Studies on resins from Makerwal coal.

Shahabuddin Kamalshah; Basit Hasan; M. S. A. Ahmed

Author(s)

Shahabuddin Kamalshah Central Laboratories, Pakistan Council of Scientific and Industrial Research (PCSIR), Karachi, West-Pakistan

Basit Hasan Central Laboratories, Pakistan Council of Scientific and Industrial Research (PCSIR), Karachi, West-Pakistan

M. S. A. Ahmed Central Laboratories, Pakistan Council of Scientific and Industrial Research (PCSIR), Karachi, West-Pakistan

Abstract

Makerwal coal is known to contain a high percentage of resins which are recoverable by solvent extraction. Alternative methods of recovery reported earlier show a wide degree of variation in the yield of resins and the quality of coal residue. An attempt has been made to evaluate these methods, by studying separately the behaviour of original coal, solvent extracted resins and the coal residue from solvent extraction, on super-heated steam treatment and carbonisation. It was found that on superheated steam treatment at 300-330 C 'these resins were only partially recoverable while on carbonisation extensive cracking of the resins was observed. The experimental data from the present work and critical review of the earlier work in this direction has clarified some of the hitherto reported anomalies of the behaviour of Makerwal coal.

Publication Details

Page(s) 212-215

DOI DOI not available

Published Journal: Pakistan Journal of Scientific and Industrial Research, Volume: 10, Issue: 3, Year: 1967

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