Online monitoring experiment of greenhouse-gas emissions from carbon-based fuel combustion
To enhance students' understanding of the"double carbon"concept and the clean-efficient utilization technology of coal resource,an online monitoring experiment of greenhouse-gas emissions from semi-coke and bituminous coal was designed.A combustion reaction system was established by simulating the coal-fired boiler condition,and the greenhouse gas emission characteristics of carbon-based fuel combustion was evaluated by using portable Fourier infrared gas analyzer.The results indi-cated that the initial and final release time of CH4 is different from that of CO2 and N2 O.The CO2 e-mission by per unit mass of semi-coke or bituminous coal is much higher than that of CH4 and N2 O.With the increase of combustion temperature,the CO2 emission first increased and then decreased,while the emissions of CH4 and N2 O gradually decreased.When the temperature is above 1000℃,the semi-coke releases more CO2 and less CH4,and the N2 O emission of both fuels are close to zero.Through this comprehensive experiment,teachers take the frontier knowledge of the discipline as the foundation to guide students' independent practical learning,which aims to cultivate their ability to an-alyze and solve problems and improve their comprehensive quality of engineering practice.
万方数据
维普
