A power cycle of natural gas decarbonization and dual fuel cells with inherent 100% carbon capture

摘要

An integrated natural gas decarbonisation and dual fuel cells power cycle (NGDDFC) was evaluated. The hydrogen and solid carbon produced in the natural gas decarbonisation process are fed to hydrogen and carbon fuel cells respectively. A fraction of the produced hydrogen is combusted to supply the heat required for natural gas decarbonisation. A pure carbon dioxide stream is produced from the carbon fuel cell, suitable for sequestration. The power cycle shows an efficiency of about 61% with near 100% carbon capture, 15 to 20% points higher than natural gas combined cycle (NGCC).