低温等离子体处理柴油机尾气中氢氧化物的研究进展

PROGRESS EM REMOVAL OF NO_x FROM DIESEL ENGINE EXHAUST GAS BY NON-THERMAL PLASMA

分析了现行的催化还原方法对柴油机尾气中氮氧化物处理的困难,提出引入低温等离子体技术优化氮氧化物的氧化过程。分析了低温等离子体催化反应的机理,介绍了相关实验净化装置的结构,并对国内外在净化效果影响因素、副产物产生等方面的研究成果进行了讨论。

There are some bottlenecks to reduce the exhaust gas of diesel engines by employing the current chemical control methods. Based on the emergence of non-thermal plasma-chemical technique for gas treatment, it supplies a promising and effective alternative way for the removal of NOx. The reaction mechanism is analyzed, and the experimental setup is introduced. The relationships among the purification rate and many correlative factors, and the formation of by-products are discussed. Although some difficulties are still remained, this technique shows a good prospect.