Two-stage removal of sulfur dioxide from process gas using treat

Details Two-stage removal of sulfur dioxide from process gas using treat Two-stage removal of sulfur dioxide from process gas using treat

1977-12-09

1979-02-20

Novosad, Stephen J.

Wells

Processes

In situ combustion

166267, 208 11R, 299 2, 423244, E21B 4324

Patent

active

041401816

ABSTRACT:
Sulfur dioxide is removed from a process gas by passing the process gas through a first fragmented permeable mass of particles containing treated oil shale and including alkaline earth metal oxides at a sufficient temperature to remove sulfur dioxide from the process gas. Gas containing sulfur dioxide from the first fragmented mass is passed through a second fragmented permeable mass of particles containing treated oil shale and including alkaline earth metal oxides. Water in the second fragmented mass combines with alkaline earth metal oxides in the second fragmented mass and sulfur dioxide in the gas from the first fragmented mass with resultant removal of sulfur dioxide from gas from the first fragmented mass.

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patent: 4069132 (1978-01-01), Deering
Riesenfeld et al., Gas Purification, (Gulf 2nd ed.), 1974, pp. 298-302.

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