Patent application number | Description | Published |
20090188277 | METHOD AND APPARATUS FOR CONTROLLING A REFRIGERANT COMPRESSOR, AND METHOD FOR COOLING A HYDROCARBON STREAM - A refrigerant stream is passed through at least one heat exchanger to provide a first at least partially evaporated stream and a second at least partially evaporated stream. A first compressor feed stream is provided from the first partially evaporated stream, and a second compressor feed stream is provided from the second partially evaporated stream. The first compressor feed stream is passed through a first refrigerant compressor and the second compressor feed stream through a second compressor, to provide first and second compressed streams, which are combined at a common pressure. The first refrigerant compressor is controlled by heating the second at least partially evaporated stream or the second compressor feed stream, or vice versa. | 07-30-2009 |
20090282862 | METHOD AND APPARATUS FOR PRODUCING A COOLED HYDROCARBON STREAM - A method and apparatus for cooling two or more liquefied hydrocarbon streams. First ( | 11-19-2009 |
20100139317 | METHOD OF COOLING A HYDROCARBON STREAM AND AN APPARATUS THEREFOR - A hydrocarbon feed stream is separated in one or more separators to provide a hydrocarbon stream and at least one methane-lean stream comprising a first ethane-rich header feed stream. The hydrocarbon stream is heat exchanged with at least one refrigerant stream to provide at least one cooled hydrocarbon stream and at least one at least partially evapourated refrigerant stream. The first ethane-rich header feed stream is passed to at least one fuel gas header, from which header fuel gas is removed as at least one fuel gas stream. | 06-10-2010 |
20100186929 | METHOD AND APPARATUS FOR COOLING A HYDROCARBON STREAM - A mixed refrigerant stream ( | 07-29-2010 |
20100192626 | METHOD AND APPARATUS FOR LIQUEFYING A GASEOUS HYDROCARBON STREAM - A method and apparatus for liquefying a gaseous hydrocarbon stream such as natural gas. The method comprises at least the steps of providing a feed stream ( | 08-05-2010 |
20100293997 | METHOD AND APPARATUS FOR COOLING AND/OR LIQUEFYING A HYDROCARBON STREAM - A refrigerant stream is provided at a refrigerant pressure, and passed through at least three heat exchange steps operating at different pressures. A hydrocarbon stream is passed through at least two of these heat exchange steps to provide a cooled stream. A fraction of the refrigerant stream is expanded and evaporated at each heat exchange step to a different pressure, to provide a first evaporated refrigerant stream at a first evaporation pressure, and at least two other evaporated refrigerant streams at evaporation pressures lower than the first. The first evaporated refrigerant stream is compressed through a highest-pressure compressor to provide at least a fraction of the refrigerant stream at the refrigerant pressure, and the other evaporated refrigerant streams are compressed through at least two parallel lower pressure compressors to provide two or more part-compressed refrigerant streams, all of which part-compressed refrigerant streams are passed through the highest pressure compressor. | 11-25-2010 |
20100319361 | METHOD OF PRODUCING A GASIFIED HYDROCARBON STREAM; METHOD OF LIQUEFYING A GASEOUS HYDROCARBON STREAM; AND A CYCLIC PROCESS WHEREIN COOLING AND RE-WARMING A NITROGEN-BASED STREAM, AND WHEREIN LIQUEFYING AND REGASIFYING A HYDROCARVON STREAM - A first liquefied hydrocarbon stream is provided from a first source and a second liquefied hydrocarbon stream is provided from a second source. The second liquefied hydrocarbon stream has been liquefied by cooling solely against a first cooled nitrogen-based stream. The first and second liquefied hydrocarbon streams are gasified to produce a gasified hydrocarbon stream, thereby cooling a gaseous nitrogen-based stream against the gasifying first and second liquefied hydrocarbon streams to provide a second cooled nitrogen-based stream. | 12-23-2010 |
20120103011 | METHOD AND APPARATUS FOR PRODUCING A COOLED HYDROCARBON STREAM - Method and apparatus for producing a cooled hydrocarbon stream ( | 05-03-2012 |
20130096359 | METHOD OF TREATING A HYDROCARBON STREAM COMPRISING METHANE, AND AN APPARATUS THEREFOR - A wet hydrocarbon stream ( | 04-18-2013 |
20130098103 | METHOD OF TREATING A HYDROCARBON STREAM COMPRISING METHANE, AND AN APPARATUS THEREFOR - In a method and apparatus for treating a hydrocarbon stream having methane, at least a part of the hydrocarbon stream and a main refrigerant stream are cooled by indirect heat exchanging against a pre-cooling refrigerant. The pre-cooled hydrocarbon stream is passed to a first inlet of an extraction column, and an effluent stream is discharged from the extraction column. The effluent stream and at least a part of the pre-cooled main refrigerant stream are passed to a further heat exchanger, where they are both cooled thereby providing a cooled methane-enriched hydrocarbon stream and at least one cooled main refrigerant stream. The passing of the effluent stream to the further heat exchanger and the passing of the pre-cooled hydrocarbon stream to the first inlet of the extraction column includes indirectly heat exchanging the effluent stream against the pre-cooled hydrocarbon stream. | 04-25-2013 |