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JP2001031981A |
To provide a process for hydrogenation of an intermediate fraction of distillate in two continuous zones containing an intermediate stripping zone of an effluent flowing out from a first zone by condensation of a heavy material discharge...
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JP2000345171A |
To provide an improved flexible method for producing a base oil and a distillate by a hydroisomerization reformation and a subsequent catalytic deparaffinization on a slightly dispersed catalyst, by which the base oil having a greatly hi...
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JP2000345170A |
To provide an improved flexible method for producing a base oil and a middle distillate by a hydroisomerization reformation accompanying a catalytic deparaffinization treatment, by which the base oil having a greatly high quality, namely...
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JP2000516663A |
(57) [Summary] The present invention relates to methods for removing heteroatoms from petroleum and chemical hydrocarbon streams, especially during process excursions. The present invention comprises at least two regions through which a ...
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JP2000345172A |
To provide a method for producing a low sulfur light oil, by which the low sulfur light oil having a high quality can efficiently be produced.In this light oil-desulfurizing system for producing a low sulfur light oil, a light oil LGO as...
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JP2000336375A |
To provide the subject method for obtaining a transport fuel of high added value comprising introducing a hydrocarbon feed including gas oil into a cracking reactor where the hydrocarbon feed is treated under specified conditions to conv...
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JP2000334300A |
To provide a catalyst which is used in a conversion process of heavy duty supply raw material and more particularly paraffin supply raw material containing metal reduced in weight.This catalyst contains at least one kind of noble metal d...
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JP2000279807A |
To enable efficient desulfurization at low temp. by using a catalyst obtained by supporting palladium on a refractory inorg. carrier. A catalyst is obtained by supporting palladium on a refractory inorg. carrier. As the refractory inorg....
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JP2000282060A |
To obtain high quality gas turbine fuel oil at high yield. Crude oil is subjected to atmospheric distillation so as for light oil to be separated from atmospheric residue and the light oil is subjected to the first hydrogenation processi...
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JP2000256677A |
To provide a hydrotreating method of gas oil capable of manufacturing a high quality low sulfur gas oil effectively. This hydrotreating system of gas oil for hydrotreating a charge gas oil LGO comprises a first hydrotreating unit 10 for ...
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JP2000239668A |
To obtain a low-sulfur-content gasoline by hydrogenating unsaturated sulfur-containing compounds in a sulfur-containing gasoline fraction and then decomposing saturated sulfur-containing compounds. A gasoline fraction obtained with a cat...
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JP2000212579A |
To obtain high quality and high calorie lamp oil where smoke point or the like is improved, easily obtainable from heavy fractions of petroleum by catalytically cracking raw oil to be catalytically cracked, by the fractional distillation...
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JP2000212578A |
To provide a method for producing low sulfur light oil, by which high quality, low sulfur light oil is efficiently produced. The light oil production system for producing low sulfur light oil is constituted in such a way that straight-ru...
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JP3065816B2 |
A process for the production of a high viscosity index, low viscosity lubricating base oil having a kinematic viscosity of 3.0 to 5.0 mm<2>/s at 100 DEG C, a viscosity index of 120 or more and a pour point of -10 DEG C or less, while sim...
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JP2000178566A |
To reduce the deactivation of a catalyst caused by coke thereby prolonging the life of the catalyst and extending the operation time for hydrotreatment by bringing a feedstock hydrocarbon oil into contact with an adsorbing agent before t...
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JP3057125B2 |
A process for the production of a high viscosity index, low viscosity lubricating base oil having a kinematic viscosity of 3.0 to 7.5 mm<2>/s at 100 DEG C, a viscosity index of 120 or more and a pour point of -10 DEG C or less, while sim...
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JP2000160170A |
To provide an improved method for desulfurizing a hydrocarbon stream in the presence of hydrogen.This method comprises the following stages, i.e., (a) dividing another stream from a hydrocarbon reformed with steam and thereby containing ...
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JP2000136392A |
To obtain a treated gas oil free from a problem with color and has a high commodity value by hydrodesulfurizing gas oil at a specified temperature or higher in the presence of a catalyst to reduce the sulfur content to a specified value ...
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JP3038390B2 |
Process for elimination of mercury in hydrocarbon charges wherein said charge is contacted, under hydrogen, with a catalyst containing at least one metal from the group consisting of nickel, cobalt, iron and palladium followed by-or mixe...
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JP3035113B2 |
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...
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JP3011782B2 |
A formulated transformer oil is produced by a process involving fractionating the product from a hydrocracker to obtain a distillate boiling in the transformer oil range, dewaxing the fraction, optionally hydrofinishing the dewaxed fract...
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JP2000044967A |
To provide a process and an apparatus capable economically obtaining vacuum gas oil from reduced crude oil without heating the reduced cruse oil. The process for treating petroleum comprises subjecting the reduced crude oil 1c obtained b...
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JP3005697B2 |
Process for the removal of mercury throughout a steam cracking plant, characterised in that the regeneration ends in the injection of the regenerating gas into one of the demercurising active masses so that there is substantially no trac...
