| Abstract 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. |
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1997, Vol. 14 
