METHOD AND DEVICE FOR PROCESSING ACID GAS ENRICHED WITH CARBON DIOXIDE IN CLAUS PROCESS Russian patent published in 2015 - IPC B01D53/14 

FIELD: chemistry.

SUBSTANCE: group of inventions relates to method of processing acid gas enriched with carbon dioxide in Claus process, by means of which industrial gases are purified from undesirable sulphur compounds, in which sulphur-containing components are removed by means of selective absorbing solvent in scrubbing section, and acid gas, released as a result of regeneration, containing sulphur-containing components and carbon dioxide, is separated into at least two fractions of acid gas, where at least one obtained fraction of acid gas has higher content of sulphur-containing components, and sulphur-containing components, contained in fraction with the highest content of hydrogen sulphide is converted by means of burner at thermal reaction stage of Claus furnace with formation of sulphur dioxide, with application of oxygen-containing gas, hot flue gases are withdrawn into closed Claus reaction chamber, located below burner down technological flow; remaining depleted of carbon dioxide acid gas fractions supplied from regeneration installation, are supplied into Claus reaction chamber, where they are mixed with flue gases discharged from burner. Group of inventions also relates to device used for said method realisation, with device containing absorption column, at least one stage of flash-desorption, regeneration column, Claus burner, equipped with bypass control, and Claus reactor.

EFFECT: increased method efficiency.

29 cl, 3 dwg