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

doi:10.11949/0438-1157.20210092

Abstract

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

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

CLC Number:

X 511

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.

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.

Figures/Tables 13

Fig.1 Denitration evaluation device of the filter cloth

Fig.2 The evaluation system of filter material for filtration

Fig.3 SEM images and high-resolution EDS mapping

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

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

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

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

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

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

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

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

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

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

References 30

1	李歌, 王宝冬, 马子然, 等. 烟气多污染物协同处理催化陶瓷过滤管的研究进展[J]. 化工进展, 2020, 39(8): 3307-3319.
	Li G, Wang B D, Ma Z R, et al. Research progress of catalytic ceramic filter tubes for synergistic removal of flue gas pollutants[J]. Chemical Industry and Engineering Progress, 2020, 39(8): 3307-3319.
2	Dvořák R, Chlápek P, Jecha D, et al. New approach to common removal of dioxins and NO_x as a contribution to environmental protection[J]. Journal of Cleaner Production, 2010, 18(9): 881-888.
3	王军锋, 李金, 徐惠斌, 等. 湿法脱硫协同去除细颗粒物的研究进展[J]. 化工进展, 2019, 38(7): 3402-3411.
	Wang J F, Li J, Xu H B, et al. Advances in research on wet desulfurization and synergistic removal of fine particles[J]. Chemical Industry and Engineering Progress, 2019, 38(7): 3402-3411.
4	武广龙, 赵静, 何海军, 等. 陶瓷催化滤管烟气污染物一体化脱除技术研究进展[J]. 能源环境保护, 2020, 34(5): 1-5.
	Wu G L, Zhao J, He H J, et al. Research process on integrated removal technology of flue gas pollutants by ceramic catalytic filter tube[J]. Energy Environmental Protection, 2020, 34(5): 1-5.
5	Feng S S, Zhou M D, Han F, et al. A bifunctional MnO_x@PTFE catalytic membrane for efficient low temperature NO_x-SCR and dust removal[J]. Chinese Journal of Chemical Engineering, 2020, 28(5): 1260-1267.
6	Li W M, Liu H D, Chen Y F. Fabrication of MnO_x-CeO₂-based catalytic filters and their application in low-temperature selective catalytic reduction of NO with NH₃[J]. Industrial & Engineering Chemistry Research, 2020, 59(28): 12657-12665.
7	Phule A D, Choi J H, Kim J H. High performance of catalytic sheet filters of V₂O₅-WO₃/TiO₂ for NO_x reduction[J]. Environmental Science and Pollution Research, 2020, doi:10.1007/S11356-020-10552-2. DOI URL
8	杨波, 沈岳松, 邱云顺, 等. Mn-La-Ce-Ni-O_x/P84一体化滤布的低温脱硝影响因素[J]. 环境工程学报, 2016, 10(11): 6583-6587.
	Yang B, Shen Y S, Qiu Y S, et al. Influencing factors on low-temperature deNO_x performance of Mn-La-Ce-Ni-O_x/ P84[J]. Chinese Journal of Environmental Engineering, 2016, 10(11): 6583-6587.
9	陈影. 催化脱硝功能性聚苯硫醚(PPS)针刺过滤材料的制备及性能研究[D]. 青岛: 青岛大学, 2020.
	Chen Y. Preparation and performance study of catalytic denitrification functional polyphenylene sulfide(PPS) needle filtration material[D]. Qingdao: Qingdao University, 2020.
10	张先龙, 彭真, 刘鹏, 等. 基于PPS的锰基催化脱硝-除尘功能一体化滤料的制备及其低温SCR脱硝[J]. 功能材料, 2015, 46(S2): 160-164.
	Zhang X L, Peng Z, Liu P, et al. Preparation of PPS filter loaded with MnO_x for dust elimination and de-NO by low-temperature SCR[J]. Journal of Functional Materials, 2015, 46(S2): 160-164.
11	陆勤伟, 徐辉, 周冠辰, 等. 负载催化剂活性液的P84/PTFE复合滤料的性能[J]. 河南工程学院学报(自然科学版), 2017, 29(4): 22-24.
	Lu Q W, Xu H, Zhou G C, et al. Study on the properties of P84/PTFE composite filter loaded with catalyst active liquid[J]. Journal of Henan Institute of Engineering (Natural Science Edition), 2017, 29(4): 22-24.
