催化学报

催化学报 ›› 2015, Vol. 36 ›› Issue (7): 952-956.DOI: 10.1016/S1872-2067(15)60835-X

• 论文 • 上一篇    下一篇

催化湿式共氧化法同时去除硝基苯和苯酚

付冬梅a, 章飞芳b, 王联芝c, 杨帆a, 梁鑫淼a   

  1. a 中国科学院大连化学物理研究所, 辽宁大连116023;
    b 华东理工大学药学院, 上海200237;
    c 湖北民族学院化学与环境工程学院, 湖北恩施445000
  • 收稿日期:2015-03-22 修回日期:2015-04-10 出版日期:2015-06-12 发布日期:2015-07-30
  • 通讯作者: 付冬梅 电话: (0411)84379541; 传真: (0411)84379539; 电子信箱: fdm@dicp.ac.cn
  • 基金资助:

    国家自然科学基金(21107108和21267009); 中国科学院知识创新工程(KJCX2-YW-H04).

Simultaneous removal of nitrobenzene and phenol by homogenous catalytic wet air oxidation

Dongmei Fua, Feifang Zhangb, Lianzhi Wangc, Fan Yanga, Xinmiao Lianga   

  1. a Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, Liaoning, China;
    b School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China;
    c School of Chemical and Environmental Engineering, Hubei University for Nationalities, Enshi 445000, Hubei, China
  • Received:2015-03-22 Revised:2015-04-10 Online:2015-06-12 Published:2015-07-30
  • Supported by:

    This work was supported by the National Natural Science Foundation of China (21107108 and 21267009) and the Key Project of Knowledge Innovation Program of the Chinese Academy of Sciences (KJCX2-YW-H04).

PDF

671

被引次数

7

摘要：

在150-210 ℃, 1.0 MPa氧分压条件下, 对催化湿式共氧化法同时去除硝基苯和苯酚进行了研究. 与无催化剂共氧化降解苯酚和硝基苯相比, 均相催化剂的加入极大提高了苯酚和硝基苯的去除. 在所研究的过渡金属催化剂中, Cu2+, Co2+和Ni2+是有效的催化剂, 其中Cu2+的催化活性最好. 引发剂苯酚的连续加入模式对硝基苯的去除有很大的促进作用, 分批加入苯酚的促进作用更明显. 在200 ℃, 以Cu2+为催化剂, 苯酚分两次加入, 反应1 h, 硝基苯去除率达到95%. 这种催化共氧化体系以及分批进样引发剂的反应模式对有效去除环境中其它有机污染物提供了一种方法.

关键词: 催化湿式氧化, 共氧化, 均相催化剂, 高级氧化技术, 废水处理

Abstract:

The simultaneous wet air oxidation of nitrobenzene (NB) and phenol with homogenous catalyst was carried out in a stainless autoclave in a temperature range of 150-210 ℃ and at a partial oxygen pressure of 1.0 MPa. Compared with the non-catalytic co-oxidation of NB and phenol, the presence of the homogeneous catalyst greatly improved the conversion of both compounds. The transition metal ions Cu2+, Co2+ and Ni2+ were found to be effective catalysts, with Cu2+ affording the best results. How phenol was added to the autoclave was investigated and was found to affect the conversion of NB. Adding phenol in smaller portions can help to degrade NB more effectively. As an example, two additions of phenol with Cu2+ as the homogenous catalyst allowed 95% conversion of NB at 200 ℃ in 1 h. This catalytic co-oxidation method incorporating the addition of phenol initiator batches therefore provides an alternative and effective means of removing persistent organic pollutants from the environment.

Key words: Catalytic wet air oxidation, Co-oxidation, Homogenous catalyst, Advanced oxidation process, Wastewater treatment