The Influence of Feed Particle Size on Pyrolysis Characteristics of Lignite

摘要

The influence of feed particle size on the pyrolysis products, pyrolysis time, pyrolysis energy consumption and the percentage of dust content in volatile product was investigated in the fixed bed reactor. The results showed that with feed particle size increase, pyrolysis time and the percentage of dust content in volatile product were decreased, and pyrolysis energy consumption was changed a little. When the particle size was in the range of 20-30mm, the escape resistance of volatile product in lignite pyrolysis process was smaller, secondary reaction and carbon deposition probability were smaller, and the pyrolysis was more suitable.