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Matches 151 - 200 out of 853

Document Document Title
WO/2004/096415A1
Chitosan membranes chelated with silver or cuprous material may be used to separate olefins from a mixture of olefins and paraffins. The feed stream is humidified, demisted, treated to remove sulfur compounds and passed to a cell having ...  
WO/2004/085576A1
Method for purifying a liquid medium, including adsorbing the impurities contained in the liquid medium using a sorbent, separation and removal of the adsorbed impurities, and regeneration of the sorbent, wherein the impurities are oxidi...  
WO/2004/083346A1
This invention is a method of purifying fuel streams containing organonitrogen and organosulfur impurities. The fuel stream is first treated to extract organonitrogen impurities so that the nitrogen content of the fuel stream is reduced ...  
WO2003087263A8
A method for determination for a given oil the relative stability of a water-in-oil emulsion that will be formed by that oil with water comprises measuring for the given oil the weight percent asphaltenes (A), total acid number (TAN), an...  
WO/2004/061054A1
A process is disclosed for the production of refinery transportation fuel or components for refinery blending of transportation fuels having a reduced amount of sulfur and/or nitrogen-containing impurities. The process involves contactin...  
WO/2004/058920A1
The present invention provides a process for the extraction of aromatics from petroleum fractions i.e. naphtha, kerosene and gas oil, using re-extraction route for recovery of solvent.  
WO/2004/053026A1
A process for the upgrading of raw hydrocarbon streams rich in heteroatomic polar compounds and/or unsaturated moieties involving the extractive oxidation of sulfur, nitrogen, conjugated dienes and other unsaturated compound from said st...  
WO/2004/039922A1
Apparatus (10) for cleaning fluids such as oils comprising an inlet (12) for fluid to be cleaned, a heating unit (21) for heating the fluid, a centrifugal cleaner (24), a vacuum dehydration unit (26), a holding tank (11) and a fluid outl...  
WO2004016715A3
The invention relates to a method and a device for purifying petroleum fractions in order to produce fuel with a low content of sulphur and/or aromatic compounds. The inventive method consists in simultaneously distilling the petroleum f...  
WO2002018518A8
A process for desulfurizing fuels such as diesel oil and similar petroleum products to reduce the sulfur content to a range of from about 2 to 15 ppm sulfur is described. The sulfur containing fuel is contacted at slightly elevated tempe...  
WO/2004/016715A2
The invention relates to a method and a device for purifying petroleum fractions in order to produce fuel with a low content of sulphur and/or aromatic compounds. The inventive method consists in simultaneously distilling the petroleum f...  
WO/2004/007644A1
The invention relates to a method of regenerating used oils of petroleum origin by means of extraction with aliphatic solvents. The inventive method is characterised in that, once the solvent has been eliminated from the extract, it comp...  
WO2003035808A3
Disclosed are fuel compositions for internal combustion engines comprising as a predominant component organic distillates which exhibit suitable physical properties, and a low-sulfur fraction of an alkylated petroleum feedstock which, fo...  
WO/2004/005435A1
A process is provided for removing sulfur compounds, such as 4, 6 - dimethyldibenzothiophene, etc., out of hydrocarbon fluids, such as middle distillates, cracked gasoline, etc., by passing the sulfur compound-contaminated hydrocarbon fl...  
WO2003089543A3
The present invention provides a process for reducing the nitrogen content of a liquid hydrocarbon feed wherein said process comprises a) contacting a liquid hydrocarbon feed comprising an alkylating agent and organic nitrogen species wi...  
WO2003087263A3
A method for determination for a given oil the relative stability of a water-in-oil emulsion that will be formed by that oil with water comprises measuring for the given oil the weight percent asphaltenes (A), total acid number (TAN), an...  
WO2002070109A8
The invention is directed to a process for removal of sulfur compounds from a hydrocarbon source containing them, wherein the hydrocarbon source is to be utilized in a downstream hydrogen production process including a sulfur removal ste...  
WO/2003/093203A1
The invention relates to a method of desulphurising a mixture of hydrocarbons containing sulphur compounds. The inventive method comprises: a step involving oxidation using an oxidising agent in order to oxidise the sulphur compounds and...  
WO/2003/089543A2
The present invention provides a process for reducing the nitrogen content of a liquid hydrocarbon feed wherein said process comprises a) contacting a liquid hydrocarbon feed comprising an alkylating agent and organic nitrogen species wi...  
WO/2003/087263A2
A method for determination for a given oil the relative stability of a water-in-oil emulsion that will be formed by that oil with water comprises measuring for the given oil the weight percent asphaltenes (A), total acid number (TAN), an...  
WO/2003/085069A1
The present invention relates to a process for increasing the capacity for processing residua and obtaining higher yields of liquids having an average boiling point equal to or less than about 510°C. A residual feedstock is introduced w...  
WO2002097006A3
Economical processes are disclosed for production of components for refinery blending of transportation fuels which are liquid at ambient conditions by selective oxygenation of refinery feedstocks comprising a mixture of organic compound...  
WO/2003/074633A1
A process effective for the removal of organic sulfur compounds from liquid hydrocarbons is disclosed. The process more specifically addresses the removal of thiophenes and thiophene derivatives from a number of petroleum fractions, incl...  
WO2002062923A3
The present invention relates to Compositions of fuels for transportation particularly organic compositions which are liquid at ambient conditions. More specifically, it relates to transportation fuels comprising suitable organic distill...  
WO/2003/048272A1
The invention provides a method for separating at least a fraction of non-acid chemicals (NAC's) from at least a fraction of a gaseous raw product produced during a Fischer-Tropsch (FT) reaction or a condensate thereof including at least...  
