FIELD: chemistry.
SUBSTANCE: invention relates to catalyst compositions for reducing sulphur compounds contained in a gas stream. Described is a catalyst composition for catalytic reduction of sulphur compounds contained in a gas stream, wherein said catalyst composition contains aluminium oxide, a group VI metal compound or a group VIII metal compound or metallic components from both group VI metal compounds and group VIII metal compounds, where said catalyst composition has a pore structure such that pores with pore diameter of more than 10000 Å account for more than 10% of total pore volume of said catalyst composition and pores with pore diameter less than 70 Å account for more than 10% of total pore volume of said catalyst composition. Described is a hydrolysis method, which involves feeding a gas stream into a reactor with temperature at the input of said reactor ranging from 115°C to 300°C, wherein said gas stream contains a sulphur compound, and bringing said gas stream into contact with said catalyst composition, and outputting from said reactor a treated gas stream having low concentration of said sulphur compound.
EFFECT: described catalyst composition provides high degree of conversion of sulphur compounds.
9 cl, 2 tbl, 3 dwg, 2 ex
