CN116059988B - Paraffin hydrogenation catalyst and synthesis method and application thereof - Google Patents
Paraffin hydrogenation catalyst and synthesis method and application thereof Download PDFInfo
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- CN116059988B CN116059988B CN202111279339.6A CN202111279339A CN116059988B CN 116059988 B CN116059988 B CN 116059988B CN 202111279339 A CN202111279339 A CN 202111279339A CN 116059988 B CN116059988 B CN 116059988B
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- paraffin
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- acid
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- 239000003054 catalyst Substances 0.000 title claims abstract description 67
- 239000012188 paraffin wax Substances 0.000 title claims abstract description 58
- 238000005984 hydrogenation reaction Methods 0.000 title claims abstract description 13
- 238000001308 synthesis method Methods 0.000 title claims abstract description 9
- 238000000034 method Methods 0.000 claims abstract description 28
- 238000001035 drying Methods 0.000 claims abstract description 21
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 17
- 229910052751 metal Inorganic materials 0.000 claims abstract description 17
- 239000012169 petroleum derived wax Substances 0.000 claims abstract description 17
- 235000019381 petroleum wax Nutrition 0.000 claims abstract description 17
- 239000002994 raw material Substances 0.000 claims abstract description 17
- 239000002184 metal Substances 0.000 claims abstract description 16
- 239000004530 micro-emulsion Substances 0.000 claims abstract description 16
- 238000010438 heat treatment Methods 0.000 claims abstract description 15
- 239000011148 porous material Substances 0.000 claims abstract description 12
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000002253 acid Substances 0.000 claims abstract description 9
- 239000011591 potassium Substances 0.000 claims abstract description 9
- 229910052700 potassium Inorganic materials 0.000 claims abstract description 9
- 239000002028 Biomass Substances 0.000 claims abstract description 8
- 238000002156 mixing Methods 0.000 claims abstract description 8
- 239000000203 mixture Substances 0.000 claims abstract description 8
- 238000005406 washing Methods 0.000 claims abstract description 8
- 239000011230 binding agent Substances 0.000 claims abstract description 7
- 238000001125 extrusion Methods 0.000 claims abstract description 7
- 239000000126 substance Substances 0.000 claims abstract description 7
- 238000010000 carbonizing Methods 0.000 claims abstract description 5
- 238000004898 kneading Methods 0.000 claims abstract description 5
- 238000000465 moulding Methods 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims abstract description 4
- 238000010189 synthetic method Methods 0.000 claims abstract 6
- 239000000843 powder Substances 0.000 claims description 13
- 239000001993 wax Substances 0.000 claims description 13
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 12
- 238000003763 carbonization Methods 0.000 claims description 9
- 239000011261 inert gas Substances 0.000 claims description 9
- 229910000476 molybdenum oxide Inorganic materials 0.000 claims description 9
- 229910000480 nickel oxide Inorganic materials 0.000 claims description 9
- PQQKPALAQIIWST-UHFFFAOYSA-N oxomolybdenum Chemical compound [Mo]=O PQQKPALAQIIWST-UHFFFAOYSA-N 0.000 claims description 9
- GNRSAWUEBMWBQH-UHFFFAOYSA-N oxonickel Chemical compound [Ni]=O GNRSAWUEBMWBQH-UHFFFAOYSA-N 0.000 claims description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 8
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 8
- 239000012299 nitrogen atmosphere Substances 0.000 claims description 8
- 229910052698 phosphorus Inorganic materials 0.000 claims description 8
- 239000011574 phosphorus Substances 0.000 claims description 8
- CKQGJVKHBSPKST-UHFFFAOYSA-N [Ni].P#[Mo] Chemical compound [Ni].P#[Mo] CKQGJVKHBSPKST-UHFFFAOYSA-N 0.000 claims description 7
- 239000003995 emulsifying agent Substances 0.000 claims description 7
- 239000007789 gas Substances 0.000 claims description 7
- -1 polyoxypropylene Polymers 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 6
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 6
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 6
- 229910017604 nitric acid Inorganic materials 0.000 claims description 6
- 230000001681 protective effect Effects 0.000 claims description 6
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 4
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 4
- 150000007522 mineralic acids Chemical group 0.000 claims description 4
- 229910052757 nitrogen Inorganic materials 0.000 claims description 4
- 150000007524 organic acids Chemical class 0.000 claims description 4
