燃煤锅炉固态还原剂选择性非催化还原法脱硝  

Powder Selective Non-Catalytic Reduction for Denitrification in Coal-fired Chain Boiler

作　　者：王巍然 陈会来 王元 WANG Weiran;CHEN Huilai;WANG Yuan

机构地区：[1]天津宇澄久华节能环保技术有限公司,天津300384 [2]青岛海湾新材料科技有限公司,山东青岛266043

出　　处：《煤气与热力》2018年第10期1-3,37,共4页Gas & Heat

摘　　要：介绍固态还原剂选择性非催化还原法(PSNCR)脱硝的系统构成和工艺流程,与选择性催化还原法(SCR)、选择性非催化还原法(SNCR)、臭氧氧化法脱硝进行对比分析。对在天津市某区2×29 MW供热燃煤链条炉增设PSNCR脱硝设备前后的氮氧化物(NO_x)排放质量浓度进行监测。结果表明,燃煤锅炉NO_x排放值小于170 mg/m^3;与SCR、SNCR、臭氧氧化法相比,对供热燃煤链条炉,PSNCR在造价、运行费用、占地面积等方面具有优势。The system composition and process flow of powder selective non-catalytic reduction （PSNCR） for denitrification are introduced,and it is compared with selective catalytic reduction （SCR）,selective non-catalytic reduction （SNCR） and ozone oxidation denitrification. The mass concentration of nitrogen oxides （NO x ） emissions before and after the addition of PSNCR for denitrification equipment in 2×29 MW heating coal-fired chain boiler in a district of Tianjin is monitored. The results show that the NO x emission value of the coal-fired boilers is less than 170 mg/m3. Compared with SCR,SNCR and ozone oxidation methods,PSNCR has advantages in cost,operation cost and floor area etc for heating coal-fired chain boiler.

关 键 词：燃煤链条锅炉 脱硝 氮氧化物 固态还原剂选择性非催化还原法 

分 类 号：TU995.7[建筑科学—供热、供燃气、通风及空调工程]