{"title":"温度对碳化硅陶瓷膜粉尘过滤性能的影响","authors":"Jinxin Gan, Lekai Zhao, Jiesong Tan, Yiqing Zeng*, Jiangxiao Qiao, Jiahao Chen, Zhaoxiang Zhong* and Weihong Xing, ","doi":"10.1021/acs.iecr.4c01382","DOIUrl":null,"url":null,"abstract":"<p >High-temperature filtration is an energy-saving and efficient technology for treating high-temperature dusty exhaust, while most of the current studies focus on the design and preparation of high-temperature filtration materials and their application in room-temperature filtration. In this work, SiC ceramic membranes were prepared as typical high-temperature filtration materials to systematically investigate the high-temperature filtration process at 25–400 °C. The experimental results show that the filtration temperature has a significant effect on both initial filtration and cake filtration processes. The increase of temperature results in an increase of gas viscosity, which contributes to the increase of the initial filtration pressure drop (Δ<i>P</i><sub>0</sub>). Meanwhile, temperature can affect the forces on dust in the pore of the SiC membrane, and a higher temperature leads to the easy penetration of dust (especially for the ultrafine particles) through the membrane layer into the support body layer at the initial filtration process. Moreover, the higher temperature can reduce the porosity of the dust cake, leading to an increase in the cake pressure drop (Δ<i>P</i><sub>c</sub>). All above results were further proved during the experiments on studying the effect of the filtration velocity, dust concentration, and regeneration on the filtration performance of SiC membranes at 25 and 300 °C. Through this work, we expect to shed some light on the design and preparation of high-temperature filtration materials and on the understanding of the high-temperature filtration process.</p>","PeriodicalId":39,"journal":{"name":"Industrial & Engineering Chemistry Research","volume":null,"pages":null},"PeriodicalIF":3.8000,"publicationDate":"2024-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Temperature Effect on the Dust Filtration Performance of SiC Ceramic Membranes\",\"authors\":\"Jinxin Gan, Lekai Zhao, Jiesong Tan, Yiqing Zeng*, Jiangxiao Qiao, Jiahao Chen, Zhaoxiang Zhong* and Weihong Xing, \",\"doi\":\"10.1021/acs.iecr.4c01382\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p >High-temperature filtration is an energy-saving and efficient technology for treating high-temperature dusty exhaust, while most of the current studies focus on the design and preparation of high-temperature filtration materials and their application in room-temperature filtration. In this work, SiC ceramic membranes were prepared as typical high-temperature filtration materials to systematically investigate the high-temperature filtration process at 25–400 °C. The experimental results show that the filtration temperature has a significant effect on both initial filtration and cake filtration processes. The increase of temperature results in an increase of gas viscosity, which contributes to the increase of the initial filtration pressure drop (Δ<i>P</i><sub>0</sub>). Meanwhile, temperature can affect the forces on dust in the pore of the SiC membrane, and a higher temperature leads to the easy penetration of dust (especially for the ultrafine particles) through the membrane layer into the support body layer at the initial filtration process. Moreover, the higher temperature can reduce the porosity of the dust cake, leading to an increase in the cake pressure drop (Δ<i>P</i><sub>c</sub>). All above results were further proved during the experiments on studying the effect of the filtration velocity, dust concentration, and regeneration on the filtration performance of SiC membranes at 25 and 300 °C. Through this work, we expect to shed some light on the design and preparation of high-temperature filtration materials and on the understanding of the high-temperature filtration process.</p>\",\"PeriodicalId\":39,\"journal\":{\"name\":\"Industrial & Engineering Chemistry Research\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":3.8000,\"publicationDate\":\"2024-06-19\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Industrial & Engineering Chemistry Research\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://pubs.acs.org/doi/10.1021/acs.iecr.4c01382\",\"RegionNum\":3,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"ENGINEERING, CHEMICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Industrial & Engineering Chemistry Research","FirstCategoryId":"5","ListUrlMain":"https://pubs.acs.org/doi/10.1021/acs.iecr.4c01382","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, CHEMICAL","Score":null,"Total":0}
引用次数: 0
摘要
高温过滤是一种节能高效的高温含尘废气处理技术,而目前的研究大多集中于高温过滤材料的设计制备及其在常温过滤中的应用。在这项工作中,制备了 SiC 陶瓷膜作为典型的高温过滤材料,系统地研究了 25-400 °C 的高温过滤过程。实验结果表明,过滤温度对初始过滤和滤饼过滤过程都有显著影响。温度升高会导致气体粘度增加,从而导致初始过滤压降(ΔP0)增大。同时,温度会影响碳化硅膜孔隙中粉尘的受力,温度越高,粉尘(尤其是超细颗粒)越容易在初始过滤过程中穿过膜层进入支撑体层。此外,较高的温度会降低灰尘滤饼的孔隙率,导致滤饼压降(ΔPc)增大。在研究过滤速度、粉尘浓度和再生对 25 和 300 °C 下 SiC 膜过滤性能的影响的实验中,上述结果得到了进一步证实。通过这项工作,我们希望能对高温过滤材料的设计和制备以及对高温过滤过程的理解有所启发。
Temperature Effect on the Dust Filtration Performance of SiC Ceramic Membranes
High-temperature filtration is an energy-saving and efficient technology for treating high-temperature dusty exhaust, while most of the current studies focus on the design and preparation of high-temperature filtration materials and their application in room-temperature filtration. In this work, SiC ceramic membranes were prepared as typical high-temperature filtration materials to systematically investigate the high-temperature filtration process at 25–400 °C. The experimental results show that the filtration temperature has a significant effect on both initial filtration and cake filtration processes. The increase of temperature results in an increase of gas viscosity, which contributes to the increase of the initial filtration pressure drop (ΔP0). Meanwhile, temperature can affect the forces on dust in the pore of the SiC membrane, and a higher temperature leads to the easy penetration of dust (especially for the ultrafine particles) through the membrane layer into the support body layer at the initial filtration process. Moreover, the higher temperature can reduce the porosity of the dust cake, leading to an increase in the cake pressure drop (ΔPc). All above results were further proved during the experiments on studying the effect of the filtration velocity, dust concentration, and regeneration on the filtration performance of SiC membranes at 25 and 300 °C. Through this work, we expect to shed some light on the design and preparation of high-temperature filtration materials and on the understanding of the high-temperature filtration process.
期刊介绍:
ndustrial & Engineering Chemistry, with variations in title and format, has been published since 1909 by the American Chemical Society. Industrial & Engineering Chemistry Research is a weekly publication that reports industrial and academic research in the broad fields of applied chemistry and chemical engineering with special focus on fundamentals, processes, and products.