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 claims description 4
- 239000002023 wood Substances 0.000 claims description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 3
- 239000001257 hydrogen Substances 0.000 claims description 3
- 229910052739 hydrogen Inorganic materials 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 2
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 2
- 241001330002 Bambuseae Species 0.000 claims description 2
- FEWJPZIEWOKRBE-JCYAYHJZSA-N Dextrotartaric acid Chemical compound OC(=O)[C@H](O)[C@@H](O)C(O)=O FEWJPZIEWOKRBE-JCYAYHJZSA-N 0.000 claims description 2
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 claims description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 2
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims description 2
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 2
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 claims description 2
- 229920002472 Starch Polymers 0.000 claims description 2
- FEWJPZIEWOKRBE-UHFFFAOYSA-N Tartaric acid Natural products [H+].[H+].[O-]C(=O)C(O)C(O)C([O-])=O FEWJPZIEWOKRBE-UHFFFAOYSA-N 0.000 claims description 2
- 229910052786 argon Inorganic materials 0.000 claims description 2
- 239000011425 bamboo Substances 0.000 claims description 2
- 229920001400 block copolymer Polymers 0.000 claims description 2
- 239000001913 cellulose Substances 0.000 claims description 2
- 229920002678 cellulose Polymers 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 2
- 235000013399 edible fruits Nutrition 0.000 claims description 2
- 150000002148 esters Chemical class 0.000 claims description 2
- 239000000194 fatty acid Substances 0.000 claims description 2
- 229930195729 fatty acid Natural products 0.000 claims description 2
- 239000001307 helium Substances 0.000 claims description 2
- 229910052734 helium Inorganic materials 0.000 claims description 2
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 claims description 2
- 239000012875 nonionic emulsifier Substances 0.000 claims description 2
- 229920005862 polyol Polymers 0.000 claims description 2
- 229920000056 polyoxyethylene ether Polymers 0.000 claims description 2
- 229940051841 polyoxyethylene ether Drugs 0.000 claims description 2
- 229920001451 polypropylene glycol Polymers 0.000 claims description 2
- 229920000136 polysorbate Polymers 0.000 claims description 2
- 229950008882 polysorbate Drugs 0.000 claims description 2
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 2
- 229910000027 potassium carbonate Inorganic materials 0.000 claims description 2
- CHWRSCGUEQEHOH-UHFFFAOYSA-N potassium oxide Chemical compound [O-2].[K+].[K+] CHWRSCGUEQEHOH-UHFFFAOYSA-N 0.000 claims description 2
- 229910001950 potassium oxide Inorganic materials 0.000 claims description 2
- 239000011257 shell material Substances 0.000 claims description 2
- 239000008107 starch Substances 0.000 claims description 2
- 235000019698 starch Nutrition 0.000 claims description 2
- 239000010902 straw Substances 0.000 claims description 2
- 239000011975 tartaric acid Substances 0.000 claims description 2
- 235000002906 tartaric acid Nutrition 0.000 claims description 2
- 244000275012 Sesbania cannabina Species 0.000 claims 1
- 230000002194 synthesizing effect Effects 0.000 claims 1
- 230000000052 comparative effect Effects 0.000 description 10
- 241000219782 Sesbania Species 0.000 description 5
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 5
- 239000012298 atmosphere Substances 0.000 description 5
- 229920000609 methyl cellulose Polymers 0.000 description 4
- 239000001923 methylcellulose Substances 0.000 description 4
- 235000010981 methylcellulose Nutrition 0.000 description 4
- 239000000428 dust Substances 0.000 description 3
- 239000000244 polyoxyethylene sorbitan monooleate Substances 0.000 description 3
- 235000010482 polyoxyethylene sorbitan monooleate Nutrition 0.000 description 3
- 229920000053 polysorbate 80 Polymers 0.000 description 3
- 229940068968 polysorbate 80 Drugs 0.000 description 3
- FMMWHPNWAFZXNH-UHFFFAOYSA-N Benz[a]pyrene Chemical compound C1=C2C3=CC=CC=C3C=C(C=C3)C2=C2C3=CC=CC2=C1 FMMWHPNWAFZXNH-UHFFFAOYSA-N 0.000 description 2
- 229920002153 Hydroxypropyl cellulose Polymers 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- VXAUWWUXCIMFIM-UHFFFAOYSA-M aluminum;oxygen(2-);hydroxide Chemical compound [OH-].[O-2].[Al+3] VXAUWWUXCIMFIM-UHFFFAOYSA-M 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000001863 hydroxypropyl cellulose Substances 0.000 description 2
- 235000010977 hydroxypropyl cellulose Nutrition 0.000 description 2
