Removal and recovery of sulfur dioxide from stack gases

Details Removal and recovery of sulfur dioxide from stack gases Removal and recovery of sulfur dioxide from stack gases

1976-10-29

1978-03-14

Bernstein, Hiram H.

Refrigeration

Processes

Circulating external gas

62 37, 55 73, 55 84, 55 20, 55 21, F25J 306

Patent

active

040783901

ABSTRACT:
An improved method and apparatus for the removal and recovery of sulfur dioxide and water vapor from gaseous effluent is disclosed. Sulfur dioxide and water vapor entrained in stack gases, emanated upon combustion of sulfur-bearing materials, are selectively liquefied under the combined influence of a reduction in temperature and an increase in pressure of the gaseous effluent. System efficiency is enhanced through proper routing of effluent gases and condensate and the incorporation of a condensate spray curtain.

REFERENCES:
patent: 1939695 (1933-12-01), Hasche
patent: 2805734 (1957-09-01), Riess et al.
patent: 2984078 (1961-05-01), Schmidt et al.
patent: 3230724 (1966-01-01), Havas

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