燃煤电站多污染物一体化脱除研究进展

Research Progress of Simultaneous Removal of Multiple Pollutants in Coal-fired Power Plant

燃煤电站排放的SO_2、NO和Hg等污染物对生态环境造成严重破坏,严格控制燃煤电站的污染物排放意义重大。由于目前燃煤电站采用的污染物单独脱除技术存在占地面积大、运行费用高等问题,经济高效的多污染物一体化脱除技术成为污染物控制领域的研究热点。本研究对燃煤电站多污染物一体化脱除技术进行概述,对吸附剂法、气相氧化法、湿法氧化和气固催化氧化法的技术原理、研究现状、技术优缺点及今后的发展方向进行了分析总结。

SO2,NO and Hg pollutants released from coal-fired power plants have seriously damaged to ecological environment,so it is of great significance to strictly control the pollutants from coal-fired power plants.The separate removal technology of pollutants in coal-fired power plants has many shortcomings,such as large floor area and high operating costs.Therefore,the economic and efficient simultaneous removal technology of multiple pollutants has become a hot research topic.This review summarized the simultaneous removal technology of multi-pollutants.The technical principle,research status,technical advantages and disadvantages and development potential of adsorbent method,gas-phase oxidation,wet air oxidation and gas-solid catalytic oxidation method were summarized and analyzed.Furthermore,the key technology and development directions of these methods were pointed out.