- JKQOBWVOAYFWKG-UHFFFAOYSA-N molybdenum trioxide Chemical compound O=[Mo](=O)=O JKQOBWVOAYFWKG-UHFFFAOYSA-N 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- XAEFZNCEHLXOMS-UHFFFAOYSA-M potassium benzoate Chemical compound [K+].[O-]C(=O)C1=CC=CC=C1 XAEFZNCEHLXOMS-UHFFFAOYSA-M 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- ZSDSQXJSNMTJDA-UHFFFAOYSA-N trifluralin Chemical compound CCCN(CCC)C1=C([N+]([O-])=O)C=C(C(F)(F)F)C=C1[N+]([O-])=O ZSDSQXJSNMTJDA-UHFFFAOYSA-N 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 229910018104 Ni-P Inorganic materials 0.000 description 1
- 229910018536 Ni—P Inorganic materials 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- APUPEJJSWDHEBO-UHFFFAOYSA-P ammonium molybdate Chemical compound [NH4+].[NH4+].[O-][Mo]([O-])(=O)=O APUPEJJSWDHEBO-UHFFFAOYSA-P 0.000 description 1
- 239000011609 ammonium molybdate Substances 0.000 description 1
- 229940010552 ammonium molybdate Drugs 0.000 description 1
- 235000018660 ammonium molybdate Nutrition 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 description 1
- 230000000711 cancerogenic effect Effects 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 239000005539 carbonized material Substances 0.000 description 1
- 231100000315 carcinogenic Toxicity 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 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
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 125000005575 polycyclic aromatic hydrocarbon group Chemical group 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/08—Heat treatment
- B01J37/082—Decomposition and pyrolysis
- B01J37/084—Decomposition of carbon-containing compounds into carbon
-
- 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
- B01J21/18—Carbon
-
- 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
- B01J27/186—Phosphorus; Compounds thereof with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J27/188—Phosphorus; Compounds thereof with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium with chromium, molybdenum, tungsten or polonium
- B01J27/19—Molybdenum
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/60—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
- B01J35/61—Surface area
- B01J35/615—100-500 m2/g
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/60—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
- B01J35/64—Pore diameter
- B01J35/647—2-50 nm
-
- 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
- B01J37/04—Mixing
-
- 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
- B01J37/08—Heat treatment
- B01J37/10—Heat treatment in the presence of water, e.g. steam
-
- 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
-
- 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
- C10G45/44—Hydrogenation of the aromatic hydrocarbons
- C10G45/46—Hydrogenation of the aromatic hydrocarbons characterised by the catalyst used
- C10G45/48—Hydrogenation of the aromatic hydrocarbons characterised by the catalyst used containing nickel or cobalt metal, or compounds thereof
- C10G45/50—Hydrogenation of the aromatic hydrocarbons characterised by the catalyst used containing nickel or cobalt metal, or compounds thereof in combination with chromium, molybdenum or tungsten metal, or compounds thereof
-
- 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
- C10G2300/00—Aspects relating to hydrocarbon processing covered by groups C10G1/00 - C10G99/00
- C10G2300/10—Feedstock materials
- C10G2300/1081—Alkanes
- C10G2300/1085—Solid paraffins
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
- Catalysts (AREA)
Abstract
The invention discloses a paraffin hydrofining catalyst and a synthetic method and application thereof. The synthesis method comprises the following steps: (1) Mixing a biomass raw material with a potassium-containing inorganic substance, and performing heat treatment on the mixture; (2) Carbonizing the material obtained in the step (1), and then carrying out steam treatment; (3) Repeating the step (2) for 1-5 times to obtain an intermediate, washing and drying to obtain carbon powder; (4) preparing microemulsion containing active metal; (5) Kneading the carbon powder obtained in the step (3), the microemulsion obtained in the step (4), an extrusion aid and a binder, molding, drying and roasting to obtain the paraffin hydrofining catalyst. The paraffin hydrofining catalyst prepared by the method provided by the invention has proper surface acid property and larger pore diameter, is used in petroleum wax hydrogenation, and shows excellent hydrofining performance.
Description
Technical Field
The invention relates to a paraffin hydrogenation catalyst, a synthesis method and application thereof.
Background
The paraffin wax is solid at normal temperature and has relatively large average molecular weight (300-500) and C20-C40 carbon atoms. The purpose of the paraffin hydrofining process is to keep the basic constitution of alkane and remove cancerogenic substances such as polycyclic aromatic hydrocarbon represented by 3, 4-benzopyrene, sulfur, nitrogen, oxygen, metal and the like in non-hydrocarbon.
