Abstract
A binode thermal plasma is first applied to CO 2 reforming of CH 4 to investigate how to enlarge the process and lower energy consumption. Experimental study is conducted in two modes. One is to introduce feed gases (CH 4 and CO 2) only into discharge region between the first anode and the second anode as plasma-forming gas; the other is to introduce them not only into discharge region but also into the plasma jet from the exit of plasma generator. The experimental results show that, the former brings about higher conversion and selectivity but appreciably lower energy conversion efficiency due to its higher energy utilization, while the latter brings about higher energy conversion efficiency but somewhat lower conversion and selectivity due to its larger feeding of CH 4 and CO 2. Furthermore, during discharge in both modes, the oxidation on cathode and anode, or carbon deposition in plasma generator is not observed.
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