Energy value of coal

Sulfolobus acidocaldarius and Other Bacteria: A Critique

Published in Donald L. Wise, Bioprocessing and Biotreatment of Coal, 2017

For the transformation to be commercially valuable, specific biological features are desirable. The process should be selective or limited. In particular, only covalent bonds connecting sulfur atoms to the coal matrix should be severed. Disruption of covalent bonds between carbons, carbon and oxygen, or carbon and hydrogen would reduce the energy value of coal. Furthermore, the process should be regulated or controlled. Such features may allow augmentation of the biological activity and, in turn, maximization of the desulfurization.

Methodology in early detection of conveyor belt fire in coal transportation

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Journal Information

Published in Energy Sources, Part A: Recovery, Utilization, and Environmental Effects, 2020

Santosh Kumar Ray, Asfar Mobin Khan, Niroj Kumar Mohalik, Debashish Mishra, Nikhil Kumar Varma, Jai Krishna Pandey, Pradeep Kumar Singh

These figures reveal two peaks, viz. endothermic and exothermic. The endothermic area (J/g) of samples illustrates the amount of moisture in the coal. The onset and end temperatures of any DSC curve reveal the reaction start point and end point. The onset and endset temperature of the endothermic peak of these samples vary from 48.5 to 55.1 ⁰C and 116.7 to 156.1 ⁰C, respectively, in the temperature range of 50 to 125 ⁰C. Similarly, the area of endothermic peak fluctuates between 44.8 and 87.77 J/g and this result is corroborating with the moisture content (proximate analysis) of coal as well as COT. The exothermic peaks give the initializing of the combustion reaction, end of the combustion reaction, and energy value of coal. The DSC results of coal samples are presented in Table 4.

Energy value of coal

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Sulfolobus acidocaldarius and Other Bacteria: A Critique

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