| 摘要 |
Aqueous effluent liquors, for example those obtained from the fixed bed gasification of coal with steam and oxygen, may be purified by subjecting said liquor, maintained at elevated pressure, to flash evaporation thereby to produce a vapor product and a liquid residue. The vapor product, comprising steam, may be used as a gasifying agent in, for example, the fixed bed gasification process. A first portion of the liquid residue is subjected to incineration and a second portion is recycled back to the flash evaporation stage. |
