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Patent Searching and Data


Matches 601 - 650 out of 745

Document Document Title
JP07242570
PURPOSE: To provide a method for producing a hydrocarbon solvent, substantially without containing an aromatic hydrocarbon and disrupting the environment and nontoxic to the human body due to a low content of n-hexane. CONSTITUTION: This...  
JP07228876
PURPOSE: To provide a preparation process for a lubricating base oil having an extremely high viscosity index. CONSTITUTION: A process for the preparation of a lubricating base oil comprises subjecting a waxy raffinate to a pour point re...  
JP07216366
PURPOSE: To obtain a specified-octane number gasoline fraction with a reduced benzene content by mixing a distillate obtained by hydrogenating a light reformate with a straight distilled 5 or 6C fraction and isomerizing the mixture with ...  
JP07082573
PURPOSE: To treat petroleum at a low cost with a simple apparatus by distilling a crude oil under the normal pressure to separate it into a residual oil and a distillate oil and hydrogenating the distillate oil collectively with one hydr...  
JP07062355
PURPOSE: To provide a hydrotreatment process whereby the formation of coke can be suppressed in the hydrotreatment of a heavy oil, and therefore problems such as the loss of catalytic activity, the stoppage of a heat exchanger and the wo...  
JP07062357
PURPOSE: To suppress the formation of coke in the treatment by hydrotreating a heavy oil and a specified amount of a heat-treated oil and/or a partially uncleus-hydrogenerated oil in the presence of a hydrodesulfurization catalyst having...  
JP07011259
PURPOSE: To efficiently carry out the lightening treatment for converting a heavy oil into a light fraction with a reduced level of impurities by hydrotreating the heavy oil with a specific catalyst and then performing the fluid catalyti...  
JP07003268
PURPOSE: To prepare a lubricating oil from waste or virgin polymers, especially from olefin polymers such as polyethylene. CONSTITUTION: A polymer is first thermally cracked in a fluidized bed under an inert condition to form a waxy prod...  
JP06322378
PURPOSE: To obtain a method for producing a petroleum product, capable of efficiently controlling properties during production and capable of reducing the necessary tank number as a result and an apparatus for producing the petroleum pro...  
JP06305988
PURPOSE: To produce methylnaphthalene and dimethylnaphthalenes in a higher yield. CONSTITUTION: A raffinate after removal of normal paraffin from a hydrogenated and desulfurized kerosine fraction is alkylated by using a light olefin, esp...  
JP06287574
PURPOSE: To obtain a hydrocarbon product of a low molecular weight by pouring water among storage parts containing a radioactive substance package and contained in a water decomposition tank, decomposing the water and surrounding each st...  
JP06184556
PURPOSE: To obtain a lower olefin from a hydrocarbon feed having at least a fraction boiling above the boiling point range of the lower olefin. CONSTITUTION: This method is constituted of thermal cracking of hydrocarbon feed, wherein at ...  
JP06172759
PURPOSE: To obtain a producing method of a lubricating oil having at least 120 viscosity index and at least -45°C pour point. CONSTITUTION: This lubricating oil is produced by oligomerizing a mixture of 5-20C 1-olefins comprising at lea...  
JP06158061
PURPOSE: To produce an oxidation-resistant arom. solvent having a high b.p. by removing arom. hydrocarbons from a hydrogenation product of a thermal cracking gasoline produced as a by-product in the thermal cracking of petroleum hydrocar...  
JP06158058
PURPOSE: To efficiently produce a hydrocarbon fuel suitable as a fuel. CONSTITUTION: (a) A mixture of carbon monoxide and hydrogen is brought into contact with a hydrocarbon synthesis catalyst at elevated temperature and pressure to prep...  
JP06057265
PURPOSE: To produce a diesel gas oil base having a good and stable hue by hydrogenating a petroleum cracking gas oil under specified conditions. CONSTITUTION: A petroleum cracking gas oil having a sulfur content of up to 0.5wt.% and a b....  
