Patent application number | Description | Published |
20090326300 | PROCESS FOR CRACKING TERT-ALKYL ETHERS THAT USE A MESOSTRUCTURED HYBRID ORGANIC-INORGANIC MATERIAL - A process for cracking tert-alkyl ether(s) selected from among tert-amyl methyl ether (TAME) and ethyl tert-amyl ether (ETAE) for the production of tertiary olefins comprising bringing said tert-alkyl ether(s) into contact with at least one catalyst that is formed by at least one mesostructured hybrid organic-inorganic material that consists of at least two spherical elementary particles, whereby each of said spherical particles consists of a mesostructured matrix with a silicon oxide base to which are linked organic groups with acid terminal reactive functions, said groups representing less than 20 mol % of said matrix that is present in each of said spherical elementary particles, which have a maximum diameter of between 50 nm and 200 μm. | 12-31-2009 |
20100010278 | PROCESS FOR SELECTIVE HYDROGENATION ON A GOLD-CONTAINING CATALYST - The invention relates to a process for selective hydrogenation by bringing a so-called C2 fraction feedstock into contact with a fixed catalyst bed, whereby said catalyst comprises a substrate and a metal phase that consists of either gold or palladium and gold with a molar ratio of gold to palladium of greater than 5, whereby the contact is carried out in the presence of a solvent that comprises at least one aromatic hydrocarbon, whereby the products that are obtained at the end of the selective hydrogenation can be separated from the solvent by distillation. | 01-14-2010 |
20100154295 | METHOD OF PREPARING ALCOHOL ESTERS FROM TRIGLYCERIDES AND ALCOHOLS USING HETEROGENEOUS CATALYSTS COMBINING AT LEAST A ZnxAl2O3+x TYPE SOLID SOLUTION AND ZnO - A method of preparing a composition of alcohol esters of linear monocarboxylic acids with 6 to 26 carbon atoms from a vegetable or animal oil, neutral or acid, virgin or recycled, with monoalcohols having 1 to 18 carbon atoms, in the presence of a catalyst combining at least a solid solution of Zn | 06-24-2010 |
20100286436 | SEPARATION IMPROVEMENT IN A METHOD OF PRODUCING ALKYL ESTERS FROM VEGETABLE OR ANIMAL OIL AND AN ALIPHATIC MONOALCOHOL - The present invention describes a method of producing fatty acid alkyl esters and glycerin implementing, in a reaction section, a set of transesterification reactions between a vegetable or animal oil and an aliphatic monoalcohol, and using a heterogeneous solid catalyst, comprising:
| 11-11-2010 |
20100286459 | REACTION ZONE COMPRISING TWO RISERS IN PARALLEL AND A COMMON GAS-SOLID SEPARATION ZONE, FOR THE PRODUCTION OF PROPYLENE - The present invention describes a reaction zone comprising at least two fluidized reactors, a principal reactor for cracking a heavy hydrocarbon cut, the other, additional, reactor for cracking one or more light cuts, the effluents from the two reactors being treated in a common gas-solid separation and quench zone. Performance is enhanced because the thermal degradation reactions in the reaction zone are controlled in an optimum manner. | 11-11-2010 |
20100298451 | PROCESS FOR PRODUCING MIDDLE DISTILLATES BY HYDROISMERIZING AND HYDROCRACKING A HEAVY FRACTION FROM A FISCHER-TROPSCH EFFLUENT - The invention describes a process in which the paraffinic effluent derived from a Fischer-Tropsch synthesis unit is separated to obtain a heavy C5+ fraction, said heavy fraction then being hydrogenated in the presence of a hydrogenation catalyst at a temperature in the range 80° C. to 200° C., at a total pressure in the range 0.5 to 6 MPa, at an hourly space velocity in the range 1 to 10 h | 11-25-2010 |
20110034750 | PROCESS FOR THE PRODUCTION OF LIGHT OLEFINS FROM ETHANOL IN THE PRESENCE OF A MACROPOROUS CATALYST THAT COMES IN THE FORM OF BALLS - A process for the production of C3-C6 light olefins from ethanol is described, and said process comprises at least the passage of a feedstock that contains ethanol into at least one reaction unit that is provided with at least one catalyst that comes in the form of spherical balls with a diameter of between 1 and 3 mm, each of said spherical balls comprising at least one zeolite and at least one alumina-based substrate and having a pore distribution such that the macropore volume that is measured by mercury porosimetry is between 0.10 and 0.20 ml/g and the mesopore volume that is measured by mercury porosimetry is between 0.25 and 0.35 ml/g. | 02-10-2011 |
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 |