Gas separation: processes – Solid sorption – Including reduction of pressure
Patent
1994-02-08
1995-04-04
Spitzer, Robert
Gas separation: processes
Solid sorption
Including reduction of pressure
95103, 95105, 95130, B01D 5304
Patent
active
054033853
ABSTRACT:
The process is conducted in a circuit having first and second adsorbers and a product reservoir vessel, connected serially. The feedstock is a gas mixture containing contaminant and product components (for example, air containing N.sub.2 and O.sub.2). The process steps involved are: (1) feeding a charge of feed gas into the first adsorber, temporarily retaining it therein, and pressurizing it, so that the adsorbent adsorbs most of the contaminant component and purified product gas is produced; (2) co-currently depressurizing the first adsorber by discharging purified product gas through the second adsorber and reservoir vessel; (3) counter-currently venting both adsorbers; (4) partly re-pressurizing both the adsorbers with purified gas from the reservoir vessel; and then repeating steps (1)-(4) inclusive. The process includes the following advantages over PSA systems using parallel arranged adsorbers: reversal of product concentration gradient in the adsorbers is avoided; and co-current de-pressurization of the first adsorber to a very low level prior to counter-current venting is made possible, improving process efficiency.
REFERENCES:
patent: Re29941 (1979-03-01), Bird
patent: 3142547 (1964-07-01), Marsh et al.
patent: 3155468 (1964-11-01), deMontgareuil et al.
patent: 3430418 (1969-03-01), Wagner
patent: 3564816 (1971-02-01), Batta
patent: 3619984 (1971-11-01), Domine et al.
patent: 3636679 (1972-01-01), Batta
patent: 3788036 (1974-01-01), Lee et al.
patent: 3973931 (1976-08-01), Collins
patent: 3977845 (1976-08-01), Walter
patent: 4015956 (1977-04-01), Munzner et al.
patent: 4021210 (1977-05-01), Streich et al.
patent: 4194891 (1980-03-01), Earls et al.
patent: 4194892 (1980-03-01), Jones et al.
patent: 4299596 (1981-11-01), Benkmann
patent: 4432774 (1984-02-01), Juntgen et al.
patent: 4572723 (1986-02-01), Ward
patent: 4650501 (1987-03-01), Hiscock et al.
patent: 4715867 (1987-12-01), Vo
patent: 4732578 (1988-03-01), Benkmann
patent: 4848985 (1989-07-01), Sadkowski
patent: 4892566 (1990-01-01), Bansal et al.
patent: 5122164 (1992-06-01), Hirooka et al.
Alberta Research Council
Spitzer Robert
LandOfFree
Serial flow pressure swing adsorption process for gas separation does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Serial flow pressure swing adsorption process for gas separation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Serial flow pressure swing adsorption process for gas separation will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2378504