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WO/2003/044131A1 |
The invention concerns a method for hydrotreating of a hydrocarbon feedstock, comprising at least two reaction steps with intermediate fractionation of the effluent of the first step to eliminate unwanted impurities for the catalyst of t...
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WO/2003/033622A1 |
The present invention discloses a process for producing a low haze heavy base oil including the steps of: (a) providing a heavy waxy feed stream having an initial boiling point greater than 900 °F. and having a paraffin content of at le...
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WO/2003/027209A1 |
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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WO/2003/022390A2 |
A process for the management of an extractive distillation plant for the separation of pure aromatics from a parent mixture of aromatic and non−aromatic hydrocarbons with the use of a selective auxiliary substance is described, in whic...
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WO/2003/022958A1 |
A process for treating a crude containing natural gas comprising supplying the crude to a stabilization unit (3) to obtain a gaseous stream and crude oil; supplying a compressed, gaseous stream at a low temperature to the bottom of a fir...
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WO/2003/020849A1 |
A method for controlling an extractive distillation plant for the separation of pure aromatics from a starting mixture comprising aromatic and non-aromatic hydrocarbons is disclosed, using a selective adjunct, whereby the non-aromatic hy...
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WO/2003/006579A1 |
In an embodiment, the invention relates to a method for reducing coke in agglomeration in petroleum streams derived form coking processes. In a preferred embodiment, the invention relates to a method for mitigating filter fouling in a co...
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WO/2002/098514A1 |
The invention concerns a decontamination method using vacuum distillation of PCB's at temperature less than 500 °C in a vessel (1), and optionally heat treatment of the distillate in a mass furnace (12) under inert gas and in the absenc...
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WO/2002/094747A1 |
At least one isoparaffin with 4-6 carbon atoms per molecule is reacted in the presence of a catalyst with at least one olefin with 2-6 atoms per molecule in a liquid phase to form an alkylate. The isoparaffin and a suspension containing ...
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WO/2002/081417A1 |
A process for improved yields of heavier olefins from a substantially narrow range of lighter hydrocarbon feed stock containing olefins in a reaction distillation column comprising feeding a narrow range of hydrocarbon feed stock contain...
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WO/2002/077127A2 |
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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WO/2002/072740A1 |
The invention relates to a method for producing low-sulphur petrol from an initial petrol containing sulphur compounds comprising the following steps: a) the selective hydrogenation of the non-aromatic polyunsaturated compounds present i...
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WO/2002/064530A1 |
The invention relates to an extractive distillation composition for at least paritally separating a mixture of hydrocarbon compounds comprising: a. at least on one organic sulfoxide of the formula R¿1?-SO-R¿2?, and b, at least on one o...
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WO/2002/057392A1 |
The invention can be used for producing directly distilled gasoline, diesel fuel and masut. The essence of the invention lies in the following: stock is pumped through heat exchangers (4-6, 8-10) with the aid of a pumping equipment (2). ...
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WO/2002/053685A1 |
A method of removing low boiling sulfur compounds from naphtha boiling range streams. The naphtha boiling range stream is contacted with a high silica zeolite at effective conditions to convert lower boiling sulfur compounds to higher bo...
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WO/2002/049735A1 |
A pumping apparatus for pumping crude oil comprises a pump means operatively positioned in a crude oil pipe line for pumping oil therethrough, an engine operatively connected to the pump means for driving said pump means, a heater and fl...
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WO2001083642B1 |
A process for separating a feed mixture comprising at least one aromatic hydrocarbon and at least one non-aromatic hydrocarbon by extractive distillation (ED) utilizing a solvent mixture comprising sulfolane and at least one co-solvent. ...
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WO/2002/026915A1 |
A process for the fractional distillation of crude oil, which comprises the steps of: feeding a continuous current of crude oil at 310 - 400 °C into a turbomixer comprising a tubular cylindrical body (1) provided with a rotor (9) formed...
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WO/2002/024300A1 |
The invention relates to a method for carrying out the distillative separation of C¿5+? cuts into a low boiler fraction (A), a medium boiler fraction (B) and into a high boiler fraction (C) inside one or more partition columns (TK). A p...
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WO/2002/022528A1 |
A process for separating a first hydrocarbon, selected from the group consisting of aromatic hydrocarbons, cycloalkanes, cycloalkenes, cycloalkadienes and combinations thereof, from a close-boiling second hydrocarbon, selected from the g...
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WO/2002/011850A1 |
A method for separating used oil in a simple batch process into usable fractions. A pretreatment step involves forming a mixture of the used oil and specified pretreatment chemicals in a mixing tank (10). A reduced pressure is maintained...
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WO/2001/090276A1 |
The inventive method for petrol distillation consists in supplying petrol to a distillation column, in separating the petrol into hydrocarbon fractions therein, evacuating liquid fractions from the column and evacuating the vapor of ligh...
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WO/2001/085656A1 |
The invention relates to a method for treating a C¿4? fraction, comprising the following steps: extractive distillation (I), selective hydrogenation on a heterogeneous catalyst (II), a stream of crude 1,3-butadiene resulting from steps ...
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WO2000077120A9 |
The invention may be used to evaluate suitability of hydrocarbon materials to various types of processing methodologies, or to determine processing parameters, either prior to processing or during processing. Prediction of proximity to f...
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WO/2001/079381A1 |
The invention relates to a method for obtaining a highly pure aromatic product from a close-boiling or constant-boiling intermediate product containing non-aromatics. Said intermediate product is separated into a higher-boiling and a low...
