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JP4271033B2 |
Method for preventing fouling and corrosion caused by ammonium chloride and ammonium sulphates, characterised in that it comprises injecting as an additive a choline or a derivative thereof.
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JP4246397B2 |
The invention relates to a method for reprocessing waste oils and producing high-grade base oils, whereby waste oil is treated by means of distillation, thin-film evaporation in a high vacuum, optional fractionation for separation into l...
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JP4238948B2 |
An Anti-gelling agent for a hydrocarbon mixture containing a conjugated diene, which comprises (a) at least one compound selected from the group consisting of compounds having an NO radical in the molecule, and precursor compounds capabl...
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JP4227928B2 |
To inhibit coking and prolong life of a system for producing hydrogen and to provide a hydrocarbon oil having high production efficiency of the hydrogen with a small amount of produced carbon monoxide. The hydrocarbon oil for producing t...
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JP2009503228A |
A method and means for purifying petrochemical products in a circuit circulating such products at a pressure of about 2 to 6 bar, comprising heating the petrochemical product and maintaining the temperature to about 100 °C, passing the ...
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JP4217324B2 |
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JP2008297437A |
To provide a manufacturing method of an ultralow-sulfur gas oil and a manufacturing apparatus therefor for manufacturing an ultralow-sulfur gas oil useful as gas oil from light cycle oil (LCO) distilled out by fluidized catalytic crackin...
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JP2008543893A |
Extraction of pure styrene with polymerization quality from styrene containing pyrolysis benzol fraction, by extractive distillation, comprises fractionation of the benzol fraction, in a partition column (2), into a C 8 core fraction (5)...
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JP4176982B2 |
"Process for determining the distillation characteristics of liquid petroleum products by express mini-distillation and apparatus permitting implementation of this process"Apparatus characterized by the fact that it includes:a distillati...
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JP2008533274A |
The invention relates to compositions comprising a blend of Group III basestocks and low volatility, low viscosity PAO basestocks. The blend is particularly useful for preparing finished lubricants that meet or even exceed the criteria f...
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JP4134391B2 |
An apparatus for separating and purifying saturated hydrocarbon comprises an extractive distillation column to which a material containing an unsaturated hydrocarbon and a solvent are fed and in which the unsaturated hydrocarbon is separ...
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JP4133176B2 |
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JP4126465B2 |
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JP4111550B2 |
High temperature flash distillation, for treating residual oils originating from crude oil refining, natural bitumen and/or tar sands, comprises feeding the oil to a mixer with granular hot coke, which serves as a thermal transfer medium...
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JP4106056B2 |
A differential vapor pressure (DYP) cell is disposed in a divided wall column that receives a feed comprising a first, second, and third component. A separation section on the feed side of the divided wall column separates the feed in a ...
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JP2008133471A |
To provide a device and a method for generating a diesel oil from a residual material containing hydrocarbons in an oil circuit having a portion for separating solid portions and a portion for distilling products generated from diesel.In...
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JP2008510877A |
A method for the determination of optimal pipestill operation comprising the steps of: feeding a crude oil feedstream into the pipestill wherein the crude oil feedstream is separated into boiling range fractions, performing a virtual ass...
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JP4069217B2 |
Reactive distn. process where the reactants are introduced, possibly diluted by a diluent and with an excess of one of the reactants, into at least one level of a reactive distn. zone which includes: (a) at least one catalytic reaction z...
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JP2008050303A |
To perform efficient operation of a distillation system 100 to remove heavy petroleum fraction and light petroleum fraction from cracked gas while keeping restricting conditions.A cracked gas is supplied to the lower stage of a distillat...
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JP2008505987A |
The charge gas from the thermal cracking of a hydrocarbon feedstock is processed in a front-end catalytic distillation hydrogenation system of an olefins plant to more effectively recover ethylene and propylene product and to process the...
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JP4050364B2 |
A petroleum processing method comprising the steps of: performing an atmospheric distillation of crude oil; collectively hydrodesulfurizing the resultant distillates consisting of gas oil and fractions whose boiling point is lower than t...
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JP2008007721A |
To provide a method for processing of the cleaning treatment oil in the distillation column in the heavy oil thermal cracking apparatus.The method for processing of the cleaned treatment oil after cleaning of the produced oil by thermal ...
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JP2007537351A |
Improved crude oil processing is achieved by viscoelastic shearing of crude oil at an elevated temperature. The shearing provides for an enriched light fraction and an enriched heavy fraction that can be more efficiently separated by dis...
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JP4020782B2 |
A process and apparatus are disclosed that relate generally to a process for reducing harmful or unwanted emissions during the production of asphalt, such as blue smoke. The process includes the introduction of a pump around of the wax o...
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JP4018143B2 |
PCT No. PCT/GB97/00106 Sec. 371 Date Nov. 19, 1998 Sec. 102(e) Date Nov. 19, 1998 PCT Filed Jan. 15, 1997 PCT Pub. No. WO97/28110 PCT Pub. Date Aug. 7, 1997A process for the separation of propylene from an input stream of C3 hydrocarbons...
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JP4011489B2 |
In the presence of a catalyst, at least one isoparaffin having 4 to 6 C atoms per molecule is reacted with at least one olefin having 2 to 6 C atoms per molecule in a liquid phase to obtain a product containing alkylate, a suspension con...
