JP2011038059A - 潤滑油基油の製造方法 - Google Patents
潤滑油基油の製造方法 Download PDFInfo
- Publication number
- JP2011038059A JP2011038059A JP2009189432A JP2009189432A JP2011038059A JP 2011038059 A JP2011038059 A JP 2011038059A JP 2009189432 A JP2009189432 A JP 2009189432A JP 2009189432 A JP2009189432 A JP 2009189432A JP 2011038059 A JP2011038059 A JP 2011038059A
- Authority
- JP
- Japan
- Prior art keywords
- oil
- base oil
- lubricating base
- catalyst
- metal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000002199 base oil Substances 0.000 title claims abstract description 100
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 50
- 239000000314 lubricant Substances 0.000 title abstract description 15
- 239000003921 oil Substances 0.000 claims abstract description 111
- 239000003054 catalyst Substances 0.000 claims abstract description 79
- 229910052751 metal Inorganic materials 0.000 claims abstract description 79
- 239000002184 metal Substances 0.000 claims abstract description 79
- 238000003795 desorption Methods 0.000 claims abstract description 21
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 19
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 12
- 150000002739 metals Chemical class 0.000 claims abstract description 11
- 230000000737 periodic effect Effects 0.000 claims abstract description 11
- 229910021529 ammonia Inorganic materials 0.000 claims abstract description 6
- 238000011156 evaluation Methods 0.000 claims abstract description 6
- 230000001050 lubricating effect Effects 0.000 claims description 75
- 239000012188 paraffin wax Substances 0.000 claims description 61
- 238000006243 chemical reaction Methods 0.000 claims description 44
- 239000011148 porous material Substances 0.000 claims description 41
- 125000004432 carbon atom Chemical group C* 0.000 claims description 40
- 238000000034 method Methods 0.000 claims description 26
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 25
- 239000011593 sulfur Substances 0.000 claims description 25
- 229910052717 sulfur Inorganic materials 0.000 claims description 25
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 24
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 20
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 20
- 239000001993 wax Substances 0.000 claims description 15
- 239000002994 raw material Substances 0.000 claims description 14
- 229910052757 nitrogen Inorganic materials 0.000 claims description 13
- 238000009835 boiling Methods 0.000 claims description 12
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 10
- 239000000377 silicon dioxide Substances 0.000 claims description 10
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims description 9
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 9
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 8
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 8
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 6
- 239000002131 composite material Substances 0.000 claims description 6
- 239000010457 zeolite Substances 0.000 claims description 6
