CN101747937B - Method for preparing food-grade naphthenic white oil by using noble metal aromatic saturated catalyst - Google Patents
Method for preparing food-grade naphthenic white oil by using noble metal aromatic saturated catalyst Download PDFInfo
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- CN101747937B CN101747937B CN 200810240039 CN200810240039A CN101747937B CN 101747937 B CN101747937 B CN 101747937B CN 200810240039 CN200810240039 CN 200810240039 CN 200810240039 A CN200810240039 A CN 200810240039A CN 101747937 B CN101747937 B CN 101747937B
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- 238000000034 method Methods 0.000 title claims abstract description 35
- 239000003054 catalyst Substances 0.000 title claims abstract description 31
- 125000003118 aryl group Chemical group 0.000 title claims abstract description 19
- 229910000510 noble metal Inorganic materials 0.000 title abstract description 5
- 229920006395 saturated elastomer Polymers 0.000 title description 4
- 239000003921 oil Substances 0.000 claims abstract description 68
- 235000013305 food Nutrition 0.000 claims abstract description 43
- 238000005984 hydrogenation reaction Methods 0.000 claims abstract description 31
- 150000004945 aromatic hydrocarbons Chemical class 0.000 claims abstract description 24
- 238000007670 refining Methods 0.000 claims abstract description 22
- KDLHZDBZIXYQEI-UHFFFAOYSA-N palladium Substances [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims abstract description 21
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Substances [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims abstract description 20
- 229910052763 palladium Inorganic materials 0.000 claims abstract description 16
- 239000002994 raw material Substances 0.000 claims abstract description 14
- 238000006243 chemical reaction Methods 0.000 claims abstract description 10
- 239000001257 hydrogen Substances 0.000 claims abstract description 8
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 8
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 3
- 239000010970 precious metal Substances 0.000 claims description 18
- 229910021417 amorphous silicon Inorganic materials 0.000 claims description 16
- 239000004411 aluminium Substances 0.000 claims description 14
- 229910052782 aluminium Inorganic materials 0.000 claims description 14
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 14
- 239000011148 porous material Substances 0.000 claims description 10
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 8
- 239000000126 substance Substances 0.000 claims description 8
- 229910052757 nitrogen Inorganic materials 0.000 claims description 5
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 4
- 239000005864 Sulphur Substances 0.000 claims description 4
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 2
- 239000004480 active ingredient Substances 0.000 claims description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 2
- VXAUWWUXCIMFIM-UHFFFAOYSA-M aluminum;oxygen(2-);hydroxide Chemical compound [OH-].[O-2].[Al+3] VXAUWWUXCIMFIM-UHFFFAOYSA-M 0.000 claims description 2
- 239000011230 binding agent Substances 0.000 claims description 2
- 238000001914 filtration Methods 0.000 claims description 2
- 229910001385 heavy metal Inorganic materials 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 230000001404 mediated effect Effects 0.000 claims description 2
- 238000000465 moulding Methods 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- 239000002002 slurry Substances 0.000 claims description 2
- 238000005406 washing Methods 0.000 claims description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims 1
- 229910052785 arsenic Inorganic materials 0.000 claims 1
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 claims 1
- 229910052799 carbon Inorganic materials 0.000 claims 1
- 238000001514 detection method Methods 0.000 claims 1
- 239000002199 base oil Substances 0.000 abstract description 14
- CSDREXVUYHZDNP-UHFFFAOYSA-N alumanylidynesilicon Chemical compound [Al].[Si] CSDREXVUYHZDNP-UHFFFAOYSA-N 0.000 abstract 1
- 238000002360 preparation method Methods 0.000 description 8
- 239000002105 nanoparticle Substances 0.000 description 7
- 238000012360 testing method Methods 0.000 description 7
- 125000000753 cycloalkyl group Chemical group 0.000 description 6
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 239000012535 impurity Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000004517 catalytic hydrocracking Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000012962 cracking technique Methods 0.000 description 2
