HYDROGEN PRODUCTION FROM AN INTEGRATED ELECTROLYSIS CELL AND HYDROCARBON GASIFICATION REACTOR

摘要

An integrated process for hydrogen gas production includes: a. operating a water electrolysis cell with an external source of electricity to produce oxygen and hydrogen; b. optionally operating an air separation unit to produce additional oxygen for the process; c. introducing a hydrocarbon feedstock into a membrane wall gasification reactor with an ash-forming material and steam, and oxygen from the electrolysis cell and, optionally, oxygen from the air separation unit to produce hot raw synthesis gas; d. passing the hot raw synthesis gas from the gasification reactor to a steam- generating heat exchanger to produce steam and a cooled raw synthesis gas; e. introducing the steam generated in the heat exchanger into a turbine to produce electricity to operate the electrolysis cell; and f. recovering the hydrogen gas from the water electrolysis cell and, optionally, subjecting the synthesis gas to a water-gas shift reaction to increase the hydrogen content and recovering the hydrogen.