Patent application number | Description | Published |
20090101584 | Reverse flow reactor with integrated separation and process for the employing this reactor - The present invention pertains to a reverse-flow reactor comprising at least one catalyst bed which is preceded and followed by at least one bed containing selectively adsorbing material, and its application for in a process for the removal of contaminants from a process stream. | 04-23-2009 |
20100217038 | PROCESS FOR CONVERTING LEVULINIC ACID INTO PENTANOIC ACID - A process for converting levulinic acid into pentanoic acid, the process comprising the following steps: (a) contacting a feedstock comprising levulinic acid under hydrogenating conditions, in the presence of hydrogen, with a non-acidic heterogeneous hydrogenation catalyst comprising a hydrogenation metal supported on a solid catalyst carrier to obtain a first effluent comprising gamma valerolactone; (b) contacting at least part of the first effluent under hydrogenating conditions, in the presence of hydrogen, with a strongly acidic catalyst and a hydrogenation metal to obtain a second effluent comprising pentanoic acid, wherein step (b) is operated at a conversion per pass of at most 70 wt % to obtain the second effluent comprising pentanoic acid and unconverted gamma valerolactone, and wherein part of the unconverted gamma valerolactone is recycled to step (a) and/or step (b). | 08-26-2010 |
20100292507 | PROCESS FOR CONVERTING LEVULINIC ACID INTO PENTANOIC ACIDITLE - A process for converting levulinic acid into pentanoic acid, comprising the following steps: (a) supplying hydrogen and a feedstock comprising levulinic acid to a first catalytic zone comprising a strongly acidic catalyst and a hydrogenation metal; (b) converting, in the first catalytic zone, the levulinic acid at a temperature in the range of from 100 to 250° C. into gamma valerolactone to obtain a first effluent comprising gamma valerolactone; (c) supplying at least part of the first effluent to a second catalytic zone comprising a strongly acidic catalyst and a hydrogenation metal; and (d) converting, in the second catalytic zone, gamma valerolactone into pentanoic acid at a temperature in the range of from 200 to 350° C. to obtain a second effluent comprising pentanoic acid, wherein the conversion temperature in the first catalytic zone is lower than the conversion temperature in the second catalytic zone, and wherein the acidic catalyst and the hydrogenation metal in the first catalytic zone has the same composition as the acidic catalyst and the hydrogenation metal in the second catalytic zone. | 11-18-2010 |
20110041792 | GASOLINE COMPOSITIONS - An unleaded gasoline composition comprising:
| 02-24-2011 |
20110046399 | PROCESS FOR PREPARING A HYDROXYACID OR HYDROXYESTER - A process for preparing a hydroxyacid or hydroxyester from a reactant selected from
| 02-24-2011 |
20110112326 | PROCESS FOR HYDROGENATION - A process for the hydrogenation of a reactant selected from:
| 05-12-2011 |
20110173877 | PROCESS FOR PREPARING A HYDROCARBON OR MIXTURE OF HYDROCARBONS - A process for preparing a hydrocarbon or mixture of hydrocarbons comprising the steps of
| 07-21-2011 |
20110184195 | PROCESS FOR THE HYDROGENOLYSIS OF FURFURYL DERIVATIVES - The present invention relates to a process for the hydrogenolysis of a furfuryl derivative to 2-methylfuran derivative, comprising: (a) contacting under liquid phase conditions a solution of the furfuryl derivative in a solvent having a boiling point above the boiling point of furfuryl derivative with hydrogen in the presence of a catalyst comprising a hydrogenation compound to form a 2-methylfuran derivative and water, at a temperature and pressure suitable to maintain the furfuryl derivative in the solvent in the liquid phase, and (b) continuously distilling the 2-methylfuran derivative from the reaction mixture. | 07-28-2011 |
20110277378 | PROCESS FOR LIQUEFYING A CELLULOSIC MATERIAL AND ITS PRODUCTS - A process for liquefying a cellulosic material to produce a liquefied product from cellulosic material is provided. Products obtained from such process and use of such products to prepare biofuels is also provided. | 11-17-2011 |
20110302824 | PROCESS FOR LIQUEFYING A CELLULOSIC MATERIAL - A process for liquefying a cellulosic material is provided comprising hydrolysing the cellulosic material in the presence of an acid catalyst in a solvent mixture to produce a liquefied product, wherein the solvent mixture contains water and in the range of 5 to 95 wt % of a co-solvent and wherein the co-solvent is present in an amount of less than or equal to 90% by weight based on the weight of water and co-solvent, which co-solvent comprises one or more polar solvents, and wherein the solvent mixture is at least partly recycled. | 12-15-2011 |
20120083611 | PROCESS FOR PRODUCING FURFURAL - A process is provided for producing furfural from solid biomass by gaseous acid catalysed hydrolysis and dehydration in the presence of superheated steam and one or more acid catalysts. The solid biomass is heated to a temperature which is sufficiently high to ensure that the superheated steam and the acid catalyst or catalysts to be used remain in gaseous form during the reaction. The heated solid biomass is contacted with a gaseous stream containing superheated steam and one or more acid catalysts to produce a furfural-containing gaseous stream containing superheated steam, one or more acid catalysts and furfural. The furfural-containing gaseous stream is recirculated to bring it into further contact with the heated solid biomass to enrich the concentration of furfural. | 04-05-2012 |
20120190885 | PROCESS FOR PREPARING AN ESTER - A process for preparing an ester of formula (I): | 07-26-2012 |
20130118059 | PROCESS FOR CONVERSION OF A CELLULOSIC MATERIAL - A process for conversion of a cellulosic material comprising
| 05-16-2013 |
20130247449 | PROCESS FOR CONVERSION OF A CELLULOSIC MATERIAL - Methods to convert a cellulosic material into a bio-oil. In one embodiment, the method comprises (a) contacting the cellulosic material with a liquid solvent in an inert atmosphere at a reaction temperature in the range from equal to or more than about 260° C. to equal to or less than about 400° C. to produce a product mixture; (b) separating a middle fraction from the product mixture to produce a product mixture middle fraction. A first portion of the product mixture middle fraction can be recycled as part of the liquid solvent in step a). At least part of the product mixture is hydrotreated before at least a portion of a middle fraction of the treated product mixture is recycled as part of the liquid solvent in step a). | 09-26-2013 |
20140096438 | PROCESS FOR LIQUEFYING A CELLULOSIC MATERIAL - A process for liquefying a cellulosic material to produce a liquefied product comprising contacting the cellulosic material with a hydrogenation catalyst a liquid medium; and a source of hydrogen. The hydrogenation catalyst comprises a hydrogenating metal or precursor thereof and a megaporous structure, wherein the megaporous structure comprises a porosity of at least 60% by volume and at least 30 volume % of the pore volume of the megaporous structure is present in megapores having a diameter of equal to or more than 1 micrometer. | 04-10-2014 |