John F. Stubington

TL;DR: In this paper, coal particles with diameters of 3-11 mm were injected into a small, hot bed of sand fluidized by nitrogen and their evolution was followed by sampling the exit gas stream and subsequent analysis by gas chromatography, concluding that heat transfer is the main process controlling the volatilization time in fluidized bed combustors.

TL;DR: In this article, the effects of temperature, reactant partial pressure, and total pressure on the kinetics of the char−CO2 reaction under conditions where reactant diffusion through the pores of the reacting char has been shown to impact the overall conversion rate.

TL;DR: In this paper, spherical coal particles (5 to 12 mm diameter) from three Australian bituminous coals were devolatilized in an inert atmosphere of nitrogen at 850 °C, using a specially designed thermogravimetric rig based on an electrically heated stainless steel tubular reactor.

TL;DR: In this paper, the results of measurements of the char−CO2 reaction rate at high pressures (2.0 MPa) and high temperatures (up to 1673 K) using an entrained-flow reactor and also presents analyses of the morphology of the chars sampled during reaction.

TL;DR: In this paper, a single production cooktop burner was studied at three levels of thermal input, to determine the effects of load height on its efficiency and gaseous emissions, and a new measure of pollutant emission was proposed, to provide a means of assessing the "balance" between the requirements for lower emission rate and higher thermal efficiency.