At present, along with the increasing reduction and inferior quality of high-wax-content crude oil resources, the shortage and inferior quality of paraffin resources are caused, meanwhile, the continuous increase of Chinese paraffin yield and the increase of market demand varieties are caused, so that the demands for processing inferior paraffin and high-melting-point wax are increased, and the high-quality requirements of international markets on petroleum wax products cannot be met by the conventional petroleum wax hydrofining catalyst and process technology. Therefore, it is necessary to study a hydrofining catalyst with high pore diameter and high activity and develop a new advanced refining process technology suitable for treating inferior petroleum waxes.
CN200410050732.8 discloses a paraffin hydrofining catalyst and a preparation method thereof. The method comprises the steps of firstly preparing a macroporous Al 2O3 additive, uniformly mixing pseudo-thin alumina powder and macroporous Al 2O3 with a proper proportion, and then forming, drying and roasting to prepare an Al 2O3 carrier; and loading the VIII group and VIB group metal compounds and the auxiliary agent by an impregnation method, and then drying and roasting to obtain the final catalyst product.
CN01129503.1 discloses a paraffin hydrofining catalyst, its preparation method and application. The method comprises the steps of adding titanium dioxide into alumina, kneading, extruding strips for molding, drying and roasting to prepare the carrier; wherein the active component W-Mo-Ni-P is impregnated and loaded on the carrier by a one-step method, and the active component is prepared into water solution with required concentration by ammonium tungstate, ammonium molybdate, nickel nitrate and phosphoric acid at room temperature.
The technical proposal disclosed in the method adopts alumina to prepare the carrier, and in the paraffin hydrofining process, the cracking reaction of the paraffin is not allowed, and the paraffin hydrofining catalyst needs to have weaker surface acid property, so the development of the non-alumina carrier has important significance for preparing the paraffin hydrofining catalyst suitable for treating inferior petroleum waxes.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a paraffin hydrofining catalyst and a synthesis method and application thereof. The paraffin hydrofining catalyst prepared by the method has proper surface acid property and larger pore diameter, is used for petroleum wax hydrogenation, and shows excellent hydrofining performance.
The invention provides a synthesis method of a paraffin hydrofining catalyst, which comprises the following steps:
(1) Mixing a biomass raw material with a potassium-containing inorganic substance, and performing heat treatment on the mixture;
(2) Carbonizing the material obtained in the step (1), and then carrying out steam treatment;
(3) Repeating the step (2) for 1-5 times to obtain an intermediate, washing and drying to obtain carbon powder;
(4) Preparing microemulsion containing active metal;
(5) Kneading the carbon powder obtained in the step (3), the microemulsion obtained in the step (4), an extrusion aid and a binder, molding, drying and roasting to obtain the paraffin hydrofining catalyst.
Further, in the step (1), the biomass raw material is one or more of wood, straw, fruit shell, starch, bamboo and biological residues. The biomass raw material is firstly subjected to drying and crushing treatment, and the drying conditions are as follows: drying at 80-225 deg.c for 3-9 hr to obtain crushed wood chip of 100-400 mesh, preferably 200-400 mesh.
Further, in the step (1), the inorganic matter containing potassium is one or more of potassium carbonate, potassium hydroxide and potassium oxide.
Further, in the step (1), the addition amount of the potassium-containing inorganic matters satisfies the addition amount of potassium element accounting for 0.04% -5.00% of the mass of the mixture in the step (1).
Further, in the step (1), the heat treatment condition is a programmed heating heat treatment, the heating rate is 20-100 ℃/h, and the temperature is kept between 120 ℃ and 300 ℃ for 0.5-8.0 h.
Further, in the step (2), the condition of the carbonization treatment is: treating under protective gas at 250-800 deg.c, preferably 450-700 deg.c for 1-8 hr; the protective gas is inert gas and/or nitrogen, wherein the inert gas is one or more of argon and helium.
Further, in the step (2), the conditions of the steam treatment are as follows: the temperature is 150-650 ℃, the time is 2-8 h, and the preferable temperature is 350-650 ℃.
Further, in the step (3), the washing is water washing, wherein the water washing is performed by adopting a conventional means in the art, and the drying condition is that: drying for 4-10 h under the atmosphere of inert gas and/or nitrogen at 120-200 ℃.
