of at least one chelating agent, followed by ageing, drying, and calcination to obtain a second precursor; and (c) impregnating a nickel oxide precursor on the second precursor in the presence of at least one chelating agent, followed by drying to obtain the catalyst.
From the state of the art, it is observed that the hydrotreating/hydrodesulphurization catalyst preparation involves multistep reaction processes. Such multistep reaction processes are time consuming, requires many costly reagents and thus increases the overall cost of the catalysts.
Further, it is also observed that there is continuous improvement in hydrotreating/hydrodesulphurization catalysts with respect to enhancing their catalytic properties by providing more active metal sites.
Further, it is also observed that for industrial scale production of hydrotreating/hydrodesulphurization catalyst, the production steps should be simple and less time consuming.
Accordingly, for industrial scale production of hydrotreating catalyst, there is a requirement for preparing a hydrotreating catalyst with minimum process steps and having a catalyst with enhanced active metal dispersion.
OBJECTIVE OF THE PRESENT INVENTION:
The objective of the present invention is to provide simple two-step spray impregnation process for preparing a catalyst for hydrotreating/hydrodesulfurization of hydrocarbon fuels.
The main objective of the present invention is two-step spray impregnation process for preparing an improved nickel-molybdenum-phosphorus-alumina catalyst suitable for hydrogenating reactions.
The specific objective of the present invention is to provide a dispersed hydrotreating catalyst having enhanced catalytic activity due to enhanced homogeneous dispersion of active metal atoms on the catalytic support.
SUMMARY OF THE INVENTION:
The present invention discloses a two-step process for preparing a catalyst useful in the hydrocarbon fuel refineries. The catalyst is useful for hydrotreating/hydrodesulfurization of hydrocarbon fuels. The process comprising a first step of preparing a P-Mo-Alumina complex by loading molybdenum and phosphorus on a calcined alumina support. The loading of molybdenum and phosphorus is done along with at least one chelating agent. The said P-Mo- Alumina complex is aged at ambient room conditions for 1-5 hours and dried at 90°C. Then the said P-Mo-Alumina complex is calcined at 500°C.
The molybdenum is selected from one of an ammonium heptamolybdate, molybdophosphic acid, molybdenum oxide, molybdenum chloride, or a combination thereof. The phosphorus is selected from phosphoric acid, diammonium hydrogen phosphate, ammonium dihydrogen phosphate, hypophosphoric acid, or a combination thereof.
Further, the said process comprises a second step of preparing a P-Mo-Ni loaded alumina by loading a Nickel (Ni) along with at least one chelating agent on the said P-Mo-Alumina complex, and then drying to get the said final catalyst. The Nickel (Ni) is selected from Nickel acetate, nickel sulfate, nickel acetylacetonate, nickel chloride, nickel carbonate, or a combination thereof.
Further, the at least one chelating agent is selected from an organic acid having -COOH functional group, amino carboxylic acid -NH2-COOH, phosphino carboxylic acid -P04- COOH, thio phospho amino carboxylic acid -SH-NH2-COOH, hydroxamic acid -NOH-C=0 or thio amino carboxylic acid -SH-NH2-COOH, or a combination thereof.
DESCRIPTION OF THE DRAWINGS:
To further clarify advantages and aspects of the invention, a more particular description of the invention will be rendered by reference to specific embodiments thereof, which is illustrated in the appended drawing(s). It is appreciated that the drawing(s) of the present invention depicts only typical embodiments of the invention and are therefore not to be considered limiting of its scope.
Figure 1 : illustrates the H2-TPR of two different types of catalysts prepared by two different process.
Figure 2: illustrates the UV spectra of three different types of catalysts each prepared by using different process steps.
DETAILED DESCRIPTION OF THE INVENTION:
For promoting an understanding of the principles of the present disclosure, reference will now be made to the specific embodiments of the present invention further illustrated in the drawings and specific language will be used to describe the same. The foregoing general description and the following detailed description are explanatory of the present disclosure and are not intended to be restrictive thereof. It will nevertheless be understood that no limitation of the scope of the present disclosure is thereby intended, such alterations and further modifications in the illustrated composition, and such further applications of the principles of the present disclosure as illustrated herein being contemplated as would normally occur to one skilled in the art to which the present disclosure relates. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinarily skilled in the art to which this present disclosure belongs. The methods, and examples provided herein are illustrative only and not intended to be limiting.
