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MnO_x/α-Al_2O_3催化氧化燃煤烟气中Hg~0的试验研究

Published in 2009 by 乔少华;晏乃强;陈杰;瞿赞;贾金平
This paper was not found in any repository; the policy of its publisher is unknown or unclear.
This paper was not found in any repository; the policy of its publisher is unknown or unclear.

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Abstract

在模拟烟气中研究了MnOx/α-Al2O3催化剂对烟气零价汞(Hg0)的催化氧化效果,以及反应条件对Hg0氧化率的影响.结果表明,300℃时催化剂的活性最大,模拟烟气含有20mL/m3HCl时Hg0的氧化率达到91%.在8000～32000h-1空速范围内,Hg0氧化率保持在90%以上;空速提高到96000h-1时,氧化率开始下降,并与空速成反比.烟气中的SO2与HCl竞争催化剂上的活性位,对催化氧化反应有一定抑制,500mL/m3SO2使零价汞的氧化率下降约20%.此外,还对MnOx催化氧化零价汞的反应机制进行了探讨. ; 国家“863”项目(2007AA06Z340)