| Citation: | ZHANG H,WANG B J,WANG F.Study on flue gas pollutants from burning of main crop straws in Inner Mongolia[J].Journal of Environmental Engineering Technology，2022，12（4）：1015-1021 doi: 10.12153/j.issn.1674-991X.20210274
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In order to understand the emission of flue gas pollutants from open burning of crop straws in Inner Mongolia Autonomous Region, a self-designed biomass combustion system was used and typical crop (sunflower and corn) straws in Inner Mongolia were taken as the research objects to conduct indoor simulated combustion experiment. The emission characteristics of straw burning were studied by comparing the differences of emission factors of CO, CO2, NOx, CxHy and PM2.5 in different areas. The results showed that the emission factors of CO, CO2, NOx, CxHy and PM2.5 of sunflower straw were (344.71±66.36), (1 147.73±229.01), (3.20±0.62), (138.48±28.22) and (0.97±0.20) g/kg, respectively, and the emission factors of CO, CO2, NOx, CxHy and PM2.5 of corn straw were (319.69±52.27), (1 178.75±149.00), (1.29±0.04), (57.83±9.45) and (1.44±0.17) g/kg, respectively. The emission factors of PM2.5 of crop straws in different areas were (0.23±0.11) - (3.26±0.16) and (0.53±0.35) - (2.91±1.69) g/kg in flaming and smoldering, respectively; the emission factors of CO were (162.66±15.94) - (381.65±81.74) and (235.29±34.43) - (569.80±165.72) g/kg in flaming and smoldering, respectively; the emission factors of CO2 were (1 094.96±182.04) - (1 866.22±377.83) and (725.10±107.71) - (1 409.43±82.32) g/kg in flaming and smoldering, respectively. The emission factor of CO2 was higher in flaming than that of smoldering, and the emission factors of CO, NOx, CxHy and PM2.5 were higher in smoldering than those in flaming.
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