吴祖良,朱周彬,章旭明,郝晓东,叶静静,姚水良

• 1:浙江工商大学 环境科学与工程学院，浙江 杭州 310018

摘要(Abstract)：

采用一段式介质阻挡放电催化反应系统，对模拟柴油车发动机尾气中的碳氢化合物（正癸烷，C10）进行处理。研究了C10在不同贵金属催化剂作用下的去除差异性，探讨了催化剂负载量、C10初始浓度、反应温度、能量密度对等离子体贵金属催化去除C10的影响。结果表明：与单独等离子体或热催化相比，等离子体催化能够显著提高C10去除率，等离子体和催化的协同作用显著。Pt/Al₂O₃的催化效果优于Pd/Al₂O₃、Ag/Al₂O₃，其不仅转化率高，而且促进了CO氧化生成CO₂。增加催化剂负载量、能量密度和反应温度都有利于提高C10去除率和CO、CO₂选择性，实验中C10去除率可达91%，CO和CO₂总选择性最大为54.3%，而初始浓度的增加则不利于C10去除。

关键词(KeyWords)： 介质阻挡放电;贵金属催化剂;C10;去除率;CO_x选择性

Abstract:

Keywords:

基金项目(Foundation): 浙江省公益性研究项目（2017C33042）；国家自然科学基金（11575159）。

作者(Author): 吴祖良,朱周彬,章旭明,郝晓东,叶静静,姚水良

DOI: 10.3969/j.issn.1003-9015.2017.06.026

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