Paper Title:
Studies on the Extraction of Phenols from Coal Tar Produced in Multi-Generation System
  Abstract

Isolation of phenols from the middle oil fraction(170-230°C) of tar produced in the multi-cogeneration system has been investigated for the purpose of recovering valuable pure phenols, such as phenol, cresols, xylenol and ethyl-phenol. Phenolic compounds were separated from the middle oil by liquid-liquid extraction using alkali and sulfuric acid. The yield of phenolic fraction from the middle oil (170-230°C) is up to 37%, which is much higher compared with those of metallurgical coke plants. Chromatography-mass spectrometry was used to analyse phenolic compounds. The result shows that the phenol content is less than 2%, and main compounds are cresol(14%), xylenol(20%) . Phenols of the middle oil fraction(230-280°C) was also analysed, which main contain methyl naphthol(20%).

  Info
Periodical
Advanced Materials Research (Volumes 347-353)
Chapter
Chapter 1: Development and Utilization of Solar Energy
Edited by
Weiguo Pan, Jianxing Ren and Yongguang Li
Pages
673-677
DOI
10.4028/www.scientific.net/AMR.347-353.673
Citation
Z. J. Shi, M. X. Fang, C. G. Zhou, S. R. Wang, Z. Y. Luo, "Studies on the Extraction of Phenols from Coal Tar Produced in Multi-Generation System", Advanced Materials Research, Vols. 347-353, pp. 673-677, 2012
Online since
October 2011
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Price
$32.00
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