马头电厂脱硝工程技术经济评价

发布时间：2018-03-26 05:14

本文选题：马头电厂　切入点：脱硝　出处：《华北电力大学》2014年硕士论文

【摘要】：在环保产业中，治理大气污染是重点，而火电厂排污治理又是重中之重。环保部2011年公布的《火电厂大气污染物排放标准》（二次征求意见稿）中制订的减排标准堪称世界最严。目前火电厂应用的脱硝手段有四种：燃烧改良NOx处理技术、选择性催化还原法（SCR）脱硝、非选择性催化还原法（SNCR）脱硝以及SNCR/SCR混合法。选择哪一种脱硝工艺才能使电厂在技术经济上达到最优是电厂面临的一个现实问题。本文介绍了国内外脱硝工程技术经济评价的研究现状，概述了马头电厂实施脱硝工程的基本条件，分析了可供马头电厂选择的四种脱硝工艺技术原理及特点。本文分析阐述了技术经济分析及评价的基本理论知识，并应用这些理论知识，，确定马头电厂脱硝工程的技术经济评价指标体系，并通过层次分析，为马头电厂脱硝工程的技术经济评价指标确定权重。在对体系中的各个指标进行分析的基础上，对四种脱硝技术进行了模糊综合评价。最后，通过对评价结果的分析，说明SCR工艺技术最适合马头电厂的脱硝工程。
[Abstract]:In the environmental protection industry, air pollution control is the key. The emission control of thermal power plant is the most important one. The emission reduction standard of atmospheric pollutant emission from thermal power plant published by the Ministry of Environmental Protection in 2011 (second draft for consultation) is the world's most stringent emission reduction standard. At present, the denitrification used in thermal power plants is regarded as the most stringent. There are four methods: improved combustion NOx treatment technology, Selective catalytic reduction method (SCR) denitrification, non-selective catalytic reduction method (NCR) denitrification and SNCR/SCR mixing method. It is a realistic problem for power plant to choose which denitrification process can make the power plant achieve the best technologically and economically. This paper introduces the present situation of technical and economic evaluation of denitrification engineering at home and abroad, and summarizes the basic conditions for the implementation of denitrification project in Matou Power Plant. The principle and characteristics of four denitrification technologies available for selection in Matou Power Plant are analyzed. The basic theoretical knowledge of technical and economic analysis and evaluation is analyzed and applied in this paper. The technical and economic evaluation index system of the denitrification project in Matou Power Plant is determined, and the weight of the technical and economic evaluation index of the denitrification project in the Maotou Power Plant is determined through the analytic hierarchy process. On the basis of the analysis of each index in the system, the technical and economic evaluation index of the denitrification project is determined. The fuzzy comprehensive evaluation of four denitrification technologies is carried out. Finally, through the analysis of the evaluation results, it is shown that the SCR technology is the most suitable for denitrification engineering in Matou Power Plant.
【学位授予单位】：华北电力大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：X773

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