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JPS5980491A |
(57) [Abstract] Since this gazette is application data in front of an electronic application, the data of an abstract is not recorded.
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JPS5917154B2 |
An improved process for dewaxing waxy oils which have been produced by hydrotrcating to produce a base oil suitable for the production of high-quality lubricating oil. The dewaxing process is carried out utilizing a solvent and a dewaxin...
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JPS5916592B2 |
PURPOSE:To prepare high-quality turbine oils under low pressure at low temperature by purifying the lubricating oil component with hydrogen in the presence of a specific catlayst having an improved life.
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JPS5924790A |
Deasphalted oils and- hydrocarbon oil distillates are produced from asphaltenes-containing hydrocarbon mixtures by a process comprising converting an asphaltenes-containing hydrocarbon mixture using a catalytic hydrotreatment into a prod...
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JPS592319B2 |
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JPS58201889A |
Distillates are prepared from asphaltenes-rich feeds by a process comprising subjecting the feed to thermal cracking, and subjecting the distillation residue of the cracked product to a combination of solvent deasphalting and catalytic h...
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JPS58189293A |
A process for the separation of solids from liquid hydrocarbons in which liquid hydrocarbons comprising oils, asphaltenes and pre-asphaltenes containing insoluble solids are contacted with a volatile solvent compatible with the liquid hy...
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JPS58183793A |
PURPOSE: The reaction mixture from the reactor is separated into liquid and gas, then the gas is cooled by contacting with the product to remove the light fraction and increase its hydrogen purity, while the liquid is distilled along wit...
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JPS58141288A |
Distillates are prepared from asphaltenes-rich feeds by a process comprising subjecting the feed to solvent deasphalting, and subjecting the resulting asphaltic bitumen fraction to a combination of catalytic hydrotreating and thermal cra...
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JPS58132082A |
A process for purifying used oil and the like comprising reacting the oil with a treating agent that will form solids from the ash-forming components of the oil, separating the solids from the oil, and subjecting at least a portion of th...
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JPS5834516B2 |
A process for the production of an essentially ash-free oil stock from a lubricating oil containing ash-forming components comprising (a) contacting said lubricating oil with an aqueous ammonium salt treating agent; (b) removing a major ...
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JPS5833911B2 |
25859 Abstract of the Disclosure An integrated process universally applicable for the reclaiming of used lubricating oils, regardless of the contaminants or previous additive systems contained therein, is provided to produce an intermedi...
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JPS5898386A |
This process for converting a charge of heavy oils or petroleum residues to gaseous and distillable hydrocarbons comprises the steps of (a) admixing said charge with a first hydrogenated recycle oil obtained in a subsequent step of the p...
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JPS5826391B2 |
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JPS5887191A |
An improved hydrogen donor for hydrogen donor diluent cracking is provided by extraction with naphtha from the cracked product and hydrogenation by hydrogen transfer from a lower boiling hydrogen donor such as tetralin.
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JPS5824471B2 |
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JPS5823434B2 |
A method for the operation of a hydrodewaxing unit wherein a petroleum distillate is separated into two streams, one having a pour point of above about 30 DEG F, and the other having a pour point of less than about 30 DEG F., the 30 DEG ...
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JPS5821674B2 |
1476428 White oils SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 1 July 1974 [3 July 1973] 31602/73 Heading C5E White oils are produced from wax by a twostage hydrogenation process in which the first stage is carried out using a sulphidi...
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JPS5819720B2 |
1476426 Medicinal and technical white oils SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 1 July 1974 [3 July 1973] 31603/73 Heading C5E White oils are produced from wax containing less than 30% by weight of aromatics by hydrogen treatmen...
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JPS5817793B2 |
PURPOSE:To prepare a debitumenized oil of reduced metal content and a heavy asphalt of reduced sulfur content, by hydrogenation of a heavy oil in presence of a demetallizing catalyst followed by debitumenizing treatment.
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JPS5834892A |
Reduction of the pour point of a hydrocarbon charge stock boiling in the range of 204 DEG to 566 DEG C (400 DEG F to 1050 DEG F), and particularly a lubricating oil charge stock boiling from 316 DEG to 566 DEG C (600 DEG F to 1050 DEG F)...
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JPS5819388A |
Unsaturated hydrocarbons and mixtures in which the latter are present are treated with anion exchangers prior to hydrogenation and are then hydrogenated catalytically in a known manner. The treatment with anion exchangers is carried out ...