Further, in the step (4), the microemulsion containing the active metal is prepared by mixing an active metal solution with an emulsifier. Wherein the active metal solution is a molybdenum-nickel-phosphorus solution, the content of molybdenum oxide in the solution is 20-50 g/100mL, the content of nickel oxide is 1-10 g/100mL, and the content of phosphorus is 0.1-5 g/100mL.
Further, in the step (4), the emulsifier is a nonionic emulsifier, preferably one or more selected from polyoxyethylene ether, polyoxypropylene ether, ethylene oxide and propylene oxide block copolymer, polyoxyethylene ester, polyol fatty acid ester, polyvinyl alcohol and polysorbate. The addition amount of the emulsifier is 1-20% of the volume of the active metal solution in the step (4).
Further, in the step (5), the extrusion aid is one or more selected from sesbania powder, cellulose (such as at least one of methyl cellulose and hydroxypropyl cellulose), and resin (such as at least one of phenolic resin or ethylene-vinyl acetate resin). The adding amount of the extrusion assisting agent is 0.5-10% of the mass of the carbon powder obtained in the step (3). The binder is selected from inorganic acid and/or organic acid, wherein the inorganic acid solution is nitric acid, and the organic acid solution is at least one of acetic acid, citric acid and tartaric acid. The addition amount of the binder is 0.1-15% of the mass of the carbon powder obtained in the step (3).
Further, in the step (5), the drying is performed under an inert gas and/or nitrogen atmosphere at 80-150 ℃ for 2-16 hours. The roasting conditions are as follows: roasting for 2-5 h at 300-600 ℃ under inert gas and/or nitrogen atmosphere.
In a second aspect, the present invention provides a paraffin hydrofinishing catalyst obtainable by the above synthesis process.
Further, the paraffin hydrofining catalyst comprises molybdenum oxide, nickel oxide and a carrier; wherein the mass of the molybdenum oxide is 0.1 to 28.0 percent of the mass of the catalyst, and the mass of the nickel oxide is 0.1 to 6.0 percent of the mass of the catalyst.
Further, the paraffin hydrofining catalyst also comprises phosphorus element, and the mass content of the phosphorus element is 0.1% -3.0%.
Further, the total acid amount of the paraffin hydrofining catalyst is 0.300-0.500 mmol/g.
Further, the average pore diameter of the paraffin hydrofining catalyst is 9.5-12.0 nm, preferably 9.5-10.5 nm.
The third aspect of the invention provides the application of the paraffin hydrofining catalyst in petroleum wax hydrogenation reaction.
Further, the light stability of the raw material wax petroleum wax treated in the petroleum wax hydrogenation reaction is 4-9, and the Saighur color number is more than or equal to-15.
Further, the petroleum wax hydrogenation reaction process conditions are as follows: the pressure is 2.0-10.0 MPa, the temperature is 220-320 ℃, the liquid hourly space velocity is 0.2-1.5 h -1, and the hydrogen wax volume ratio is 200-800.
Compared with the prior art, the invention has the following advantages:
(1) The method adopts the biomass raw material and the potassium salt as the carbonization raw material, and simultaneously adopts the shielding gas and the water vapor to alternately treat the carbonization raw material, thereby being beneficial to reducing the addition amount of the potassium salt in the carbon powder and ensuring that the pore diameter of the prepared carrier is easy to control.
(2) The method adopts the microemulsion containing active metal and the carbon powder to directly knead and mold to prepare the catalyst, so that the catalyst has proper surface acid property and larger pore diameter, avoids cracking reaction in the petroleum wax hydrogenation process, is used in the fields of petroleum wax hydrofining and the like, and can have good hydrofining performance.
(3) The paraffin hydrofining catalyst prepared by the method has proper surface acid property and larger pore diameter.
(4) The paraffin hydrofining catalyst prepared by the method has good paraffin hydrofining performance, the oil content of the obtained refined wax product is not obviously increased, and the Saighur color and the light stability are good.
Detailed Description
The technical scheme and effect of the present invention are further described below by examples. The embodiments and specific operation procedures are given on the premise of the technical scheme of the invention, but the protection scope of the invention is not limited to the following embodiments.
In the present invention, the total acid amount on the surface of the catalysts of the examples and comparative examples was measured by using a chemical adsorption apparatus of the American Michael type Micromeritics TriStar 2920; the pore sizes of the catalysts of the examples and comparative examples were measured using a America Michael instrument Micromeritics TriStar 2420 physical adsorption analyzer; the contents of the metal elements in the solutions and catalysts in the examples and comparative examples were analyzed by an inorganic method.
