Knowledge Management System Of Institute of process engineering,CAS
| Separation of Benzene-Cyclohexane Azeotropes Via Extractive Distillation Using Deep Eutectic Solvents as Entrainers | |
Bai, Fang1,2,3 ; Hua, Chao1,3; Li, Jing1,2,3
| |
| 2021-02-01 | |
| Source Publication | PROCESSES
 |
| Volume | 9Issue:2Pages:13 |
| Abstract | The separation of benzene and cyclohexane azeotrope is one of the most challenging processes in the petrochemical industry. In this paper, deep eutectic solvents (DES) were used as solvents for the separation of benzene and cyclohexane. DES1 (1:2 mix of tetrabutylammonium bromide (TBAB) and levulinic acid (LA)), DES2 (1:2 mix of TBAB and ethylene glycol (EG)) and DES3 (1:2 mix of ChCl (choline chloride) and LA) were used as entrainers, and vapor-liquid equilibrium (VLE) measurements at atmospheric pressure revealed that a DES comprised of a 2:1 ratio of LA and TBAB could break this azeotrope with relative volatility (alpha ij) up to 4.763. Correlation index suggested that the NRTL modelling approach fitted the experimental data very well. Mechanism of extractive distillation gained from FT-IR revealed that with hydrogen bonding and pi-pi bond interactions between levulinic acid and benzene could be responsible for the ability of this entrainer to break the azeotrope. |
| Keyword | benzene cyclohexane deep eutectic solvents (DES) extractive distillation entrainer |
| DOI | 10.3390/pr9020336 |
| Language | 英语 |
| Funding Project | National Key Research and Development Program of China[2019YFC1907600] |
| WOS Research Area | Engineering |
| WOS Subject | Engineering, Chemical |
| Funding Organization | National Key Research and Development Program of China |
| WOS ID | WOS:000623172400001 |
| Publisher | MDPI |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.ipe.ac.cn/handle/122111/43540 |
| Collection | 中国科学院过程工程研究所 |
| Corresponding Author | Hua, Chao |
| Affiliation | 1.Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Sch Chem & Engn, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Innovat Acad Green Manufacture, Beijing 100190, Peoples R China |
| Recommended Citation GB/T 7714 | Bai, Fang,Hua, Chao,Li, Jing. Separation of Benzene-Cyclohexane Azeotropes Via Extractive Distillation Using Deep Eutectic Solvents as Entrainers[J]. PROCESSES,2021,9(2):13. |
| APA | Bai, Fang,Hua, Chao,&Li, Jing.(2021).Separation of Benzene-Cyclohexane Azeotropes Via Extractive Distillation Using Deep Eutectic Solvents as Entrainers.PROCESSES,9(2),13. |
| MLA | Bai, Fang,et al."Separation of Benzene-Cyclohexane Azeotropes Via Extractive Distillation Using Deep Eutectic Solvents as Entrainers".PROCESSES 9.2(2021):13. |
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