Patent application number | Description | Published |
20100243530 | PROCESS FOR PREPARING A HYDROTREATMENT CATALYST BY IMPREGNATION WITH A PHOSPHORUS-CONTAINING COMPOUND - The invention concerns a process for preparing a hydrotreatment catalyst, comprising the following steps:
| 09-30-2010 |
20110198500 | Novel method for on-line measurement in simulated moving bed units and application to control and regulation of said units - The present invention describes a method for measuring the concentrations of species present at one point of a separation unit functioning in simulated moving bed mode (SMB), using an immersing probe located at one point in the unit or on one of the streams entering or leaving said unit, and a thermocouple located in the vicinity of the immersing probe, in which a Raman spectrum obtained using a laser source functioning at a wavelength of 785 nm is utilized.
| 08-18-2011 |
20130008829 | CATALYST THAT CAN BE USED IN HYDROTREATMENT, COMPRISING METALS OF GROUPS VIII AND VIB, AND PREPARATION WITH ACETIC ACID AND DIALKYL SUCCINATE C1-C4 - The invention relates to a catalyst usable in hydrotreatment processes, which comprises an alumina-based amorphous support, phosphorus, a C1-C4 dialkyl succinate, acetic acid and a hydro-dehydrogenizing function comprising at least one group VIII element and at least one group VIB element, preferably made up of cobalt and molybdenum, a catalyst whose Raman spectrum comprises the most intense bands characteristic of the Keggin heteropolyanions (974 and/or 990 cm | 01-10-2013 |
20140027351 | PROCESS FOR HYDROTREATING HEAVY HYDROCARBON FEEDS WITH SWITCHABLE REACTORS INCLUDING AT LEAST ONE STEP OF PROGRESSIVE SWITCHING - Process for hydrotreating a heavy hydrocarbon fraction using a system of switchable fixed bed guard zones each containing at least one catalyst bed including at least one step during which the flow of feed supplied to the first guard zone brought into contact with the feed is partly displaced to the next guard zone downstream, preferably progressively. | 01-30-2014 |
20140097125 | FILTERING DISTRIBUTOR PLATE FOR SUPPLYING A FIXED BED REACTOR HAVING A CO-CURRENT DOWNFLOW OF GAS AND LIQUID FOR THE TREATMENT OF HEAVY CLOGGING FEEDS - The present invention describes a distributor plate adapted to co-current downflow flows of gas and of liquid, more particularly in the “trickle” mode, said distributor plate integrating a filtration function separate from the distribution function. | 04-10-2014 |
20140166540 | RESIDUE HYDROTREATMENT CATALYST COMPRISING VANADIUM, AND ITS USE IN A RESIDUE HYDROCONVERSION PROCESS - A catalyst containing a group VIB element; a group VIII element; phosphorus in a quantity of 0.1% to 9% by weight of phosphorus pentoxide with respect to the total catalyst mass; vanadium in a quantity of 0.25% to 7% by weight of vanadium pentoxide with respect to the total catalyst mass; a porous refractory oxide support; | 06-19-2014 |