Patent application number | Description | Published |
20080289360 | Refrigerant Circuit - The present invention relates to a refrigerant circuit ( | 11-27-2008 |
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 |
20090241593 | METHOD AND APPARATUS FOR COOLING A HYDROCARBON STREAM - A method of liquefying natural gas from a feed stream ( | 10-01-2009 |
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 |
20100024474 | METHOD AND APPARATUS FOR COOLING A HYDROCARBON STREAM - Method of cooling a hydrocarbon stream ( | 02-04-2010 |
20100071409 | METHOD AND APPARATUS FOR LIQUEFYING A HYDROCARBON STREAM - A method and apparatus for liquefying a hydrocarbon stream ( | 03-25-2010 |
20100115993 | PROCESS FOR REMOVING MERCAPTANS FROM LIQUEFIED NATURAL GAS - The invention provides a process for producing purified natural gas, the process comprising the steps of: expanding a pressurised natural gas stream comprising at least 4 ppmv of mercaptans and supplying it to a first separation column, in which the natural gas stream is separated into a gaseous overhead stream enriched in methane and a first fraction enriched in mercaptans; withdrawing the gaseous overhead stream enriched in methane from the separation column to obtain the purified natural gas; with drawing the fraction enriched in mercaptans from the separation column; removing mercaptans from the first fraction enriched in mercaptans. | 05-13-2010 |
20110239701 | METHOD OF REJECTING NITROGEN FROM A HYDROCARBON STREAM TO PROVIDE A FUEL GAS STREAM AND AN APPARATUS THEREFOR - Method of, and apparatus for, rejecting nitrogen from a hydrocarbon stream to provide a fuel gas stream. A hydrocarbon stream is at least partially liquefied and subsequently expanded. The expanded hydrocarbon stream is fractionated in a fractionation column to provide an nitrogen-rich hydrocarbon stream and a nitrogen-lean hydrocarbon stream. The nitrogen-rich hydrocarbon stream is partially condensed in a condenser by cooling against a refrigerant circulated in a dedicated first refrigerant circuit, and phase-separated to provide a nitrogen-rejection stream and a nitrogen-lean reflux stream which is returned to the fractionation column. The nitrogen-lean hydrocarbon stream is partially vaporized and phase-separated to provide a vapour stream that is returned to the fractionation column and a liquefied nitrogen-lean hydrocarbon stream that is subjected to sub-cooling. The fuel gas stream is generated from the sub-cooled nitrogen-lean hydrocarbon stream. | 10-06-2011 |
20110277498 | METHOD AND APPARATUS FOR CONTROLLING A REGRIGERANT COMPRESSOR, AND USE THEREOF IN A METHOD OF COOLING A HYDROCARBON STREAM - A method of controlling one or more refrigerant compressors ( | 11-17-2011 |