초록 ▼

A process is provided for the production of hydrogen and sulphur from a gas containing hydrogen sulphide. Such a process comprises passing the gas through a cracking zone at a temperature of from about 850°C. to 1600°C., cooling the cracked gas to a temperature of from about 110°C. to 150°C., and se

A process is provided for the production of hydrogen and sulphur from a gas containing hydrogen sulphide. Such a process comprises passing the gas through a cracking zone at a temperature of from about 850°C. to 1600°C., cooling the cracked gas to a temperature of from about 110°C. to 150°C., and separating the condensed elemental sulphur. The uncracked hydrogen sulphide is separated and returned to the cracking zone; the remaining gas is withdrawn as hydrogen-rich gas.

대표청구항 ▼

A process for the production of hydrogen and sulphur by thermal cracking, said process comprising: (A) conducting a hydrogen sulphide-containing feed gas through a cracking zone maintained at a temperature of from about 850°C. to 1600°C., to thereby effect cracking of the hydrogen sulphide in said f

A process for the production of hydrogen and sulphur by thermal cracking, said process comprising: (A) conducting a hydrogen sulphide-containing feed gas through a cracking zone maintained at a temperature of from about 850°C. to 1600°C., to thereby effect cracking of the hydrogen sulphide in said feed gas; (B) cooling the cracked gas to temperatures of from about 110°to 150°C. to thereby condense elemental sulphur formed by the cracking; (C) separating said elemental sulfur condensed by said cooling from said cracked gas; (D) heating the cracked gas, after said separation of the condensed sulfur, to temperatures in the range of from 100°to 400°C.; (E) conducting the heated cracked gas over a hydrogenation catalyst; (F) washing the cracked gas with a basic and/or with a physically acting washing liquid in order to separate uncracked and reconverted hydrogen sulfide therefrom; (G) desorbing the separated hydrogen sulfide from said washing liquid and recycling the desorbed hydrogen sulfide to the cracking zone; and (H) drawing off the residual gas after separation of said elemental sulfur and said uncracked and reconverted hydrogen sulfide as hydrogen-rich gas.