In the invention, the petroleum wax hydrogenation adopts the raw materials with light stability of 4-9 # and Saiki color number of more than or equal to-15, and adopts the national standard as the product standard, wherein the semi-refined wax product accords with the standard GB/T254-2010, and the whole refined wax product accords with the standard GB/T446-2010.
The experimental methods in the following examples, unless otherwise specified, are all conventional in the art. The experimental materials used in the examples described below, unless otherwise specified, were purchased from conventional biochemical reagent stores.
Example 1
(1) Drying oak chip raw material at 200 ℃ for 4 hours, and then crushing into 300-mesh oak chip powder; respectively weighing 1000g of oak dust powder and 5g of potassium hydroxide for mixing; then the mixture is heated to 250 ℃ at the heating rate of 50 ℃/h, and is subjected to heat treatment for 2h at 250 ℃; then carbonizing for 4 hours in inert atmosphere at 500 ℃, then carrying out steam treatment on the carbonized material for 1 hour at 500 ℃, and repeating the carbonization and steam treatment for 2 times, namely carrying out the carbonization and steam treatment steps for 3 times respectively, so as to obtain an intermediate; the obtained intermediate was subjected to water purification washing treatment and then dried at 100℃for 4 hours under an inert atmosphere to obtain 483g of carbon powder.
(2) Preparing a molybdenum-nickel-phosphorus solution, wherein the content of molybdenum oxide in the solution is 36.4g/100mL, the content of nickel oxide is 7.6g/100mL, and the content of phosphorus is 3.8g/100mL. A microemulsion containing active metal was prepared by adding 35g of polysorbate 80 to 483mL of the molybdenum nickel phosphorus solution. 483g of carbon powder is mixed with the microemulsion, 10g of sesbania powder, 20g of methyl cellulose and 10g of nitric acid are added, kneaded, dried for 5 hours at 110 ℃ in nitrogen atmosphere, and then baked for 3 hours at 450 ℃ in nitrogen atmosphere, so that the paraffin hydrofining catalyst A is prepared. The physicochemical properties of the catalyst of example 1 above are listed in table 1.
Example 2
The paraffin hydrorefining catalyst B of the present invention was prepared under the same conditions as in example 1 except that 1000g of coffee grounds powder was weighed instead of 1000g of oak dust powder. The physicochemical properties of the catalyst are shown in Table 1.
Example 3
The paraffin hydrorefining catalyst C of the present invention was prepared as in example 1, except that the carbonization temperature was 550℃and the other conditions were unchanged. The physicochemical properties of the catalyst are shown in Table 1.
Example 4
The paraffin hydrorefining catalyst D of the present invention was prepared as in example 1 except that carbon powder was mixed with the microemulsion, and kneading was performed by using 15g of hydroxypropyl cellulose instead of 20g of methylcellulose, and molding was performed under the same conditions. The physicochemical properties of the catalyst are shown in Table 1.
Example 5
The same procedure as in example 1 was followed except that 20g of polysorbate 80 was used to prepare a microemulsion of molybdenum nickel phosphorus solution, under otherwise unchanged conditions, to prepare the paraffin hydrofining catalyst E of the present invention. The physicochemical properties of the catalyst are shown in Table 1.
Comparative example 1
The industrial pseudo-boehmite, 2wt% nitric acid and 2wt% sesbania powder, the microemulsion containing active metal in example 1 were mixed, molded, dried at 120℃for 4 hours, and calcined at 450℃for 3 hours to prepare a paraffin hydrofining catalyst F. The physicochemical properties of the catalyst are shown in Table 1.
Comparative example 2
The technical grade pseudo-boehmite, 2wt% nitric acid and 2wt% sesbania powder are mixed, molded, dried at 130 ℃ for 3 hours and baked at 700 ℃ for 3 hours to prepare an alumina carrier (carrier liquid absorption rate is 0.84), the carrier is saturated and immersed into an impregnating solution containing molybdenum and nickel (wherein the content of the molybdenum oxide is 45.2G/100mL, the content of the nickel oxide is 9.5G/100mL, and the content of the phosphorus is 4.8G/100 mL), and the carrier is dried at 120 ℃ for 5 hours and then baked at 450 ℃ for 3 hours to prepare the paraffin hydrofining catalyst G.