- 239000002480 mineral oil Substances 0.000 description 2
- 235000010446 mineral oil Nutrition 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- 238000007142 ring opening reaction Methods 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 238000006277 sulfonation reaction Methods 0.000 description 2
- AKEJUJNQAAGONA-UHFFFAOYSA-N sulfur trioxide Chemical compound O=S(=O)=O AKEJUJNQAAGONA-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 239000012050 conventional carrier Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical group O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000001647 drug administration Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 235000013601 eggs Nutrition 0.000 description 1
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 238000006317 isomerization reaction Methods 0.000 description 1
- 150000002605 large molecules Chemical class 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000009965 odorless effect Effects 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 230000009967 tasteless effect Effects 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
The invention relates to a method for preparing food-grade naphthenic white oil by using a noble metal aromatic hydrocarbon saturation catalyst, which takes naphthenic hydrogenated base oil obtained by hydrotreating naphthenic distillate oil as a raw material, adopts a section of deep hydrogenation and aromatic hydrocarbon saturation refining process to prepare a food-grade naphthenic white oil product, and carries out deep hydrogenation and aromatic hydrocarbon saturation refining processThe process conditions are as follows: the reaction pressure is 1.6MPa to 20.0MPa, the reaction temperature is 150 ℃ to 330 ℃, the volume ratio of hydrogen to oil is 500-1000: 1, and the airspeed is 0.1-5.0 h-1The catalyst adopted in the first-stage deep hydrogenation and aromatic saturation refining process is an aromatic saturation refining catalyst loaded with an amorphous silicon-aluminum carrier of platinum-palladium noble metal, wherein the content of Pt accounts for 0.1-0.5% of the weight of the catalyst, and the content of an auxiliary agent Pd accounts for 0.3-0.8% of the weight of the catalyst; the white oil meets the edible or food contact requirements of the national formulary NF and the United states pharmacopoeia USP.
Description
Technical field
The present invention relates to a kind of preparation method of naphthenic base white oil, relate in particular to the method that a kind of hydrogenation technique that adopts precious metal aromatic hydrocarbon saturation catalyst prepares food grade naphthenic base white oil.
Background technology
Food-level white oil can be used for the coating of fruit, vegetables, can, the froth breaking of food, glazing, antiseized, demoulding, the spraying of eggs shell, bakery's plate and dough dividing machine, cutter, parting tool, meatpacker, chopping board and suspension hook, and the polishing of food processing plant, lubricated and antirust function.
The food-level white oil preparation method can be divided into sulfonation method and hydrogenation method.
It is raw material that sulfonation method adopts hydrocracking tail oil/hydrotreatment to generate oil mostly, produces white oil take oleum/sulphur trioxide as sulphonating agent.The characteristics of this technique are: first paragraph is after the hydrotreatment of harshness, and the most of aromatic hydrocarbons and the heterogeneous ring compound that have removed, and then carry out the SO 3 sulfonated of second segment remove last unstable component.The white oil yield of this technique is lower, and produced simultaneously acid sludge and carclazyte are difficult to process, can be to the environment harm.
Hydrogenation method at first will adopt harsh hydrotreatment/cracking technique, aromatic hydrocarbons in the deep removal industrial grade white oil raw material and the impurity such as S, N compound, satisfy follow-up deep refining arts demand, and then utilize the degree of depth aromatic saturation catalyst for refining of load as-reduced metal, further remove the micro-aromatic hydrocarbons and other impurity that affect light, heat-resistant quality, could satisfy oral, colourless, the odorless of food pharmaceutical grade white oil product, tasteless demand, and the index such as readily carbonizable substance, ultraviolet absorptivity also to meet the requirement of food pharmaceutical grade white oil.
