燃气轮机脱硝技术现状及发展趋势
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摘要
随着燃气轮机的快速发展及其装机总量的不断提升,燃气轮机NO_x排放控制技术受到越来越广泛的关注。汇总分析了国内外NO_x排放标准以及主要的NO_x控制技术。选择性催化还原(SCR)技术是应用最广泛的尾部烟气脱硝技术,但因燃气轮机的烟气NO_x含量低且氧含量高,余热锅炉空间结构狭窄等特点,传统SCR催化剂难以直接应用。详细介绍了燃气机组SCR脱硝催化剂应用现状和国内外相关研究进展,研究发现低温活性和抗水性是燃机脱硝催化剂的重要研究方向。
With the rapid development and the continuous increase of installed capacity of gas turbines, NO_x emission control technology of gas turbines has drawn more and more attention. The domestic and overseas NO_x emission standards and the main NO_x control technologies were summarized here. Selective catalytic reduction(SCR) technology was the most widely used denitrification technology, however, due to the characteristics such as low NO_x concentration, high oxygen content and the narrow space structure of the waste heat boiler, the traditional SCR catalyst was difficult to apply directly. The current application situation and relevant domestic and foreign research progress of SCR denitrification catalyst for gas turbine sets were introduced in details in this paper, and Low temperature activity and water resistance were considered to be important research directions.
With the rapid development and the continuous increase of installed capacity of gas turbines, NO_x emission control technology of gas turbines has drawn more and more attention. The domestic and overseas NO_x emission standards and the main NO_x control technologies were summarized here. Selective catalytic reduction(SCR) technology was the most widely used denitrification technology, however, due to the characteristics such as low NO_x concentration, high oxygen content and the narrow space structure of the waste heat boiler, the traditional SCR catalyst was difficult to apply directly. The current application situation and relevant domestic and foreign research progress of SCR denitrification catalyst for gas turbine sets were introduced in details in this paper, and Low temperature activity and water resistance were considered to be important research directions.
引文
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[13] Jiang H, Zhou J, Wang C, et al. Effect of Co-solvent and Temperature on the Structures and Properties of Cu-MOF-74 in low-temperature NH3-SCR[J]. Industrial & Engineering Chemistry Research, 2017, 56(13): 3542-3550.
[14] 马万军,李军,徐玉华,等.燃气轮机用铁基硫酸盐催化剂制备及应用试验[J].中国科技博览, 2015(29):24-25.
[15] Qi G, Yang R T. Low-temperature SCR of NO with NH3, over noble metal promoted Fe-ZSM-5 catalysts [J]. Catalysis Letters, 2005, 100(3/4):243-246.
[16] Du X, Gao X, Fu Y, et al. The co-effect of Sb and Nb on the SCR performance of the V2O5/TiO2 catalyst [J]. Journal of Colloid & Interface Science, 2012, 368(1):406.
[17] 王志民, 张延东, 李慧远,等. 用于低温条件下的烟气脱硝催化剂及其制备方法: CN105148904A[P]. 2015.
[18] 史红华. 一种脱硝催化剂: CN 104148055A[P]. 2014.
[2] 中国环境科学研究院. GB 13223—2011火电厂大气污染物排放标准[M].北京:中国环境科学出版社,2012.
[3] U. S. Environmental Protection Agency. New Source Performance Standard[S]. 2012.
[4] 黄素华,苏保兴,华宇东,等.燃气轮机NOx排放控制技术[J].中国电力,2012,45(6):100-103.
[5] Wei M, Sa N T, Turkson R F, et al. Water injection for higher engine performance and lower emissions[J]. Journal of the Energy Institute, 2016, 90(2):285-299.
[6] 周国兴,黄红艳,周晖.PG9171E燃气轮机低氮燃烧系统改造[J].发电设备,2013, 27(5):338-342.
[7] 石晓燕,刘福东,单文坡,等. Fe-ZSM-5催化剂上NH3-SCR净化NOx研究[C]//中国化学会第28届学术年会第2分会场摘要集,2012.
[8] Long R Q, Yang R T, Chang R. Low temperature selective catalytic reduction (SCR) of NO with NH3 over Fe-Mn based catalysts[J]. Chemical Communications, 2002, 5(5):452-453.
[9] 周金华,靳江波,马德海.SCR脱硝技术在燃气—蒸汽联合循环发电机组中的应用[J].应用能源技术,2017(4):22-25.
[10] 黄妍.新型锰基钒基低温选择性催化还原NO催化剂研究[D].湘潭:湘潭大学,2008.
[11] Qiao J, Wang N, Wang Z, et al. Porous bimetallic Mn2Co1Ox catalysts prepared by a one-step combustion method for the low temperature selective catalytic reduction of NOx with NH3[J]. Catalysis Communications, 2015, 72:111-115.
[12] Min K, Park E D, Ji M K, et al. Cu-Mn mixed oxides for low temperature NO reduction with NH3[J]. Catalysis Today, 2006, 111(3/4):236-241.
[13] Jiang H, Zhou J, Wang C, et al. Effect of Co-solvent and Temperature on the Structures and Properties of Cu-MOF-74 in low-temperature NH3-SCR[J]. Industrial & Engineering Chemistry Research, 2017, 56(13): 3542-3550.
[14] 马万军,李军,徐玉华,等.燃气轮机用铁基硫酸盐催化剂制备及应用试验[J].中国科技博览, 2015(29):24-25.
[15] Qi G, Yang R T. Low-temperature SCR of NO with NH3, over noble metal promoted Fe-ZSM-5 catalysts [J]. Catalysis Letters, 2005, 100(3/4):243-246.
[16] Du X, Gao X, Fu Y, et al. The co-effect of Sb and Nb on the SCR performance of the V2O5/TiO2 catalyst [J]. Journal of Colloid & Interface Science, 2012, 368(1):406.
[17] 王志民, 张延东, 李慧远,等. 用于低温条件下的烟气脱硝催化剂及其制备方法: CN105148904A[P]. 2015.
[18] 史红华. 一种脱硝催化剂: CN 104148055A[P]. 2014.