An evaluation of in situ coal gasification

Study on proportioning of similar materials for overburden rock in underground gasification model experiment

“…Underground Coal Gasification (UCG) converts coal in situ (underground) into gaseous products by the same chemical reactions that occur in conventional gasification plants, commonly referred to as syngas or syngas [1][2][3][4][5][6][7][8][9][10][11][12][13][14]. UCG applies to Waste coal, non-minable coal seams, and deep coal seams in mined coal seams or traditional mining methods, and it can increase recoverable coal reserves [1,[7][8][9].…”

“…As a clean coal technology, UCG has been discussed and experimented for more than 100 years and has received worldwide attention and has been used in many pilot locations, including the former Soviet Union, the United States, Europe, Australia, China, Japan, India, etc. [4,6,7,15]. In recent years, a large number of theoretical and experimental studies have been conducted in the UCG process to study the effects of various gasification operating parameters [9,10,[15][16][17][18][19][20].…”