Because the hydrogenation preparation technology of food-level white oil has particular requirement to the aromatic saturation function of deep refining catalyzer and the processing condition of deep refining, when therefore preparing food-level white oil, raw material is preferably selected industrial grade white oil.Common so-called industrial grade white oil is that suitable petroleum fractions is passed through a period of hydrocracking or secondary hydrogenation cracking technique, more supporting suitable isomerization dewaxing/hydrodewaxing and additional rear refining can obtaining.CN101089136,02158178.9,200510047475.7,00123161.8, US6030921, US5393408, US5993664, US5855767, US5879539, US5976354, US6030921, US3392112 have disclosed with precious metal (platinum, palladium) reduction-state catalyzer and have prepared the technique of low viscosity food-level white oil; CN101089136,01106008.5, CN1362486A, 200510047475.7, US4055481 disclose with the reduced state nickel catalyzer and have prepared low viscosity food-level white oil technique; CN101148606,00680016428.9,03814694.0, the 200580027312.0th prepares food grade, pharmaceutical grade white oil take Fischer-Tropsch synthesis oil as raw material.These published technology, its common trait has been to use the aromatic hydrocarbon saturation catalyst of load as-reduced metal, its carrier is Modified Zeolite Y, amorphous silicon aluminium, aluminum oxide or its mixture, and the hydrogenation active metals of institute's load is the metallic nickel of reduction-state noble metal platinum, palladium or reduction-state.
Conventional as-reduced metal aromatic hydrocarbon saturation catalyst mainly is to design for the less hydrogenated base oil of viscosity, for 40 ℃ of kinematic viscosity less than 100mm
2/ s hydrogenated base oil (comprising naphthenic base oils) in the catalyzer duct and surface sorption, saturated and open loop process, meets white oil product that food grade, pharmaceutical grade require thereby prepare by micro-aromatic hydrocarbons.
For 40 ℃ of kinematic viscosity greater than 100mm
2The hydrogenated base oil of/s viscosity higher, further complexity along with viscosity increase and molecular structure, if adopt conventional carrier drill way layout, the needs of the complicated aromatic hydrocarbons that is difficult for satisfying macromolecular, super large molecule even ball bottom structure inner and surperficial competitive adsorption, saturated ring-opening reaction in the catalyzer duct can't satisfy whole aromatic saturations and ring-opening reaction.Therefore (40 ℃ of kinematic viscosity are greater than 100mm with viscosity higher
2/ s) hydrogenated base oil (comprising the cycloalkyl hydrogenated base oil) is raw material, adopt the precious metal aromatic saturation catalyst for refining of conventional drill way layout or the Hydrobon catalyst of non-noble metal as-reduced metal nickel system to process (aromatic saturation and deep hydrofinishing), all can not obtain satisfied, stable aromatic hydrocarbons open loop-saturated refining effect.Even adopt this class catalyzer than low-speed (less than 0.4h
-1) and elevated pressures (greater than 15.0MPa) condition under the readily carbonizable substance test of its refined products generally also be not easy by, can't prepare and meet the food grade naphthenic base white oil that GB/T4853-94 requires.
Summary of the invention
The purpose of this invention is to provide a kind of aromatic hydrocarbons deep hydrogenation saturation catalyst that utilizes amorphous silicon aluminium Supported Pt Nanoparticles-palladium precious metal, the cycloalkyl hydrogenated base oil is carried out the method that one section deep hydrogenation and aromatic saturation process for refining prepare food grade naphthenic base white oil.The method not only in air speed greater than 1.0h
-1The high-speed condition under can prepare the conventional viscosity grade that meets GB/T4853-94 regulation (40 ℃ of kinematic viscosity are not more than 39.5mm
2/ s) food-level white oil product can also be in air speed greater than 0.45h
-1Conventional air speed condition under prepare the key indexs such as readily carbonizable substance, ultraviolet absorptivity, heavy metal and meet the GB/T4853-94 requirement, (40 ℃ of kinematic viscosity are greater than 100mm and viscosity grade is far above the conventional viscosity rank
2/ s), can satisfy the direct contact need of human body, can be at the food grade naphthenic base white oil of food and medicine field application.Adopt treatment process of the present invention, can be in air speed greater than 0.5h
-1Condition under, satisfy the white oil product to the requirement of colour stability and readily carbonizable substance.
