煤炭地下气化虽然受到地下水,煤层上部和下部的岩石以及煤的性质,成份等因素的影响,往往很难控制;有些技术目前还没有完全过关,但当英国著名化学家拉姆赛在本世纪初首先提出煤炭地下气化的设想以来,工业发达的国家都进行了大最的研究实验,从已经取得的成功经验来看,这一新技术具有很大的优越性,展示了煤炭工业发展的美好前景。厚度极薄,埋藏很深以及构造复杂的煤层一般方法是难以开采 Although underground coal gasification is affected by groundwater, the upper and lower coal seams and the nature and composition of coal, it is often difficult to control; some technologies are not yet fully cleared, but when the famous British chemist Ramsay was in this century At the very beginning, the concept of underground coal gasification was put forward. The industrially advanced countries have carried out the most extensive research experiments. From the successful experience that has been achieved, this new technology has great advantages, demonstrating the development of the coal industry. Good prospects. Very thin, deep buried and complex coal seams are generally difficult to mine