Patent application number | Description | Published |
20090299120 | PROCESS FOR PRODUCING PURIFIED GAS - Process for producing purified hydrocarbon gas from a gas stream comprising methane and acidic contaminants, which process comprises the steps of cooling the gas stream in a first cooling stage to a first temperature to form a first mixture of solid and/or liquid acidic contaminants and a vapour containing gaseous hydrocarbons and a reduced amount of acidic contaminants; separating the solid and/or liquid acidic contaminants from the first mixture, yielding partly purified gas; cooling the partly purified gas in a second cooling step to a second temperature to form a second mixture comprising purified hydrocarbon gas and further solid and/or liquid acidic contaminants; and separating the further solid and/or liquid acidic contaminants from the second mixture, yielding the purified hydrocarbon gas. | 12-03-2009 |
20090299122 | PROCESS FOR PRODUCING A PURIFIED HYDROCARBON GAS - Process for producing purified hydrocarbon gas from a gas stream comprising methane and acidic contaminants, which process comprises the steps cooling the gas stream by expansion to form a mixture comprising solid and/or liquid acidic contaminants and a vapour containing gaseous hydrocarbons and a reduced amount of acidic contaminants; separating the solid and/or liquid acidic contaminants from the first mixture, yielding partly purified gas; compressing the partly purified gas; and contacting the compressed partly purified gas with an absorbing liquid to yield the purified hydrocarbon gas. | 12-03-2009 |
20110009684 | MULTI-STAGE MEMBRANE SEPARATION PROCESS - The invention concerns a process for the removal of gaseous acidic contaminants, especially carbon dioxide and/or hydrogen sulphide, in two or more stages from a gaseous hydrocarbonaceous feedstream ( | 01-13-2011 |
20110041687 | MULTI-STAGE MEMBRANE SEPARATION PROCESS - The invention concerns a process for the removal of gaseous acidic contaminants, especially carbon dioxide and/or hydrogen sulphide, in two or more stages from a gaseous hydrocarbonaceous feedstream ( | 02-24-2011 |
20110094264 | PRODUCING PURIFIED HYDROCARBON GAS FROM A GAS STREAM COMPRISING HYDROCARBONS AND ACIDIC CONTAMINANTS - Process for producing purified hydrocarbon gas from a gas stream comprising hydrocarbons and acidic contaminants, which process comprises the steps: (a) cooling the gas stream to a temperature to form a mixture comprising solid and optionally liquid acidic contaminants and a vapour containing gaseous hydrocarbons; (b) separating the solid and optionally liquid acidic contaminants from the mixture in a vessel, yielding the purified hydrocarbon gas; (c) providing heat to at least a part of the solid and optionally liquid acidic contaminants to melt at least part of the solid acidic contaminants, yielding a heated contaminant-rich stream; (d) withdrawing the heated contaminant-rich stream from the vessel; wherein the process further comprises: (e) reheating at least a part of the heated contaminant-rich stream to form a reheated recycle stream; and (f) recycling at least a part of the reheated recycle stream to the vessel. | 04-28-2011 |
20110132034 | TWO STAGE PROCESS FOR PRODUCING PURIFIED GAS - The present invention provides a process for producing purified gas from a feed gas stream comprising methane and gaseous contaminants, the process comprising the steps of: 1) providing the feed gas stream; 2) cooling the feed gas stream to a temperature at which at least part of the feed gas stream is present in the liquid phase; 3) separating the cooled feed gas stream by means of cryogenic distillation into a bottom stream rich in contaminants and lean in methane, and into a top stream rich in methane and lean in gaseous contaminants, in which the bottom stream contains between 0.5 and 15% of the methane present in the feed gas stream; 4) cooling the stream rich in methane to a temperature at which solid and/or liquid phase contaminants are formed; 5) introducing the cooled stream of step 4) into a gas/liquid/solids separation vessel, and 6) removing from the gas/liquid/solids separation vessel the purified gas and a stream rich in contaminants. | 06-09-2011 |
20110167869 | PROCESS AND APPARATUS FOR REMOVING GASEOUS CONTAMINANTS FROM GAS STREAM COMPRISING GASEOUS CONTAMINANTS - A transformer has a toroidal core with an opening therein and a plurality of wires to define a central winding section, a plurality of outer twisted wire sections and a plurality of wire proximity sections positioned between each outer twisted wire section and the central winding section. The central winding section includes a plurality of wires wrapped around the toroidal core and coupling a conductor of a primary side of a transformer and a conductor of a secondary side of a transformer. Each outer twisted wire section includes at least a pair of wires twisted together in a predetermined twisted pattern that are electrically connected to but spaced from the central winding section. The wire proximity section is configured to maintain physical proximity between the conductor of the primary side of the transformer and the conductor of the secondary side of the transformer. | 07-14-2011 |