泥炭阴燃过程气体排放特征分析

Smoldering wildfire in peatland is one of the largest combustion phenomena on Earth，producing large amounts of carbon emissions that can accelerate the climate change，and is responsible for cross-border haze events. In this work，small-scale experiments were conducted to investigate the effects of oxygen supply rate on the emission characteristics of carbon monoxide(CO)and carbon dioxide(CO₂)during the smoldering combustion of peat. Results showed that the emission rates of CO and CO₂ are higher in the pyrolysis period but lower in the oxidation period. As the airflow velocity increases from 8.5 mm/s to 28 mm/s，the emission factors of CO and CO₂ increase by 5 and 6 times，respectively. This study has important scientific guidance for understanding the emission characteristics of smoldering combustion and has positive practical significance for improving the monitoring and prediction of smoldering forest fire.