Co-combustion characteristics and blending optimization of tobacco stem and high-sulfur bituminous coal based on thermogravimetric and mass spectrometry analyses.
Despite much research on co-combustion of tobacco stem and high-sulfur coal, their blending optimization has not been effectively found. This study investigated the combustion profiles of tobacco stem, high-sulfur bituminous coal and their blends by thermogravimetric analysis. Ignition and burnout performances, heat release performances, and gaseous pollutant emissions were also studied by thermogravimetric and mass spectrometry analyses. The results indicated that combustion of tobacco stem was more complicated than that of high-sulfur bituminous coal, mainly shown as fixed carbon in it was divided into two portions with one early burning and the other delay burning. Ignition and burnout performances, heat release performances, and gaseous pollutant emissions of the blends present variable trends with the increase of tobacco stem content. Taking into account the above three factors, a blending ratio of 0–20% tobacco stem content is conservatively proposed as optimum amount for blending.
Department of Energy Power & Mechanical Engineering, North China Electric Power University, Beijing 102206, PR China. myzkh2@126.com
Kaihua
K
Zhang
Kai
K
Zhang
Yan
Y
Cao
Wei-ping
WP
Pan
D003031:Coal / Q000032:analysis*; D003246:Conservation of Energy Resources / Q000379:methods*; D017745:Incineration; D013058:Mass Spectrometry; D035261:Plant Components, Aerial / Q000737:chemistry*; D012037:Refuse Disposal / Q000379:methods*; D013455:Sulfur / Q000737:chemistry*; D013818:Thermogravimetry; D014026:Nicotiana / Q000737:chemistry*
D003031:Coal; D013455:Sulfur