Gas separation: processes – Solid sorption – Including reduction of pressure
Reexamination Certificate
2008-07-08
2008-07-08
Lawrence, Frank M (Department: 1797)
Gas separation: processes
Solid sorption
Including reduction of pressure
C095S098000, C095S101000, C095S102000, C095S130000
Reexamination Certificate
active
11264278
ABSTRACT:
The present invention generally relates to large capacity (e.g., greater than 350 tons/day O2) vacuum pressure adsorption (VPSA) systems and processes that employ a single train including four beds, at least one feed compressor feeding two beds simultaneously at any given instant in time, and a single vacuum pump. The compressor(s) and the vacuum pump can be utilized 100% of the time. Use of product quality gas for purging is avoided, with about 10-20% improvement in O2productivity and 5-10% reduction in capital cost expected.
REFERENCES:
patent: 4859217 (1989-08-01), Chao
patent: 4869894 (1989-09-01), Wang et al.
patent: 4892565 (1990-01-01), Schmidt et al.
patent: 4915711 (1990-04-01), Kumar
patent: 5330561 (1994-07-01), Kumar et al.
patent: 5413625 (1995-05-01), Chao et al.
patent: 5518526 (1996-05-01), Baksh et al.
patent: 5656068 (1997-08-01), Smolarek et al.
patent: 5997612 (1999-12-01), Doong
patent: 6007606 (1999-12-01), Baksh et al.
patent: 6010555 (2000-01-01), Smolarek et al.
patent: 6017382 (2000-01-01), Ji et al.
patent: 6027548 (2000-02-01), Ackley et al.
patent: 6210466 (2001-04-01), Whysall et al.
patent: 6340382 (2002-01-01), Baksh et al.
patent: 6428607 (2002-08-01), Xu et al.
patent: 6471748 (2002-10-01), Ackley
patent: 6500234 (2002-12-01), Ackley et al.
patent: 6506234 (2003-01-01), Ackley et al.
patent: 6527830 (2003-03-01), Neu et al.
patent: 6743745 (2004-06-01), Jaussaud et al.
patent: 6780806 (2004-08-01), Yang et al.
patent: 6790260 (2004-09-01), Ackley et al.
patent: 7179324 (2007-02-01), Baksh et al.
patent: 2002/0121193 (2002-09-01), Baksh et al.
patent: 2003/0097930 (2003-05-01), Kleinberg et al.
patent: 0 598 319 (1994-05-01), None
patent: 1 219 339 (2002-07-01), None
Baksh Mohamed Safdar Allie
Rosinski Andrew
Feng, Esq. Flora W.
Lawrence Frank M
Praxair Technology Inc.
LandOfFree
Pressure swing adsorption process for large capacity oxygen... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Pressure swing adsorption process for large capacity oxygen..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pressure swing adsorption process for large capacity oxygen... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3956627