REACTIVITY OF ASPHALTENES IN DIRECT COAL LIQUEFACTION.

W. Steedman, W. Kemp, D. A. Scott, M. A. Thomson

Research output: Contribution to conferencePaper

Abstract

Analytical data for four asphaltenes isolated from different stages of a direct coal liquefaction process are reported. Long contact times under hydrocracking conditions produce asphaltenes of lower H:C ratio, lower heteroatom content and higher molecular weight than the initial extract asphaltene. These changes are reflected in a depressed reactivity to further hydroliquefaction.

Original languageEnglish
Publication statusPublished - 1985

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