12	Yang B, Zheng D H, Shen Y S, et al. Influencing factors on low-temperature deNO_x performance of Mn-La-Ce-Ni-O_x/PPS catalytic filters applied for cement kiln[J]. Journal of Industrial and Engineering Chemistry, 2015, 24: 148-152.
13	Li L, Diao Y F, Liu X. Ce-Mn mixed oxides supported on glass-fiber for low-temperature selective catalytic reduction of NO with NH₃[J]. Journal of Rare Earths, 2014, 32(5): 409-415.
14	Wang R, Zhao L, Hu X H, et al. Study on V₂O₅-WO₃-TiO₂ catalytic filter for de-NO and particle separation[J]. Materials Research Express, 2019, 6(11): 115512.
15	陈雪红, 郑玉婴, 付彬彬, 等. 原位聚合MnO₂/PoPD@PPS复合滤料及其NH₃-SCR脱硝性能研究[J]. 燃料化学学报, 2017, 45(12): 1514-1521.
	Chen X H, Zheng Y Y, Fu B B, et al. Preparation of MnO₂/PoPD@PPS functional composites for low-temperature NO reduction with NH₃[J]. Journal of Fuel Chemistry and Technology, 2017, 45(12): 1514-1521.
16	王书晴, 杨波, 黄俞榕, 等. TiCe_0.25Sn_0.25O_x/聚酰亚胺纤维催化滤布同时脱除NO与粉尘的研究[J]. 环境污染与防治, 2020, 42(11): 1338-1344.
	Wang S Q, Yang B, Huang Y R, et al. TiCe_0.25Sn_0.25O_x/polyimide fiber catalytic filter for simultaneous removal of NO and dust[J]. Environmental Pollution & Control, 2020, 42(11): 1338-1344.
17	Liu F D, He H, Lian Z H, et al. Highly dispersed iron vanadate catalyst supported on TiO₂ for the selective catalytic reduction of NO_x with NH₃[J]. Journal of Catalysis, 2013, 307: 340-351.
18	Choi J H, Kim S K, Bak Y C. The reactivity of V₂O₅-WO₃-TiO₂ catalyst supported on a ceramic filter candle for selective reduction of NO[J]. Korean Journal of Chemical Engineering, 2001, 18(5): 719-724.
19	Han L P, Gao M, Feng C, et al. Fe₂O₃-CeO₂@Al₂O₃ nanoarrays on Al-mesh as SO₂-tolerant monolith catalysts for NO_x reduction by NH₃[J]. Environmental Science & Technology, 2019, 53(10): 5946-5956.
20	Kang L, Han L P, Wang P L, et al. SO₂-tolerant NO_x reduction by marvelously suppressing SO₂ adsorption over Fe_δCe_1–_δVO₄ catalysts[J]. Environmental Science & Technology, 2020, 54(21): 14066-14075.
21	Ha J W, Choi J H. The effect of SO₂and H₂O on the NO reduction of V₂O₅-WO₃/TiO₂/SiC catalytic filter[J]. Korean Chemical Engineering Research, 2014, 52(5): 688-693.
22	Tong T, Chen J J, Xiong S C, et al. Vanadium-density-dependent thermal decomposition of NH₄HSO₄ on V₂O₅/TiO₂ SCR catalysts[J]. Catalysis Science & Technology, 2019, 9(14): 3779-3787.
23	Shimizu T, Hasegawa M, Inagaki M. Effect of water vapor on reaction rates of limestone-catalyzed NH₃oxidation and reduction of N₂O under fluidized bed combustion conditions[J]. Energy & Fuels, 2000, 14(1): 104-111.
24	Ren H T, Zhang L T, Su K H, et al. Thermodynamic study of the chemical vapor deposition in the SiCl₃CH₃-NH₃-H₂ system[J]. Chemical Physics Letters, 2015, 623: 29-36.
25	Li T J, Zhuo Y Q, Chen C H, et al. Effect of water vapor on NH₃ oxidation over CaO at 700—850℃[J]. Journal of Engineering Thermophysics, 2009, 30(7): 1233-1236.
26	Kang Y S, Kim S S, Hong S C. Combined process for removal of SO₂, NO_x, and particulates to be applied to a 1.6-MWe pulverized coal boiler[J]. Journal of Industrial and Engineering Chemistry, 2015, 30: 197-203.
27	于超, 李长明, 张喻升, 等. 典型陶瓷基体对催化滤芯中催化剂分散及脱硝活性的影响[J]. 化工学报, 2018, 69(2): 682-689.
	Yu C, Li C M, Zhang Y S, et al. Effect of ceramic matrices on dispersion of loaded catalyst and DeNO_x activity of catalytic filters[J]. CIESC Journal, 2018, 69(2): 682-689.
28	Chen J J, Zhao W T, Wu Q, et al. Effects of anaerobic SO₂ treatment on nano-CeO₂ of different morphologies for selective catalytic reduction of NO_x with NH₃[J]. Chemical Engineering Journal, 2020, 382: 122910.
29	Jiang B Q, Wu Z B, Liu Y, et al. DRIFT study of the SO₂ effect on low-temperature SCR reaction over Fe-Mn/TiO₂[J]. The Journal of Physical Chemistry C, 2010, 114(11): 4961-4965.
30	Park Y O, Lee K W, Rhee Y W. Removal characteristics of nitrogen oxide of high temperature catalytic filters for simultaneous removal of fine particulate and NO_x[J]. Journal of Industrial and Engineering Chemistry, 2009, 15(1): 36-39.

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