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JPS585228B2 |
Hydrocarbon oils, particularly oils which have a high boiling temperature, are treated to remove organic sulphur compounds by subjecting a mixture of a hydrogenating gas, e.g. a gas containing at least 90% v/v hydrogen and is substantial...
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JPS584959B2 |
A re-refining process is described by which high-quality finished lubricating oils are prepared from used waste lubricating and crankcase oils. The used oils are stripped of water and low-boiling contaminants by vacuum distillation and t...
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JPS57164195A |
A process of recycling motor oil is provided wherein used oil is subjected to solvent extraction and the hydrocarbon extract is hydrogenated to produce a high quality stock.
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JPS57151692A |
An improved process for stabilizing catalytically dewaxed hydrocracked lubricating oils to ultraviolet radiation using a nickel-tin catalyst is disclosed.
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JPS5743118B2 |
Lube oils which may be used as direct multigrade lube oils are obtained from paraffins, particularly from hydrocracking paraffins, by hydrogenation in the presence of both a group VIII noble metal carried on halogenated alumina and ammon...
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JPS57145178A |
A waxy fuel oil that contains a catalytically deleterious contaminant is treated with a crystalline zeolite under sorption conditions followed by catalytic dewaxing with a crystalline zeolite exemplified by ZSM-5 to produce dewaxed fuel ...
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JPS5740879B2 |
This invention relates to a process for continuously converting a heavy oil into an asphaltene-metal-free oil by hydrotreating said heavy oil to crack asphaltenes selectively and remove heavy metals such as vanadium and nickel from said ...
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JPS5740880B2 |
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JPS57139182A |
A hydrocarbon feed for use in a catalytic conversion process that utilizes a zeolite catalyst, and that contains a catalytically deleterious impurity, is refined by contact with a zeolitic sorbent. The invention is applicable to dewaxing...
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JPS5726551B2 |
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JPS5724395B2 |
A method of treating a mineral lubricating oil feedstock comprises contacting the mineral oil feed-stock counter-currently with furfural in a first extraction column and recovering from the first column a primary raffinate and a primary ...
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JPS5717912B2 |
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JPS5759987A |
PURPOSE: To lessen the amount of hydrogen used in the second hydrogenating and liquefying reaction, to raise the efficiency of denitration, and to obtain a clean liquefied oil, by washing the liquid reaction product of the first hydrogen...
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JPS5717037B2 |
1429494 Hydrocracking; obtaining lubricating oil SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 4 April 1973 [6 April 1972 19 Dec 1972] 16140/73 Heading C5E A wax, e.g. a slack wax from the dewaxing of a residual oil (straight-run or crac...
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JPS577199B2 |
Normally gaseous olefins are produced from an atmospheric petroleum residue feedstock by:
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JPS573716B2 |
1440230 Lubricating oils SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 2 Aug 1973 [4 Aug 1972] 36732/73 Heading C5E A feed composed of a vacuum distillate and/or deasphalted residual mineral oil is catalytically hydrocracked in the prese...
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JPS56166291A |
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JPS56151787A |
PURPOSE: A raffinate, which is obtained by solvent extraction of a paraffinic crude oil or a mixed crude oil under conditions, is solvent extracted again and the resultant extract is purified to produce an extremely good-quality naphthen...
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JPS56131690A |
Catalytic cracking or steam cracking effluents are desulfurized without substantial decrease of their octane number by subdividing said effluent into two fractions of different boiling ranges, the heavier of which is admixed with hydroge...
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JPS5640197B2 |
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JPS56116787A |
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JPS5549118B2 |
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JPS5534200B1 |
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JPS5564528A |
A process for virtually complete isomerization of the normal paraffin hydrocarbons contained in a feed stream consisting essentially of mixed normal and non-normal hydrocarbons, wherein the feedstock is first passed through an isomerizat...
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JPS5515514B2 |
Low sulfur-content petroleum oil stocks are prepared by contacting a sulfur-containing oil stock with an alkali metal, preferably sodium, or an alkali metal alloy, preferably sodium/lead, thereby producing a mixture comprising a low sulf...
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JPS54156015A |
In the catalytic hydrotreating of pyrolysis gasoline, the major portion of dienes present in the hydrotreated product concentrate in the C5 fraction. The C5 fraction is separated from a first portion of the hydrotreated effluent and a po...
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JPS54142206A |
A process for the reprocessing of used lubricating oil wherein said oils are treated with a mixture of potassium hydroxide and sodium hydroxide.
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JPS54101807A |
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