Distribution of Sulfur Forms in Low Temperature Pyrolysis of Coal

Abstract:

The distribution of sulfur forms in the products of low temperature pyrolysis of Carboniferous high sulfur coal from Northwest China was investigated. The typical method of Gray-King assay was used to carry out the low temperature pyrolysis experiments. GC-MS analysis was used to investigate the composition of sulfur compounds in the coal tar. The results show that sulfur mainly remained in the semi-coke and accounted for 80.97% of the total sulfur. Pyrites decomposed and transformed into sulfates and organic sulfur. 5 sulfur containing compounds were detected in the coal tar and they are dibenzothiophene, benzonaphthothiophene and their substituted homologs.

• Periodical: Advanced Materials Research (Volumes 512-515)
• Pages: 834-837
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.512-515.834
• Online since: May 2012
• Authors: Qiu Xiang Yao, Mei Li Du, Shui Li Wang, Jing Liu, Jian Li Yang, Hai Tao Shang
• Keywords: Distribution, Low Temperature Pyrolysis, Sulfur Forms, Thiophenes

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