化工新型材料

化工新型材料 ›› 2022, Vol. 50 ›› Issue (10) : 214-219. DOI: 10.19817/j.cnki.issn1006-3536.2022.10.041

科学研究

PTFE@SMCC-8/P84-HCl滤料的制备与性能研究

^1,2*

作者信息 +

Study on preparation and performance of PTFE@SMCC-8/P84-HCl filter material

Xu Mutao¹, Zhi Xiaohuan¹, Ji Wenyu¹, Xu Haitao^1,2

Author information +

文章历史 +

Received		Published
2021-06-16		2022-10-20
Issue Date	Revised Date
2022-11-01	2021-06-16

PDF

摘要

采用前期实验制备的Sn-Mn-Ce-Co-O_x催化剂(记作SMCC催化剂),通过浸渍法负载催化剂,并涂覆聚四氟乙烯发泡涂层制备PTFE@SMCC/P84-HCl复合催化滤料,在微型固定床反应器中对复合催化滤料脱硝、脱氯苯活性进行评价。结果表明,催化剂负载量的提高给污染物提供了更多的吸附位点,催化性能提升;聚四氟乙烯发泡涂层涂覆提高了催化剂与滤料的结合强度,且有助于提高滤料透气率。使用20%的HCl处理,负载500g/m²的SMCC-8催化剂,并在滤料表面涂覆一层4%的PTFE发泡涂层制备得到的复合催化滤料具备最优的理化性能,在160～260℃温度范围内,NO的最高去除率为98%,氯苯的T₅₀和T₉₀分别为226℃和252℃。

Abstract

Using the Sn-Mn-Ce-Co-O_x catalyst prepared in the previous experiment (denoted as SMCC catalyst),the catalyst was supported by the impregnation method and coated with polytetrafluoroethylene(PTFE) foam coating to prepare PTFE@SMCC/P84-HCl composite catalytic filter.The activity of the filter for denitration and dechlorination of benzene was evaluated in a micro fixed bed reactor.The results showed that the increase in catalyst loading provided more adsorption sites for pollutants,and improved the catalytic performance.Coated the Foam coating improved the bonding strength of the catalyst and the filter material,and was help to increase the air permeability of the filter material.The filter material prepared by using 20% HCl treatment,loading 500g/m² SMCC-8 catalyst,and coating a layer of 4% PTFE foam coating on the surface of the filter material had the best physical and chemical properties.In the range of 160～260℃,the highest removal rate of NO was 98%,and the T₅₀ and T₉₀ of chlorobenzene were 226℃ and 252℃,respectively.

关键词

复合催化滤料 / 浸渍法 / 聚酰亚胺滤料 / 脱硝 / 脱氯苯

Key words

compound catalytic filter material / impregnation method / polyimide filter material / NO removal / chlorobenzene removal

引用本文

引用格式 ▾

PTFE@SMCC-8/P84-HCl滤料的制备与性能研究[J]. 化工新型材料, 2022, 50(10): 214-219 DOI:10.19817/j.cnki.issn1006-3536.2022.10.041

