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浙江大学学报(工学版)
浙江大学学报(工学版)
机械与能源工程     
燃煤电厂选择性催化还原脱硝系统运行成本
杨航, 郑成航, 金侃, 张军, 张涌新, 翁卫国,吴学成, 高翔
浙江大学 能源清洁利用国家重点实验室,浙江 杭州 310027
Analysis on operation cost of SCR system in coal-fired power plant
YANG Hang, ZHENG Cheng hang, JIN Kan, ZHANG Jun, ZHANG Yong xin, WENG Wei guo, WU Xue cheng, GAO Xiang
State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, China
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摘要：

针对燃煤电厂选择性催化还原（SCR）脱硝系统,提出基于费用效益分析方法的脱硝运行成本评估体系和计算模型,研究典型机组的SCR脱硝系统运行成本.结果表明,在机组年运行小时数为5 000 h,入口NOx质量浓度为400 mg/m3时（基准含氧量6%）,容量分别为300、600和1 000 MW机组的SCR脱硝系统运行成本分别为7.6～8.6、5.75～6.55和4.8～5.4元/(MW·h）；入口质量浓度从200 mg/m3分别增加至400和600 mg/m3时,总成本中还原剂成本增幅最大,分别为195.9%和391%；当达到超低排放标准限值时,300、600和1 000 MW机组的SCR脱硝系统运行成本相比达到新标准排放限值时分别增加约9.64%、9.68%和9.8%；机组年运行小时数从4 000 h增加至6 000 h时,300、600和1 000 MW机组的SCR脱硝系统运行成本分别降低约28%、26%和26.2%.
Abstract:
An operation cost assessment system and calculation model of selective catalytic reduction (SCR) system in coal-fired power plant was established based on cost-benefit analysis. The operation cost of SCR system in typical unit was investigated. Results show that the operation cost of SCR system in large capacity unit is lower than that in small capacity unit. When the annual operation hours are 5 000 h and NOx inlet concentration is 400 mg/m3 (the oxygen content of base condition is 6%)，the operation cost of SCR system in typical 300, 600 and 1 000 MW power unit are among 7.60~8.60, 5.75~6.55 and 4.80~5.40 yuan/MW·h, respectively. When the NOx inlet concentration increases from 200 mg/m3 to 400 mg/m3 and to 600 mg/m3, the reductant cost in the total operation cost has the largest increase, by 195.90% and 391.00%, respectively. When the emission is up to ultra-low emission standard, compared to the GB13223-2011 standard, the operation cost of 300, 600 and 1 000 MW increases by 9.64%, 9.68% and9.80%. When the annual service hours increase from 4 000 h to 6 000 h, the operation cost of 300, 600 and 1 000 MW decreases by 28.00%, 26.00% and 26.20%.
出版日期: 2017-03-06
CLC:  X324  
基金资助:

国家杰出青年科学基金资助项目(51125025) |浙江省重大科技专项计划资助项目(2014C03018)|中央高校基本科研资助项目（2014QNA4010）
通讯作者: 高翔,男,教授,博导. ORCID: 0000-0002-1732-2132     E-mail: xgao1@zju.edu.cn
作者简介: 杨航(1990—),男,博士生,从事燃煤电厂污染物控制系统运行方面等研究. ORCID: 0000-0002-0515-7010. E-mail: yanghang901004@zju.edu.cn
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杨航, 郑成航, 金侃, 张军, 张涌新, 翁卫国,吴学成, 高翔. 燃煤电厂选择性催化还原脱硝系统运行成本[J]. 浙江大学学报(工学版), 10.3785/j.issn.1008-973X.2017.02.019.

YANG Hang, ZHENG Cheng hang, JIN Kan, ZHANG Jun, ZHANG Yong xin, WENG Wei guo, WU Xue cheng, GAO Xiang. Analysis on operation cost of SCR system in coal-fired power plant. JOURNAL OF ZHEJIANG UNIVERSITY (ENGINEERING SCIENCE), 10.3785/j.issn.1008-973X.2017.02.019.

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