Numerical Study of the Effects of CO2 Addition in Single Coal Particle Gasification

Abstract Gasification appears to be the way of processing and utilizing coal cleanly. However, currently the main issue of coal utilization is CO 2 production that adversely impacts the environmental sustainability of this process. Some efforts have been made to control and reduce the CO 2 emission in the atmosphere, such as using CCS (Carbon Captured and Storage) or CCU (Carbon Captured and Utilization). As a part of those efforts, this work investigates the effect of utilizing CO 2 in the gasification process. Towards this aim, numerical simulations of single coal particle gasification are conducted. The benefits of adding CO 2 to the gasification process compared to that of air are examined thoroughly. It is found that H 2 , CO and CH 4 productions are increased with CO 2 addition thus indicating an improvement in syngas generation from the coal gasification.