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JP2995269B2 |
A process for reducing the concentration of metal contaminants, such as vanadium and nickel, in a petroleum distillate or other hydrocarbonaceous liquid is disclosed. The method comprises demetallizing the distillate by contact with an a...
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JP2984946B2 |
Process for hydrotreatment, in at least two stages, of a heavy hydrocarbon fraction containing asphaltenes, sulphur-containing impurities and metal impurities, in which: a) in at least one first stage (26,27) known as hydrodemetallation,...
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JPH11315038A |
To provide an economical method for the isolation of high-purity cyclopentane. This method comprises the following process : a low-boiling fraction with a boiling point lower than that of cyclopentene and a high-boiling fraction comprisi...
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JP2967119B2 |
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JP2954392B2 |
Petroleum waxes are converted to high viscosity index lubricants by a hydroisomerization process in which the wax feed is subjected to hydroisomerization over a low acidity zeolite isomerization catalyst which effects a preferential isom...
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JP2948968B2 |
PURPOSE: To efficiently remove iron components from a petroleum-based distilla tion residue oil by intermittently washing ferromagnetic packings in a high- gradient magnetic separator with the distillation residue oil (hydrogenated re fi...
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JP2938487B2 |
PURPOSE:To economically obtain a high quality lube base oil having a high content of an isoparaffin, a monocyclic naphthene, etc., and a low polycyclic aromatic matter content by hydrocracking a vacuum distillation oil, etc., in the pres...
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JPH11189775A |
To produce an oil useful as an electric insulating oil, a lubricating oil or the like, and having a lower fluid point without applying severe treating conditions by subjecting a fraction of distillate of mineral oil to a hydrogenating wa...
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JP2904774B2 |
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JP2898440B2 |
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JP2890060B2 |
Lubricating base oils having a high viscosity index, preferably at least 135, are manufactured by catalytic hydroisomerisation of a hydrocarbonaceous feedstock, derived from a waxy crude oil, which feedstock has not been treated to remov...
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JPH1161148A |
To provide a method for treating waste plastics capable of converting even such waste plastics as to include chlorine-contg. plastics like polyvinyl chloride into gaseous and liquid hydrocarbons virtually free from chlorine. This method ...
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JPH1161147A |
To provide a method for treating waste plastics, capable of converting even such waste plastics as to include chlorine-contg. plastics like polyvinyl chloride into gaseous and liquid hydrocarbons virtually free from chlorine. This method...
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JPH11501697A |
A delayed coking process in which a flash zone gas oil stream from the bottom of the coker fractionator is upgraded by removing suspended solids and then hydroprocessing the stream to make it more attractive as a feed to a fluidized bed ...
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JPH10511425A |
(57) [Summary] The present invention relates to a method for producing a high viscosity index lubricant having a viscosity index of at least 125 from a waxy hydrocarbon feed having a wax content of at least 40% by weight. The method comp...
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JPH10510565A |
Petroleum wax feeds having a low oil content are converted to high viscosity index lubricants by a two-step hydrocracking-hydroisomerization process in which the wax feed is initially subjected to hydrocracking under mild conditions with...
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JP2804369B2 |
A hydrotreating process if provided in which resid and resins are hydrotreated with hydrogen-rich gases in the presence of a hydrotreating catalyst in an ebullated bed reactor.
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JPH10505364A |
A method is provided to remove metals from a residual oil containing an initial amount of a selected metal, the method comprising the steps of: providing a vessel for exposing the residual oil to a DC electric field having a strength of ...
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JPH10505381A |
A process for catalytically desulfurizing cracked fractions in the gasoline boiling range to acceptable sulfur levels uses an initial hydrotreating step to desulfurize the feed with some reduction in octane number, after which the desulf...
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JP2758028B2 |
Waxy distillates, or raffinates containing from as little as 10% wax but more typically about 30% wax or more are upgraded by a process comprising the steps of hydrotreating the waxy oil under conditions which convert less than 20% of th...
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JP2724512B2 |
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JP2724508B2 |
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JP2724510B2 |
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JP2724633B2 |
The present invention is directed to a process for treating hydrotreated naphtha which involves treating the naphtha over massive nickel catalyst followed by treating the naphtha over a metal oxide under conditions effective for removing...
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JP2673907B2 |
This invention relates to a process for isomerization of a hydrocarbon feed stream, by passing said feed stream prior to isomerization over a first shape-selective separatory molecular sieve having a pore size of 4.5 x 4.5A or smaller, t...
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JP2649474B2 |
PURPOSE: To provide insulating oil superior to oxidation stability, retarding capability of tanĪ“ max, and hydrogen gas absorbency, and to provide its manufacture. CONSTITUTION: The first purified mineral oil whose total nitrogen compone...
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JP2630732B2 |
PURPOSE: To provide a method for efficiently eliminating mercury or the like from hydrocarbons by transforming mercury contained in a charge raw compound into elemental mercury, fractionating effluents obtained from this transforming rea...
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