Patent application number | Description | Published |
20090318740 | METHOD OF CONVERTING FEEDSTOCKS FROM RENEWABLE SOURCES TO GOOD-QUALITY DIESEL FUEL BASES USING A ZEOLITE TYPE CATALYST - The invention relates to a method of treating feedstocks from renewable sources in order to produce diesel fuel bases of excellent quality. The feedstocks used can be, for example, raw vegetable oils or such oils that have been previously subjected to a prerefining stage, animal fats, or mixtures of such feedstocks. The invention relates to a method allowing high diesel fuel base yields to be obtained from such feedstocks. | 12-24-2009 |
20090326290 | METHOD OF CONVERTING FEEDSTOCKS FROM RENEWABLE SOURCES TO GOOD-QUALITY DIESEL FUEL BASES USING A ZEOLITE CATALYST WITHOUT INTERMEDIATE GAS-LIQUID SEPARATION - The invention relates to a method of treating feedstocks from renewable sources without intermediate gas-liquid separation in order to produce diesel fuel bases of excellent quality. The feedstocks used can be raw vegetable oils or such oils that have been previously subjected to a prerefining stage, animal fats, or mixtures of such feedstocks. The invention relates to a method allowing high diesel fuel base yields to be obtained from such feedstocks. | 12-31-2009 |
20100242349 | PROCESS FOR THE CONTINUOUS HYDROGENATION OF TRIGLYCERIDE CONTAINING RAW MATERIALS - Process for the continuous hydrogenation of triglyceride containing raw materials in a fixed bed reactor system having several catalyst beds arranged in series and comprising hydrogenation catalyst. The raw material feed, hydrogen containing gas and diluting agent are passed together through the catalyst beds at hydrogenation conditions. The raw material feed stream as well as the stream of hydrogen containing gas are divided into an equal number of different partial streams. These are each passed to one catalyst bed in such a manner that the weight ratio of diluting agent to raw material feed is essentially the same at the entrance of all catalyst beds and does not exceed 4:1. The claimed process is preferably conducted at low temperatures and allows the utilization of existing units due to the low recycle ratio. Further, a sufficient excess of hydrogen is used so that no valuable product is lost through decarb-reactions. | 09-30-2010 |
20100325943 | PROCESS FOR EBULLATED BED HYDROCONVERSION OF FEEDS OF BIO-RENEWABLE ORIGIN FOR THE PRODUCTION OF FUEL BASES - The invention concerns a process for hydrotreatment and/or hydroconversion of a feed of bio-renewable origin containing triglyceride and/or fatty acid structures and wherein the fatty chains contain in the range 8 to 25 carbon atoms, said process comprising the following steps:
| 12-30-2010 |
20120059209 | PROCESS FOR THE CONTINUOUS HYDROGENATION OF TRIGLYCERIDE CONTAINING RAW MATERIALS USING A NICKEL AND MOLYBDENUM-BASED CATALYST - Process for the continuous hydrogenation of triglyceride containing raw materials in a fixed bed reactor system having several catalyst beds arranged in series and comprising at least e hydrogenation catalyst comprising an active phase constituted by a nickel and molybdenum element. The raw material feed, hydrogen containing gas and diluting agent are passed together through the catalyst beds at hydrogenation conditions. The raw material feed stream as well as the stream of hydrogen containing gas are divided into an equal number of different partial streams. These are each passed to one catalyst bed in such a manner that the weight ratio of diluting agent to raw material feed is essentially the same at the entrance of all catalyst beds and does not exceed 4:1. The claimed process is preferably conducted at low temperatures and allows the utilization of existing units due to the low recycle ratio. | 03-08-2012 |
20120165581 | PRODUCTION OF PARAFFINIC FUELS FROM RENEWABLE MATERIALS USING A CONTINUOUS HYDROTREATMENT PROCESS - The invention concerns a process for hydrotreating a feed originating from renewable sources such as vegetable oils to produce paraffinic hydrocarbons in the presence of hydrogen in excess over the theoretical hydrogen consumption and under hydrotreatment conditions in a fixed bed reactor having a plurality of catalytic zones disposed in series and comprising a hydrotreatment catalyst. The total feed flow is divided into a certain number of different part flows equal to the number of catalytic zones in the reactor; the various part flows are injected into the successive catalytic zones in increasing proportions to produce an effluent comprising paraffinic hydrocarbons. The effluent undergoes a separation step in order to separate a gas fraction and a liquid fraction containing the paraffinic hydrocarbons. At least a portion of said liquid fraction is recycled to the first catalytic zone so that the weight ratio between said recycle and the part flow introduced into the first catalytic zone is 10 or more. | 06-28-2012 |