FIELD: chemistry.
SUBSTANCE: disclosed is a technology for selective purification of pyrolysis gas from acidic components, the first step of which involves purifying pyrolysis gas from hydrogen sulphide and regenerating the circulating absorbent solution to remove elementary sulphur from the material stream as a product of iron-catalytic oxidation of sulphides. The second step involves absorbing carbon dioxide with thermal regeneration of the sodium carbonate solution circulating in the gas treatment scheme.
EFFECT: invention provides a completely wasteless technology and enables to achieve high cost-effectiveness.
2 dwg
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