In the present invention, active metal and non-metals which includes Ni, Mo and P are loaded on the alumina support. The novel two-step process is invented for loading these metals on the alumina support.
The present invention provides a two-step process for preparing a catalyst useful for hydrotreating/hydrodesulfurization of hydrocarbon fuels. The process comprising a first step of preparing a P-Mo-Alumina complex by loading molybdenum and phosphorus on a calcined alumina support. The loading of molybdenum and phosphorus is done along with at least one chelating agent.
Then the said P-Mo-Alumina complex is aged at ambient room conditions for 1-5 hours and dried at 90°C. Finally, the said P-Mo-Alumina complex is calcined at 500°C.
The molybdenum is selected from one of ammonium heptamolybdate, molybdophosphic acid, molybdenum oxide, molybdenum chloride, or a combination thereof. The phosphorus is selected from phosphoric acid, diammonium hydrogen phosphate, ammonium dihydrogen phosphate, hypophosphoric acid, or a combination thereof.
Further, the said process comprises a second step of preparing a P-Mo-Ni loaded alumina by loading a Nickel (Ni) along with at least one chelating agent on the said P-Mo-Alumina complex, and then drying to get the said final catalyst. The Nickel (Ni) is selected from Nickel acetate, nickel sulfate, nickel acetylacetonate, nickel chloride, nickel carbonate, or a combination thereof.
The at least one chelating agent is selected from an organic acid having -COOH functional group, amino carboxylic acid -NH2-COOH, phosphino carboxylic acid -P04-COOH, thio phospho amino carboxylic acid -SH-NH2-COOH, hydroxamic acid -NOH-C=0 or thio amino carboxylic acid -SH-NH2-COOH, or a combination thereof.
Specifically, the present invention disclosed a novel two-step process for preparing a dispersed hydrotreating catalyst. The said process comprising two-step spray impregnation process/technique. In the first impregnation step, a first spray solution is prepared by mixing a phosphoric acid with a molybdenum salt. The mixing of the phosphoric acid with molybdenum salt results in the formation of heteropoly acid structures (Dawson or Keggin structures). Further, at least one chelating agent is added in the said first spray solution. Wherein, the addition of at least one chelating agent along with these heteropoly acid structures stabilizes the heteropoly acid complex formation during impregnation which apparently enhances the uniform dispersion of Molybdenum (Mo) and Phosphorous (P). Further, the first impregnation step includes spray loading of the first spray solution on a calcined alumina support at pH of 5-5.2 to get a Phosphorous-Molybdenum (P-Mo) loaded Alumina complex. The obtained material is aged at room temperature and dried at 90°C. The obtained final material is calcined at 500°C.
In the second impregnation step, a nickel salt solution along with at least one chelating agent is deposited on the said Phosphorous-Molybdenum (P-Mo) loaded alumina complex. After
loading nickel (Ni) along with chelating agents, the final dispersed hydrotreating catalyst is only dried with avoiding final calcination step.
Specifically, the at least one chelating agent is selected from acid group having Citric acid (CA), Nitrilo triacetic acid (NTA), Phosphino carboxylic acid, phospho serine, Aceto hydroxamic acid, thio L- aspartic acid, or a combination thereof.
More specifically, the at least one chelating agent is selected from the Citric acid (CA), or a combination of Citric acid (CA) with at least one acid selected from Nitrilo triacetic acid (NTA), Phosphino carboxylic acid, phospho serine, Aceto hydroxamic acid, thio L-aspartic acid, or a combination thereof.
Further, the present invention provides a dispersed hydrotreating catalyst having phosphorous oxide in the range of 4-9 weight percentage, molybdenum oxide in the range of 10-30 weight percentage, nickel oxide in the range of 1-8 weight percentage, at least one chelating agent in the range of 0.5-5 weight percentage; and A1203 support in the range of 40-65 weight percentage. Wherein, the said hydrotreating catalyst results 4ppm-9ppm product sulfur from a hydrocarbon feed having 20000 ppm sulfur content.