WO/2003/044129A1
The invention relates to a method of oxidising sulphur compounds present in gasoline, kerosene and diesel fractions. The inventive method comprises an oxidation step in which a reaction mixture is subjected to a reaction involving the ox...  
WO/2003/040264A1
A process for the removal of organosulfur compounds from hydrocarbon materials is disclosed. The process includes contacting an ionic liquid with a hydrocarbon material to extract sulfur-containing compounds into the ionic liquid. The su...  
WO/2003/040266A1
There is provided with a process for separating normal paraffins from hydrocarbons of C5-10 using zeolite molecular sieve 5A, which comprises the steps of (a) selective adsorption (b) cocurrent purge (c) countercurrent desorption. The pr...  
WO/2003/035808A2
Disclosed are fuel compositions for internal combustion engines comprising as a predominant component organic distillates which exhibit suitable physical properties, and a low-sulfur fraction of an alkylated petroleum feedstock which, fo...  
WO/2003/031537A1
A process oil comprising a 95&sol 5 to 5&sol 95 by weight mixture of: an extract having a DMSO extractable content less than 3 wt.% obtained by solvent−extracting an oil obtained by deasphalting a vacuum distillation bottom&semi and ei...  
WO/2003/029388A1
A process for concurrently fractionating and hydrotreating of a full range naphtha stream (101) which is subjected to a first distillation column reactor (10) wherein mercaptans and diolefins in the naphta are reacted in the presence of ...  
WO2002068568A3
A membrane process for the removal of sulfur species from a naphtha feed, in particular, a FCC light cat naphtha, without a substantial loss of olefin yield is disclosed. The process involves contacting a naphtha feed stream with a membr...  
WO/2003/025097A1
The invention relates to a method of desulphurising and/or denitrogenating a hydrocarbon mixture containing sulphur compounds and/or nitrogen compounds. The inventive method comprises: (i) an oxidation step using an oxidising agent in or...  
WO2002092726A3
A process for the catalytic oxidation of sulfur and nitrogen contaminants as well as unsaturated compounds present in a hydrocarbon fossil oil medium is described, the process comprising effecting the oxidation in the presence of at leas...  
WO/2002/102935A1
The invention relates to a method for treating and upgrading a hydrocarbon containing acidic species such as mercaptans, comprising: (a) contacting the hydrocarbon, in the essential absence of oxygen, with a first phase of a treatment co...  
WO/2002/102940A1
The invention relates to a method for desulfurizing naphtha boiling-range hydrocarbons such as cracked naphtha. More particularly, the invention relates to hydrotreating the naphtha under selective hydrotreating conditions, and then remo...  
WO/2002/102717A1
Method and apparatus for treating a mixture of mineral substrate particles and hydrocarbon compounds, especially tarsands and contaminated soils, to recover a hydrocarbon portion and a cleaned substrate portion. Rock, sand, ore, or soil ...  
WO/2002/102934A1
The invention relates to a composition and method for treating liquid hydrocarbons in order to remove acidic impurities, such as mercaptans, particularly mercaptans having a molecular weight of about C¿4? (C¿4?H¿10?S=90 g/mole) and hi...  
WO/2002/102933A1
The invention relates to a method for treating naphtha, such as catalytically cracked naphtha, in order to remove acidic impurities, such a mercaptans. In particular, the invention relates to a method for mercaptans having a molecular we...  
WO/2002/102936A1
The invention relates to a method for treating and upgrading a hydrocarbon containing acidic species such as mercaptans, comprising: (a) contacting the hydrocarbon, in the essential absence of oxygen, with a first phase of a treatment co...  
WO2002062926A3
Economical processes are disclosed for the production of components for refinery blending of transportation fuels by selective oxidation of feedstocks comprising a mixture of hydrocarbons, sulfur-containing and nitrogen-containing organi...  
WO/2002/097006A2
Economical processes are disclosed for production of components for refinery blending of transportation fuels which are liquid at ambient conditions by selective oxygenation of refinery feedstocks comprising a mixture of organic compound...  
WO/2002/092726A2
A process for the catalytic oxidation of sulfur and nitrogen contaminants as well as unsaturated compounds present in a hydrocarbon fossil oil medium is described, the process comprising effecting the oxidation in the presence of at leas...  
WO2002062923A8
The present invention relates to Compositions of fuels for transportation are disclosed, particularly organic compositions which are liquid at ambient conditions. More specifically, it relates to transportation fuels comprising suitable ...  
WO/2002/087743A1
Methods for removing sulfur from syngas in a Fischer-Tropsch reactor, and reactors including means for removing sulfur from syngas are disclosed. Sulfur-reactive metals can be used in the Fischer-Tropsch unit to sequester the sulfur. For...  
WO2002031085A3
This invention relates to a method for separating olefins and paraffins from oxygenates in a liquid hydrocarbon stream containing a high proportion of olefins, paraffins and oxygenates (mainly alcohols). Typically, the hydrocarbon stream...  
WO/2002/086021A1
Potassium formate is used together with a sulfide scavenger to remove and otherwise treat sulfhydryl compounds such as hydrogen sulfide present in hydrocarbons and aqueous substrates.  
WO/2002/081597A1
A method and a device for separating sulfuric compound contained in oil; the method, comprising the step of feeding fog oil into an ozone atmosphere to perform a treatment for catalytic reaction to ozone so as to oxidize the sulfuric com...  
WO/2002/070109A1
The invention is directed to a process for removal of sulfur compounds from a hydrocarbon source containing them, wherein the hydrocarbon source is to be utilized in a downstream hydrogen production process including a sulfur removal ste...  
WO/2002/068568A2
A membrane process for the removal of sulfur species from a naphtha feed, in particular, a FCC light cat naphtha, without a substantial loss of olefin yield is disclosed. The process involves contacting a naphtha feed stream with a membr...  

Matches 151 - 200 out of 853