Polymeric hollow fiber membrane for cooling crystallization seeding:On the mechanism of induced nucleation based on thermal transfer

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外文摘要：Cooling crystallization is an important separation process and particuology technology that requires ac-curate nucleation control strategies.Herein,we introduced the polymeric hollow fiber membrane with proper thermal properties as the effective nucleation induction interface during cooling crystallization.The heterogeneous nucleation control mechanism was introduced based on classical nucleation theory and the thermal transfer process.Interfacial properties and the thermal conductivity of two kinds of polymeric membranes,polytetrafluoroethylene(PTFE)and polyethersulfone(PES),were measured and simulated with the developed model.These two membranes possessed different nucleation induction periods,nucleation rates and crystallization performances,which validated that the hollow fiber membrane module could effectively accelerate the nucleation process compared to conventional cooling crystalliza-tion owing to the shorter nucleation induction period and the reduced solution surface tension.Due to the higher hydrophobicity and the lower roughness of the membrane surface,the PTFE membrane possessed a more moderate performance in generating stable heterogeneous nucleation than the one of PES mem-brane.Thus,the adjustable membrane property enabled the hollow fiber membrane-assisted cooling crystallization to possess the accurate nucleation control and desired terminal particle products.

外文关键词：

Cooling crystallizationNucleationParticle processHollow fiber membraneInduction periodProcess control

作者：

Zeman He、Shaofu Du、Guanying Shao、Peiyu Li、Lei Sheng、Gaohong He、Xiaobin Jiang、Wu Xiao

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作者单位：

State Key Laboratory of Fine Chemicals,School of Chemical Engineering,Engineering Laboratory for Petrochemical Energy-efficient Separation Technology of Liaoning Province,Dalian University of Technology,Dalian 116024,China

基金：

National Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Key Research and Development Program of ChinaCentral Guidance on Local Science and Technology Development Fund of Liaoning ProvinceFundamental Research Fundamental Funds for the Central UniversitiesFundamental Research Fundamental Funds for the Central UniversitiesKey Research and Development Projects in Shandong Provinceassistance of DUT Instrumental Analysis Center

项目编号：

22021005223780412021YFC29013002023JH6/100100004DUT22LAB603DUT22QN2092022CXGC010303

出版年：

2024

DOI：

10.1016/j.partic.2023.12.014

颗粒学报(英文版)

中国颗粒学会　中国科学院过程工程研究所

颗粒学报(英文版)

CSTPCD

影响因子：0.632

ISSN：1674-2001

年,卷(期)：2024.91(8)