Carbochemistry

About: Carbochemistry is a research topic. Over the lifetime, 1010 publications have been published within this topic receiving 16626 citations.

Promising applications of coals from the Moscow Basin

Abstract: The results of an analysis of the current state of the Moscow Coal Basin and the development of science and technology for the multiple use and conversion of coal into refined energy carriers, products, and materials with new consumer properties are presented. It is demonstrated that a number of processes and facilities based on the coals and overburden rocks of the basin have been prepared for technical implementation, namely: the generation of heat and power at plants with in-cycle coal gasification; the fluidized-bed combustion of coal in low-power boiler units (50–60 MW); the manufacture of ballast-free humic plant growth stimulators and coagulants for the purification of wastewater and drinking water; and the use of coals and coal mining and benefication wastes as catalytic additives in the process of hydrogenation.

Gas chromatographic and ir spectral studies of the products obtained from extractive disintegration of coal

Abstract: Assam coal was extracted in anthracene oil, in quinoline and in liquid paraffin. The gases evolved during the extraction/reaction of Assam coal in anthracene oil and in liquid paraffin, were analyzed using a gas chromatograph. The IR spectra of residual coals were compared with the IR spectrum of original Assam coal. An increase in absorption at 710 cm−1, decrease in 2940-2860 cm−1 and increase in nitrogen contents of residual coal was observed in the residual coal obtained from the extractive disintegration.

Investigation of low-rank coal hydropyrolysis

Abstract: Laboratory microscale studies have demonstrated that the coal pyrolysis in a hydrogen atmosphere gave higher degree of devolatilization in low-rank coals than pyrolysis in an inert atmosphere. In hydrogen atmosphere two distinct steps in coal devolatilization were observed as shown by the double peak of the devolatilization rate. Only one step was observed under nitrogen atmosphere. In a comparison of kinetic parameters, a high reaction order and a low activation energy were also obtained in the coal hydropyrolysis. Application of data and observations from this study could lead to a better understanding of chemical and physical changes during the coal hydropyrolysis and alternative coal conversion routes. (JMT)