Title:
LNG PRODUCTION USING DUAL INDEPENDENT EXPANDER REFRIGERATION CYCLES
Document Type and Number:
WIPO Patent Application WO2002070972
Kind Code:
A3
Abstract:
A process for producing a liquified 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 that are 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.
Inventors:
FOGLIETTA JORGE H
Application Number:
PCT/US2002/006792
Publication Date:
October 16, 2003
Filing Date:
March 06, 2002
Export Citation:
Assignee:
ABB LUMMUS GLOBAL INC (US)
International Classes:
F25B1/00; C10L3/06; F25J1/00; F25J1/02; (IPC1-7): F25J3/02; F25J1/02
Domestic Patent References:
| WO2001044735A1 | 2001-06-21 |
Foreign References:
| US5768912A | 1998-06-23 | |||
| US5916260A | 1999-06-29 | |||
| US4911741A | 1990-03-27 |
Other References:
FINN A J ET AL: "DEVELOPMENTS IN NATURAL GAS LIQUEFACTION", HYDROCARBON PROCESSING, GULF PUBLISHING CO. HOUSTON, US, vol. 78, no. 4, April 1999 (1999-04-01), pages 47 - 50,53-56,58-59, XP000825425, ISSN: 0018-8190
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