Process for the removal of gaseous impurities from the exhaust g

Details Process for the removal of gaseous impurities from the exhaust g Process for the removal of gaseous impurities from the exhaust g

1974-05-06

1976-03-16

Adee, John

Gas separation

Means within gas stream for conducting concentrate to collector

55 94, 423522, B01D 4714

Patent

active

039444015

ABSTRACT:
Sulfur compounds oxidizable to form sulfuric acid and organic compounds oxidizable to CO.sub.2 and H.sub.2 O are removed from an exhaust gas of a contact-process plant for producing sulfuric acid by treating the exhaust gas with a scrubbing solution consisting of dilute sulfuric acid and peroxydisulfuric acid. The peroxydisulfuric acid is produced electrolytically from fresh dilute sulfuric acid and the resulting electrolyte is continuously introduced into the scrubbing acid cycle. The exhaust gas is treated in a vertical venturi with uniflow, i.e. codirectional flow of the gas and the scrubbing solution, and the gas is then passed through a horizontal venturi and subsequently upwardly through a packing layer.

REFERENCES:
patent: 3523880 (1970-08-01), Parsi
patent: 3524801 (1970-08-01), Parsi
patent: 3760061 (1973-09-01), Hammond
patent: 3780499 (1973-12-01), Dorr et al.
patent: 3788043 (1974-01-01), Dorr et al.

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