Study on absorbing agent-assisted microwave gas entrained bed for coal gasification process

A gas entrained flow experimental device of making water gas using microwave as a secondary heat source was established, and absorbing agent was used as the heat transfer medium. Under optimum conditions, the microwave energy consumption per unit mass of coal gasification was only 75.2 kJ · kg −1 , and the volume fraction of CO and H 2 in the water gas was 94.4%. The stable gasification temperatures or water gas compositions had nothing to do with the amounts of the coal for gasification. With the mass ratios of the coal to absorbing agent decreasing, the gasification temperatures were increased; the contents of CO 2 , H 2 and CH 4 in the product water gas were reduced evenly, also, the content of CO was increased; the change in the amplitude of variation was anthracite < bituminous coal < lig...