应用化学 ›› 2011, Vol. 28 ›› Issue (03): 364-366.DOI: 10.3724/SP.J.1095.2011.00351

• 研究简报 • 上一篇    

β-环糊精对燃煤焦油和烟气中环芳烃的清除作用

张海容*,陈金娥,郎建平   

  1. (忻州师范学院生化分析技术研究所 忻州 034000)
  • 收稿日期:2010-06-21 修回日期:2010-08-21 出版日期:2011-03-10 发布日期:2011-03-10
  • 通讯作者: 张海容,教授; Tel/Fax:0350-3048913; E-mail:hairong1015@163.com; 研究方向: 发光分析
  • 基金资助:
    山西省自然科学基金 (20051028) 资助项目

Scavenging Effect of β-Cyclodextrin on Polynuclear Aromatic Hydrocarbons of Coal Tar and Smog

ZHANG Hairong*, LANG Jianping, CHEN Jine   

  1. (Laboratory of Biochemical Analysis,Xinzhou Teacher′s University,Xinzhou 034000)
  • Received:2010-06-21 Revised:2010-08-21 Published:2011-03-10 Online:2011-03-10
  • Contact: hai rongZhang

摘要:

采用三维荧光法测定了7处产地煤样燃烧的焦油和烟气中多环芳烃(PAHs)的含量,焦油中PAHs含量为0.201~0.419 mg/g,烟气中PAHs含量为1.1~3.2 μg/g;测试了β-环糊精(β-CD)溶液对煤烟气中多环芳烃的清除作用,最高去除率可达65.6%。 结果表明:不同产地煤的烟气中PAHs含量不同, 煤焦油中PAHs浓度(mol/L)在10-5数量级,远高于烟气中的浓度(mol/L,10-7数量级)。 用β-CD去除不同产地煤燃烧烟气中多环芳烃的去除率不同。 所选7种煤平均清除率为38.4%。 β-CD溶液有希望成为煤烟气中多环芳烃的清除剂。

关键词: 三维荧光光谱法, 煤提取物, 多环芳烃, 菲, 清除率

Abstract:

The contents of polynuclear aromatic hydrocarbons(PAHs) in tar and smog of burned coal produced in 7 different areas have been measured using threedimensional fluorescent method. The range of PAHs in coal tar is from 0.201~0.419 mg/g and in coal smog is from 1.1~3.2 μg/g. Scavenging capacity for PAHs in coal smog by β-CD solution was determined to be 65.6%. The results showed that:PAHs contents of coal smog is different as the origin of coal varies. The PAHs content in coal tar is in the order of 10-5 mol/L, and more than that (in the order of 10-7 mol/L) in coal smog. As the producing area varies, the scavenging rates of PAHs in coal smog by β-CD solution is also different, the average scavenging rate of 7 kinds of selected coals was 38.4%. Hence, it is hopeful that the β-CD solution can be used as an effective removal agent for PAHs in coal smog.

Key words: Three-dimensional fluorescence, Coal extracts, PAHs, Phenanthrene, Scavenging rate

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