二次反应对煤热解产品组成的影响

The Effects of Secondary Reaction on the Product Composition of Coal Pyrolysis

煤的热解是煤炭转化过程中的第一步，通过热解可以产生高质量的热解煤气及珍贵的液体产品。然而在实际过程中，对热解产品的组成有不同的要求。因此，研究煤热解二次反应对实际过程有着重要的指导意义。通过控制二次反应的条件，我们就可以控制热解产品的最终组成。但在这方面还需进行更深入的工作。本文对以前的研究者就二次反应的研究作了总结。

Pyrolysis of coal is the first step of all coal conversion processes.Gas from pyrolysis always has higher heating value than that from usual coal gasification.Mean while,tar and light oil can also be produced from pyrolysis.But in practical processes,there are always different requirements for the pyrolysis products.For this reason,research on secondary reactions of the primary pyrolysis products becomes very important.We can adjust the final pyrolysis product composition by the control of secondary reactions conditions for different processes.Works of former researchers are reviewed in this paper.