Patent application number | Description | Published |
20090149686 | PROCESS FOR SEPARATION OF C8 AROMATIC COMPOUNDS WITH LIMITED RECYCLING - Process for the production of paraxylene from a C8 aromatic feedstock that comprises the following stages:
| 06-11-2009 |
20100089798 | USE OF SOLIDS BASED ON ZINC FERRITE IN A PROCESS FOR DEEP DESULPHURIZING OXYGEN-CONTAINING FEEDS - The invention concerns a process for desulphurizing a feed comprising oxygen-containing compounds, hydrocarbon-containing compounds and organic sulphur-containing compounds, by capturing sulphur on a capture mass comprising iron oxides or zinc oxides and more than 20% by weight of zinc ferrite. The process is operated in the presence of hydrogen at a temperature in the range 200° C. to 400° C. | 04-15-2010 |
20100089799 | USE OF ZINC FERRITE-BASED SOLIDS IN A PROCESS FOR DEEP DESULFURIZATION OF HYDROCARBON FRACTIONS - The invention relates to a process for desulfurization of a non-oxidized hydrocarbon feedstock, comprising organic sulfur compounds, by adsorption, especially chemisorption of sulfur on a composition in bulk form consisting essentially of 70% by weight of zinc ferrite and optionally iron oxides or zinc oxides. The process is performed in the presence of hydrogen at a temperature of between 200° C. and 450° C. | 04-15-2010 |
20100186290 | Method of Producing Alkyl Esters from Vegetable or Animal Oil and an Aliphatic Monoalcohol Using Membrane Separation - The present invention describes a method of producing fatty acid alkyl esters and glycerin implementing a set of transesterification reactions between a vegetable or animal oil and an aliphatic monoalcohol in the presence of a heterogeneous solid catalyst so as to obtain an effluent comprising at least alkyl esters, free glycerol, bonded glycerol and alcohol, wherein at least one stage of separation of at least a portion of the effluent is carried out in order to separate the ester produced and the bonded glycerol, said separation occurring through a membrane. | 07-29-2010 |
20100263264 | METHOD OF INCOPORATING ALCOHOL INTO FUELS HAVING A HIGH AROMATIC COMPOUND CONTENT - The method allows to incorporate an alcohol or a mixture of alcohols into fuels by minimizing the energy expenditure linked with the prior production of the alcohol or of the mixture of alcohols. One or more bases of the fuel, to which an oxygen-containing compound or a mixture of oxygen-containing compounds have possibly been added, are used to extract the alcohol or the alcohol mixture contained in aqueous solutions produced by biomass fermentation processes. After adjusting the temperature of the aqueous solution stream and of the stream containing one or more bases of the fuel through exchangers, these streams are fed into an extractor. The extract leaving the extractor is then dried and/or an oxygen-containing compound or a mixture of oxygen-containing compounds is added thereto. The raffinate leaving the extractor is sent to a water treating plant or recycled, The stream of dried fuel to which an oxygen-containing compound or a mixture of oxygen-containing compounds has possibly been added is sent to be stored. The water leaving the drying stage is sent to a water treating plant or recycled. | 10-21-2010 |
20100276368 | PROCESS FOR MEMBRANE SEPARATION OF LINEAR HYDROCARBONS WITHIN A HYDROCARBON MIXTURE - The invention relates to a process for membrane separation that makes it possible to separate linear hydrocarbons from branched hydrocarbons. The membrane that is used comprises a dense selective layer that consists of a polymer whose chemical structure contains at least one bis-phenyl-9,9-fluorene group. | 11-04-2010 |
20110049051 | PROCESS FOR SEPARATING PROPANE AND PROPYLENE USING A DISTILLATION COLUMN AND A MEMBRANE SEPARATION COLUMN - Process for separating propane and propylene using a distillation column and at least one membrane separation unit constituted by one or more modules operating in series, said membrane separation unit being placed either upstream, or downstream, or upstream and downstream of the distillation column. | 03-03-2011 |