According to the classification of American Pharmacopeia USP, its 40 ℃ of kinematic viscosity of usually said food-level white oil are between 10-39.5mm
2/ s, medicinal white oil then are that 40 ℃ of kinematic viscosity are greater than 39.5mm
2The white mineral oil of/s or viscosity are less than 39.5mm
2The lightweight white mineral oil product of/s.
According to the GB/T4853-94 standard, its 40 ℃ of kinematic viscosity of food-level white oil commonly used also are (the highest 39.5mm of being no more than within above-mentioned scope
2/ s).
Cycloalkyl hydrogenated base oil raw material of the present invention is: 40 ℃ of kinematic viscosity are from 40～700mm
2/ s, aromaticity content is no more than 5%, characterizes the C of naphthenic oil characteristic
N% is greater than 35%, and the content of sulphur, nitrogen impurity all is not higher than 5ppm.
Catalyzer of the present invention is the aromatic hydrocarbons deep hydrogenation saturation catalyst of amorphous silicon aluminium Supported Pt Nanoparticles-palladium precious metal, and specific surface area is 200～350cm
2/ g, pore volume are 0.6～1.0ml/g, and mean pore size is at 5～15nm, wherein, the aperture be the pore volume of 100～1000nm account for total pore volume 8%～20%.
In the amorphous silicon aluminium carrier that the aromatic hydrocarbons deep hydrogenation saturation catalyst of amorphous silicon aluminium Supported Pt Nanoparticles of the present invention-palladium precious metal uses, SiO
2Content is 60%～40% of vehicle weight, Al
2O
3Content is 40%～60% of vehicle weight.This carrier is the slurries with silicoaluminate, through the powder that overaging, filtration, washing, dry supervisor prepare, is that 0.4～0.45ml/g, surface-area are 200～240m with binding agent with total pore volume
2The pseudo-boehmite of/g is mediated, extruded moulding is the amorphous silicon alumina supporter
The content of precious metal master active ingredient Pt in the aromatic hydrocarbons deep hydrogenation saturation catalyst of amorphous silicon aluminium Supported Pt Nanoparticles of the present invention-palladium precious metal accounts for 0.1～0.5% of catalyst weight, what the content of auxiliary agent Pd accounted for catalyst weight is 0.3～0.8%, and the gross weight of Supported Pt Nanoparticles-palladium accounts for 0.4%～1.3% of catalyst weight.
One section deep hydrogenation of the present invention and aromatic saturation process for refining, refer in one section fixed-bed reactor, load the aromatic hydrocarbons deep hydrogenation saturation catalyst of amorphous silicon aluminium Supported Pt Nanoparticles of the present invention-palladium precious metal, under hydro condition, process hydrogenated base oil raw material of the present invention.
In one section fixed-bed reactor of the present invention, hydrogenated base oil raw material and hydrogen are together to pass through from top to down reaction bed, then through gas separation unit, isolate hydrogen and generate oil.The hydrogen of wherein separating can recycle, and removes the light constituent that reaction process generates and generate oil through water vapor stripping/nitrogen stripping, can obtain final food grade naphthenic base white oil product.
One section deep hydrogenation of the present invention and aromatic saturation process for refining, namely at reaction pressure 1.6MPa～20.0MPa, 150 ℃～330 ℃ of temperature of reaction, hydrogen to oil volume ratio 500～1000: 1, air speed 0.1～5.0h
-1Condition under process cycloalkyl hydrogenated base oil of the present invention (40 ℃ of kinematic viscosity 39.5～700mm
2/ s, aromaticity content is not more than 5%, characterizes the C of naphthenic oil characteristic
N% is greater than 35%, and the content of sulphur, nitrogen impurity all is not higher than 5mg/kg.) and the disposable aromatic hydrocarbons deep hydrogenation saturation catalyst bed by amorphous silicon aluminium Supported Pt Nanoparticles of the present invention-palladium precious metal of hydrogen, thereby prepare the food grade naphthenic base white oil that meets the GB/T4853-94 standard.
