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煤的气化是指煤在氧化区燃烧,还原区还原,经干燥区干燥后形成的可燃组分地下煤气。这种煤气具有热值高、生产成本低的优势,具有很好的经济效益,是煤炭开采方式的根本性变革。
Coal gasification refers to the combustion of coal in the oxidation zone, the reduction zone reduction, the drying zone formed after drying combustible components of underground gas. This gas has the advantages of high calorific value and low production cost, has good economic benefits and is a fundamental change of the coal mining method.