207 熱プラズマによるラジカル生成と燃焼排ガス中のNOx除去(GS-7 エンジンシステム(2))

概要

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A technique for removing the NOx contained in combustion exhaust gas has been developed by using radicals produced in the mixing arc plasma. By feeding the gas mixture (Ar+NH_3),(Ar+H_2) and (Ar+ Diesel oil) into arc plasma torch, ammonia, hydrogen and Diesel oil radicals such as NH_2,NH,HC,N,H are produced, and these radicals are mixed in a reactor with the simulated exhaust gas (N_2+NO),(Air+NO). The NO decreases as a result of the formation of the innocuous products N_2 and H_2O when O_2 is not contained in the gas. Under present experimental conditions, the thermal De-NOx process and the oxidation of ammonia, hydrogen and Diesel oil are not expected. In the case of the gas. (Air+NO), NOx increase with increasing input power to plasma. The effects of input power to plasma, molar ratio NH_3/NO, H_2/NO and Diesel oil/NO, cathode length and gas flow rate on the NOx removal rate are investigated experimentally.
一般社団法人日本機械学会の論文
2001-03-16