Hybrid cycle for the production of liquefied natural gas

Details Hybrid cycle for the production of liquefied natural gas Hybrid cycle for the production of liquefied natural gas

2007-05-22

2007-05-22

Doerrler, William C. (Department: 3744)

Refrigeration

Cryogenic treatment of gas or gas mixture

Liquefaction

C062S612000

Reissue Patent

active

10669121

ABSTRACT:
delete-start id="DEL-S-00001" date="20070522" ?Refrigeration process for gas liquefaction which utilizes one or more vaporizing refrigerant cycles to provide refrigeration below about −40° C. and a gas expander cycle to provide refrigeration below about −100° C. Each of these two types of refrigerant systems is utilized in an optimum temperature range which maximizes the efficiency of the particular system. A significant fraction of the total refrigeration power required to liquefy the feed gas (typically more than 5% and often more than 10% of the total) can be consumed by the vaporizing refrigerant cycles. The invention can be implemented in the design of a new liquefaction plant or can be utilized as a retrofit or expansion of an existing plant by adding gas expander refrigeration circuit to the existing plant refrigeration system.delete-end id="DEL-S-00001" ?insert-start id="INS-S-00001" date="20070522" ?Method for the liquefaction of a feed gas which comprises providing at least a portion of the total refrigeration required to cool and condense the feed gas by utilizing a first refrigeration system comprising at least one recirculating refrigeration circuit, wherein the first refrigeration system utilizes two or more refrigerant components and provides refrigeration in a first temperature range, and a second refrigeration system which provides refrigeration in a second temperature range by work expanding a pressurized gaseous refrigerant stream. Compressed refrigerant in the first refrigeration system may be cooled by refrigeration provided by a third refrigeration system. Compressed refrigerant in the second refrigeration system may be cooled by refrigeration provided by a third refrigeration system. At least a portion of the pressurized gaseous refrigerant stream, prior to work expansion, may be entirely cooled separately from cooling of the feed gas.insert-end id="INS-S-00001" ?

REFERENCES:
patent: 3511058 (1970-05-01), Becker
patent: 3747359 (1973-07-01), Streich
patent: 3763658 (1973-10-01), Gaumer et al.
patent: 4251247 (1981-02-01), Gauberthier et al.
patent: 4274849 (1981-06-01), Garier et al.
patent: 4334902 (1982-06-01), Paradowski
patent: 4525185 (1985-06-01), Newton
patent: 4755200 (1988-07-01), Liu et al.
patent: 4970867 (1990-11-01), Herron et al.
patent: 5611216 (1997-03-01), Low et al.
patent: 5701761 (1997-12-01), Alexandre et al.
patent: 5768912 (1998-06-01), Dubar
patent: 5826444 (1998-10-01), Capron et al.
patent: 5832745 (1998-11-01), Klein Nagelvoort et al.
patent: 6041620 (2000-03-01), Olszewski et al.
patent: 6041621 (2000-03-01), Olszewski et al.
patent: 6065305 (2000-05-01), Arman et al.
patent: 24 40 215 (1976-03-01), None
patent: 2440215 (1976-03-01), None
patent: 24 40 215 (1976-03-01), None
patent: 0 053 536 (1982-06-01), None
patent: 2 201 444 (1974-04-01), None
patent: WO 9527179 (1995-10-01), None
patent: WO 9611370 (1996-04-01), None
patent: WO 9713109 (1997-04-01), None
patent: WO 99/60316 (1999-11-01), None
patent: WO 99 60316 (1999-11-01), None
patent: WO 9960316 (1999-11-01), None
Finn A J et al: “Developments in Natural Gas Liquefaction”, Hydrocarbon Processing, Gulf Publishing Co. Houston, US, vol. 78, No. 4, Apr. 1999 (1999-04) pp. 47-50, 53-56, 58-59, XP-000825425 ISSN: 0018-8190.
“SDG&E: Experience Pays Off for Peaking Shaving Pioneer” in Cryogenics & Industrial Gases, Sep./Oct. 1971, pp. 25-28.
Muller, K., et al., “Natural Gas Liquefaction by an Expansion Turbine Mixture Cycle” in Chemical Economy & Engineering Reivew, vol. 8, No. 10 (No. 99), Oct. 1976.
The Liquefaction of Natural Gas in the Refrigeration Cycle with Expansion Turbine in Erdol and Kohle-Erdgas-Petrochemic Breenst-Chem vol. 27, No. 7, 379-380 (Jul. 1974).
Finn A J et al: “Developments in Natural Gas Liquefaction”, Hydrocarbon Processing, Gulf Publishing Co., Houston, Texas, vol. 78, No. 4, ,Apr. 1999 (1999-04) pp. 47-50, 53-56, 58-59, XP000825425.

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