登录浏览全文

4963

注册一个新账户忘记密码

参考文献

原文顺序 | 出版日期 | 本文引用

[1] Dong J,Jeswani H K,Nzihou A,et al.The environmental cost of recovering energy from municipal solid waste[J].Applied Energy,2020,267:114792.
[2] 方晓明.生活垃圾焚烧厂的废气治理措施[J].科技创新与应用,2019,(12):122-123.
[3] Stanmore B R.The formation of dioxins in combustion systems[J].Combustion and Flame,2004,136(3):398-427.
[4] Lomnicki S,Dellinger B.Formation of PCDD/F from the pyrolysis of 2-chlorophenol on the surface of dispersed copper oxide particles[J].Proceedings of the Combustion Institute,2002,29(2):2463-2468.
[5] Setyan A,Patrick M,Wang J.Very low emissions of airborne particulate pollutants measured from two municipal solid waste incineration plants in Switzerland[J].Atmospheric Environment,2017,166:99-109.
[6] 武建业.城市生活垃圾焚烧处理技术综述[J].甘肃科技,2020,36(5):22-26.
[7] 赵丹.垃圾焚烧电厂烟气超低排放技术路线研究[J].锅炉技术,2019,50(4):75-79.
[8] Wen Z,Di J,Liu S,et al.Evaluation of flue-gas treatment technologies for municipal waste incineration:a case study in Changzhou,China[J].Journal of Cleaner Production,2018,184:912-920.
[9] Feng S,Li D,Low Z,et al.ALD-seeded hydrothermally-grown Ag/ZnO nanorod PTFE membrane as efficient indoor air filter[J].Journal of Membrane Science,2017,531:86-93.
[10] Yang B,Huang Q,Chen M,et al.Mn-Ce-Nb-O/P84 catalytic filters prepared by a novel method for simultaneous removal of particulates and NO[J].Journal of Rare Earths,2019,37(3):273-281.
[11] 杨波.新型低温除尘脱硝一体化滤料的制备及性能研究[D].南京:南京工业大学,2017.
[12] Chen J,Zhong Z,Xia Y,et al.Recent developments on catalytic membrane for gas cleaning[J].Chinese Journal of Chemical Engineering,2019,27(6):1391-1402.
[13] 李银生,段钰锋,刘猛,等.团絮状双效催化聚苯硫醚滤料反应参数及机理[J].中国环境科学,2019,39(6):2344-2353.
[14] Abubakar A,Li C,Huangfu L,et al.Simultaneous removal of particulates and NO by the catalytic bag filter containing V₂O₅-MoO₃/TiO₂[J].Korean Journal of Chemical Engineering,2020,37(4):633-640.
[15] Xu Z,Sun H,Li X,et al.A new solution for destruction of PCDD/Fs by a catalytic filter system at waste incinerators[J].E3S Web of Conferences,2019,118:4046.
[16] Fritsky K J,Kumm J H,Wilken M.Combined PCDD/F destruction and particulate control in a baghouse:experience with a catalytic filter system at a medical waste incineration plant[J].Journal of the Air & Waste Management Association(1995),2001,51(12):1642-1649.
[17] Granite E J,Myers C R,King W P,et al.Sorbents for mercury capture from fuel gas with application to gasification systems[J].Industrial & Engineering Chemistry Research,2006,45(13):4844-4848.
[18] 吴林虎,刘猛,李银生.低温催化复合功能滤料脱硝协同脱汞性能研究[J].发电设备,2019,33(6):399-403.
[19] Wang P,Su S,Xiang J,et al.Catalytic oxidation of Hg⁰ by MnO_x-CeO₂/γ-Al₂O₃ catalyst at low temperatures[J].Chemosphere,2014,101:49-54.
[20] Tsukada M,Nishikawa N,Horikawa A,et al.Emission potential of condensable suspended particulate matter from flue gas of solid waste combustion[J].Powder Technology,2008,180(1-2):140-144.
[21] 郑玉婴,刘清,汪谢.聚苯硫醚滤料的预处理及其SCR的催化活性[J].高分子材料科学与工程,2012,28(11):89-91.
[22] 彭真.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[D].合肥:合肥工业大学,2016.
[23] Park B H,Lee M,Kim S B,et al.Evaluation of the surface properties of PTFE foam coating filter media using XPS and contact angle measurements[J].Applied Surface Science,2011,257(8):3709-3716.
[24] Park B H,Lee M,Kim S B,et al.Preparation and characterization of porous composite filter medium by polytetrafluoroethylene foam coating[J].Journal of the Air & Waste Management Association(1995),2010,60(2):137-141.
[25] 徐毓亚,闵庭元.过滤材料纤维含量定量分析方法的探究[J].中国纤检,2016(11):90-93.