公开(公告)号：AU2004274706B2

公开(公告)日：2008-08-07

申请号：AU2004274706

申请日：2004-09-23

Applicant: LINDE AG ,  STATOIL ASA

Inventor： FRANKE HUBERT ,  PETTERSEN JOSTEIN ,  BOLT MANFRED ,  BAUER HEINZ ,  PAUROLA PENTTI ,  SCHIER MARC ,  SAPPER RAINER ,  FREDHEIM ARNE OLAV

IPC: F25B1/10 ,  F25B5/02 ,  F25B9/00 ,  F25J1/02

Abstract: A method of liquefying a hydrocarbon-rich gas, wherein the gas flows through a cascade of three refrigeration stages, each stage comprising a refrigerant circuit and a compressor, wherein at least part of the flow of refrigerant from the second circuit is used for the pre-cooling of the hydrocarbon rich gas in the first refrigeration stage. This balances the load on each of the compressors. By standardizing the drive units and compressors of the three coolant circuits, it is possible to maximize the attainable liquefaction capacity of the liquefaction process using tried-and-trusted drive units and compressors respectively. This method can be applied to mixed refrigerant cascades and circuits with a carbon dioxide pre-cooling circuit. This latter option has benefits for offshore use where large amounts of hydrocarbons are undesirable.

公开(公告)号：NO20061751A

公开(公告)日：2006-06-22

申请号：NO20061751

申请日：2006-04-20

Applicant: STATOIL ASA

Inventor： PETTERSEN JOSTEIN ,  PAUROLA PENTTI ,  FREDHEIM ARNE OLAV ,  BAUER HEINZ ,  BOLT MANFRED ,  SAPPER RAINER ,  FRANKE HUBERT ,  SCHIER M

IPC: F25B7/00 ,  F25B1/10 ,  F25B5/02 ,  F25B9/00 ,  F25J1/02

CPC classification number: F25J1/0052 ,  F25B1/10 ,  F25B5/02 ,  F25B9/008 ,  F25B2309/06 ,  F25B2400/13 ,  F25J1/0022 ,  F25J1/0095 ,  F25J1/0217 ,  F25J1/0218 ,  F25J1/0278 ,  F25J1/0279 ,  F25J1/0283 ,  F25J1/0292 ,  F25J1/0295 ,  F25J1/0296 ,  F25J1/0297 ,  F25J2220/64

公开(公告)号：DE102004032710A1

公开(公告)日：2006-02-09

申请号：DE102004032710

申请日：2004-07-06

Applicant: LINDE AG ,  STATOIL ASA STAVANGER

Inventor： BAUER HEINZ ,  FRANKE HUBERT ,  PAUROLA PENTTI ,  SAPPER RAINER ,  STOCKMANN RUDOLF

IPC: F25J20060101 ,  F25J1/00 ,  F25J1/02

Abstract: Method for liquefying a hydrocarbon-rich stream, especially a natural gas stream, comprises separating a first coolant mixture cycle (1-12) into a low boiling fraction (10) and a higher boiling fraction (2). The two fractions have different pressures and are fed to a pre-cooling unit (E1). Preferred Features: Pre-cooling of the hydrocarbon-rich stream is carried out in a wound heat exchanger. A second coolant mixture cycle (20-25) has a compressor (V2) with a pressure ratio of at least 10.