Further, the novel two-step process of the present invention can be applied for the synthesis of hydrodesulphurization catalysts, hydrotreating catalysts, hydrodeoxygenation catalysts and hydrocracking catalysts for various refinery applications. Furthermore, the novel two-step process of the present invention can be applied to prepare catalysts for the vegetable oil conversion to aviation fuels.
The present invention enhances the usefulness of the dispersed hydrotreating catalyst as prepared by increasing its catalytic activity due to uniform dispersion of Molybdenum (Mo) and Phosphorous (P). Thus, the active metal centres are relatively high when compared to the known prior art catalyst, thus this leads to the increased catalytic activity.
Experimental Results:
The Fig. 1 illustrates the H2-TPR of two different types of catalysts prepared by two different process. Wherein the curve (i) indicates catalyst prepared using three step spray deposition (as disclosed in IN202041005951) and curve (ii) indicates catalyst as prepared using current invention using two-step spray deposition/ impregnation. Wherein, the Tmax reduction temperature of catalysts are in the order i.e., (i) > (ii).
It is evident from figure 1 that catalysts as prepared with two step spray impregnation technique having chelating agents selected from a combination of Citric acid (CA) and Nitrilo triacetic acid (NTA) forms M0S2 at lower temperature during sulfidation when compared to other three step spray impregnation techniques. Because of strong interaction between active phase and support for multiple impregnation technique, the M0S2 formation slows down and shits to higher temperature which eventually affects the M0S2 dispersion in the final catalysts.
The Fig. 2 illustrates the UV spectra of three different types of catalysts each prepared by using different process steps. Wherein, curve (i) indicates catalyst prepared by three step wet impregnation (as disclosed in IN202041005951).
The curve (ii) indicates catalyst prepared by two-step impregnation technique as provided in the present invention having citric acid as chelating agent. The curve (iii) indicates catalyst prepared by two step impregnation technique as provided in the present invention having citric acid and phosphino carboxylic acid as chelating agents.
It is evident from figure 2 that more amount of heptamolybdate [Mq7q24]6 formations in case of two step spray impregnation with citric acid and phosphino carboxylic acid.
Reaction Results:
The key reaction is desulphurization of sulfur containing molecules. Mercaptans, sulfides and disulfides react easily with hydrogen and produces corresponding saturated or aromatic compounds. When the sulfur is combined into cycles of aromatic structure, like thiophene, benzothiphene, dibenzothiophenes is more difficult to eliminate. These reactions are exothermic in nature and they produce hydrogen sulphide and consume hydrogen.
Reaction Example:
R-SH (Mercaptan) + H 2 - ► R-H + H2S
Thiophene + 4H2 - ► C4H10 + H2S
Benzothiophene + 5 Fh - ► Cyclohexyl Benzene + H2S
The below Table 1 illustrates the comparative performance study of three different types of catalysts each prepared by using different process steps. Wherein, the first catalyst is prepared by conventional three step wet impregnation. The second catalyst is prepared by two step impregnation technique as provided in the present invention having Citric acid as chelating
agent. The third catalyst is prepared by two step impregnation technique as provided in the present invention having citric acid and phosphino carboxylic acid as chelating agents.
Table 1
Operating conditions (WHSV: 1.0 hr-1, 330°C, H2/HC: 575 Nm3/m3, P: 80 Bar, Sulfur in Diesel feed- 20000 ppm.
The Table 1 indicates that the first catalyst as prepared by conventional three step wet impregnation have higher product sulfur i.e., 15 ppm. The second catalyst which is prepared by two step impregnation technique as provided in the present invention having Citric acid as chelating agent have low product sulfur i.e., 9 ppm which is much less when compared to the first catalyst. The third catalyst which is prepared by two step impregnation technique as provided in the present invention having citric acid and phosphino carboxylic acid as chelating agents have much lower product sulfur i.e., 4 ppm when compared to the first catalyst and the second catalyst. Hence, the second and third catalyst have much lower product sulfur content as compared to the catalyst prepared by conventional three step wet impregnation technique.
The below Table 2 illustrates the time on stream study of catalysts as prepared through two step impregnation technique as provided in the present invention by using citric acid and phosphino carboxylic acid as chelating agents.
*Operating conditions are, WHSV: 1.0 hr-1, H2/HC: 575 Nm3/m3, P: 80 Bar.
