Terry Wall

TL;DR: Oxyfuel combustion is one of the leading technologies considered for capturing CO2 from power plants with CCS as mentioned in this paper, which involves the process of burning the fuel with nearly pure oxygen instead of air.

TL;DR: The reactivity of four pulverised Australian coals were measured under simulated air and oxy-fuel (O 2 /N 2 ) and O 2 /CO 2 ) environments using a drop tube furnace (DTF) maintained at 1673 K and a thermogravimetric analyser (TGA) run under non-isothermal (heating) conditions at temperatures up to 1473 K.

TL;DR: In this article, the effect of operating pressure on coal reactions has been investigated and it has been shown that higher reactant pressure enhances coal combustion and gasification reaction rate, which can be understood by an adsorption-desorption mechanism.

TL;DR: In this article, a char morphology system based on the physical and optical characteristics known to influence the burning of pulverized coal is outlined, and the proportions of different pyrolysis char types produced by any coal are shown to depend on coal rank, petrographic composition, maceral fusibility, and possibly ash content and composition.

TL;DR: In this article, a technical review of all laboratory and pilot work to identify impacts of sulphur impurities from throughout the oxy-fuel process, from combustion, gas cleaning, compression to sequestration with removal and remedial options is presented.