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UPDATED 1 Sept: The EI library in London is temporarily closed to the public, as a precautionary measure in light of the ongoing COVID-19 situation. The Knowledge Service will still be answering email queries via email , or via live chats during working hours (09:15-17:00 GMT). Our e-library is always open for members here: eLibrary , for full-text access to over 200 e-books and millions of articles. Thank you for your patience.
Evaluation of macromolecular structure of a brown coal by means of oxidative degeneration in aqueous phase. J. Hayashi et al. Energy and Fuels, January-February 1999, 13(1), 69--76.
Studies of brown coal oxidation at 85 C are reported. Analysis of the products shows that aromatic carbon is selectively oxidized into carboxyls while aliphatic carbon is largely unaffected. Results suggest that oxidation converts aromatic carbons bonded to bridges into peripheral carboxyl groups, and converts other aromatic carbons into non-aromatic acids or CO2. The oxidation mechanism is discussed and the general chemistry is reviewed using chemical equations. The data obtained from the oxidation experiments is used to elucidate the chemical structure of compounds present in the original coal. 27 refs.
Abstract details
Journal title: Energy and Fuels
Subjects: Chemical and petrochemical, Lignite, Coal, Solid fossil fuels and derived products
