Research status of direct coal liquefaction residues pyrolysis

Introduce the direct coal liquefaction residues pyrolysis from the aspects of pyrolysis character istics and pyrolysis mechanism.Summarize the best pyrolysis temperature.Residues act as a disincentive in the volatile release process during co-pyrolysis of coal and coal liquefaction residues.Based on the pyrolysis process of coal liquefaction residues,find that thermal fluidity and viscosity are the main limitations of amplification test during low temperature pyrolysis.Provide that the co-pyrolysis of residues and low rank coal can take full advantage of residues as hydrogen donor,meanwhile the catalytic reforming for intermediate products improve the oil yield and quality.The research expand the processing and utilization methods of residues,which is beneficial to high added-value utilization of direct coal liquefaction residues.