- 229910021536 Zeolite Inorganic materials 0.000 claims description 5
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 5
- 239000007789 gas Substances 0.000 claims description 5
- 229910052763 palladium Inorganic materials 0.000 claims description 5
- 229910052697 platinum Inorganic materials 0.000 claims description 5
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 4
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 4
- 229910017052 cobalt Inorganic materials 0.000 claims description 4
- 239000010941 cobalt Substances 0.000 claims description 4
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 4
- 229910052750 molybdenum Inorganic materials 0.000 claims description 4
- 239000011733 molybdenum Substances 0.000 claims description 4
- 229910052759 nickel Inorganic materials 0.000 claims description 4
- 229910052698 phosphorus Inorganic materials 0.000 claims description 4
- 239000011574 phosphorus Substances 0.000 claims description 4
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 4
- 229910052721 tungsten Inorganic materials 0.000 claims description 4
- 239000010937 tungsten Substances 0.000 claims description 4
- 229910052809 inorganic oxide Inorganic materials 0.000 claims description 3
- 239000000395 magnesium oxide Substances 0.000 claims description 3
- 239000004200 microcrystalline wax Substances 0.000 claims description 3
- 235000019808 microcrystalline wax Nutrition 0.000 claims description 3
- 239000000243 solution Substances 0.000 description 16
- 238000004517 catalytic hydrocracking Methods 0.000 description 15
- 239000004215 Carbon black (E152) Substances 0.000 description 12
- 229930195733 hydrocarbon Natural products 0.000 description 12
- 150000002430 hydrocarbons Chemical class 0.000 description 12
- 239000010687 lubricating oil Substances 0.000 description 12
- 239000001257 hydrogen Substances 0.000 description 10
- 229910052739 hydrogen Inorganic materials 0.000 description 10
- 230000007423 decrease Effects 0.000 description 8
- 230000003197 catalytic effect Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- 238000005984 hydrogenation reaction Methods 0.000 description 7
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 6
- 238000006317 isomerization reaction Methods 0.000 description 6
- 239000000654 additive Substances 0.000 description 4
- 230000000996 additive effect Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 4
- 239000010779 crude oil Substances 0.000 description 4
- 238000011049 filling Methods 0.000 description 4
- 238000004508 fractional distillation Methods 0.000 description 4
- 238000005194 fractionation Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000002904 solvent Substances 0.000 description 4
- 238000010998 test method Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- 238000004817 gas chromatography Methods 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 239000003208 petroleum Substances 0.000 description 3
- 239000003209 petroleum derivative Substances 0.000 description 3
