Exploring the Key Factors in Dusty Gas Filtration: Experimental and Modeling Studies

Tang，Xi1; Zhao，Shuaifei2; Feng，Shasha1; Zhong，Zhaoxiang1; Xing，Weihong1

2019

10.1021/acs.iecr.9b03961

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH   影响因子和分区

0888-5885

1520-5045

Airborne particulate matter is causing increasingly serious air pollution and threatening public health. To understand the filtration mechanisms of the membrane filter, the steady and unsteady processes of the fluid in the membrane were calculated. A new pressure drop prediction model considering the membrane microstructure properties, dust properties, and operational conditions was established. The effects of various factors on the pressure drop are in the order of gas viscosity ≈ velocity = membrane thickness > membrane pore size in the steady process. These results provide a guideline for the selection of membrane parameters in membrane preparation and operational conditions in gas filtration. In the unsteady gas filtration process, membrane pore blocking and caking layer formation were analyzed, and a model of the dusty gas filtration process was developed. The predicted values fit well with the experimental results. The membrane thickness is the most important factor in membrane development, and gas velocity is the most important operational parameter in dusty gas filtration. This study provides significant insights into both selecting optimal parameters in membrane design and optimizing the operational conditions in gas filtration. ©

SCI ; EI

英语

其他

[2016YFC0204000] ; National Natural Science Foundation of China[U1510202]

Engineering

Engineering, Chemical

WOS:000500349200029

American Chemical Society

20194207530332

Air pollution ; Drops ; Gases ; Membranes ; Pore size ; Pressure drop

Air Pollution:451 ; Chemical Operations:802.3 ; Materials Science:951

CHEMISTRY

2-s2.0-85073110980

Scopus

1.State Key Laboratory of Materials-Oriented Chemical EngineeringNational Engineering Research Center for Special Separation MembraneNanjing Tech University,Nanjing,210009,China
2.State Environ. Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution ControlSchool of Environmental Science and EngineeringSouthern University of Science and Technology,Shenzhen,518055,China

Tang，Xi,Zhao，Shuaifei,Feng，Shasha,et al. Exploring the Key Factors in Dusty Gas Filtration: Experimental and Modeling Studies[J]. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,2019,58(42):19633-19641.

Tang，Xi,Zhao，Shuaifei,Feng，Shasha,Zhong，Zhaoxiang,&Xing，Weihong.(2019).Exploring the Key Factors in Dusty Gas Filtration: Experimental and Modeling Studies.INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,58(42),19633-19641.

Tang，Xi,et al."Exploring the Key Factors in Dusty Gas Filtration: Experimental and Modeling Studies".INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH 58.42(2019):19633-19641.