煤与石油重油共处理协同效应的初步分析

Synergistic Effects and Preliminary Application of the Coal/oil Coprocessing

煤与石油重油共处理可同时对煤和重油进行加氢处理,并能提高煤的转化率和液化油的收率。本文分析了煤液化过程中溶剂的有效组分。多环芳烃含量较高的二次加工重油可作为部分煤液化溶剂,而芳香度较低的直馏重油不宜作为煤液化溶剂使用。在煤油共处理过程中,煤和重油之间呈现出促进重油改质和煤液化的协同效应。煤与重油之间的相互作用效果与重油的组成和性质相关,本文还探讨了改善煤与重油共处理效果的措施。

The coprocessing of coal and petroleum heavy oil can convert coal into liquids and simultaneously upgrade petroleum heavy oil, as well as improve the conversion of coal and the yield of liquid products. The efficient components of the solvent for the direct coal liquefaction are analyzed. The secondary operation heavy oils with high content of multi-ring aromatics can use as part of solvents for direct coal liquefaction. However, the straight- run heavy oils with low aromaticity are not suitable for using as solvents of direct coal liquefaction. During the coal/oil coprocessing, there is a synergetic eftect between coal and oil in promoting both heavy oil upgrading and coal liquefaction. The interaction effects between coal and oil correlate with the components and properties of heavy oil. And the measures of improving synergistic effects between coal and oil are analyzed.