- 238000007670 refining Methods 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- NLZUEZXRPGMBCV-UHFFFAOYSA-N Butylhydroxytoluene Chemical compound CC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 NLZUEZXRPGMBCV-UHFFFAOYSA-N 0.000 description 2
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 235000010354 butylated hydroxytoluene Nutrition 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 238000004821 distillation Methods 0.000 description 2
- 239000003502 gasoline Substances 0.000 description 2
- 239000000383 hazardous chemical Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 2
- 230000001603 reducing effect Effects 0.000 description 2
- 239000011973 solid acid Substances 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- YFVXLROHJBSEDW-UHFFFAOYSA-N 4-[(4-nitrophenyl)diazenyl]-n-phenylaniline Chemical compound C1=CC([N+](=O)[O-])=CC=C1N=NC(C=C1)=CC=C1NC1=CC=CC=C1 YFVXLROHJBSEDW-UHFFFAOYSA-N 0.000 description 1
- 238000004438 BET method Methods 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 101000823778 Homo sapiens Y-box-binding protein 2 Proteins 0.000 description 1
- MXRIRQGCELJRSN-UHFFFAOYSA-N O.O.O.[Al] Chemical compound O.O.O.[Al] MXRIRQGCELJRSN-UHFFFAOYSA-N 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 230000001588 bifunctional effect Effects 0.000 description 1
- JQOREDBDOLZSJY-UHFFFAOYSA-H bis(2,2-dioxo-1,3,2,4-dioxathialumetan-4-yl) sulfate hexahydrate Chemical compound O.O.O.O.O.O.[Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O JQOREDBDOLZSJY-UHFFFAOYSA-H 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- WHDPTDWLEKQKKX-UHFFFAOYSA-N cobalt molybdenum Chemical compound [Co].[Co].[Mo] WHDPTDWLEKQKKX-UHFFFAOYSA-N 0.000 description 1
- 239000010725 compressor oil Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000006356 dehydrogenation reaction Methods 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 239000012208 gear oil Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 239000010721 machine oil Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000005555 metalworking Methods 0.000 description 1
- 239000012046 mixed solvent Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000002808 molecular sieve Substances 0.000 description 1
- DDTIGTPWGISMKL-UHFFFAOYSA-N molybdenum nickel Chemical compound [Ni].[Mo] DDTIGTPWGISMKL-UHFFFAOYSA-N 0.000 description 1
- MOWMLACGTDMJRV-UHFFFAOYSA-N nickel tungsten Chemical compound [Ni].[W] MOWMLACGTDMJRV-UHFFFAOYSA-N 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000002530 phenolic antioxidant Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- -1 polycyclic aromatic compound Chemical class 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 239000012266 salt solution Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 239000010723 turbine oil Substances 0.000 description 1
- 238000004018 waxing Methods 0.000 description 1
Classifications
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- 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
- C10G65/00—Treatment of hydrocarbon oils by two or more hydrotreatment processes only
