Selective oxidation of hydrogen sulfide in the presence of bismuth-based catalysts

摘要

The present invention discloses a method of selectively oxidizing hydrogen sulfide to elemental sulfur, in which a H2S-containing gas mixture contacts with an oxygen-containing gas at 50 DEG -500 DEG C. in the presence of a bismuth-based catalyst. The reaction product mixture contains substantially no sulfur dioxide. The bismuth-based catalyst may further contain molybdenum or vanadium atom.