| Patent application number | Description | Published |
|---|
| 20090012342 | Process to prepare a haze free base oil - Process for reducing the cloud point of a base oil having a kinematic viscosity at 100° C. of greater than 10 cSt by separating the molecules inferring the high cloud point from the base oil by means of a membrane separation wherein the feed is separated into a a permeate as the base oil having the reduced cloud point and a retentate. | 01-08-2009 |
| 20090065432 | METHOD AND APPARATUS FOR REMOVING METAL SULPHIDE PARTICLES FROM A LIQUID STREAM - The invention provides a method for removal of metal sulphide particles from a liquid stream comprising a solvent and metal sulphide particles, using a filter system comprising at least one membrane, the method comprising contacting the liquid stream with the membrane, thereby transferring metal sulphide particles from the liquid stream onto the membrane surface to obtain a liquid stream depleted of metal sulphide particles and a filter system comprising a membrane enriched in metal sulphide particles. The invention further provides an apparatus for removal of metal sulphide particles from a liquid stream comprising a solvent and metal sulphide particles, wherein the apparatus comprises a solvent regenerator column ( | 03-12-2009 |
| 20090313895 | PROCESS FOR OBTAINING A HYDROCARBON-ENRICHED FRACTION FROM A GASEOUS FEEDSTOCK COMPRISING A HYDROCARBON FRACTION AND CARBON DIOXIDE - The present invention provides a process for obtaining a hydrocarbon-enriched fraction from a gaseous feedstock comprising a hydrocarbon fraction and carbon dioxide, which process comprises the steps of: providing a membrane having a retentate side and a permeate side; and contacting the feedstock with the retentate side of the membrane, obtaining a hydrocarbon-enriched fraction at the permeate side of the membrane, wherein the membrane is an organic modified meso-porous membrane. | 12-24-2009 |
| 20100147745 | METHOD FOR REDUCING THE MERCURY CONTENT OF NATURAL GAS CONDENSATE AND NATURAL GAS PROCESSING PLANT - A method for reducing the mercury content of natural gas condensate, comprising the steps of providing a nanofiltration membrane having a feed side and a permeate side; contacting the natural gas condensate with the feed side of the membrane; and obtaining a mercury-depleted natural gas condensate at the permeate side of the membrane; and a natural gas processing plant comprising a condensate workup section including a nanofiltration membrane separation unit for reducing the mercury content of natural gas condensate. | 06-17-2010 |
| 20100317751 | PROCESS FOR THE EXTRACTION OF HYDROGEN FROM A GAS MIXTURE - The invention relates to a process for the extraction of hydrogen from a gas mixture comprising hydrogen and carbon monoxide and optionally nitrogen, carbon dioxide, lower hydrocarbons and/or water, by contacting the gas mixture with a non-porous polyimide-based membrane, especially with the selective side of an asymmetric membrane, to obtain a hydrogen rich permeate and a hydrogen lean retentate, the polyimide-based membrane being a specific mixture of two polyimides. This specific membrane shows a very high hydrogen/carbon monoxide selectivity. The invention is especially suitable for the upgrading of synthesis gas obtained by partial oxidation and/or reforming of hydrocarbonaceous feedstream for use in hydrocarbon synthesis reaction as the Fischer-Tropsch reaction. | 12-16-2010 |
| 20110009684 | MULTI-STAGE MEMBRANE SEPARATION PROCESS - The invention concerns a process for the removal of gaseous acidic contaminants, especially carbon dioxide and/or hydrogen sulphide, in two or more stages from a gaseous hydrocarbonaceous feedstream ( | 01-13-2011 |
| 20110041687 | MULTI-STAGE MEMBRANE SEPARATION PROCESS - The invention concerns a process for the removal of gaseous acidic contaminants, especially carbon dioxide and/or hydrogen sulphide, in two or more stages from a gaseous hydrocarbonaceous feedstream ( | 02-24-2011 |
