METHOD OF COKE OVEN SCRUBBING FROM HYDROGEN SULFIDE Russian patent published in 1995 - IPC

FIELD: by-product coke industry. SUBSTANCE: method involves: the first stage of gas absorption, thermic regeneration of saturated absorbent in regenerator; the second stage of gaseous mixture absorption obtained after regeneration is carried out in upper absorption zone of regenerator, and gaseous mixture enriched with hydrogen sulfide is fed for processing. After regeneration the additional gaseous flow consisting of liquid or gaseous phase is removed from the bottom part absorption zone of regenerator. Ratio of volume consumptions of removed flow and regenerated absorbent is maintained inversely with proportional concentration of carbon dioxide in these flows, and then additional flow is mixed with the parental gas. EFFECT: improved method of scrubbing. 2 dwg, 1 tbl