The refining processing condition of one section deep hydrogenation of the present invention and aromatic saturation are: reaction pressure 6.0MPa～20.0MPa, and 180 ℃～300 ℃ of temperature of reaction, hydrogen to oil volume ratio 500～1000: 1, air speed 0.5～2.0h
-1
The food grade naphthenic base white oil of the present invention's preparation, its chemical stability can satisfy American Pharmacopeia USP for the requirement of medicinal white oil readily carbonizable substance, also meet American National formulary NF to the requirement of medicinal white oil sulphur content, satisfy equally European Pharmacopoeia for the third time [Dan, the 23rd [Dan of American Pharmacopeia USP, the FDA of U.S. food Drug Administration for " directly " edible 21.CFR 172.927 with for the 21.CFR 178.3620 (a) of " indirectly " Food Contact, the requirement of 21.CFR 172.878.
GB/T4853-94 food-level white oil standard sees Table 1.
Table 1GB/T4853-94 food-level white oil standard
Embodiment
Cycloalkyl hydrogenated base oil raw material used in the present invention is the Karamay Petrochemical Company production and sales, and its character sees Table 2.
Table 2 cycloalkyl hydrogenated base oil character
Embodiment 1
Adopt the aromatic hydrocarbons deep hydrogenation saturation catalyst of amorphous silicon aluminium Supported Pt Nanoparticles of the present invention-palladium precious metal, the naphthenic oil 1 of describing in the table 2 is as raw material, under one section deep hydrogenation and aromatic saturation process for refining condition, 40 ℃ of kinematic viscosity central values have been prepared at 45mm
2The food grade naphthenic base white oil of/s, test conditions and prepared food grade naphthenic base white oil product property see Table 3.
40 ℃ of kinematic viscosity central values of table 3 the present invention preparation are at 45mm
2The food grade naphthenic base white oil of/s
Embodiment 2
Adopt the aromatic hydrocarbons deep hydrogenation saturation catalyst of amorphous silicon aluminium Supported Pt Nanoparticles of the present invention-palladium precious metal, the naphthenic oil 2 of describing in the table 2 is as raw material, under one section deep hydrogenation and aromatic saturation process for refining condition, 40 ℃ of kinematic viscosity central values have been prepared at 150mm
2The food grade naphthenic base white oil of/s, test conditions and prepared food grade naphthenic base white oil character see Table 4.
40 ℃ of kinematic viscosity central values of table 4 the present invention preparation are at 150mm
2The food grade naphthenic base white oil of/s
Embodiment 3
Adopt the aromatic hydrocarbons deep hydrogenation saturation catalyst of amorphous silicon aluminium Supported Pt Nanoparticles of the present invention-palladium precious metal, naphthenic oil 3 described in the table 2 is as raw material, under one section deep hydrogenation and aromatic saturation process for refining condition, 40 ℃ of kinematic viscosity central values have been prepared at 560mm
2The food grade naphthenic base white oil of/s, test conditions and prepared food grade naphthenic base white oil character see Table 5.
40 ℃ of kinematic viscosity central values of table 5 the present invention preparation are at 560mm
2The food grade naphthenic base white oil of/s
Embodiment 4
Longevity test: use one section deep hydrogenation of the present invention and aromatic saturation process for refining, we have also carried out stability and longevity test that 10ml little negative test device prepares food grade naphthenic base white oil, and test-results shows, in air speed greater than 0.5h
-1Condition under continuous operation after 2000 hours, 40 ℃ of kinematic viscosity central values of preparation are at 560mm
2The food grade naphthenic base white oil product of/s, its color, readily carbonizable substance all meet GB/T4853-94 food-level white oil standard.
