The invention discloses a
hydrogen sulfide and
carbonyl sulfide resource recycling method based on a
molten salt. The method includes the following steps of (1) functional
molten salt preparation, wherein a
calcium salt or a
barium salt is added into an
alkali metal mixing
molten salt system, then
grinding and homogenizing are conducted, and the mixture is heated to melt to form the liquid functional molten salt; (2)
hydrogen sulfide and
carbonyl sulfide adsorption and enrichment, wherein the functional molten salt is heated to 450-750 DEG C, then carbon
powder is added into the molten salt, and then gas with
hydrogen sulfide and
carbonyl sulfide is introduced into the molten salt to make the
hydrogen sulfide, the carbonyl sulfide and the molten salt be in complete
contact reaction; (3) sulfide recycling, wherein introduction of the gas with the
hydrogen sulfide and the carbonyl sulfide is paused, the reacted molten salt
system is supplemented with the
calcium salt or the
barium salt and stirred for mixing, then sulfide generated by reaction still stands for
precipitation, and finally the sulfide is exported from the molten salt
system at a high temperature for recycling. According to the method, the functional molten salt is used, instant purification of the gas with the
hydrogen sulfide and the carbonyl sulfide at a medium-high temperature is promoted, long-term stable operation of the molten salt system is guaranteed, and resource recycling of
sulfur is achieved.