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JP4006546B2 |
The apparatus for reactive distillation comprises a distillation zone consisting of a draining zone and a rectification zone associated with an internal reactive zone comprising a catalytic bed in which transformation of the charge is ef...
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JP3984153B2 |
Batch distillation of a multi-component mixture containing three or more components using a distillation column (210) having at least a "first" distillation zone (1) and a second distillation zone (2) in two-way communication is improved...
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JP3974622B2 |
Disclosed herein is a process for efficiently and stably producing high-quality kerosene and gas oil from crude oil or crude oil from which naphtha fraction is removed through the hydrotreatment of the crude oil by using a specific hydro...
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JP2007224204A |
To heighten a treating capacity of an existing distillation column by suppressing flooding phenomena at the lower part of the distillation column without changing the internal structure of the lower part of the column in the distillation...
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JP3962919B2 |
To provide a metal anticorrosive with which the corrosion of device metal in a vapor generation device or a petroleum refining/petroleum chemical process can sufficiently be prevented even if its amount to be added is small and to provid...
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JP2007522270A |
A process for recovering hydrogen from a mixed hydrocarbon stream wherein the mixed hydrocarbon stream is subjected to a separation technique to produce a substantially hydrogen enriched stream, which is then recovered as hydrogen produc...
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JP3956592B2 |
To provide a method for separating and purifying conjugated dienes by which the formation of rubber-like materials in an apparatus can efficiently and stably be suppressed and an excess polymerization inhibitor don't remain in the conjug...
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JP2007521376A |
Novel methods of treating a Fischer-Tropsch product by distillation are disclosed. Such methods are capable of removing soluble (and ultra-fine particulate) contamination, fouling agents, and/or plugging precursors from the Fischer-Trops...
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JP2007517969A |
A process utilizing a low severity hydrocracker prior to a high severity hydrocracker for the processing of petroleum based and synthetic hydrocarbon feedstocks into distillate fuels and high quality lubricant base oils. The process mini...
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JP3939343B2 |
A liq distributor (1) for a column has liq. outlet holes (12), and corresp. fine distribution elements, (3), each with a guide wall (5). Each fine distribution element has a plate-shaped element (4) in contact with the guide wall. Betwee...
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JP3941151B2 |
To provide a method for preventing the polymn. of conjugated dienes whereby the formation of polymers in an extractive distillation apparatus is inhibited and soiling in the apparatus, pipe clogging, lowering in heat efficiency, etc., ar...
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JP3933580B2 |
A process for producing a diesel fuel stock from bitumen uses steam and a hydroisomerized diesel fraction produced by a gas conversion process, to respectively stimulate the bitumen production and increase the cetane number of a hydrotre...
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JP3933579B2 |
A process for producing a diesel fuel stock from bitumen uses steam, naphtha and a hydroisomerized diesel fraction produced by a gas conversion process, to respectively (i) stimulate the bitumen production, (ii) dilute it for pipeline tr...
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JP3928701B2 |
To provide a separation and purification method and apparatus whereby a polymerization inhibitor is charged quantitatively with a good operability without causing corrosion of an apparatus such as an extraction and distillation column by...
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JP3902934B2 |
To provide a distillation method capable of suppressing polymerization in a distillation tower. In this distillation method, raw material (a) mixed with steam from a cracking furnace after pyrolysis of naphtha is fed to a lower section o...
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JP2007508437A |
Naphthenic acid corrosivity of hydrocarbon feedstocks is correlated with the chemical composition of naphthenic acids, and especially with a ratio between an alpha fraction and a beta fraction of naphthenic acids. Contemplated plants, co...
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JP2007084768A |
To provide a method for treating a naphtha-reformed oil by which a gasoline base material is produced by using the naphtha-reformed oil as a raw material, and benzene and xylene fractions being petrochemical raw materials are separated w...
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JP3878686B2 |
To provide a method of characterizing a feed to a catalytic cracking process unit which can determine the chemical concn. of the kind of a starting compd. fed to catalytic cracking in real time, rapidly, and conveniently by measuring an ...
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JP3853062B2 |
To obtain an oil solution for textile processing having <3 wt.% polycyclic aromatic content and preventing trouble due to wax deposition and not causing discoloration after coating. This oil solution for textile processing comprises a mi...
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JP3847754B2 |
To produce a product liquid P having controlled fluctuation of properties by efficiently removing mercury from a liquid hydrocarbon L by properly controlling the overhead temperature T1 and the bottom temperature T2 of a distillation col...
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JP3846219B2 |
To enable a rectifying column to be continuously operated for a long time without adding an specified agent and without causing polymerization blocking in the column. This operation method for a rectifying column is characterized in that...
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JP3842700B2 |
To provide mixed solvent for separating an aromatic compound from a hydrocarbon mixture by extractive distillation. This mixed solvent comprises a main solvent, a solutizer, and a modifier, wherein the solutizer comprises one or more 8 t...
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JP3844383B2 |
To realize an efficient productivity increase and also to control a production line at a low cost, without requiring expensive analyzing equipment. At least one of temp., flow rate and pressure at a specific point of a production line is...
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JP3833318B2 |
To provide a means suitable for assuring a more uniform dwell time of a charge in an aging apparatus and the stability of a visbreaking residue. In the visbreaking method for a liq. heavy hydrocarbon charge, the charge is heated to a tem...
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