METHOD OF LOW-TEMPERATURE DECOMPOSITION OF HYDROGEN SULPHIDE WITH PRODUCTION OF HYDROGEN AND SULFUR Russian patent published in 2020 - IPC B01J37/34 B01D53/52 C01B17/04 C01B17/16 B01J23/28 B01J23/30 B01J23/75 B01J23/755 

FIELD: chemistry.

SUBSTANCE: disclosed is a method of decomposing hydrogen sulphide with production of hydrogen and sulfur, involving contacting a hydrogen sulphide-containing feedstock with a catalyst, the structure of which is formed from amorphous nanoparticles of metals or their alloys, which are deposited on the surface of granular carriers by laser electrospraying, wherein initial substances for forming the catalyst structure are selected from metals of Mo, W, Ni, Co or their alloys, and as supports there used are materials which are chemically inert under the process conditions, as well as providing the required mechanical and thermal strength of the catalyst, wherein active phase of catalyst is applied on outer, visible surface of carrier, after which process of decomposition of hydrogen sulphide raw material is carried out by reacting catalyst with hydrogen sulphide material at temperature of 115–400 °C with formation of hydrogen and elemental sulfur in liquid phase, wherein the elementary sulfur output from the active zone of the process is carried out continuously under the action of the gas stream due to the sulfur fluidity.

EFFECT: technical result is creation of new efficient technology of continuous low-temperature process of decomposition of hydrogen sulphide into commodity sulfur and hydrogen with possibility of realization of degree of decomposition of hydrogen sulphide close to 100 %.

1 cl, 1 ex