JP06041549
PURPOSE: To obtain efficiently medium distillates from a hydrocarbon feed by bringing a platinum catalyst supported on a carrier comprising amorphous silica-alumina starting material having a specified pore volume into contact with the h...  
JP06017059
PURPOSE: To upgrade the quality of heavy oil fractions containing polynuclear aromatics by oxidizing carbonaceous raw materials in a multi-phase system including an aqueous phase under low severity conditions and further by applying deox...  
JP06017057
PURPOSE: To remarkably reduce the formation of carbonaceous substances, prolong the period of continuous running, and increase the yield of a light liq. product in the process for converting a heavy oil into a light oil. CONSTITUTION: 10...  
JP05302088
PURPOSE: To produce a hydrocarbon fuel with a high selectivity from a specified hydrocarbon feedstock by bringing the feedstock into contact with a specific catalyst in the presence of H2 at elevated temp. and pressure. CONSTITUTION: Thi...  
JP05238962
PURPOSE: To simultaneously obtain a tert. amyl alkyl ether-rich fraction and an n-pentane-rich fraction from a 5C fraction contg. isopentenes, cyclopentene and dichloropentadiene. CONSTITUTION: An olefin-rich 5C hydrocarbon fraction cont...  
JP05230473
PURPOSE: To provide the title process whereby a naphtha fraction and a kerosene and gas oil fraction can be obtained from a heavy hydrocarbon oil in high yield at good efficiency. CONSTITUTION: The title process comprises subjecting a he...  
JP05214350
PURPOSE: To obtain naphtha in high yield from a product of a Fischer-Tropsch synthesis by bringing a hydrocarbon feed stock having a b.p. above the b.p. range of the naphtha unto contact with a platinum catalyst supported on SiO2-Al2O3, ...  
JP05117667
PURPOSE: To produce a branched olefin by isomerizing only olefins in a gasoline containing olefins and highly unsaturated hydrocarbons in a good yield. CONSTITUTION: A raw material stream of olefins having b.p. within a gasoline range co...  
JP05098270
PURPOSE: To provide the title process by which a naphtha fraction and a kerosene and gas oil fraction can be efficiently produced from a heavy hydrocarbon oil in high yields. CONSTITUTION: The title process comprises hydrodemetallizing a...  
JP04359090
PURPOSE: To obtain the title solvent having a low mixed aniline point, excellent solubility and a small amount of evaporation residue at a low cost by reforming kerosine fraction or raffinate to give an oil and hydrogenating the oil in t...  
JP04320491
PURPOSE: To provide a novel integrated process for preparing high octane gasoline blending components. CONSTITUTION: This novel integrated process comprises the steps of: dehydrogenating paraffin hydrocarbons 12 by a system 14 to prepare...  
JP04320489
PURPOSE: To provide a process for preparing a recarburizer coke having low S content and low N content without deactivating a hydrogenation catalyst by subjecting a decant oil contg. considerable amts. of S and N to a plurality of specif...  
JP04285691
PURPOSE: To obtain a method for reforming hydrocarbons into a hydrogen- containing gas, efficiently reducing sulfur content in the hydrocarbons to an extremely low concentration, greatly prolonging a life of reforming catalyst and preven...  
JP04227792
PURPOSE: To refine a heavy slurry oil fraction at good efficiency by dispersing catalyst fines in a feed oil, passing the mixture through a hydrovisbreaker to lower the viscosity, separating the effluent into higher and lower boiling fra...  
JP04224892
PURPOSE: To develop a method for refining crude oil, which can reduce equipment cost and operating cost, can raise the yield of intermediate fractions such as kerosine and gas oil, and makes it possible to perform stable operation by sim...  
JP04132794
PURPOSE: To simply obtain a light hydrocarbon oil distillate by applying hydrocracking operation to a first hydrocarbon oil fraction and subsequently applying catalytic cracking operation to a second hydrocarbon oil fraction and separati...  
JP04110394
PURPOSE: To produce gasoline having a high octane value and low in sulfur content and diesel fuel of improved quality at the same time by hydrogenating cycle oil separated after catalytic cracking and subjecting the hydrogenated oil to h...  
