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.

Effect of anthrecene oil, quinoline and liquid paraffin extraction on the swelling of Assam coal has been studied to find out the degree of cross-linking in the pretreated coals, and to assess the molecular effect of the these solvents in the solid mass of coal, on the flexibility of coal macromolecular aggregation and molecular dynamism. Effect of successive extractions using anthracene oil-quinoline-liquid paraffin sequence, on the extraction of volatilizable components i.e. volatile matter (VM) contents and removal of toxic mineral matter contents of Assam coal has been studied. A relation of C % and VM % in coal with extraction yields through this successive extraction of different coals has been suggested. About 50 - 76% of the total VM present in the original coal can be extracted by the successive solvent extractive disintegration of coal, which was more than that through pyrolysis of coal at 600°C. Recovery of VM renders the combustion of residual coal free of pollution. The solvent refin...

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

Studies on successive extraction of coal in coal derived solvents under ambient conditions to recover volatile matter (volatilizable components) from coal and to get partially devolatilized residual coal and solvent refined coal as clean and detoxified fuels

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

Citations

Studies on successive extraction of coal in coal derived solvents under ambient conditions to recover volatile matter (volatilizable components) from coal and to get partially devolatilized residual coal and solvent refined coal as clean and detoxified fuels

References

CHEMISTRY of coal utilization

Related Papers (5)

Effect of mineral extraction on the evolution of nitrogen functionalities during coal pyrolysis

Effects of low molecular compounds in coal on the catalytic upgrading of gaseous tar

Ultraviolet Spectrophotometric Determination of Total Pyridines and Quinolines in Low Temperature Coal-Tar Distillates

Desulfurization of Oxidized Indian Coals with Solvent Extraction and Alkali Treatment

Determination of coal reactivity during coprocessing using stable isotope mass spectrometry