Interaction of low-grade metamorphic coals with methanol
- Russian Academy of Sciences, Kemerovo (Russian Federation). Institute of Coal and Coal Chemistry, Siberian Division
How conditions of alkylation of low-grade metamorphic coals with methanol in the presence of benzenesulfonic acid influence the yield of extractable matter was experimentally studied and relevant regression equations were obtained. It was shown that catalytic methylation considerably increases the yield of the extractable matter, as well as reducing the thermal stability of modified samples and alters the elemental composition of the samples and their extracts. A possible mechanism of coal methylation is discussed on the basis of regression models and experimental results. The interaction of the coal matter with the alkylating agent presumably involves the formation of the carbocation and its reaction with the coal organic matter. Both depolymerization reactions and the addition reactions of a portion of extractable compounds, the alkylating agent, and the catalyst with the high-molecular mass coal matrix take place.
- OSTI ID:
- 21037060
- Journal Information:
- Solid Fuel Chemistry (English Translation), Vol. 41, Issue 3; ISSN 0361-5219
- Country of Publication:
- United States
- Language:
- English
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