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This report presents an investigation on the combustion of single droplets comprised of heavy oil and oil mixtures blending diesel light oil (LO) and a heavy oil residue (HOR). The tests were conducted in a microgravity facility that offered 10s of free-fall time. Fine wire thermocouples supported the droplets, resulting in a measurement of droplet temperature history. Additional data were the droplet...
A method for the deconvolution of 13 C NMR spectra of coals has been developed by using coal-like model compounds and various lithotypes separated from Yallourn brown coal which is rich in various types of oxygen-functional groups. The spectrum of coal was resolved into 24 peaks which were classified into nine types of carbon-functional group. This analytical method can be applied to...
In order to develop a reaction simulator for purposes of direct coal liquefaction, a kinetic model for the initial stage of the reaction was developed for sub-bituminous Wandoan and Tanitoharum coals. The kinetic parameters in the model were determined by fitting the model to experimental data obtained by autoclave tests. Based on the model, a simulator for a preheater was proposed. The yields of...
A kinetic analysis of coal liquefaction in flow reactors of the 1t/d Process Supporting Unit (PSU) for the NEDOL Process is reported. The coal liquefaction section of the PSU consists of a preheater and three liquefaction reactors in series. Progress of coal liquefaction in PSU has been investigated, focussing mainly on the changes in coal derived insoluble components through the preheater and the...
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