煤组成对煤液化的影响

oal liquefaction technology is expected to achieve coal's high value-added use, but the basic theory and technology are not mature enough. In this paper, the mechanism of coal liquefaction is introduced briefly. Highlights are laid on the impacts of coal macerals and chemical compositions (organic and inorganic compositions) for coal liquefaction.Vitrinites and liptinites are active to be liquefied, while inertinites are more difficult to be liquefied; coal with high volatile and H / C is suitable for liquefaction. Lignittes with many side chains and low rank is easier to be liquefied than anthracite with dense aromatic structures. A high mineral content is not conducive for coal liquefaction, but the metal sulfide mineral is a common coal liquefaction catalyst. If its content is appropriate, it is beneficial for coal liquefaction.