20110130611 | PROCESS FOR MEMBRANE SEPARATION OF AN OLEFIN THAT IS CONTAINED IN A HYDROCARBON MIXTURE - This invention relates to the field of processes for membrane separation and applies in particular to the purification of C2 or C3 olefins. This process makes it possible more particularly to separate propylene from a mixture that contains other C3 hydrocarbons such as propane. The membranes that are used in the process according to this invention are vitreous polymer-based membranes whose pattern contains a bis-phenyl-9,9-fluorene group. | 06-02-2011 |
20130121904 | PROCESS FOR CAPTURING SULPHUR IMPURITIES USING SPECIFIC RETAINING MATERIALS - A process for capturing sulphur impurities present in gas feeds containing H | 05-16-2013 |
20130341564 | CAPTURE MASS COMPOSED OF ELEMENTAL SULPHUR DEPOSITED ON A POROUS SUPPORT FOR CAPTURING HEAVY METALS - The present invention concerns the elimination of heavy metals, in particular mercury and possibly arsenic and lead, present in a dry or moist gaseous effluent ( | 12-26-2013 |
20140142342 | LIQUID-LIQUID EXTRACTION COLUMN CONTAINING TWO DISTINCT TYPES OF PLATES - The present invention describes a liquid-liquid extraction column with perforated plates and downpipes, having a majority of so-called “open” plates and a minority of so-called “closed” plates, the two types of plates differing in the degree of perforation. Application of the said column to the treatment of liquid-liquid systems with time-variable coalescence. | 05-22-2014 |
20140175334 | POLYMETALLIC CAPTURE MASS FOR CAPTURING HEAVY METALS - The invention concerns a capture mass for capturing heavy metals in a liquid or gaseous effluent, comprising a porous solid support, copper sulphide and at least one second metal sulphide the metal of which is selected from the group constituted by chromium, manganese, iron, cobalt and nickel, and in which the ratio of the percentage by weight of the metal or metals other than copper to the percentage by weight of copper is in the range 0.01 to 2. The invention also concerns a process for preparing said capture mass and a process for capturing heavy metals in a gaseous or liquid effluent, in which said effluent is brought into contact with said capture mass. | 06-26-2014 |
20140284250 | DEVICE FOR EXTRACTING SULPHUR-CONTAINING COMPOUNDS BY LIQUID-LIQUID EXTRACTION BY MEANS OF A SODA SOLUTION WITH AN OPTIMIZED FINAL WASHING STEP - Process of extracting sulphur-containing compounds from a hydrocarbon cut of the gasoline or LPG type by liquid-liquid extraction with a soda solution employing a unit ( | 09-25-2014 |
20140308189 | SHAPING CAPTURE MASSES FOR THE PURIFICATION OF A LIQUID OR GAS FEED CONTAINING HEAVY METALS - The present invention concerns the elimination of heavy metals, in particular mercury and possibly arsenic and lead, present in a gaseous or liquid effluent by means of a fixed bed process using an adsorbent in the form of monolithic or supported extrudates, said extrudates being characterized by a length h and a section comprising at least three lobes. The adsorbent is composed of at least one active phase based on sulphur in the elemental form or in the form of a metallic sulphide. | 10-16-2014 |
20140319025 | DEVICE FOR EXTRACTING SULPHUR-CONTAINING COMPOUNDS COMPRISING A FIRST PRETREATMENT REACTOR OPERATING IN BATCH MODE FOLLOWED BY A SECOND PRETREATMENT REACTOR OF THE PISTON TYPE - Process of extracting sulphur-containing compounds from a hydrocarbon cut of the gasoline or LPG type by liquid-liquid extraction with a soda solution employing a unit ( | 10-30-2014 |
20150034561 | PERFORMANCE TRAPPING MASS AND USE THEREOF IN HEAVY METAL TRAPPING - The present invention concerns the elimination of heavy metals, in particular mercury and possibly arsenic and lead, present in a gaseous or liquid effluent by means of a capture mass comprising a support essentially based on alumina obtained by the gel method and at least one element selected from the group constituted by copper, molybdenum, tungsten, iron, nickel and cobalt. The invention is advantageously applicable to the treatment of gas of industrial origin, synthesis gas, natural gas, gas phase condensates and liquid hydrocarbon feeds. | 02-05-2015 |