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Links between extents of coal gasification and the amounts and compositions of mineral components in coals have been investigated. The influence of demineralisation and impregnation with various inorganic components on the pyrolysis and CO 2 -gasification behaviour of two coals have been examined at 0.1 and 1MPa. The effect of mineral matter on pyrolysis and gasification behaviour has also...
This paper reports on the first stage of a study attempting to develop laboratory scale tests for the reliable determination and eventual prediction, of the effect of coal properties on the performance of coals in air blown gasifiers. The pyrolysis and gasification behaviour of a suite of coals have been matched, using a high-pressure wire-mesh reactor (WMR), with those of maceral enriched samples...
The properties of chars derived from coals of a wide range of rank produced in wire-mesh (WMR) and entrained-flow (EFR) reactors were compared. The WMR was operated at atmospheric pressure of helium or nitrogen with heating rates of 2-5000 K s -1 , temperatures up to 1773 K and residence time of 2-30 s. The EFR was operated at 1273 K with a residence time of 1 s in nitrogen at atmospheric...
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