PROCESS FOR PRODUCING POWER FROM A SOUR GAS

摘要

A process for producing power from a sour gas comprising natural gas and hydrogen sulphide, the process comprising the steps of: (a) combusting the sour gas comprising natural gas and H2S in a combustion-heat recovery device using an excess amount of a oxygen containing gas, resulting in a hot effluent gas comprising carbon dioxide and sulfur dioxide; (b) sending at least part of the hot effluent gas to a heat recovery steam generator to generate steam at least partly used to generate power and a cooled gas effluent comprising C02 and S02; and (c) leading at least part of the cooled gas effluent comprising C02 and S02 to a sulphuric acid unit to produce sulphuric acid, steam and a cleaned flue gas stream.