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改性分子筛净化气相中的HCN

贾 锐 宁 平 王学谦 王郎郎 施 勇 马懿星

贾 锐, 宁 平, 王学谦, 王郎郎, 施 勇, 马懿星. 改性分子筛净化气相中的HCN[J]. 环境科学研究, 2014, 27(10): 1199-1204.
引用本文: 贾 锐, 宁 平, 王学谦, 王郎郎, 施 勇, 马懿星. 改性分子筛净化气相中的HCN[J]. 环境科学研究, 2014, 27(10): 1199-1204.
JIA Rui, NING Ping, WANG Xue-qian, WANG Lang-lang, SHI Yong, MA Yi-xing. Removal of HCN by Modified Molecular Sieve in the Gas Phase[J]. Research of Environmental Sciences, 2014, 27(10): 1199-1204.
Citation: JIA Rui, NING Ping, WANG Xue-qian, WANG Lang-lang, SHI Yong, MA Yi-xing. Removal of HCN by Modified Molecular Sieve in the Gas Phase[J]. Research of Environmental Sciences, 2014, 27(10): 1199-1204.

改性分子筛净化气相中的HCN

基金项目: 国家高技术研究发展计划(863)项目(2012AA062504);国家自然科学基金项目(U1137603,51368026)

Removal of HCN by Modified Molecular Sieve in the Gas Phase

  • 摘要: 以浸渍法制备催化氧化HCN所需催化剂,分别以Ce3+〔Ce(NO3)3〕、Fe3+〔Fe(NO3)3〕、Cu2+〔Cu(NO3)2〕、La2+〔La(NO3)2〕为活性组分,以Hβ、HY、5A、ZSM5分子筛作为载体,进行催化剂的优选. 以恒温管式反应器作为反应装置,在250 ℃以下,考察空速、反应温度、φ(O2)对HCN催化氧化过程的影响以及NOx的生成率. 结果表明:以0.1 mol/L Cu(NO3)2溶液浸渍Hβ分子筛,于300 ℃焙烧所得催化剂Cu/Hβ,在HCN催化氧化过程中具有良好的性能. 在空速低于6 000 h-1、反应温度高于100 ℃时,Cu/Hβ催化剂对HCN的去除率高于95%;反应温度高于200 ℃时,HCN去除率接近100%. 在φ(O2)由1%增至5%时,HCN去除率高于95%;反应温度低于200 ℃且φ(O2)小于3%时,NOx生成率低于5%. 表明铜基改性分子筛催化氧化脱除气相HCN方法所需反应温度低于200 ℃,受φ(O2)影响小,具有节能、二次污染小的特点.

     

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出版历程
  • 收稿日期:  2014-01-07
  • 修回日期:  2014-06-17
  • 刊出日期:  2014-10-25

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