石瑞1,
邓军1,
许文晋2,
张光旭2,
王逸1,
夏亮1
1.上海亨远船舶设备有限公司，上海 201709
2.武汉理工大学化学化工与生命科学学院，武汉 430070
基金项目: 工业和信息化部高技术船舶科研计划重大工程与专项(CDGC01-KT16)
Pilot-scale study on removal of NO from diesel exhaust with Fe (II) EDTA complexationcombined with iron filings reduction
ZHANG Guomeng1,2,,SHI Rui1,
DENG Jun1,
XU Wenjin2,
ZHANG Guangxu2,
WANG Yi1,
XIA Liang1
1.Shanghai Hengyuan Marine Equipment Co.Ltd., Shanghai 201709, China
2.School of Chemistry，Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan 430070, China
-->
摘要
HTML全文
图
参考文献
相关文章
施引文献
资源附件
访问统计
摘要:采用Fe (II) EDTA络合-铁屑还原脱硝工艺，针对功率175 kW的柴油机，搭建了处理量为640 m3·h-1的脱硫脱硝中试装置，系统研究了脱硝装置连续脱除柴油机尾气中NO的过程。结果表明：铁屑还原效果较好，连续运行时，Fe (II) EDTA溶液对NO有很好的吸收效果；喷淋量、填料层高度及再生温度均会影响络合剂吸收NO的脱除效率，但功率的改变对络合剂吸收NO的脱除效率影响较小。长时间连续运行实验表明，系统的脱硝性能稳定，稳定运行时的脱硝效率连续7 d均保持在75%左右；系统运行过程中，络合液的pH逐渐上升，最终稳定在7.45左右。
关键词: 柴油机尾气/
Fe (II) EDTA/
NO/
铁屑还原/
中试实验
Abstract:With the successful construction of desulfurization denitration pilot plant (640 m3·h-1) for the 175 kW diesel engine, the process of continuous removal of NO from diesel exhaust with the method of complexation with Fe (II) EDTA and reduction with iron filings was systematically investigated. Results showed that iron filings was a desirable reductant and the Fe (II) EDTA solution had highly continuous removal efficiency of NO in the exhaust gas. The spray rates, packing height and regeneration temperature all affected the removal efficiency of NO. There was no obvious change of removal efficiency with the studied working condition. In addition, the long-time continuous operation showed that the denitrification efficiency could maintain 75% for 7 days, demonstrating a desirable stability. In the continuous operation process, the complexing agent pH gradually increased and finally stabilized at pH=7.45.
Key words:diesel exhaust/
Fe (II) EDTA/
nitric oxide/
reduction with iron filings/
pilot test.
| [1] | 彭丽,朱意秋.我国海运业发展的国际比较[J]. 综合运输,2008(5):70-73 |
| [2] | ANTES T, SZUDYGA M, ?LIWI?SKI?,et al.Future needs for ship emission abatement and technical measures[J].Transport Problems An International Scientific Journal, 2013,8(3):101-107 |
| [3] | 陈思乐,许桂敏,穆海宝,等.低温等离子体处理柴油机尾气的研究进展[J]. 高压电器,2016(4):22-29 |
| [4] | 朱少文,沈伯雄,池桂龙,等.铁钴共掺杂的Mn-Ce/TiO2催化剂低温SCR脱硝[J]. 环境工程学报, 2017,11(6):3633-3639 10.12030/j.cjee.201609229 |
| [5] | DAHLIN S, NILSSON M, B?CKSTR?M D,et al.Multivariate analysis of the effect of biodiesel-derived contaminants on V2O5?WO3/TiO2 SCR catalysts [J].Applied Catalysis B:Environmental, 2016,183:377-385 10.1016/j.apcatb.2015.10.045 |
| [6] | FORZATTI P.Present status and perspectives in de-NOx SCR catalysis[J].Applied Catalysis A：General, 2001,222(1/2):221-236 10.1016/S0926-860X(01)00832-8 |
| [7] | 高岩,栾涛,彭吉伟,等.V2O5-WO3-MoO3/TiO2催化剂在柴油机NH3-SCR系统中的性能[J]. 化工学报, 2013,64(9):3356-3366 |
| [8] | JANGJOU Y, WANG D, KUMAR A,et al.SO2 poisoning of the NH3-SCR reaction over Cu-SAPO-34: Effect of ammonium sulfate versus other S-containing species[J].ACS Catalysis, 2016,6(10):6612-6622 10.1021/acscatal.6b01656 |
| [9] | PENG Y, WANG D, LI B,et al.Impacts of Pb and SO2 poisoning on CeO2-WO3/TiO2-SiO2 SCR catalyst[J].Environmental Science & Technology, 2017,51(20):11943-11949 10.1021/acs.est.7b03309 |
