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Use of specific coal components to improve soluble coal product yield in a coal deashing process
Use of specific coal components to improve soluble coal product yield in a coal deashing process
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机译:在煤粉脱灰过程中使用特定的煤炭成分来提高可溶性煤炭产品的产量
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摘要
A process for improving the yield of soluble coal products separated from a residuum feed in a coal deashing process. In operation, an additive comprising (i) at least a portion of a distillate fraction preferably recovered from the coal liquefaction products from which the residuum feed is derived, (ii) a portion of recycled heavy soluble coal products, (iii) a portion of recycled light soluble coal products, or (iv) admixtures thereof is introduced in predetermined quantities into the residuum feed prior to entry into a separation zone maintained at elevated temperature and pressure to effect an improved separation of the soluble coal products from the insoluble coal products within the residuum feed.
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