Equipment and process for liquefaction of LNG boiloff gas

Details Equipment and process for liquefaction of LNG boiloff gas Equipment and process for liquefaction of LNG boiloff gas

2009-02-19

2009-11-10

Tyler, Cheryl J (Department: 3744)

Refrigeration

Storage of solidified or liquified gas

With vapor discharged from storage receptacle

C062S606000, C062S611000, C062S612000

Reexamination Certificate

active

07614241

ABSTRACT:
A design for equipment and process for reliquefaction of LNG boiloff gas, primarily for shipboard installation, has high thermodynamic efficiency and lower capital cost, smaller size (volume, footprint), lower weight, and less need for maintenance than systems utilizing the prior art. The main refrigerant gas compressor is reduced to a single stage turbocompressor. Optional elements include: compression of boiloff gas at ambient temperature; compression of boiloff gas in one or two stages; turboexpansion of refrigerant gas incorporating one or two turboexpanders; turboexpander energy recovery by mechanical loading, compressor drive, or electric generator; refrigerant sidestream for cooling at the lowest temperatures.

REFERENCES:
patent: 5755114 (1998-05-01), Foglietta
patent: 6041620 (2000-03-01), Olszewski et al.
patent: 6199403 (2001-03-01), Cole et al.
patent: 6438994 (2002-08-01), Rashad et al.
patent: 6449983 (2002-09-01), Pozivil
patent: 6530241 (2003-03-01), Pozivil
patent: 2001/0042376 (2001-11-01), Johnson et al.
patent: 2006/0090508 (2006-05-01), Howard
patent: WO98/43029 (1998-10-01), None
patent: WO2005/047761 (2005-05-01), None
patent: WO2005/071333 (2005-08-01), None
Gersmeyer and Isalkski, “On-Board Reliquefaction for LNG Ships,” Tractebel Gas Engineering, www.tractebel.de, p. 3, Figure 4 and p. 8.
Sillars, “Liquefaction at Sea,” Horizons, Issue 10, Dec. 2004, pp. 10-11; Lloyd's Register, www.lr.org/publications, “Document Finder”.
“LNG Reliquefaction System,” Hamworthy Gas Systems, “Moss RS (TM) Concept”; www.hamworthy.com/products.
“EcoRel Boiloff Gas Reliquefaction Plant-Data Sheet”; www.cryostar.com/web/Ing-carrier-equipment-ecorel.php.
“LNG transport-the future here today”; The Cryostar Magazine; Spring 2004, No. 3, p. 8, Cryostar France SA, Hesingue France.

Affiliated with

Also associated with

Rating

Equipment and process for liquefaction of LNG boiloff gas does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Equipment and process for liquefaction of LNG boiloff gas, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Equipment and process for liquefaction of LNG boiloff gas will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4089054