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Title:
APPARATUS FOR LIQUEFYING NATURAL GAS, AND METHOD RELATING TO THE SAME
Document Type and Number:
Japanese Patent JP2009263674
Kind Code:
A
Abstract:

To provide an apparatus and a method for producing liquefied natural gas.

A liquefaction plant may be coupled to a source of unpurified natural gas such as a natural gas pipeline at a pressure reduction station. A portion of the gas is drawn off and divided into a process stream 154 and a cooling stream 152. The cooling stream 152 passes through a turbo expander 156, creating work output. A compressor 158 is driven by the work putout and compresses the process stream 154. The compressed process stream is cooled, for example, by an expanded cooling stream. The cooled compressed process stream is divided into a first portion 172 and a second portion 170. A separator 180 separates the vapor from the liquid natural gas through liquefaction of the natural gas by expanding the first portion 172. A second portion 170 of the cooled compressed process stream is also expanded and used to cool the compressed process stream. Additional features and techniques may be integrated with the liquefaction process, including a water-removing cycle and a carbon dioxide-removing cycle.


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Inventors:
WILDING BRUCE M
BINGHAM DENNIS N
MCKELLAR MICHAEL G
TURNER TERRY D
RATERMAN KEVIN T
PALMER GARY L
KLINGLER KERRY M
VRANICAR JOHN J
Application Number:
JP2009145175A
Publication Date:
November 12, 2009
Filing Date:
June 18, 2009
Export Citation:
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Assignee:
BATTELLE ENERGY ALLIANCE LLC
International Classes:
B01D21/26; C10L3/06; B01D36/04; C10L3/10; F25J1/00; F25J1/02; F25J3/00; F25J3/08; F28D7/04
Domestic Patent References:
JP2005515298A2005-05-26
JP2002071861A2002-03-12
JPH01135516A1989-05-29
JP2005519153A2005-06-30
JP2009150646A2009-07-09
JP2005515298A2005-05-26
JP2002071861A2002-03-12
JPH01135516A1989-05-29
JP2005519153A2005-06-30
JP2009150646A2009-07-09
Foreign References:
US3236057A1966-02-22
US2900797A1959-08-25
US3376709A1968-04-09
US3724225A1973-04-03
US3236057A1966-02-22
US2900797A1959-08-25
US3376709A1968-04-09
US3724225A1973-04-03
Attorney, Agent or Firm:
Shinjiro Ono
Kazuo Shamoto
Yasushi Kobayashi
Akio Chiba
Hiroyuki Tomita
Toru Miyamae



 
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