◼PRODUCT DESCRIPTION

GR-03Acatalystisahydrogensulfideselectiveoxidationcatalystwithlargeporesizeand low specific surface area sio2as carrier and iron as active components. The catalyst has the characteristics of high total sulfur conversion rate, high selectivity and good activity stability. Its comprehensive performance and technical indicators have reached the international advanced level.

GR-03A catalyst is composed of GR-03A and GR-03B mixed in a volume ratio of4:1and then used in combi notion. GR-03A is a highly active hydrogen sulfide selective oxidation catalyst, and GR-03B is a termination oxidation reaction catalyst to prevent over- oxidation and improve oxidation selectivity.

(1)Hydrogensulfideselectiveoxidationreaction:H2s+0.502=s+H20 (2)Traceover-oxidationreaction:s+02=s02H2s+1.502=so2+H20.

(2)During the production process, as the reaction temperature increases, the hydrogen sulfide oxidation conversion rate increases, but the selectivity of generating elemental sulfur will gradually

decrease.

(3)The catalyst has the structural characteristics of large pore size and low specific surface area, which completely eliminates the diffusion restriction of process gas inside the catalyst and improves the selectivity of the catalyst.

(4)The catalyst has high total sulfur conversion rate and high selectivity.