Insights into nucleation and growth kinetics in seeded vacuum membrane distillation crystallization

doi:10.1016/j.memsci.2020.118813

	Insights into nucleation and growth kinetics in seeded vacuum membrane distillation crystallization
	Qu, Min 2; You, Shaowei 1; Wang, Li 1,3
刊名	JOURNAL OF MEMBRANE SCIENCE
	2021-02-15
卷号	620 页码:8
关键词	Vacuum membrane distillation crystallization Evaporation crystallization Seed Secondary nucleation
ISSN号	0376-7388
DOI	10.1016/j.memsci.2020.118813
英文摘要	A 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.
资助项目	Major 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关键词	FLUE-GAS DESULFURIZATION ; WASTE-WATER ; MAGNESIUM-SULFATE ; RECOVERY ; CRYSTAL ; DECOMPOSITION ; EVAPORATION ; OXIDATION ; BRINE ; SMDC
WOS研究方向	Engineering ; Polymer Science
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000609145900006
资助机构	Major 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
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/43306]
专题	中国科学院过程工程研究所
通讯作者	You, Shaowei
作者单位	1.Chinese Acad Sci, Inst Proc Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Beijing Originwater Technol Co Ltd, Beijing 101407, Peoples R China
推荐引用方式 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.