CO-PRODUCTION OF POWER AND HYDROCARBONS

摘要

Disclosed is a process for co-producing power and hydrocarbons, the process including; in a wet gasification stage, gasifying coal to produce a combustion gas at elevated pressure comprising at least H2 and CO; enriching a first portion of the combustion gas with H2 to produce an H2-enriched gas; generating power from a second portion of the combustion gas; in a dry gasification stage, gasifying coal to produce a synthesis gas precursor at elevated pressure comprising at least H2 and CO; mixing at least a portion of the H2-enriched gas with the synthesis gas precursor to provide a synthesis gas for hydrocarbon synthesis; and synthesising hydrocarbons from the synthesis gas.