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AssigneeLinde Aktiengesellschaft
InventorsMartin LANG, Alexander MAIER, Florian ETTNER
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A method and device for the material use of an off-gas which is rich in carbon monoxide and contains hydrocarbons as well as hydrogenatable sulfur compounds, wherein a sulfur-free reformer feed is formed using the off-gas and is subsequently converted by steam reforming into a hydrogen-containing synthesis gas. According to the invention, the off-gas which is rich in carbon monoxide and contains hydrocarbons as well as hydrogenatable sulfur compounds is heated and subjected to hydrolysis at a temperature between 150 and 250° C., preferably between 150 and 190° C., in order to convert the hydrogenatable sulfur compounds with catalytic support into hydrogen sulfide, and to obtain an off-gas which is free of hydrogenatable sulfur compounds and which is subsequently desulfurized over a fixed bed containing zinc oxide.
A method for the material use of an off-gas which is rich in carbon monoxide and contains hydrocarbons as well as hydrogenatable sulfur compounds, wherein a sulfur-free reformer feed is formed using the off-gas and subsequently converted by steam reforming into a hydrogen-containing synthesis gas, wherein the off-gas which is rich in carbon monoxide and contains hydrocarbons as well as hydrogenatable sulfur compounds is heated and subjected to hydrolysis at a temperature between 150 and 250° C., preferably between 150 and 190° C., in order to convert the hydrogenatable sulfur compounds with catalytic support into hydrogen sulfide, and to obtain an off-gas which is free of hydrogenatable sulfur compounds and which is subsequently desulfurized over a fixed bed containing zinc oxide.
A device for the material use of an off-gas which is rich in carbon monoxide and contains hydrocarbons as well as hydrogenatable sulfur compounds, comprising a treatment device for forming a sulfur-free reformer feed using the off-gas and a steam reformer, in which the sulfur-free reformer feed can be converted by steam reforming into a hydrogen-containing synthesis gas, wherein the treatment device comprises a first heating device, a hydrolyzer and a fixed bed containing zinc oxide, which are arranged in such a way that they can be flowed through in series by the off-gas in order to heat the off-gas to a temperature between 150 and 250° C., preferably between 150 and 190° C., and to subsequently subject it to hydrolysis in which an off-gas which is free of hydrogenatable sulfur compounds is obtained and then desulfurized over the fixed bed containing zinc oxide.
Dependencies are inferred from the claim text.