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随着我国政府《关于汞的水俣公约》履约责任的推进,电力行业作为主要工业汞污染源之一,将进一步提升对燃煤烟气汞排放的约束。结合国内全面推进超低排放改造的行业背景,分析了国内外燃煤电厂汞减排技术研究和应用进展。针对超低改造后汞减排的需求,提出了燃煤机组递进减排技术选择策略:由单一的协同减排技术向协同减排技术、协同增强技术以及专项减排技术的综合技术体系过渡;立足国内完备的烟气环保设施基础,推动相对成本较低的卤素添加技术、新型脱硝催化剂技术以及抑制氧化汞还原技术等协同增强技术的应用;在专项减排技术领域,加大低成本、可再生、易回收吸附剂的工业化示范,为高汞地区燃煤机组递进减排提供多元化技术选择。
Abstract：With the promotion of the implementation responsibility of Minamata Convention on mercury, the power industry will further enhance the constraints on mercury emission from coal-fired plants. In this paper, combined with the background of comprehensively promoting the reformation of ultra-low emission, progress in research and application of mercury removal technology in coal-fired units at home and abroad are analyzed. According to the demand of mercury emission removal after ultra-low transformation, the paper puts forward the selection strategy of advanced emission reduction technologies for coal-fired units: transition from synergic mercury removal technology to comprehensive technical system of synergic emission reduction technology, synergic enhancement technology and special mercury removal technology;based on the existing air pollution control devices, promote relatively low-cost halogen injection technology, SCR catalyst improvement and inhibiting Hg2+ re-emission additives;promoting the industrial demonstration of low-cost, separable renewable mercury removal adsorbents, and provide diversified technologies for advanced emission reduction of coal-fired units in high mercury areas.
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基本信息:
中图分类号:X773
引用信息:
[1]王宏亮,许月阳,薛建明,等.燃煤机组烟气汞污染物全过程综合控制技术研究[J],2020,36(06):18-22.
基金信息:
国家能源投资集团科技创新基金项目“燃煤烟气重金属污染物磁响应高效捕集技术研究”(GJNY-20-109)
2020-07-30
2020
2020-08-25
2020
1