Process for the removal of impurities from exhaust gases

Details Process for the removal of impurities from exhaust gases Process for the removal of impurities from exhaust gases

1988-01-19

1989-06-06

Warner, Steven E.

Refrigeration

Processes

Circulating external gas

110216, 422244, F25J 500

Patent

active

048359742

ABSTRACT:
The removal of impurities from exhaust gases takes place by cooling the exhaust gas by means of a circulation gas and condensing out of the impurities in two groups of reversible heat exchangers. Each group consists of two precoolers and one low temperature cooler. While the impurities condense out in one group, they are thawed in the other group. In order to simplify the control, only one precooler is used in each group, which is charged with two inside gases, namely, the exhaust gas and the circulation gas. Only two simple control systems which can be easily program-controlled are then required for the purification process. In addition, the temperature increase of the circulation gas in the circulation gas blower can be utilized for heating up purposes in the group to be thawed.

REFERENCES:
patent: 3418820 (1968-12-01), Swearihgen
patent: 4169133 (1979-09-01), Staege
patent: 4252772 (1981-02-01), Way
patent: 4609388 (1986-09-01), Adler et al.

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