LNG PRODUCTION USING DUAL INDEPENDENT EXPANDER REFRIGERATION CYCLE

Title:

LNG PRODUCTION USING DUAL INDEPENDENT EXPANDER REFRIGERATION CYCLE

Document Type and Number:

Japanese Patent JP2011001554

Kind Code:

A

Abstract:

To provide a method for producing a liquefied natural gas stream that includes cooling at least a portion of a pressurized natural gas feed stream by heat exchange contact with first and second expanded refrigerants used in independent refrigeration cycles.

The first expanded refrigerant is selected from methane, ethane and treated and pressurized natural gas. The second expanded refrigerant is nitrogen.

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Inventors:

FOGLIETTA JORGE H

Application Number:

JP2010171738A

Publication Date:

January 06, 2011

Filing Date:

July 30, 2010

Export Citation:

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Assignee:

LUMMUS TECHNOLOGY INC

International Classes:

C10L3/06; F25B1/00; F25J1/00; F25J1/02

Domestic Patent References:

JPS613985A	1986-01-09
JPH11311480A	1999-11-09
JP2001165562A	2001-06-22

Foreign References:

WO1998059207A1	1998-12-30
US4911741A	1990-03-27
DE2440215A1	1976-03-04

Other References:

JPN5003014005; ＦＩＮＮ　Ａ　Ｊ: '"Ｄｅｖｅｌｏｐｍｅｎｔｓ　ｉｎ　Ｎａｔｕｒａｌ　Ｇａｓ　Ｌｉｑｕｅｆａｃｔｉｏｎ"' ＨＹＤＲＯＣＡＲＢＯＮ　ＰＲＯＣＥＳＳＩＮＧＶ７８Ｎ４, 199904, Ｐ４７-５０，　５３-５６，　５８-５９, ＧＵＬＦ　ＰＵＢＬＩＳＨＩＮＧ　ＣＯ．

Attorney, Agent or Firm:

Hideto Asamura
Hajime Asamura
Katsunori Ando
Yukihiro Ikeda

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