Humidity-control assists high-efficient coal fly ash removal by PTFE membrane

Dongyan Li; Xi Tang; Shasha Feng

doi:10.1016/j.cjche.2021.05.017

Humidity-control assists high-efficient coal fly ash removal by PTFE membrane

Dongyan Li, Xi Tang, Shasha Feng

化工学院

科研成果: 期刊稿件 › 文章 › 同行评审

6 引用（Scopus）

摘要

In the present study, the effects of relative humidity on filtrating coal-fired fly ash with hydrophobic poly tetra fluoroethylene (PTFE) membranes were investigated. The intergranular force of particulate matter at different RH conditions was measured by analyzing the critical angle between particles. Effects of humidity (from 30% to 70%) on filtration pressure drop and membrane fouling conditions were characterized. It was found the membrane showed optimal filtration resistance of 530 Pa at RH of 60% and the gas permeance can be maintained at 1440 m³·m⁻²·h⁻¹·kPa⁻¹. Moreover, to optimize the operation parameters for this filtration system, effects of fly ash concentration, diameter, membrane pore size, and gas velocities were systematically investigated.

源语言	英语
页（从-至）	88-95
页数	8
期刊	Chinese Journal of Chemical Engineering
卷	40
DOI	https://doi.org/10.1016/j.cjche.2021.05.017
出版状态	已出版 - 12月 2021

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title = "Humidity-control assists high-efficient coal fly ash removal by PTFE membrane",

abstract = "In the present study, the effects of relative humidity on filtrating coal-fired fly ash with hydrophobic poly tetra fluoroethylene (PTFE) membranes were investigated. The intergranular force of particulate matter at different RH conditions was measured by analyzing the critical angle between particles. Effects of humidity (from 30% to 70%) on filtration pressure drop and membrane fouling conditions were characterized. It was found the membrane showed optimal filtration resistance of 530 Pa at RH of 60% and the gas permeance can be maintained at 1440 m3·m−2·h−1·kPa−1. Moreover, to optimize the operation parameters for this filtration system, effects of fly ash concentration, diameter, membrane pore size, and gas velocities were systematically investigated.",

keywords = "Collapse angle, Fly ash, Poly tetra fluoroethylene (PTFE) membrane, Pressure drop, Relative humidity",

author = "Dongyan Li and Xi Tang and Shasha Feng",

note = "Publisher Copyright: {\textcopyright} 2021 The Chemical Industry and Engineering Society of China, and Chemical Industry Press Co., Ltd",

year = "2021",

month = dec,

doi = "10.1016/j.cjche.2021.05.017",

language = "英语",

volume = "40",

pages = "88--95",

journal = "Chinese Journal of Chemical Engineering",

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TY - JOUR

T1 - Humidity-control assists high-efficient coal fly ash removal by PTFE membrane

AU - Li, Dongyan

AU - Tang, Xi

AU - Feng, Shasha

PY - 2021/12

Y1 - 2021/12

N2 - In the present study, the effects of relative humidity on filtrating coal-fired fly ash with hydrophobic poly tetra fluoroethylene (PTFE) membranes were investigated. The intergranular force of particulate matter at different RH conditions was measured by analyzing the critical angle between particles. Effects of humidity (from 30% to 70%) on filtration pressure drop and membrane fouling conditions were characterized. It was found the membrane showed optimal filtration resistance of 530 Pa at RH of 60% and the gas permeance can be maintained at 1440 m3·m−2·h−1·kPa−1. Moreover, to optimize the operation parameters for this filtration system, effects of fly ash concentration, diameter, membrane pore size, and gas velocities were systematically investigated.

AB - In the present study, the effects of relative humidity on filtrating coal-fired fly ash with hydrophobic poly tetra fluoroethylene (PTFE) membranes were investigated. The intergranular force of particulate matter at different RH conditions was measured by analyzing the critical angle between particles. Effects of humidity (from 30% to 70%) on filtration pressure drop and membrane fouling conditions were characterized. It was found the membrane showed optimal filtration resistance of 530 Pa at RH of 60% and the gas permeance can be maintained at 1440 m3·m−2·h−1·kPa−1. Moreover, to optimize the operation parameters for this filtration system, effects of fly ash concentration, diameter, membrane pore size, and gas velocities were systematically investigated.

KW - Collapse angle

KW - Fly ash

KW - Poly tetra fluoroethylene (PTFE) membrane

KW - Pressure drop

KW - Relative humidity

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U2 - 10.1016/j.cjche.2021.05.017

DO - 10.1016/j.cjche.2021.05.017

M3 - 文章

AN - SCOPUS:85119917384

SN - 1004-9541

VL - 40

SP - 88

EP - 95

JO - Chinese Journal of Chemical Engineering

JF - Chinese Journal of Chemical Engineering

ER -

Humidity-control assists high-efficient coal fly ash removal by PTFE membrane

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