Pressurizing with and recovering helium

Details Pressurizing with and recovering helium Pressurizing with and recovering helium

1993-04-21

1994-09-06

Spitzer, Robert

Gas separation: processes

Selective diffusion of gases

Selective diffusion of gases through substantially solid...

95 53, 95121, 96 7, 96 9, 96121, 96143, B01D 5304, B01D 5322

Patent

active

053444809

ABSTRACT:
A process and system for pressurizing a vessel for integrity testing with gas comprising helium, recovering the gas comprising helium, and purifying the gas comprising helium for reuse. The process for purifying the gas stream comprising helium comprises drying the gas stream; separating the dried gas stream in a membrane separator stage into a helium-enriched permeate product stream and a helium-depleted raffinate stream; recovering helium in the raffinate stream in a membrane stripper stage thereby producing a purge stream; and purging water from the dryer with the purge stream.

REFERENCES:
patent: 3246449 (1966-04-01), Stern et al.
patent: 3250080 (1966-05-01), Garwin
patent: 3324626 (1967-06-01), Dresser et al.
patent: 3713271 (1973-01-01), Franz et al.
patent: 3838553 (1974-10-01), Doherty
patent: 4282743 (1981-08-01), Pickett
patent: 4497640 (1985-02-01), Fournie et al.
patent: 4675030 (1987-06-01), Czarnecki et al.
patent: 4701187 (1987-10-01), Choe et al.
patent: 4717407 (1988-01-01), Choe et al.
patent: 4881953 (1989-11-01), Prasad et al.
patent: 4892564 (1990-01-01), Cooley
patent: 4919865 (1990-04-01), Nelson
patent: 4931070 (1990-06-01), Prasad
patent: 4934148 (1990-06-01), Prasad et al.
patent: 4981498 (1991-01-01), Bikson et al.
patent: 4984450 (1991-01-01), Burger
patent: 5004482 (1991-04-01), Haas et al.
patent: 5034025 (1991-07-01), Overman, III
patent: 5067971 (1991-11-01), Bikson et al.
patent: 5122355 (1992-06-01), Prasad et al.
patent: 5224350 (1993-07-01), Mehra
patent: 5240472 (1993-08-01), Sircar
Umezu et al, "New Automatic Leak Testing System with Helium Mass Spectrometer Leak Detector", Journal of the Vacuum Society of Japan, vol. 17, No. 2, 1974, pp. 45-52.
Letter of Apr. 4, 1991 from Union Carbide Industrial Gases Inc. to Advanced Technologies, Inc.

Affiliated with

Also associated with

Rating

Pressurizing with and recovering helium does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Pressurizing with and recovering helium, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pressurizing with and recovering helium will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1327101