Comparative Study on Microwave Co-pyrolysis Products of Low-Rank Coal under Circulating Gas and N2 Atmosphere

DOI

10.2991/icadme-15.2015.119How to use a DOI?

Keywords

Low-rank coal; Microwave co-pyrolysis; Products; Circulating gas; Nitrogen.

Abstract

Microwave pyrolysis is a new research method for deeply processing of low-rank coal. On basis of experiments, this paper conducted comparative study on microwave co-pyrolysis products of low-rank coal under circulating gas (CG) and N2 atmosphere, respectively. The composition and content of tar and bluecoke were analyzed by gas chromatography-mass spectrometry and fourier transform infrared spectrometer. The results indicated that compared with N2 atmosphere, the yield of liquid products (tar and pyrolysis water) obtained under CG atmosphere was higher than 8.0 wt.%, whereas the bluecoke yield was lower than 4.4 wt.%; The content of S element in the bluecoke obtained under CG atmosphere was 0.16 wt.% to meet Bluecoke Standard S-1 Grade, and the N element content was just 0.67 wt.%. Furthermore, the content of –OH C=C and –C O functional groups in the bluecoke were higher; The alkanes compounds content in tar obtained under CG atmosphere was 8.10 wt.% higher than that under N2 atmosphere, meanwhile, the aromatic hydrocarbons compounds content was 37.4 wt.% lower than that under N2 atmosphere.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

Download article (PDF)

TY  - CONF
AU  - J. Zhou
AU  - L. Wu
AU  - Z. Yang
AU  - X.F. Liu
AU  - Y.H. Song
AU  - X.C. Zhao
PY  - 2015/10
DA  - 2015/10
TI  - Comparative Study on Microwave Co-pyrolysis Products of Low-Rank Coal under Circulating Gas and N2 Atmosphere
BT  - Proceedings of the 5th International Conference on Advanced Design and Manufacturing Engineering
PB  - Atlantis Press
SP  - 589
EP  - 593
SN  - 2352-5401
UR  - https://doi.org/10.2991/icadme-15.2015.119
DO  - 10.2991/icadme-15.2015.119
ID  - Zhou2015/10
ER  -