Effect of reaction parameters on the quality of captured sulfur in Claus process

► Examined quality of collected sulfur deposits under different reaction conditions. ► All sulfur deposits were analyzed and proved to be of cyclo-S8 (α-sulfur) allotrope. ► Equivalence ratio did not show significant effect on the quality of sulfur deposits. ► Carbon dioxide did not show considerable effect on sulfur deposits quality as well. ► Methane and propane caused sulfur deposits to contain considerable amounts of carbon.