- C10G65/02—Treatment of hydrocarbon oils by two or more hydrotreatment processes only plural serial stages only
- C10G65/12—Treatment of hydrocarbon oils by two or more hydrotreatment processes only plural serial stages only including cracking steps and other hydrotreatment steps
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- C10G65/00—Treatment of hydrocarbon oils by two or more hydrotreatment processes only
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- B01J23/24—Chromium, molybdenum or tungsten
- B01J23/28—Molybdenum
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- B01J23/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/24—Chromium, molybdenum or tungsten
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- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/74—Iron group metals
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- B01J23/88—Molybdenum
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- B01J23/85—Chromium, molybdenum or tungsten
- B01J23/888—Tungsten
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Abstract
【解決手段】分子状水素の存在下、炭素数20以上のノルマルパラフィンを含有する原料油と、第一の触媒とを接触させて第一の生成油を得る第一の工程と、分子状水素の存在下、上記第一の生成油と第二の触媒とを接触させて第二の生成油を得る第二の工程とを備え、上記第一の触媒は、アンモニア脱着温度依存性評価においてNH3の全脱着量に対する300〜800℃でのNH3の脱着量の分率が80〜90%である第一の担体と、該第一の担体に担持された周期表第6族に属する金属から選ばれる少なくとも1種である第一の金属と、上記第一の担体に担持された周期表第8〜10族に属する金属から選ばれる少なくとも1種である第二の金属と、を含有し、上記第一の触媒における上記第一の金属の酸化物換算での含有割合C1(質量%)と、上記第二の金属の酸化物換算での含有割合C2(質量%)との和C1+C2が22〜36質量%であり、上記第一の触媒における上記第一の金属の含有量D1(モル)に対する、上記第二の金属の含有量D2(モル)の比D1/D2が、1.07〜7.78である、潤滑油基油の製造方法。
【選択図】なし
Description
ノルマルパラフィンの転化率(%)=[1−(上記第一の生成油中の炭素数20以上のノルマルパラフィンの総質量)/(上記原料油中の炭素数20以上のノルマルパラフィンの総質量)]×100 (3)
ノルマルパラフィンの転化率(%)=[1−(前記第二の生成油中の炭素数20以上のノルマルパラフィンの総質量)/(前記第一の生成油中の炭素数20以上のノルマルパラフィンの総質量)]×100 (4)
本実施形態に係る潤滑油基油の第一の工程では、分子状水素の存在下、炭素数20以上のノルマルパラフィンを含有する原料油と、第一の触媒とを接触させて第一の生成油を得る。第一の触媒は、アンモニア脱着温度依存性評価においてNH3の全脱着量に対する300〜800℃でのNH3の脱着量の分率が80〜90%である第一の担体と、第一の担体に担持された周期表第6族に属する金属から選ばれる少なくとも1種である第一の金属と、第一の担体に担持された周期表第8〜10族に属する金属から選ばれる少なくとも1種である第二の金属と、を含有する。また、第一の触媒における第一の金属の酸化物換算での含有割合C1(質量%)と、第二の金属の酸化物換算での含有割合C2(質量%)との和C1+C2が22〜36質量%であり、第一の触媒における第一の金属の含有量D1(モル)に対する、第二の金属の含有量D2(モル)の比D1/D2が、1.07〜7.78である。
ノルマルパラフィンの転化率(%)=[1−(第一の生成油中の炭素数20以上のノルマルパラフィンの総質量)/(原料油中の炭素数20以上のノルマルパラフィンの総質量)]×100 (3)
第二の工程では、分子状水素存在下、第一の生成油と第二の触媒とを接触させて第二の生成油を得る。ここで得られる第二の生成油は、水素化脱蝋されていること、すなわち実質的に炭素数20以上のノルマルパラフィンを含有しない(すなわち、炭素数20以上のノルマルパラフィンの含有割合が、5質量%以下である)ことが好ましい。第二の工程は、いわゆる水素化脱蝋工程である。
ノルマルパラフィンの転化率(%)=[1−(第二の生成油中の炭素数20以上のノルマルパラフィンの総質量)/(第一の生成油中の炭素数20以上のノルマルパラフィンの総質量)]×100 (4)
水素化精製工程では、分子状水素存在下、第二の生成油と第三の触媒とを接触させて、第三の生成油を得る。水素化精製工程では、第二の生成油中のオレフィン成分や多環芳香族化合物を水素化することにより、色相及び/又は酸化安定性を向上させることができる。
分留工程では、第三の生成油から、潤滑油留分を蒸留分離する。この際、軽質分として燃料油留分も得られる場合がある。
70Pale:沸点340〜410℃、100℃における動粘度が2.2〜3.8mm2/s、粘度指数が105以上、流動点が−25℃以下、且つ硫黄分が5質量ppm以下。
SAE10:沸点390〜470℃、100℃における動粘度が3.5〜5.6mm2/s、粘度指数が130以上、−30℃におけるCCS粘度が2800以下、NOACK蒸発量が16質量%以下、流動点が−12.5℃以下、且つ硫黄分が5質量ppm以下。
SAE20:沸点450〜520℃、100℃における動粘度が5.6〜9.3mm2/s、粘度指数が130以上、流動点が−12.5℃以下、且つ硫黄分が5質量ppm以下。
