CAS OpenIR
The adsorption properties of NaY zeolite for separation of ethylene glycol and 1,2-butanediol: Experiment and molecular modelling
Xiong, Pei1,2; He, Peng2,6; Qu, Yixin1; Wang, Liguo2,3,4,6; Cao, Yan2; Xu, Shuang2; Chen, Jiaqiang2; Ammar, Muhammad7; Li, Huiquan2,3,4,5
2021-02-01
Source PublicationGREEN ENERGY & ENVIRONMENT
ISSN2096-2797
Volume6Issue:1Pages:102-113
AbstractThe separation of ethylene glycol (EG) and 1,2-butanediol (1,2-BDO) azeotrope in the synthesis process of EG via coal and biomass is becoming of increasing commercial and environmental importance. Selective adsorption is deemed as the most promising methods because of energy saving and environment favorable. In this paper, NaY zeolite was used to separate 1,2-BDO from EG, and its adsorption properties was then investigated. The isotherms of EG and 1,2-BDO in vapor and liquid phases from 298 to 328 K indicated that they fitted Langmuir model quite well, and the NaY zeolite absorbent favored EG more than 1,2-BDO. The Grand Canonical Monte Carlo (GCMC) and molecular dynamics (MD) simulation techniques were conducted to investigate the competition adsorption and diffusion characteristics in different adsorption regions. It was observed that EG and 1,2-BDO molecules all have the most probable locations of the center of the 12-membered ring near the Na cations. The diffusivities of EG are lower than those of 1,2-BDO at the same adsorption concentration. At last, the breakthrough curves of the binary mixture regressed from the empirical Dose-Response model in fixed-bed column showed that the adsorption selectivity of EG could reach to as high as 2.43, verified that the NaY zeolite could effectively separate EG from 1,2-BDO. This work is also helpful for further separation of other dihydric alcohol mixtures from coal and biomass fermentation. (C) 2020, Institute of Process Engineering, Chinese Academy of Sciences. Publishing services by Elsevier B.V. on behalf of KeAi Communications Co., Ltd.
KeywordAdsorption mechanism Ethylene glycol (EG) 1,2-Butanediol (1,2-BDO) NaY zeolite Fixed-bed column tests
DOI10.1016/j.gee.2019.12.006
Language英语
WOS KeywordFAUJASITE SYSTEMS ; ACTIVATED CARBON ; METHANOL ; DIFFUSION ; REMOVAL ; 1,2-PROPANEDIOL ; EQUILIBRIUM ; BUTANEDIOL ; DYNAMICS ; BENZENE
Funding ProjectNational Natural Science Foundation of China[21576272] ; "Transformational Technologies for Clean Energy and Demonstration", Strategic Priority Research Program of Chinese Academy of Sciences[XDA 21030600] ; Science and Technology Service Network Initiative, Chinese Academy of Sciences[KFJ-STS-QYZD-138]
WOS Research AreaChemistry ; Science & Technology - Other Topics ; Energy & Fuels ; Engineering
WOS SubjectChemistry, Physical ; Green & Sustainable Science & Technology ; Energy & Fuels ; Engineering, Chemical
Funding OrganizationNational Natural Science Foundation of China ; "Transformational Technologies for Clean Energy and Demonstration", Strategic Priority Research Program of Chinese Academy of Sciences ; Science and Technology Service Network Initiative, Chinese Academy of Sciences
WOS IDWOS:000652364100012
PublisherKEAI PUBLISHING LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/48775
Collection中国科学院过程工程研究所
Corresponding AuthorHe, Peng; Li, Huiquan
Affiliation1.Beijing Univ Chem Technol, Coll Chem Engn, Beijing 100029, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, CAS Key Lab Green Proc & Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Beijing 100190, Peoples R China
3.Univ Chinese Acad Sci, Sino Danish Coll, Beijing 100049, Peoples R China
4.Univ Chinese Acad Sci, Sino Danish Ctr Educ & Res, Beijing 10049, Peoples R China
5.Univ Chinese Acad Sci, Sch Chem Engn, Beijing 100049, Peoples R China
6.Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China
7.Govt Coll Univ, Dept Chem Engn Technol, Faisalabad 38000, Pakistan
Recommended Citation
GB/T 7714
Xiong, Pei,He, Peng,Qu, Yixin,et al. The adsorption properties of NaY zeolite for separation of ethylene glycol and 1,2-butanediol: Experiment and molecular modelling[J]. GREEN ENERGY & ENVIRONMENT,2021,6(1):102-113.
APA Xiong, Pei.,He, Peng.,Qu, Yixin.,Wang, Liguo.,Cao, Yan.,...&Li, Huiquan.(2021).The adsorption properties of NaY zeolite for separation of ethylene glycol and 1,2-butanediol: Experiment and molecular modelling.GREEN ENERGY & ENVIRONMENT,6(1),102-113.
MLA Xiong, Pei,et al."The adsorption properties of NaY zeolite for separation of ethylene glycol and 1,2-butanediol: Experiment and molecular modelling".GREEN ENERGY & ENVIRONMENT 6.1(2021):102-113.
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