Gas sample preparation system and method

Details Gas sample preparation system and method Gas sample preparation system and method

1974-07-23

1976-08-24

Adee, John

Gas separation

Means within gas stream for conducting concentrate to collector

55269, 55270, 73 23, 734215R, B01D 5322

Patent

active

039764508

ABSTRACT:
A gas sample flowing through the lower chamber of a diffusion cell diffuses through a membrane into the upper chamber at a rate above a determined minimum. As the sample diffuses through the membrane, substantially all of the water and any particulates are removed from the gas. A clean carrier gas flows through the upper chamber at a constant rate to dilute the diffused gas and convey it to gas analyzers. Upon acquisition, a gas sample is maintained at a temperature above its dew point until it passes from the lower chamber and the membrane is maintained at a substantially constant temperature.

REFERENCES:
patent: 3545931 (1970-12-01), McKinley, Jr.
patent: 3550355 (1970-12-01), Remus et al.
patent: 3674435 (1972-07-01), Van Luik, Jr.
patent: 3721065 (1973-03-01), Robicheaux et al.
Dynascience Publication 42M671, effective date prior to 1/2/72.
Advances in Air Pollution Control Technology, 7a American Institute of Chemical Engineers, 5-69.
Ind. Lab. (U.S.A.), vol. 37, No. 6, June, 1971, pp. 949 and 950.

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