The Table 2 indicates that at 50 hours time on stream studies, the product Sulfur is 4ppm by using the catalyst which is prepared by two step impregnation technique as provided in the present invention having citric acid and phosphino carboxylic acid as chelating agent.
The hydrotreating/hydrodesulfurization catalyst as prepared by the novel two-step process of the present invention provides many advantages over the hydrotreating catalyst as prepared through conventional multistep process. Firstly, reduces the number of preparation steps and the spraying of heteropoly acid structural components on alumina surface enhances the homogeneous dispersion of Molybdenum (Mo) atoms during the calcination step.
The spray loading of Nickel along with complexation agents and uncalcined final catalyst can slows down the formation of N1S2 and apparently M0S2 forms first followed by nickel substitution at edges. Thus, this provides more active metal sites and thus enhanced catalytic activity.
Further, the present invention decreases the interaction between Nickel (Ni), Molybdenum (Mo) and Alumina which is evident in temperature programmed reduction. When compared to multi step spray impregnation, this interaction between support and active phase is less with the present spray impregnation along with chelating agent combination.
Further, the proportion of Heptamolybdate species on the catalyst can be increased by preparing a catalyst through the two-step spray impregnation technique as disclosed in the present invention.
Claims
1. A two-step spray impregnation process for preparing a catalyst for hydrodesulfurization of hydrocarbon fuels selected from Naphtha, Gasoline or Diesel, wherein, the process comprising steps of: a first impregnation step of preparing a P-Mo-Alumina complex by loading a first spray solution on a calcined alumina support, wherein, the first spray solution comprises Molybdenum (Mo), Phosphorous (P) and at least one chelating agent; and a second impregnation step of preparing a P-Mo-Ni loaded alumina by loading a second spray solution on the said P-Mo-Alumina complex, wherein, the said second spray solution comprises Nickel (Ni) and at least one chelating agent.
2. The process as claimed in claim 1, wherein, the first impregnation step further comprises aging the said P-Mo-Alumina complex at ambient room conditions for 1-5 hours, and drying at 90°C.
3. The process as claimed in claim 2, wherein, the said P-Mo-Alumina complex is calcined at 500°C.
4. The process as claimed in claim 1, wherein, the loading of the first spray solution on a calcined alumina support is done at a pH of 5-5.2.
5. The process as claimed in claim 1, wherein, the second impregnation step further comprises drying the P-Mo-Ni loaded alumina.
6. The process as claimed in claim 1, wherein, the at least one chelating agent is selected from an organic acid having -COOH functional group, amino carboxylic acid -NH2- COOH, phosphino carboxylic acid -P04-COOH, thio phospho amino carboxylic acid -SH-NH2-COOH, hydroxamic acid -NOH-C=0 or thio amino carboxylic acid -SH- NH2-COOH, or a combination thereof.
7. The process as claimed in claim 6, wherein, the at least one chelating agent is selected from acid group having citric acid (CA), nitrilo triacetic acid (NTA), phosphino
carboxylic acid, phospho serine, aceto hydroxamic acid, thio L-aspartic acid, or a combination thereof.
8. The process as claimed in claim 7, wherein, the at least one chelating agent is selected from citric acid (CA), or a combination of citric acid (CA) with at least one acid selected from nitrilo triacetic acid (NTA), phosphino carboxylic acid, phospho serine, aceto hydroxamic acid, thio L-aspartic acid.
9. The process as claimed in claim 1, wherein, the Molybdenum (Mo) is selected from one of ammonium heptamolybdate, molybdophosphic acid, molybdenum oxide, molybdenum chloride, or a combination thereof.
10. The process as claimed in claim 1, wherein, the Phosphorous (P) is selected from Phosphoric acid, diammonium hydrogen phosphate, ammonium dihydrogen phosphate, hypophosphoric acid, or a combination thereof.
11. The process as claimed in claim 1, wherein, the Nickel (Ni) is selected from Nickel acetate, nickel sulfate, nickel acetylacetonate, nickel chloride, nickel carbonate, or a combination thereof.
