Underground coal gasification (UCG) is a promising option for the future use of un-worked
coal. UCG permits coal to be gasified in situ within the coal seam, via a matrix of wells. The …

In this study, the impact of oxygen flow rate on the cavity of the gasification zone was
analyzed through two experiments using a coaxial hole model. The oxygen flow rate was …

Underground coal gasification (UCG) is the in-situ conversion of deep underground coal to
synthesis gas for heating, chemical manufacturing and power generation. UCG has been …

Underground coal gasification (UCG) is a process that produces combustible gas by the in-
situ gasification of coal seams. For a steady and efficient gasification project, the ignition of …

Thermal damage mechanisms and the characteristics of performance deterioration of a
repository host rock is critical for evaluating the potential of an underground coal gasification …

Underground coal gasification is an essential means of meeting the growing energy needs
of some countries. In this paper, a new numerical simulation method of thermal-force …

During the underground coal gasification (UCG) process, fracturing and cracks occur inside
the gasification zone and surrounding rocks as the underground coal cavity evolves …

Underground coal gasification (UCG) has been identified as an environmentally friendly
technique for in-situ gasification of deep unmineable coal seams. As coal is gasified, a cavity …

The technical feasibility of underground coal gasification (UCG) has been established
through many field trials and laboratory-scale experiments over the past decades. However …

Coal reaction in dry distillation zone, as an essential step in underground coal gasification
(UCG), is of great significance to be studied about its characteristics in a comprehensive …