Comparative Study on Microwave Co-pyrolysis Products of Low-Rank Coal under Circulating Gas and N2 Atmosphere
- 10.2991/icadme-15.2015.119How to use a DOI?
- Low-rank coal; Microwave co-pyrolysis; Products; Circulating gas; Nitrogen.
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.
- © 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/).
Cite this article
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 -