| [10] | ZHANG S L, LI H Y, ZHONGQ.Promotional effect of F-doped V2O5–WO3/TiO2 catalyst for NH3-SCR of NO at low-temperature[J].Applied Catalysis A: General, 2012,435(17):156-162 10.1016/j.apcata.2012.05.049 |
| [11] | 黎宝林,李明玉,刘海豪,等.络合-氧化-还原耦合方法脱除烟气中NOx的研究[J]. 中国环境科学, 2014,34(5):1125-1130 |
| [12] | 王莉, 赵伟荣, 吴忠标.金属络合吸收剂在湿法脱硝中的应用[J]. 环境工程学报,2007,1(2):88-93 |
| [13] | GAMBARDELLA F, ALBERTS M S, WINKELMAN J, et al.Experimental and modeling studies on the absorption of NO in aqueous ferrous EDTA solutions[J].Industrial & Engineering Chemistry Research,2005,44(12):4234-4242 10.1021/ie048767d |
| [14] | CHIEN T W, HSUEH H T, CHU B Y, et al.Absorption kinetics of NO from simulated flue gas using Fe (II) EDTA solutions[J].Process Safety & Environmental Protection, 2009,87(5):300-306 |
| [15] | 叶小莉,吴晓琴,王淑娟.Fe (II) EDTA络合剂吸收NO的研究[J]. 环境科学与技术,2014,37(7):141-144 |
| [16] | 马乐凡,童志权,夏畅斌,等.Fe2+EDTA络合-铁屑还原连续脱除烟气中NO[J]. 环境科学学报,2008,28(7):1360-1364 |
| [17] | 王莉.Fe (II) EDTA湿法络合脱硝液的再生及资源化初探[D].杭州:浙江大学, 2007 |
| [18] | 张顾,王世杰,李富智,等.氨-Fe (II) EDTA法同步脱硫脱硝中试研究[J]. 环境工程学报,2015,9(12):5939-5944 |
| [19] | LIU N, LU B H, ZHANG S H, et al.Evaluation of nitric oxide removal from simulatedflue gas by Fe (II) EDTA/Fe(II)citrate mixed absorbents[J].Energy & Fuels,2012,26(8):4910-4916 10.1021/ef300538x |
Turn off MathJax -->
点击查看大图计量
文章访问数:1144
HTML全文浏览数:871
PDF下载数:137
施引文献:0
出版历程
刊出日期:2018-08-17
-->
柴油机尾气Fe (II) EDTA络合-铁屑还原脱硝中试研究
张国孟1,2,,石瑞1,
邓军1,
许文晋2,
张光旭2,
王逸1,
夏亮1
1.上海亨远船舶设备有限公司，上海 201709
2.武汉理工大学化学化工与生命科学学院，武汉 430070
基金项目: 工业和信息化部高技术船舶科研计划重大工程与专项(CDGC01-KT16)
关键词: 柴油机尾气/
Fe (II) EDTA/
NO/
铁屑还原/
中试实验
摘要:采用Fe (II) EDTA络合-铁屑还原脱硝工艺，针对功率175 kW的柴油机，搭建了处理量为640 m3·h-1的脱硫脱硝中试装置，系统研究了脱硝装置连续脱除柴油机尾气中NO的过程。结果表明：铁屑还原效果较好，连续运行时，Fe (II) EDTA溶液对NO有很好的吸收效果；喷淋量、填料层高度及再生温度均会影响络合剂吸收NO的脱除效率，但功率的改变对络合剂吸收NO的脱除效率影响较小。长时间连续运行实验表明，系统的脱硝性能稳定，稳定运行时的脱硝效率连续7 d均保持在75%左右；系统运行过程中，络合液的pH逐渐上升，最终稳定在7.45左右。
English Abstract
Pilot-scale study on removal of NO from diesel exhaust with Fe (II) EDTA complexationcombined with iron filings reduction
ZHANG Guomeng1,2,,SHI Rui1,
DENG Jun1,
XU Wenjin2,
ZHANG Guangxu2,
WANG Yi1,
XIA Liang1
1.Shanghai Hengyuan Marine Equipment Co.Ltd., Shanghai 201709, China
2.School of Chemistry，Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan 430070, China
Keywords: diesel exhaust/
Fe (II) EDTA/
nitric oxide/
reduction with iron filings/
pilot test
Abstract:With the successful construction of desulfurization denitration pilot plant (640 m3·h-1) for the 175 kW diesel engine, the process of continuous removal of NO from diesel exhaust with the method of complexation with Fe (II) EDTA and reduction with iron filings was systematically investigated. Results showed that iron filings was a desirable reductant and the Fe (II) EDTA solution had highly continuous removal efficiency of NO in the exhaust gas. The spray rates, packing height and regeneration temperature all affected the removal efficiency of NO. There was no obvious change of removal efficiency with the studied working condition. In addition, the long-time continuous operation showed that the denitrification efficiency could maintain 75% for 7 days, demonstrating a desirable stability. In the continuous operation process, the complexing agent pH gradually increased and finally stabilized at pH=7.45.
