This study reports the results from experimental and theoretical studies aimed at elucidating the effects of particle pore structure and process conditions on the ignition of coal and char particles. A novel reactor combining thermogravimetric analysis and video microscopy imaging (TGA/VMI) was used for our combustion studies. By allowing simultaneous observation of light emissions from igniting particles and measurement of sample reactivity from weight-loss data, the TGA/VMI reactor was very effective in detecting and characterizing particle ignitions. Investigations of ignition mechanism showed that the ignition of char particles typically occurs heterogeneously, while coal particles may ignite heterogeneously, homogeneously, or by a comb...
A better understanding of the influence of particle size on pyrolysis and char reactivity is of cruc...
he temperature-time histories of single char particles burning at temperatures above 1500 K have bee...
To realize large percentage biomass co-firing with coal in existing coal-fired boilers, the combusti...
Coal pyrolysis and combustion have been systematically investigated at high temperatures where exter...
The effect of process conditions on coal pyrolysis and char reactivity is systematically studied usi...
Under typical conditions of pulverized-coal combustion, which is characterized by fine particles hea...
The project will quantify the effect of the following pyrolysis conditions on the macropore structur...
We report the development of a novel experimental technique that combines video microscopy and therm...
A pulse ignition technique, whereby a small mass of fine coal or char particles is fed into a drop-t...
The project will quantify the effect of the following pyrolysis conditions on the macropore structur...
Under typical conditions of pulverized coal combustion, which is characterized by fines particles he...
Under typical conditions of pulverized-coal combustion, which is characterized by fine particles hea...
The project will quantify the effect of the following pyrolysis conditions on the macropore structur...
A systematic analysis of the structure of char particles produced from an Illinois #6 coal was carri...
Coal utilization involves two major stages: coal pyrolysis and char combustion. Figure 1.1 summarize...
A better understanding of the influence of particle size on pyrolysis and char reactivity is of cruc...
he temperature-time histories of single char particles burning at temperatures above 1500 K have bee...
To realize large percentage biomass co-firing with coal in existing coal-fired boilers, the combusti...
Coal pyrolysis and combustion have been systematically investigated at high temperatures where exter...
The effect of process conditions on coal pyrolysis and char reactivity is systematically studied usi...
Under typical conditions of pulverized-coal combustion, which is characterized by fine particles hea...
The project will quantify the effect of the following pyrolysis conditions on the macropore structur...
We report the development of a novel experimental technique that combines video microscopy and therm...
A pulse ignition technique, whereby a small mass of fine coal or char particles is fed into a drop-t...
The project will quantify the effect of the following pyrolysis conditions on the macropore structur...
Under typical conditions of pulverized coal combustion, which is characterized by fines particles he...
Under typical conditions of pulverized-coal combustion, which is characterized by fine particles hea...
The project will quantify the effect of the following pyrolysis conditions on the macropore structur...
A systematic analysis of the structure of char particles produced from an Illinois #6 coal was carri...
Coal utilization involves two major stages: coal pyrolysis and char combustion. Figure 1.1 summarize...
A better understanding of the influence of particle size on pyrolysis and char reactivity is of cruc...
he temperature-time histories of single char particles burning at temperatures above 1500 K have bee...
To realize large percentage biomass co-firing with coal in existing coal-fired boilers, the combusti...