VMoTi/玻纤复合催化滤布制备及其除尘协同脱硝性能研究

doi:10.11949/0438-1157.20210092

化工学报 ›› 2021, Vol. 72 ›› Issue (9): 4892-4899.DOI: 10.11949/0438-1157.20210092

VMoTi/玻纤复合催化滤布制备及其除尘协同脱硝性能研究

单良^1,²(),尹荣强²,王慧²,费传军³,周清清^1,²,徐杰^1,²,王志强^1,²,徐涛³,陈建军^1,²(),李俊华^1,²

^1.清华大学盐城环境工程技术研发中心，江苏盐城 224000
^2.清华大学烟气多污染物控制技术与装备国家工程实验室，北京 100084
^3.南京玻璃纤维研究设计院有限公司，江苏南京 210012

收稿日期:2021-01-14 修回日期:2021-03-16 出版日期:2021-09-05 发布日期:2021-09-05
通讯作者: 陈建军
作者简介:单良(1987—)，男，硕士研究生，工程师，shanliangsir@126.com
基金资助:
国家自然科学基金项目(52070114);佛山-清华产学研合作协同创新专项(佛山创新专项)资金(2019THFS0101)

Preparation of VMoTi/glass fiber catalytic filter-cloth and research on its dust and NO_x synergistic removal performance

Liang SHAN^1,²(),Rongqiang YIN²,Hui WANG²,Chuanjun FEI³,Qingqing ZHOU^1,²,Jie XU^1,²,Zhiqiang WANG^1,²,Tao XU³,Jianjun CHEN^1,²(),Junhua LI^1,²

^1.Tsinghua－Yancheng Environmental Engineering Technology Research and Development Center，Yancheng 224000，Jiangsu, China
^2.National Engineering Laboratory for Flue Gas Pollutants Control Technology and Equipment，Tsinghua University，Beijing 100084，China
^3.Nanjing Fiberglass Research & Design Institute Co. , Ltd. ，Nanjing 210012, Jiangsu, China

Received:2021-01-14 Revised:2021-03-16 Online:2021-09-05 Published:2021-09-05
Contact: Jianjun CHEN

摘要/Abstract

摘要：

采用浸渍法制备出具有脱硝除尘功能的VMoTi/玻纤复合催化滤布，研究了VMoTi/玻纤复合催化滤布的脱硝除尘性能。考察了负载量、黏结剂、反应温度、过滤风速、SO₂和H₂O对脱硝除尘性能的影响，通过SEM、XRD及EDS表征手段进行分析，结果表明：当负载量为130 g/m²，过滤风速为0.5 m/min，在200~250℃下，脱硝效率为60%~85%。且在定压喷吹老化500次后，脱硝效率无明显下降，表现出良好的脱硝性能稳定性。通入SO₂和H₂O后，脱硝效率维持在75%以上，具有良好的抗水硫性能。VMoTi/玻纤复合催化滤布除尘效率在99.99%以上，满足实际工业烟尘治理应用要求。

关键词: 过滤, VMoTi催化剂, 选择催化还原, 玻璃纤维滤布, 一体化脱除

Abstract:

The VMoTi/glass-fiber catalytic filter-cloth (VGCF) with denitrification (DeNO_x) and dust removal (Dedust) function was prepared by impregnation method, and NO_x and dust removal performance of VGCF was systematically studied. The effects of catalyst-loading, binder, reaction temperature, filtering velocity, SO₂ and H₂O on the performance of DeNO_x_{and Dedust were investigated, combined with SEM, XRD and EDS characterization methods. It was found that the DeNO_x efficiency is 60%—85% at 200—250℃ when the loading capacity was 130 g/m² and the filtering velocity was 0.5 m/min. Further, after 500 times of pulsing aging, the DeNO_x efficiency is basically unchanged, indicating good stability of DeNO_x. After adding SO₂ and H₂O, the DeNO_x efficiency is maintained at more than 75%, showing great resistance to SO₂ and H₂O. The dust removal efficiency of VMoTi/glass fiber composite catalytic filter cloth is above 99.99%, which meets the requirements of actual industrial smoke and dust treatment applications.}

Key words: filtration, VMoTi catalyst, SCR, glass-fiber filter-cloth, simultaneously removal

中图分类号:

X 511

单良, 尹荣强, 王慧, 费传军, 周清清, 徐杰, 王志强, 徐涛, 陈建军, 李俊华. VMoTi/玻纤复合催化滤布制备及其除尘协同脱硝性能研究[J]. 化工学报, 2021, 72(9): 4892-4899.

Liang SHAN, Rongqiang YIN, Hui WANG, Chuanjun FEI, Qingqing ZHOU, Jie XU, Zhiqiang WANG, Tao XU, Jianjun CHEN, Junhua LI. Preparation of VMoTi/glass fiber catalytic filter-cloth and research on its dust and NO_x synergistic removal performance[J]. CIESC Journal, 2021, 72(9): 4892-4899.

图/表 13

图1 滤布脱硝评价装置

Fig.1 Denitration evaluation device of the filter cloth

图2 滤料过滤性能评价系统

Fig.2 The evaluation system of filter material for filtration

图3 SEM图与EDS图

Fig.3 SEM images and high-resolution EDS mapping

图4 玻璃纤维布与VMoTi/玻纤复合催化滤布的XRD谱图

Fig.4 Powder X-ray diffraction(XRD) patterns of glass-fiber filter-cloth and the VGCF

图5 负载量对VMoTi/玻纤复合催化滤布脱硝性能及N2选择性的影响

Fig.5 Effect of catalyst loading on catalytic activity and N2 selectivity of the VGCF

图6 负载量对VMoTi/玻纤复合催化滤布过滤压差的影响

Fig.6 Effect of catalyst loading on filter pressure of the VGCF

图7 黏结剂对VMoTi/玻纤复合催化滤布脱硝性能影响

Fig.7 Effect of binder on catalytic activity of the VGCF

图8 喷吹前后VMoTi/玻纤复合催化滤布质量变化

Fig.8 The mass of the VGCF before and after pulsing

图9 过滤风速对VMoTi/玻纤复合催化滤布脱硝性能及N2选择性的影响

Fig.9 Effect of filtering velocity on catalytic activity and N2 selectivity of the VGCF

图10 喷吹老化对VMoTi/玻纤复合催化滤布脱硝性能的影响

Fig.10 Effect of plusing agingon catalytic activity of the VGCF

图11 H2O与SO2对VMoTi/玻纤复合催化滤布脱硝性能的影响

Fig.11 Effect of H2O and SO2 on catalytic activity of the VGCF

图12 VMoTi/玻纤复合催化滤布1000 Pa定压喷吹30个周期的阻力变化

Fig.12 The pressure drop during 30 cycles of the VGCF with 1000 Pa constant pressure pulsing

图13 未负载催化剂玻纤滤布和VMoTi/玻纤复合催化滤布耐磨性能

Fig.13 The abrasion resistance of glass-fiber filter-cloth and the VGCF

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VMoTi/玻纤复合催化滤布制备及其除尘协同脱硝性能研究

Preparation of VMoTi/glass fiber catalytic filter-cloth and research on its dust and NO_x synergistic removal performance

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VMoTi/玻纤复合催化滤布制备及其除尘协同脱硝性能研究

Preparation of VMoTi/glass fiber catalytic filter-cloth and research on its dust and NOx synergistic removal performance

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Preparation of VMoTi/glass fiber catalytic filter-cloth and research on its dust and NO_x synergistic removal performance