Comparative example 3
(1) Drying oak chip raw material at 200 ℃ for 4 hours, and then crushing into 300-mesh oak chip powder; respectively weighing 1000g of oak dust powder and 5g of potassium hydroxide for mixing; then the mixture is heated to 250 ℃ at the heating rate of 50 ℃/h, and is subjected to heat treatment for 2h at 250 ℃; then carbonizing for 4 hours in inert atmosphere at the carbonization temperature of 500 ℃ to prepare an intermediate; the obtained intermediate was subjected to water purification washing treatment and then dried at 100℃for 4 hours under an inert atmosphere to obtain 483g of carbon powder.
(2) Preparing a molybdenum-nickel-phosphorus solution, wherein the content of molybdenum oxide in the solution is 38g/100mL, the content of nickel oxide is 8.0g/100mL, and the content of phosphorus is 4.0g/100mL. A microemulsion containing active metal was prepared by adding 35g of polysorbate 80 to 483mL of the molybdenum nickel phosphorus solution. 483g of carbon powder is mixed with the microemulsion, 10g of sesbania powder, 20g of methyl cellulose and 10g of nitric acid are added, kneaded, dried for 5 hours at 110 ℃ in nitrogen atmosphere, and then baked for 3 hours at 450 ℃ in nitrogen atmosphere, thus preparing the paraffin hydrofining catalyst H.
The physicochemical properties of the catalysts obtained in the above examples and comparative examples are listed in table 1.
Table 1 properties of the catalysts obtained in examples and comparative examples
| Catalyst numbering | A | B | C | D | E | F | G | H |
| Specific surface area, m 2/g | 235 | 239 | 228 | 236 | 234 | 182 | 167 | 174 |
| Pore volume, mL/g | 0.51 | 0.52 | 0.55 | 0.52 | 0.51 | 0.28 | 0.39 | 0.24 |
| Average pore diameter, nm | 9.75 | 9.83 | 10.31 | 9.84 | 9.71 | 7.18 | 8.48 | 6.64 |
| Total acid, mmol/g | 0.369 | 0.376 | 0.332 | 0.373 | 0.347 | 0.678 | 0.568 | 0.358 |
| MoO3，wt％ | 24.51 | 23.78 | 24.49 | 24.53 | 24.52 | 24.38 | 24.48 | 24.48 |
| NiO，wt％ | 5.15 | 5.08 | 5.14 | 5.17 | 5.15 | 5.08 | 5.14 | 5.12 |
| P，wt％ | 2.50 | 2.46 | 2.47 | 2.48 | 2.45 | 2.44 | 2.56 | 2.46 |
Example 6
The paraffin wax hydrofining catalysts prepared in the above examples 1-5 and comparative examples 1,2 and 3 were used to hydrofining raw material wax under the same process conditions of 5.0MPa, 260 ℃ and 1.0h -1 of liquid hourly space velocity, 500 of hydrogen wax volume ratio, and the properties of the raw material wax and hydrofined wax products are listed in Table 2.
Table 2 raw wax and hydrofinishing product properties for each example and comparative example
As can be seen from Table 2, the paraffin hydrofining catalyst prepared by the method of the invention has no oil content rise in the paraffin product after hydrofining, and the Sai color number of the obtained paraffin product is more than or equal to +30, which indicates that the paraffin hydrofining catalyst prepared by the method of the invention has excellent hydrofining performance and good quality of the paraffin product after hydrofining.
Claims (20)
1. A method for synthesizing a paraffin hydrofining catalyst, which comprises the following steps:
(1) Mixing a biomass raw material with a potassium-containing inorganic substance, and performing heat treatment on the mixture;
(2) Carbonizing the material obtained in the step (1), and then carrying out steam treatment;
(3) Repeating the step (2) for 1-5 times to obtain an intermediate, washing and drying to obtain carbon powder;
(4) Preparing microemulsion containing active metal;
(5) Kneading the carbon powder obtained in the step (3), the microemulsion obtained in the step (4), an extrusion aid and a binder, molding, drying and roasting to obtain the paraffin hydrofining catalyst;
In the step (1), the heat treatment condition is a programmed heating heat treatment, the heating rate is 20-100 ℃/h, and the temperature is kept between 120 and 300 ℃ for 0.5-8.0 h;
In the step (2), the condition of the carbonization treatment is as follows: treating under protective gas at 250-800 deg.c for 1-8 hr; wherein the protective gas is inert gas and/or nitrogen;
in the step (2), the conditions of the steam treatment are as follows: the temperature is 150-650 ℃ and the time is 2-8 h.