SAE30:沸点510〜550℃、100℃における動粘度が9.3〜12.5mm2/s、粘度指数が130以上、流動点が−10℃以下、且つ硫黄分が5質量ppm以下。
実施例1に記載のアモルファスアルミナシリカジルコニア複合酸化物は、下記の方法に従って調製した。まず、溶液A、溶液B、溶液Cをそれぞれ準備する。
溶液A:イオン交換水90mlに硫酸アルミニウム16水和物試薬を20g溶解させた溶液。
溶液B:イオン交換水50mlに水ガラス3号を11.4g溶解させた溶液。
溶液C:イオン交換水50mlに硫酸ジルコニウム4水和物試薬2.3g溶解させた溶液。
次に、溶液BをpH14でゲル化させた後、pH7で2時間熟成したスラリーに、溶液Cを加え、さらにこのスラリーをpH7に調整してシリカジルコニア複合水酸化物を生成した。これに、溶液Aを加えてpH7とし、シリカジルコニアアルミナ複合水酸化物を生成した。得られたスラリーをろ過、洗浄し、加熱濃縮によって水分を調整した後に、押出し成型、乾燥、焼成を経て、直径約1.5mm、長さ約10mmの押し出し成型体(担体)を得た。得られた担体について、アンモニア脱着温度依存性評価を実施した。NH3の全脱着量に対する300〜800℃でのNH3の脱着量の分率を表1に示す。この担体に、表1に記載の含有量となるように金属をPore−filling法で担持し、硫化して、第一の触媒を得た。
なお、実施例1以外の触媒についても、表1の担体組成を満たすように溶液A、溶液B、溶液Cの濃度を調整して担体を作り、得られた担体に表1に記載の含有量となるように金属をPore−filling法で担持、硫化して、第一の触媒を得た。
Claims (15)
- 分子状水素の存在下、炭素数20以上のノルマルパラフィンを含有する原料油と、第一の触媒とを接触させて第一の生成油を得る第一の工程と、
分子状水素の存在下、前記第一の生成油と第二の触媒とを接触させて第二の生成油を得る第二の工程とを備え、
前記第一の触媒は、アンモニア脱着温度依存性評価においてNH3の全脱着量に対する300〜800℃でのNH3の脱着量の分率が80〜90%である第一の担体と、該第一の担体に担持された周期表第6族に属する金属から選ばれる少なくとも1種である第一の金属と、前記第一の担体に担持された周期表第8〜10族に属する金属から選ばれる少なくとも1種である第二の金属と、を含有し、
前記第一の触媒における前記第一の金属の酸化物換算での含有割合C1(質量%)と、前記第二の金属の酸化物換算での含有割合C2(質量%)との和C1+C2が22〜36質量%であり、
前記第一の触媒における前記第一の金属の含有量D1(モル)に対する、前記第二の金属の含有量D2(モル)の比D1/D2が、1.07〜7.78である、潤滑油基油の製造方法。 - 前記第一の生成油は、炭素数20未満の軽質パラフィンの含有割合が0〜10質量%であり、炭素数20以上の異性化パラフィンの含有割合が70質量%以上であり、硫黄分の含有割合が10質量ppm以下であり、窒素分の含有割合が3質量ppm以下である、請求項1に記載の潤滑油基油製造方法。
- 前記第一の触媒は、前記第一の金属としてモリブデン及び/又はタングステンを含有する、請求項1又は2に記載の潤滑油基油の製造方法。
- 前記第一の触媒は、前記第二の金属としてコバルト及び/又はニッケルを含有する、請求項1〜3のいずれか一項に記載の潤滑油基油の製造方法。
- 前記第一の触媒は、前記第一の担体に担持されたリンをさらに含有し、前記第一の触媒における該リンの酸化物換算での含有割合が0.1〜8質量%である、請求項1〜4のいずれか一項に記載の潤滑油基油の製造方法。
- 前記第一の触媒は、平均細孔半径が40〜200Åであり、細孔半径が40Å未満である細孔の総細孔容積が、全細孔容積の0.1〜5%であり、細孔半径が200Åより大きい細孔の総細孔容積が、全細孔容積の0.1〜5%である、請求項1〜5のいずれか一項に記載の潤滑油基油の製造方法。
- 前記第一の担体は、アルミナ、シリカ及びジルコニアの複合酸化物を含有する担体である、請求項1〜6のいずれか一項に記載の潤滑油基油の製造方法。
- 前記第一の工程において、前記炭素数20以上のノルマルパラフィンの一部を、イソパラフィンに異性化する、請求項1〜7のいずれか一項に記載の潤滑油基油の製造方法。
- 前記原料油は、スラックワックス、脱蝋油、パラフィンワックス、マイクロクリスタリンワックス、ペトラタム、フィッシャートロプシュワックス、減圧軽油水素化分解油、常圧残油水素化分解油及び減圧残油水素化分解油からなる群より選ばれる少なくとも一種である、請求項1〜8のいずれか一項に記載の潤滑油基油の製造方法。
- 前記第一の工程において、下記式(3)で表されるノルマルパラフィンの転化率が、70%以上である、請求項1〜9のいずれか一項に記載の潤滑油基油の製造方法。
ノルマルパラフィンの転化率(%)=[1−(前記第一の生成油中の炭素数20以上のノルマルパラフィンの総質量)/(前記原料油中の炭素数20以上のノルマルパラフィンの総質量)]×100 (3) - 前記第二の生成油は、炭素数20以上のノルマルパラフィンの含有割合が5質量%以下である、請求項1〜10のいずれか一項に記載の潤滑油基油の製造方法。
- 前記第二の触媒は、第二の担体と該第二の担体に担持された活性金属とを含有する水素化異性化触媒であり、
前記第二の担体は、一次元10員環中細孔径ゼオライトと、アルミナ、シリカ、ジルコニア、チタニア、マグネシア及びボリアから選ばれる少なくとも一種の多孔質無機酸化物とを含有し、
前記活性金属は、白金及び/又はパラジウムである、請求項1〜11のいずれか一項に記載の潤滑油基油の製造方法。 - 前記第二の工程において、下記式(4)で表されるノルマルパラフィンの転化率が、95%以上である、請求項1〜12のいずれか一項に記載の潤滑油基油の製造方法。
ノルマルパラフィンの転化率(%)=[1−(前記第二の生成油中の炭素数20以上のノルマルパラフィンの総質量)/(前記第一の生成油中の炭素数20以上のノルマルパラフィンの総質量)]×100 (4) - 前記第二の生成油に、さらに水素化精製を行う、請求項1〜13のいずれか一項に記載の潤滑油基油の製造方法。
- 前記第一の工程及び前記第二の工程を経て、
沸点が340〜410℃、粘度指数が105以上、流動点が−25℃以下、硫黄分が5質量ppm以下である70Pale潤滑油基油、
沸点が390〜470℃、粘度指数が130以上、流動点が−12.5℃以下、硫黄分が5質量ppm以下であるSAE10潤滑油基油、
沸点が450〜520℃、粘度指数が130以上、流動点が−12.5℃以下、硫黄分が5質量ppm以下であるSAE20潤滑油基油、及び
沸点が510〜550℃、粘度指数が130以上、流動点が−10℃以下、硫黄分が5質量ppm以下であるSAE30潤滑油基油
からなる群より選ばれる少なくとも1種の潤滑油基油を得る、請求項1〜14のいずれか一項に記載の潤滑油基油の製造方法。
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