Claims (1)
1. a method of utilizing precious metal aromatic hydrocarbon saturation catalyst to prepare food grade naphthenic base white oil is characterized in that: take naphthenic oil 3 as raw material, under one section deep hydrogenation and aromatic saturation process for refining condition, prepare 40 ℃ of kinematic viscosity central values at 561.7mm
2The food grade naphthenic base white oil of/s carries out deep hydrogenation and aromatic saturation process for refining condition is: reaction pressure 15MPa, 250 ℃ of temperature of reaction, hydrogen to oil volume ratio 1000:1, air speed 0.8h
-1
The character of described naphthenic oil 3 is: 20 ℃ of density 886.9kg/m
3, 40 ℃ of viscosity 568.8mm
2/ s, the Saybolt color is+No. 21, by readily carbonizable substance and sulfuric acid color developing detection, the carbon type is not distributed as 35.8CN%, sulphur content 2.0mg/kg, nitrogen content 1.0mg/kg, arsenic 1.0mg/kg, plumbous 1.0mg/kg,＜2.0mg/kg contains aromatic hydrocarbons 4.39% to heavy metal;
The catalyzer of described deep hydrogenation and aromatic saturation process for refining is the aromatic hydrocarbons deep hydrogenation saturation catalyst of amorphous silicon aluminium Supported Pt Nanoparticles-palladium precious metal, and specific surface area is 200～350cm
2/ g, pore volume are 0.6～1.0ml/g, and mean pore size is at 5～15nm, wherein, the aperture be the pore volume of 100～1000nm account for total pore volume 8%～20%;
In the amorphous silicon aluminium carrier of the aromatic hydrocarbons deep hydrogenation saturation catalyst of described amorphous silicon aluminium Supported Pt Nanoparticles-palladium precious metal, SiO
2Content is 60%～40% of vehicle weight, Al
2O
3Content is 40%～60% of vehicle weight, and this carrier is the slurries with silicoaluminate, through the powder that overaging, filtration, washing, drying program prepare, is that 0.4～0.45ml/g, surface-area are 200～240m with binding agent with total pore volume
2The pseudo-boehmite of/g is mediated, extruded moulding is the amorphous silicon alumina supporter;
The content of precious metal master active ingredient Pt in the catalyzer accounts for 0.1～0.5% of catalyst weight, and what the content of auxiliary agent Pd accounted for catalyst weight is 0.3～0.8%, and the gross weight of Supported Pt Nanoparticles-palladium accounts for 0.4%～1.3% of catalyst weight;
Described naphthenic oil 3 is the Karamay Petrochemical Company production and sales.
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| CN103041833B (en) * | 2011-10-17 | 2015-01-14 | 中国石油化工股份有限公司 | Aromatic hydrogenation saturation catalyst, preparation method thereof and aromatic hydrogenation catalytic method |
| CN106753550B (en) * | 2016-11-16 | 2018-07-20 | 中国海洋石油集团有限公司 | A kind of food-level white oil and preparation method thereof |
| JP7158953B2 (en) * | 2017-08-18 | 2022-10-24 | 中国石油化工股▲ふん▼有限公司 | Catalyst for producing light aromatic hydrocarbons from heavy aromatic hydrocarbons, production method and application thereof |
| CN109897671B (en) * | 2017-12-11 | 2021-04-30 | 中国石油天然气股份有限公司 | Preparation method of food-grade white oil |
| CN111073698B (en) * | 2018-10-18 | 2021-12-17 | 中国海洋石油集团有限公司 | Production method of food-grade white oil with low pour point and cloud point and food-grade white oil |
| CN111334330B (en) * | 2018-12-19 | 2021-09-28 | 中国石油天然气股份有限公司 | White oil for poultry vaccine injection and preparation method thereof |
| CN116410783A (en) * | 2021-12-31 | 2023-07-11 | 中国石油天然气股份有限公司 | Hydrogenation method for producing food-grade white oil |
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| CN1952066A (en) * | 2005-10-19 | 2007-04-25 | 中国石油化工股份有限公司 | Hydrogenation process of producing food-level white oil |
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| CN1952066A (en) * | 2005-10-19 | 2007-04-25 | 中国石油化工股份有限公司 | Hydrogenation process of producing food-level white oil |
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| Title |
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| 何萍等.加氢法生产中高粘度环烷基食品级白油工艺研究.《润滑油》.2005,第20卷(第6期),19-25. * |
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