2. The synthesis method according to claim 1, wherein in the step (1), the biomass raw material is one or more of wood, straw, fruit shell, starch, bamboo and biological residues; the biomass raw material is firstly subjected to drying and crushing treatment, and the drying conditions are as follows: drying for 3-9 h at 80-225 ℃, and the granularity of the crushed wood chips is 100-400 meshes.
3. The synthesis method according to claim 1, wherein in the step (1), the potassium-containing inorganic substance is one or more of potassium carbonate, potassium hydroxide and potassium oxide.
4. The synthesis method according to claim 1, wherein in the step (1), the amount of the potassium-containing inorganic substance added is such that the amount of potassium element added is 0.04 to 5.00% by mass of the mixture in the step (1).
5. The synthetic method according to claim 1, wherein in the step (2), the condition of the carbonization treatment is: treating under protective gas at 450-700 deg.c; the inert gas in the protective gas is one or a mixture of more of argon and helium.
6. The synthetic method according to claim 1, wherein in step (2), the conditions of the water vapor treatment are: the temperature is 350-650 ℃.
7. The method of claim 1, wherein in step (4), the active metal-containing microemulsion is prepared by mixing an active metal solution with an emulsifier; wherein the active metal solution is a molybdenum-nickel-phosphorus solution, the content of molybdenum oxide in the solution is 20-50 g/100mL, the content of nickel oxide is 1-10 g/100mL, and the content of phosphorus is 0.1-5 g/100mL.
8. The method of claim 7, wherein in step (4), the emulsifier is a nonionic emulsifier; the addition amount of the emulsifier is 1-20% of the volume of the active metal solution in the step (4).
9. The method according to claim 7, wherein in the step (4), the emulsifier is one or more selected from polyoxyethylene ether, polyoxypropylene ether, ethylene oxide and propylene oxide block copolymer, polyoxyethylene ester, polyol fatty acid ester, polyvinyl alcohol, and polysorbate.
10. The synthetic method according to claim 1, wherein in step (5), the extrusion aid is selected from one or more of sesbania powder, cellulose, and resin; the adding amount of the extrusion assisting agent is 0.5-10% of the mass of the carbon powder obtained in the step (3); the binder is selected from inorganic acid and/or organic acid, wherein the inorganic acid is nitric acid, and the organic acid solution is at least one of acetic acid, citric acid and tartaric acid; the addition amount of the binder is 0.1-15% of the mass of the carbon powder obtained in the step (3).
11. The synthetic method according to claim 1, wherein in the step (5), the drying is performed under an inert gas and/or nitrogen atmosphere at 80 to 150 ℃ for 2 to 16 hours; the roasting conditions are as follows: roasting for 2-5 h at 300-600 ℃ under inert gas and/or nitrogen atmosphere.
12. A paraffin hydrofining catalyst obtained by the synthetic method of any one of claims 1 to 11.
13. The paraffin hydrofinishing catalyst according to claim 12, wherein the paraffin hydrofinishing catalyst comprises molybdenum oxide, nickel oxide and a support; wherein the mass of the molybdenum oxide is 0.1 to 28.0 percent of the mass of the catalyst, and the mass of the nickel oxide is 0.1 to 6.0 percent of the mass of the catalyst.
14. The paraffin hydrofining catalyst according to claim 13, wherein the paraffin hydrofining catalyst further comprises phosphorus element with a mass content of 0.1% to 3.0%.
15. The paraffin hydrofinishing catalyst according to claim 12 or 13, wherein the total acid amount of the paraffin hydrofinishing catalyst is 0.300 to 0.500mmol/g.
16. The paraffin hydrofinishing catalyst according to claim 12 or 13, wherein the average pore size of the paraffin hydrofinishing catalyst is 9.5 to 12.0nm.
17. The paraffin hydrofinishing catalyst according to claim 12 or 13, wherein the average pore size of the paraffin hydrofinishing catalyst is 9.5 to 10.5nm.
18. Use of a paraffin hydrofinishing catalyst according to any one of claims 12 to 17 in petroleum wax hydrogenation reactions.
19. The use according to claim 18, wherein the raw material wax treated in the petroleum wax hydrogenation reaction has a petroleum wax light stability of 4 to 9 gauge, a siamesed colour number of ∈ -15 or more.
20. The use according to claim 18, wherein the petroleum wax hydrogenation reaction is carried out under process conditions of: the pressure is 2.0-10.0 MPa, the temperature is 220-320 ℃, the liquid hourly space velocity is 0.2-1.5 h -1, and the hydrogen wax volume ratio is 200-800.
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