JP03199290
PURPOSE: To provide a process for preparing low-sulfur and high-sulfur cokes which can efficiently obtain low-sulfur and low-sulfur cokes respectively from a heavy fraction and a light fraction by catalytically hydrogenating an untreated...  
JP03182592
PURPOSE: To enable a selective and continuous preparation of aromatic- containing hydrocarbon product by subjecting hydrogen and an olefin-containing hydrocarbon starting material to hydrogenation reaction, then subjecting the resulting ...  
JP03177496
PURPOSE: To improve the quality of a sulfur-contg. feedstock by reforming the feedstock contg. a hydrocarbon mixture which boils in the gasolin range and then hydrogenating the oil to recover the product having an increased aromatic cont...  
JP03170598
PURPOSE: To simultaneously produce high-octane gasoline and low-sulfur, high- cetane diesel fuel by hydrocracking dealkylated stock oil and recycling part of a distillate fraction which boils at a temperature slightly higher than the gas...  
JP03119093
PURPOSE: To provide a lubricating oil of a high viscosity index which has improved heat stability, by isomerizing under specific conditions a base material for a lubricating oil comprising saturated oligomerization products of an α-olef...  
JP03115837
PURPOSE: To simplify and make accurate an analysis by integrating the absorbance of ultraviolet rays at a specific wavelength of aromatic series compound into an energy function, comparing the result with a predetermined value, and then ...  
JP02283794
PURPOSE: To obtain a polyolefin lubricant excellent in flowability, viscosity characteristics, low-temp. properties, etc., at a low cost by separating a linear olefin component from a sulfur-contg. coker distillate feed material obtd. by...  
JP02272096
PURPOSE: To obtain continuously a liquid fuel and a fraction of a lower boiling range highly selectively by catalytically cracking a heavy vacuum gas oil fraction obtained by distilling a hydrocracked product of a heavy cycle gas oil fra...  
JP02261540
PURPOSE: To increase the rates of desulfurization, denitrification and metal removal by supporting a specified amt. of metallic elements belonging to the groups VIII and VIB of the periodic table on a carrier consisting of specified amts...  
JP02247297
PURPOSE: To obtain a new lubricating base oil with high aromaticity while keeping a high viscosity index, by bringing a lubricating oil feeding raw material with a high viscosity index into contact with a dehydrogenation catalyst. CONSTI...  
JP02247135
PURPOSE: To efficiently obtain the title compound having low sulfur and nitrogen contents by recovering n-paraffins from a hydrogenated and desulfurized kerosine fraction to give raffinate, subjecting a specific fraction of the raffinate...  
JP02247134
PURPOSE: To obtain the title compound having extremely low sulfur and nitrogen contents with a long catalytic life and in high yield by hydrogenating a kerosine fraction to make sulfur and nitrogen contents ≤ specific concentrations, s...  
JP02247137
PURPOSE: To obtain the subject compounds having reduced sulfur and nitrogen contents in good yield by reforming the specific distillate of a raffinate remained after the recovery of normal paraffin from a hydrogenation-desulfurized keros...  
JP02247136
PURPOSE: To obtain the subject compound having extremely reduced sulfur and nitrogen contents with a long catalyst life by hydrogenating a kerosine distillate to reduce sulfur and nitrogen contents to ≤ specific concentrations, reformi...  
JP02229890
PURPOSE: To obtain a lubricating oil with a high viscosity index in a high yield by reacting an oligomer prepd. on a specific zeolite with an α-olefin, removing low-boiling substances from the resultant product, and hydrogenating the re...  
JP02225593
PURPOSE: To produce gasoline having a low benzene content and a high octane value by mixing an alkylated fraction obtained by reacting a light fraction with cracking gas in the presence of a specified catalyst with a heavy fraction. CONS...  
JP02222490
PURPOSE: To efficiently perform the coking of hydrocarbon by coking a Conradson carbon-containing raw material and subsequently separating a heavy bottom fraction from the obtained product to hydrogenate the same and separating a formed ...  

Matches 601 - 650 out of 745