CAS OpenIR
Insights into nucleation and growth kinetics in seeded vacuum membrane distillation crystallization
Qu, Min3; You, Shaowei1; Wang, Li1,2
2021-02-15
Source PublicationJOURNAL OF MEMBRANE SCIENCE
ISSN0376-7388
Volume620Pages:8
AbstractA seeded vacuum membrane distillation crystallization (VMDC) process for treating magnesium sulfate solution was proposed. The permeate flux was investigated with respect to feed inlet temperature, vacuum pressure and feed velocity in order to determine operating conditions of VMDC. For the VMDC, the inlet and outlet temperatures of membrane distillation were maintained at 84 degrees C and 68 degrees C respectively, and the vacuum was 0.04-0.07 MPa. The nucleation and growth kinetics with the presence of seed in VMDC were investigated by comparison with the evaporation crystallization. Crystal nucleation and growth rates in evaporation crystallization and VMDC were both calculated using the population balance equation. It was found that the crystal growth rate in VMDC was slightly less than that in evaporation crystallization. Compared with evaporation crystallization, the secondary nucleation rate in VMDC was reduced due to the decrease of collision frequency between crystals.
KeywordVacuum membrane distillation crystallization Evaporation crystallization Seed Secondary nucleation
DOI10.1016/j.memsci.2020.118813
Language英语
WOS KeywordFLUE-GAS DESULFURIZATION ; WASTE-WATER ; MAGNESIUM-SULFATE ; RECOVERY ; CRYSTAL ; DECOMPOSITION ; EVAPORATION ; OXIDATION ; BRINE ; SMDC
Funding ProjectMajor Scientific and Technological Innovation Project of Shandong Province, China[2019JZZY010405] ; National Natural Science Foundation of China[21908230] ; Tianjin Science and Technology Project[18YFYSZCO0170] ; Henan Transfer Project of CAS Scientific and Technological Achievements[2019103]
WOS Research AreaEngineering ; Polymer Science
WOS SubjectEngineering, Chemical ; Polymer Science
Funding OrganizationMajor Scientific and Technological Innovation Project of Shandong Province, China ; National Natural Science Foundation of China ; Tianjin Science and Technology Project ; Henan Transfer Project of CAS Scientific and Technological Achievements
WOS IDWOS:000609145900006
PublisherELSEVIER
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Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/43307
Collection中国科学院过程工程研究所
Corresponding AuthorYou, Shaowei
Affiliation1.Chinese Acad Sci, Inst Proc Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China
2.Beijing Originwater Technol Co Ltd, Beijing 101407, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Qu, Min,You, Shaowei,Wang, Li. Insights into nucleation and growth kinetics in seeded vacuum membrane distillation crystallization[J]. JOURNAL OF MEMBRANE SCIENCE,2021,620:8.
APA Qu, Min,You, Shaowei,&Wang, Li.(2021).Insights into nucleation and growth kinetics in seeded vacuum membrane distillation crystallization.JOURNAL OF MEMBRANE SCIENCE,620,8.
MLA Qu, Min,et al."Insights into nucleation and growth kinetics in seeded vacuum membrane distillation crystallization".JOURNAL OF MEMBRANE SCIENCE 620(2021):8.
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