Carbochemistry

TL;DR: In this paper, the co-solvent effect of tetralin and ethanol on supercritical toluene extraction of coal has been investigated, and it was shown that tetralins increased the conversion and liquid yield of coal.

TL;DR: In this paper, the extraction of five Victorian brown coals with supercritical water in a semi-continuous reactor was investigated, and the extracts were separated into oils, asphaltenes and pre-asphaltene and these were studied by NMR spectroscopy combined with elemental, OH and molecular weight analyses.

TL;DR: In this article, the effects of dispersed catalysts on coal liquefaction under hydrogen pressure were studied using small autoclaves, where the catalysts were generated in situ by adding of elemental sulphur plus an oil-soluble carboxylic salt of either iron or molybdenum.

TL;DR: In this paper, the effect of mild alkylation and solvent swelling on the reactivity of coal was evaluated under both direct hydroliquefaction and coal/oil co-processing conditions, at both low and high severity reaction conditions.

TL;DR: In this article, the catalytic activity of cobalt molybdenum sulphide, cobalt oxide, iron sulfate, iron acetate dibasic and H 2 S during the reaction between supercritical CO and water, and during liquefaction of coal using supercritical water-water-solvent mixtures was studied.