Pyrolysis of simple coal model compounds containing aromatic carboxylic acids: Does decarboxylation lead to cross-linking?
- Oak Ridge National Lab., TN (United States)
Recently, a number of studies have shown that the evolution of CO{sub 2} from carboxylate groups is a key indicator of cross-linking reactions in pyrolysis and liquefaction of low rank coals. This result suggests that the thermal decarboxylation may occur by a pathway which initiates retrogressive reactions in the coal polymer. However, the chemistry of the thermal decomposition of aromatic carboxylic acids is not thoroughly understood. To provide insight into the thermal decarboxylation of aromatic carboxylic acids, and the role decarboxylation may play in coal pyrolysis, we have conducted a study of the pyrolysis of several bibenzyls containing aromatic carboxylic acids. The results of our pyrolysis study and the relevance of thermal decarboxylation on coal cross-linking reactions will be discussed.
- DOE Contract Number:
- AC05-84OR21400
- OSTI ID:
- 370429
- Report Number(s):
- CONF-960376--
- Country of Publication:
- United States
- Language:
- English
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