Gasification and Combustion Characteristics of Datong Coal in a Mixture of O2/CO2 and Recycled Flue Gas by Rapid Heating
A novel combustion technology for coal fired power plants has been developed by oxy-fuel combustion that uses gasification and combustion of pulverized coal in mainly CO2 gas flow. In this study, a high power laser beam was used to carry out experiments of rapid heating of crushed coal in a CO2-rich atmosphere with different O2 concentrations (<10％). The effects on generating CO and Hydrocarbons (HCs) have been discussed by changing laser power, O2 concentration and placing water droplets on the coal sample. The results of experiments show that coal weight reduction ratios in the CO2-rich atmosphere by the rapid heating were decreased by adding water of 30％ against the total weight. Generations of CO and HCs gases are mainly dependent on coal temperature and O2 concentration; however, those are also affected by placing water droplets for enhancing chemical reactions with H2O vapor.
Gasification and combustion Rapid heating Water droplets CO and HCs
Zhigang Li Yuichi Sugai Kyuro Sasaki Xiaoming Zhang Jiren Wang
Department of Earth Resources Engineering Kyushu University Fukuoka, Japan College of Resources and Environmental Engineering Liaoning Technical University Fuxin, China
国际会议
2011 International Conference on Future Environment and Energy(ICFEE 2011)(2011年未来环境与能源大会)
三亚
英文
142-146
2011-03-25（万方平台首次上网日期，不代表论文的发表时间）