Title:
液化方法及び液化装置
Document Type and Number:
Japanese Patent JP2012509457
Kind Code:
A
Abstract:
A feed gas is liquefied using a closed loop refrigeration system in which a cooled compressed gaseous refrigerant stream (150) is expanded (136) to provide a first expanded gaseous refrigerant stream (154) that is substantially vapor and is used to cool and substantially liquefy a feed gas stream (100) through indirect heat exchange (110). The substantially liquefied feed gas stream (102) preferably is subcooled through indirect heat exchange (112) against a second expanded gaseous refrigerant stream (172) that preferably also is substantially vapor and can be provided by a cooled compressed gaseous refrigerant stream (170) or by a portion of the first expanded gaseous refrigerant stream (152). Cooling duty for the compressed gaseous refrigerant stream (146) is provided by a portion (160) of the first expanded gaseous refrigerant stream (152), gaseous refrigerant (156) partially warmed by said heat exchange (110) against feed gas, and/or second expanded gaseous refrigerant stream (174) warmed by said subcooling (112).
Inventors:
Brostow, Adam Adrian
Roberts, Mark Julian
Roberts, Mark Julian
Application Number:
JP2011543838A
Publication Date:
April 19, 2012
Filing Date:
November 16, 2009
Export Citation:
Assignee:
AIR PRODUCTS AND CHEMICALS INCORPORATED
International Classes:
F25J1/00; C10L3/06
Domestic Patent References:
| JPH02106688A | 1990-04-18 | |||
| JPH10501053A | 1998-01-27 | |||
| JP2001226685A | 2001-08-21 | |||
| JP2007506064A | 2007-03-15 |
Attorney, Agent or Firm:
Atsushi Aoki
Takashi Ishida
Tetsuji Koga
Satoshi Deno
Nobuo Sekine
Kazuya Shiokawa
Takashi Ishida
Tetsuji Koga
Satoshi Deno
Nobuo Sekine
Kazuya Shiokawa