CHEMICAL LOOPING REMOVAL OF VENTILATION AIR METHANE

摘要

A method of removing ventilation air methane (VAM) from ventilation air in coal mines using a chemical looping process to move metal or metal oxide particles between reactors such as a hydrogen generator (5) and a regenerator (7) to alternatively reduce and oxidise the particles such that VAM introduced into a combustor (6) provided with hydrogen from the hydrogen generator (5) can be processed in the regenerator (7) to produce air plus water plus carbon dioxide.;Other variations involve the use of three reactors in the chemical looping process.