煤直接液化中溶剂的作用和种类

FUNCTIONS AND KINDS OF SOLVENTS IN COAL DIREACT LIQUEFACTION

讨论了煤液化中溶剂的作用和种类． 煤液化中溶剂的作用为溶解溶胀作用、稀释分散煤粒以及对煤热裂解生成的自由基的保护作用． 并着重讨论了供氢溶剂的供氢作用和转移氢作用． 溶剂的种类分为工业和研究中常用的普通混合溶剂， 煤焦油、石油渣油等重质油溶剂和废塑料、废橡胶等废化学品溶剂． 初步分析了它们的供氢作用和传递转移活性氢作用．

This paper reviews the functions and kinds of solvent in coal liquefaction. It is founded that solvent have many functions such as disolving, swelling, dispersing and diluting coal particles and preventing the free radical from polymerizing. The paper mainly discusses hydrogen donor solvent which can provide and transfer active hydrogen; It can be classified as common solvent which is used for industry or research, heavy oil such as coal tar, residue and wasted plastics and rubbers which is meaningful for economizing resources and improving environment when they are coprocessed with coal.\;