| 摘要 |
<p>A method for underground gasification of coal or browncoal in an inclined coal seam (1), in which a substantially uniform gasification or combustion front is maintained by filling the cavity (5) generated by gasification of coal with a filler (6) so as to drive said front in an upward direction through the coal seam (1), the gases for maintaining the gasification being introduced through a first borehole (2) and the combustion gases being discharged through a second borehole (3), one of these boreholes being used for introducing the filler, one of said boreholes following the coal seam, preferably in a more or less horizontal direction and the other borehole being connected in the coal to the lower end (4) of the first borehole.</p> |
