Nowadays, hydrogen is gaining attention as one of the green energy alternatives within
transition to a zero-emission economy. Increasing demand for hydrogen and its production …

The underground coal gasification (UCG) technology converts coal into product gas and
provides the option of environmentally and economically attractive coal mining. Obtained …

Underground coal gasification is a promising technology for low carbon utilization of coal,
while the importance of influencing factors for UCG performance is rarely evaluated …

Underground coal gasification (UCG) is an in-situ gasification technology where the
controlled retreating injection point (CRIP) method is usually adopted to optimize the cavity …

In this paper, UCG simulation experiments were carried out on selected coal samples to
study the effects of the gasification agent ratio on the product gas composition and calorific …

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 …

The underground coal gasification (UCG) process represents a modern and effective coal
mining technology that enables coal energy extraction through thermic decomposition. The …

Injection of liquid CO 2 (LCO 2) into coal reservoirs is an extremely effective way to enhance
coalbed methane recovery and storage. This study aimed to investigate the changes in …

The permeability evolution for coal seam roof overburden subjected to high temperature
plays a significant role in efficient, clean, and safe production of underground coal …

Using carbon dioxide as a gasification agent for underground coal gasification (UCG) can
not only reduce carbon dioxide emissions but is also expected to lead to a new natural gas …