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WO/2001/074744A1 |
A process for purifying a product, preferably, one from an acid-catalyzed hydrocarbon conversion process, said product comprising a first hydrocarbon and a second hydrocarbon, said first and second hydrocarbons having different boiling p...
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WO/2001/070912A1 |
A method for blending two or more constituents into a petroleum mixture employs nuclear magnetic resonance to obtain real-time estimates of selected properties of at least one of the constituents. A multivariate controller processes thes...
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WO/2001/064818A1 |
Process for the recovery of gaseous products from the product mixture obtained by contacting a hydrocarbon feed with a catalyst in a fluid catalytic cracking process, wherein the liquid, obtained by separating the top product of main fra...
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WO/2001/059033A1 |
Sulfur compounds are removed from a hydrocarbon stream. In a preferred embodiment, a gasoline stream from a fluid catalytic cracker is extractively distilled in an extractive distillation column (C-201) to reject olefins to a raffinate s...
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WO/2001/058582A1 |
The invention relates to industrial processing technology, in particular to refining hydrocarbon liquids, to a method and device for the resonance excitation thereof and also to a method and device for the fractionating thereof. The inve...
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WO/2001/059534A1 |
A method for controlling a chemical processing system (figure 1) for an ethylene splitter system using a control system for a continuous distillation tower (10) and demonstrates the loading variables concept of control. A mixture of ethy...
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WO/2001/051588A1 |
In a distillation control system, a nuclear magnetic resonance (NMR) sensor identifies the composition of petroleum distillates from a distillation tower, and preferably also identifies the composition of the input feed method. This info...
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WO/2001/051589A1 |
A method for controlling the output of a distillation tower fed by a fluid catalytic cracker uses one or more NMR sensors to obtain on-line measurements of values of selected properties of feedstock and/or of distillation tower outputs. ...
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WO/2001/048118A1 |
A method for separating sulfur species from hydrocarbon streams, particularly cracked naphtha streams, using extractive distillation. The method effectively separates sulfur species from cracked naphtha streams without substantially lowe...
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WO/2001/042394A1 |
The invention relates to a residual oil caused by the treatment of crude oil, natural bitumen or oil sand. The residual oil is mixed with grained, hot coke acting as a heat transfer medium (thermal coke) in a mixer and at a weight ratio ...
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WO/2001/042393A1 |
A petroleum processing method for separating stock oil into an atmospheric distillate, a vacuum distillate and a vacuum residue on distillation, characterized by comprising (i) an atmospheric distillation step for atmospheric-distilling ...
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WO/2001/038457A1 |
Selective and deep desulfurization of a high sulfur content mogas naphtha, with reduced product mercaptans and olefin loss, is achieved by a two stage, vapor phase hydrodesulfurization process with interstage separation of at least 80 vo...
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WO/2001/036566A1 |
A light portion is extracted from feed oil by a separation system. The light portion is then subject to a hydrotreatment to obtain impurity-removed fuel oil which is stored in an intermediate tank. A residue of the feed oil after extract...
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WO/2001/034266A1 |
A method, of separating oil, water and solids from oily feeds in the form of emulsions and muds is described, in which the feed has first been conditioned through pH regulation in a known manner in order to destabilise it, where the feed...
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WO/2001/023332A1 |
A hydrocarbon feedstock containing C¿5? olefins, C¿5? diolefins, CPD, DCPD, and aromatics is processed by the steps of heating a hydrocarbon feedstock (102) containing CPD, DCPD, C¿5? diolefins, benzene, toluene, and xylene in a heati...
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WO/2001/012757A1 |
The present invention is a process for producing a distillate fuel heavier than gasoline. The process is a Fischer-Tropsch (hydrocarbon synthesis) process that includes using ?13¿C NMR to measure cetane number and a cold flow property i...
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WO/2000/077121A1 |
The present invention is a method for mitigating the fouling from thermally cracked oils by minimizing the residence time at the temperature when the fouling is highest.
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WO/2000/077382A1 |
The invention relates to a fuel fractionation device for separating a fuel fraction with a low boiling-point from a liquid fuel in an internal combustion engine. Said device comprises a container (6) which holds the liquid fuel. The fuel...
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WO/2000/075263A1 |
Process to separate propene from gaseous fluid catalytic cracking products by performing the following steps: a) separating a feed mixture comprising the gaseous products, propene and other saturated and unsaturated hydrocarbons obtained...
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WO/2000/061701A1 |
An antigelling 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 precursors capable of formin...
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WO/2000/031006A1 |
The present invention includes a process for blending two or more petroleum oils, any component of which may be an unprocessed crude oil or a processed oil derived from petroleum, in a manner to minimize fouling and coking of refinery pr...
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WO/2000/027957A1 |
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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WO/2000/026325A1 |
Crude oil is separated into a light oil and a normal pressure residual oil by an atmospheric distillation and the light oil is brought into contact with a pressurized hydrogen in the presence of a catalyst to perform a first hydrogenatio...
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WO/2000/025881A1 |
The invention relates to a rectifying column for extractive distillation, comprising a column main section (204) and a raffinate section (205) above said main section, an evaporator (208) situated on the lower end of the column, an inlet...
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WO/2000/020087A1 |
In an atmospheric pipestill stripping process where steam is utilized as the stripping gas to strip bottoms and side stream products, the improvement comprising utilizing ammonia or an ammonia and steam mixture as said stripping gas wher...
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