12. A dispersed hydrotreating catalyst comprising: phosphorous oxide in the range of 4-9 weight percentage with respect to the total weight of the catalyst; molybdenum oxide in the range of 10-30 weight percentage with respect to the total weight of the catalyst; nickel oxide in the range of 1-8 weight percentage with respect to the total weight of the catalyst; at least one chelating agent in the range of 0.5-5 weight percentage with respect to the total weight of the catalyst; and
AI2O3 support in the range of 40-65 weight percentage with respect to the total weight of the catalyst, wherein, the said hydrotreating catalyst results 4ppm- 9ppm product sulfur from a diesel feed having 20000 ppm sulfur content.
13. The dispersed hydrotreating catalyst as claimed in claim 12, wherein, at least one chelating agent stabilizes the formation of a Molybdenum-Phosphorous (Mo-P) heteropoly acid complex over the said AI2O3 support.
14. The dispersed hydrotreating catalyst as claimed in claim 12 to 13, wherein, the at least one chelating agent is selected from an organic acid having -COOH functional group, amino carboxylic acid -NH2-COOH, phosphino carboxylic acid -P04-COOH, thio phospho amino carboxylic acid -SH-NH2-COOH, hydroxamic acid -NOH-C=0 or thio amino carboxylic acid -SH-NH2-COOH, or a combination thereof.
15. The dispersed hydrotreating catalyst as claimed in claim 12 to 14, wherein, the at least one chelating agent is selected from acid group having citric acid (CA), nitrilo triacetic acid (NTA), phosphino carboxylic acid, phospho serine, aceto hydroxamic acid, thio L-aspartic acid, or a combination thereof.
16. The dispersed hydrotreating catalyst as claimed in claim 12 to 15, wherein, the at least one chelating agent is selected from citric acid (CA), or a combination of citric acid (CA) with at least one acid selected from nitrilo triacetic acid (NTA), phosphino carboxylic acid, phospho serine, aceto hydroxamic acid, thio L-aspartic acid.
17. The dispersed hydrotreating catalyst as claimed in claim 12 to 13, wherein, the said AI2O3 support have uniform dispersion of Molybdenum (Mo) and Phosphorous (P).
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115770591A (en) * | 2022-10-31 | 2023-03-10 | 复旦大学 | Transition metal doped molybdenum disulfide/carbon composite material and preparation method and application thereof |
WO2023170700A1 (en) * | 2022-03-11 | 2023-09-14 | Hindustan Petroleum Corporation Limited | Naphtha hydrotreating catalyst and process of preparation thereof |
Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5198100A (en) * | 1990-12-24 | 1993-03-30 | Exxon Research And Engineering Company | Hydrotreating using novel hydrotreating catalyst |
US6383975B1 (en) * | 1998-07-07 | 2002-05-07 | Instituto Mexicano Del Petroleo | Procedure to obtain a catalyst for the hydrodenitrogenation and hydrodesulfurization of middle and heavy oil fraction and the resulting product |
CN101439292A (en) | 2008-12-26 | 2009-05-27 | 厦门大学 | Solid catalyst for producing isobutene from oxidative dehydrogenation of isobutane and preparation method thereof |
CN102600913A (en) | 2011-01-20 | 2012-07-25 | 中国石油天然气股份有限公司 | Method for preparing molybdenum, nickel and phosphorus dipping aqueous solution |
US9321041B2 (en) | 2010-07-29 | 2016-04-26 | IFP Energies Nouvelles | Process for hydrotreating a hydrocarbon cut with a boiling point of more than 250° C. in the presence of a sulphide catalyst prepared using a cyclic oligosaccharide |
CN106732776A (en) | 2016-12-02 | 2017-05-31 | 泰州学院 | A kind of is the Hydrobon catalyst of presoma based on heteropoly acid cluster |
KR101751923B1 (en) | 2016-01-22 | 2017-07-06 | 한국화학연구원 | Hydrodesulfurization catalyst and preparing method thereof |
US10058852B2 (en) | 2014-07-04 | 2018-08-28 | IFP Energies Nouvelles | Hydrotreatment catalyst with a high density of molybdenum, and process for its preparation |
