| Patent application number | Description | Published |
|---|
| 20090139902 | PROCESS FOR CATALYTIC HYDROTREATING OF SOUR CRUDE OILS - A continuous process for upgrading sour crude oil by treating the sour crude oil in a two step process that includes a hydro-demetallization section and a hydro-desulfurization section, both of which are constructed in a permutable fashion so as to optimize the operating conditions and catalyst lifespan to produce a high value crude oil having low sulfur and low organometallic impurities. | 06-04-2009 |
| 20100018904 | Prerefining Process for the Hydrodesulfurization of Heavy Sour Crude Oils to Produce Sweeter Lighter Crudes Using Moving Catalyst System - A pre-refining catalytic hydrotreating process for the desulfurization, demetallization, and upgrading of heavy, sour crude oils operating at a moderate temperature and pressure through the utilization of moving catalyst bed technology. | 01-28-2010 |
| 20100025291 | Process for the Treatment of Heavy Oils Using Light Hydrocarbon Components as a Diluent - The present invention relates to a process for the treatment of heavy oils using a catalytic hydrotreating process. More specifically, the invention relates to the presence of light hydrocarbon components in conjunction with the heavy oils for improved treatment of the heavy oils utilizing moderate temperature and pressure. | 02-04-2010 |
| 20110000823 | MEMBRANE DESULFURIZATION OF LIQUID HYDROCARBONS USING AN EXTRACTIVE LIQUID MEMBRANE CONTACTOR SYSTEM AND METHOD - The process of the present invention is directed to the desulfurization of a sulfur-containing hydrocarbon stream with a membrane contactor, where sulfur compounds are concentrated in a sulfur-rich stream on a permeate side of the membrane using an extractive liquid, and a sulfur-lean stream is recovered as a retentate. The sulfur-rich stream, which has a small volume relative to the original hydrocarbon stream, is conveyed to a recovery zone to recover extractive liquid, and the remaining hydrocarbon stream having an increased concentration of sulfur compounds is passed to a downstream desulfurization apparatus or system, such as a hydrotreating system, to recover the hydrocarbons associated with the organosulfur compounds. | 01-06-2011 |
| 20110083996 | Alternative Process for Treatment of Heavy Crudes in a Coking Refinery - The present invention relates to a process for the pretreatment of heavy oils using a catalytic hydrotreating process prior to introduction to a refinery. More specifically, the invention relates to the use of an HDM reactor and an HDS reactor in order to improve the characteristics of the heavy oil, such that when the oil is introduced into the refinery, the refinery can achieve improved throughputs, increased catalysts life, increased life cycles, and a reduction in overall operation costs. | 04-14-2011 |
| Patent application number | Description | Published |
|---|
| 20090107890 | Desulfurization of whole crude oil by solvent extraction and hydrotreating - A high sulfur content crude oil feedstream is treated by mixing one or more selected solvents with a sulfur-containing crude oil feedstream for a predetermined period of time, allowing the mixture to separate and form a sulfur-rich solvent-containing liquid phase and a crude oil phase of substantially lowered sulfur content, withdrawing the sulfur-rich stream and regenerating the solvent, hydrotreating the remaining sulfur-rich stream to remove or substantially reduce the sulfur-containing compounds to provide a hydrotreated low sulfur content stream, and mixing the hydrotreated stream with the separated crude oil phase to thereby provide a treated crude oil product stream of substantially reduced sulfur content and without significant volume loss. | 04-30-2009 |
| 20090145806 | Upgrading crude oil using electrochemically-generated hydrogen - A method for upgrading a petroleum oil by a hydroprocessing reaction in which the oil is hydrogenated, includes the steps of:
| 06-11-2009 |
| 20100264065 | MEMBRANE DESULFURIZATION OF LIQUID HYDROCARBON FEEDSTREAMS - The process of the present invention is directed to the desulfurization of a sulfur-containing unrefined hydrocarbon stream with a membrane separation apparatus, where sulfur compounds are concentrated in a sulfur-rich stream on a permeate side of the membrane, and a sulfur-lean stream is recovered as a retentate. The sulfur-rich stream, which has a small volume relative to the original unrefined hydrocarbon stream, is conveyed to a subsequent desulfurization apparatus or system, such as a hydrotreating system, to recover the hydrocarbons associated with the organosulfur compounds. The stream desulfurized by conventional processes, such as hydrotreating, and the hydrocarbons desulfurized by the membrane separation apparatus may be combined to provide a low sulfur hydrocarbon effluent with minimal or no loss of the original volume. | 10-21-2010 |
