Device, process, and catalyst intended for desulfurization/demercaptanization/dehydration of gaseous hydrocarbons

A device for desulfurization, demercaptanization, and dehydration of gaseous hydrocarbons, comprising:

• a desulfurization/demercaptanization/dehydration reactor, said reactor being loaded with a catalyst for converting hydrogen sulfide and mercaptans into a sulfur and disulfides, respectively, in an absorbent solution, the catalyst comprising mixed ligand complexes based on ferric halogenides, cupric halogenides, or a mixture of ferric and cupric halogenides,
• a means for a sulfur pulp solution withdrawal from the reactor,
• a unit for sulfur separation and absorbent regeneration which receives the sulfur pulp solution,
• wherein an operating temperature, a gas pressure, and an absorbent composition are determined by gas dehydration requirements,
• wherein said device comprises at least a means for supplying into the reactor a gas to be purified and an oxygen-containing gas,
• a means for outletting a purified gas from the reactor,
• wherein the unit for sulfur separation and absorbent regeneration comprises a means for absorbent regeneration and a means for sulfur withdrawal from the unit for sulfur separation and absorbent regeneration,
• wherein the reactor and a composition of said catalyst are configured to provide a conversion of at least 99.99% of hydrogen sulfide and mercaptans into sulfur and disulfides, respectively, while at the same time achieving an absorption of water by an absorbent to a required degree of gas dehydration,
• wherein the means for absorbent regeneration provides for extraction of water from said absorbent with a later recycling of the absorbent into said desulfurization/demercaptanization/dehydration reactor.