微波-炭还原法处理一氧化氮的研究

Studies on Microwave-Carbon Reduction Method for the Treatment of Nitric Oxide

报道了一种不需要催化剂而直接采用微波-炭还原技术处理-氧化氮（NO）的新方法．讨论了气体流量、反应温度、微波功率和施加微波时间对活性炭与一氧化氮发生还原反应的影响．比较了连续施加微波和间歇式施加微波方式下一氧化氮与活性炭发生化学反应转化为无公害的氮气（N2）和二氧化碳（CO2）的效率．研究结果表明，微波功率和反应器的类型及升温速率对一氧化氮与活性炭反应效率的影响较大．在连续施加微波时，一氧化氮与活性炭反应率可达98％以上．此外，还对一氧化氮与活性炭反应后的产物进行了表征．

A new method of treating nitric oxide (NO) was reported in this paper. The method adopted a microwave-carbon reduction technique without using any catalyst. The ef-fects of gas flow rate, reaction temperature, microwave power and microwave applying time on the reduction reaction between the activated carbon and NO were discussed. The reaction efficiency of transforming NO into N2 and CO2 in a way of applying microwave continuously was compared with that of applying microwave intermittently. The results indicated that the effects of microwave power, type of reactor and temperature-raising rate on reaction efficien-cy are significant. The reaction efficiency can be up to 98% when the microwave was applied continuously and the reaction products were examined.