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Reactive-extraction of 2,3-butanediol from fermentation broth by propionaldehyde: Equilibrium and kinetic study
| Content Provider | Semantic Scholar |
|---|---|
| Author | Li, Yanjun Zhu, Jiawen Wu, Yanyang Liu, Jiaxian |
| Copyright Year | 2013 |
| Abstract | An effective process was developed to separate 2,3-butanediol (2,3-BD) from fermentation broth (FB) by reactive-extraction. Propionaldehyde (PRA) was used as reactant and reaction product 2-ethyl-4,5-dimethyl-1,3-dioxolane (EDD) acted as extractant. HCl was selected as catalyst. Appropriate conditions were obtained by experiment as follows: 10 °C, CHCl=0.2mol·L−1, two-stage cross-current extraction, reactant volume ratio (VPRA: VFB) for first stage and second stage is 0.10 and 0.05, respectively. The yield rate of 2,3-butanediol for the whole process can reach 90% w/w, and 2,3-butanediol in the final product can be more than 99% w/w. The novel process required less solution and especially had advantages in treating dilute fermentation broth. Furthermore, equilibrium and kinetic study were investigated on the reaction of propionaldehyde and 2,3-butanediol to provide basic data for process development. The results reveal that reaction enthalpy and activation energy of the reaction were −21.84±2.38 KJ·mol−1 and 51.97±2.84 KJ·mol−1, respectively. Kinetics was well described by pseudo-homogeneous model. |
| Starting Page | 73 |
| Ending Page | 81 |
| Page Count | 9 |
| File Format | PDF HTM / HTML |
| DOI | 10.1007/s11814-012-0145-6 |
| Volume Number | 30 |
| Alternate Webpage(s) | https://www.cheric.org/PDF/KJChE/KC30/KC30-1-0073.pdf |
| Alternate Webpage(s) | https://page-one.springer.com/pdf/preview/10.1007/s11814-012-0145-6 |
| Alternate Webpage(s) | https://doi.org/10.1007/s11814-012-0145-6 |
| Journal | Korean Journal of Chemical Engineering |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