US10118160B2 (en) | 2013-11-07 | 2018-11-06 | Shell Oil Company | Process for preparing a hydrotreating catalyst |
US20200290025A1 (en) | 2016-07-22 | 2020-09-17 | Eni S.P.A. | Hydrotreatment catalysts and process for preparing said catalysts |
WO2021161328A1 (en) * | 2020-02-11 | 2021-08-19 | Hindustan Petroleum Corporation Limited | A composition for dispersed hydrodesulfurization catalyst and process for preparation of the same |
-
2022
- 2022-02-23 WO PCT/IN2022/050156 patent/WO2022201179A1/en active Application Filing
Patent Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5198100A (en) * | 1990-12-24 | 1993-03-30 | Exxon Research And Engineering Company | Hydrotreating using novel hydrotreating catalyst |
US6383975B1 (en) * | 1998-07-07 | 2002-05-07 | Instituto Mexicano Del Petroleo | Procedure to obtain a catalyst for the hydrodenitrogenation and hydrodesulfurization of middle and heavy oil fraction and the resulting product |
CN101439292A (en) | 2008-12-26 | 2009-05-27 | 厦门大学 | Solid catalyst for producing isobutene from oxidative dehydrogenation of isobutane and preparation method thereof |
US9321041B2 (en) | 2010-07-29 | 2016-04-26 | IFP Energies Nouvelles | Process for hydrotreating a hydrocarbon cut with a boiling point of more than 250° C. in the presence of a sulphide catalyst prepared using a cyclic oligosaccharide |
CN102600913A (en) | 2011-01-20 | 2012-07-25 | 中国石油天然气股份有限公司 | Method for preparing molybdenum, nickel and phosphorus dipping aqueous solution |
US10118160B2 (en) | 2013-11-07 | 2018-11-06 | Shell Oil Company | Process for preparing a hydrotreating catalyst |
US10058852B2 (en) | 2014-07-04 | 2018-08-28 | IFP Energies Nouvelles | Hydrotreatment catalyst with a high density of molybdenum, and process for its preparation |
KR101751923B1 (en) | 2016-01-22 | 2017-07-06 | 한국화학연구원 | Hydrodesulfurization catalyst and preparing method thereof |
US20200290025A1 (en) | 2016-07-22 | 2020-09-17 | Eni S.P.A. | Hydrotreatment catalysts and process for preparing said catalysts |
CN106732776A (en) | 2016-12-02 | 2017-05-31 | 泰州学院 | A kind of is the Hydrobon catalyst of presoma based on heteropoly acid cluster |
WO2021161328A1 (en) * | 2020-02-11 | 2021-08-19 | Hindustan Petroleum Corporation Limited | A composition for dispersed hydrodesulfurization catalyst and process for preparation of the same |
Non-Patent Citations (2)
Title |
---|
KOBAYASHI KENTARO ET AL: "Active sites of sulfided NiMo/Al 2 O 3 catalysts for 4,6-dimethyldibenzothiophene hydrodesulfurization-effects of Ni and Mo components, sulfidation, citric acid and phosphate addition", CATALYSIS TODAY, vol. 292, 1 September 2017 (2017-09-01), AMSTERDAM, NL, pages 74 - 83, XP055921004, ISSN: 0920-5861, Retrieved from the Internet <URL:https://www.sciencedirect.com/science/article/pii/S0920586117300408/pdfft?md5=04bb618b0ae50654caa9bd46bdf7795c&pid=1-s2.0-S0920586117300408-main.pdf> DOI: 10.1016/j.cattod.2017.01.040 * |
SUN MINGYONG ET AL: "The effects of fluorine, phosphate and chelating agents on hydrotreating catalysts and catalysis", CATALYSIS TODAY, vol. 86, no. 1-4, 1 November 2003 (2003-11-01), AMSTERDAM, NL, pages 173 - 189, XP055920237, ISSN: 0920-5861, Retrieved from the Internet <URL:https://www.sciencedirect.com/science/article/pii/S0920586103004103/pdfft?md5=beb8c6a3e1cc2fb0e8eabe07e6dc5ccb&pid=1-s2.0-S0920586103004103-main.pdf> DOI: 10.1016/S0920-5861(03)00410-3 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2023170700A1 (en) * | 2022-03-11 | 2023-09-14 | Hindustan Petroleum Corporation Limited | Naphtha hydrotreating catalyst and process of preparation thereof |
CN115770591A (en) * | 2022-10-31 | 2023-03-10 | 复旦大学 | Transition metal doped molybdenum disulfide/carbon composite material and preparation method and application thereof |
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