Abstract
The gliding arc plasma is an effective way to convert CO2 into value-added products. In this paper, the promotion of CO2 conversion by the airflow field control and electromagnetic field control of gliding arc is studied. Firstly, the self-electromagnetic field control of gliding arc is studied through the change of current level or electrode spacing. When increasing the current level or electrode spacing, a better conversion effect can be achieved under high flow rate. In addition, through the introduction of external magnetic field, the processing capacity of gliding arc is further improved under the effect of Lorentz force. Based on the multi-dimensional analysis of airflow field control and magnetic field control, it was found that only under the airflow field control plasma reactor, the conversion effect under 3.3 mm electrode spacing and 5 L min−1 flow rate reached the best, and the corresponding conversion rate and energy efficiency were 13.04% and 26.90%, respectively.
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