催化消除NO_x的研究进展

Progress in Catalytic Abatement of Nitrogen Oxide

近几十年,关于NOx消除的研究越来越受到关注,总体发展趋势是研发更加有效的NOx催化转化技术,以满足越来越严格的NOx排放法规。主要针对汽车尾气净化和燃煤电厂烟道气脱硝所涉及的NOx催化转化技术取得的进展进行了综述,简要介绍了4种催化消除NOx的方法,包括NOx直接分解、CO还原消除NOx、NOx选择催化还原和NOx储存还原,并且对相关催化剂及所涉及的反应机理进行了论述。

Research in the field of NOx abatement has grown significantly in the past decades. In general, there has been a strong incentive to improve the performance of catalysts and to develop new catalysts in order to meet the stringent environmental regulations. The catalytic removal of NO in the exhausts from industrial and automobile sources is briefly discussed in this review, including mainly the NOx decomposition, NOx reduction by CO, selective catalytic reduction of NOx by NH3 and hydrocarbons. Here, the progresses in the various catalysts and the mechanism on NOx conversion are also discussed.