US EPA

4829055 

Journal Article 

Hydrodynamics and Transport Processes during Centrifugal Short-Path Distillation 

Chen, LiJun; Dong, HaiBo; Li, Qi; Niu, CC; Zeng, AiWu 

2013 

Yes 

Chemical Engineering and Technology
ISSN: 0930-7516
EISSN: 1521-4125 

36 

5 

851-862 

10.1002/ceat.201200091 

WOS:000318173600022 

To simulate the centrifugal short-path distillation process, both two phases and interfacial transport are taken into account simultaneously for the first time. A new computational fluid dynamics model based on the volume-of-fluid and species transport methods is built up to analyze the detailed flow and transfer characteristics. A binary system with dibutyl phthalate-dibutyl sebacate (DBP-DBS) is used as an example for the investigation with both numerical and experimental methods. The residence time and the effects of operating parameters such as evaporator temperature and feed flow rate are explored comparatively. The simulation result for the liquid-film thickness shows a satisfactory agreement with literature data. On the basis of the simulation results, we may also obtain detailed characteristics of the heat and mass transfer such as gradients in temperature and concentration and the liquid overall mass transfer coefficient. 

Computational fluid dynamics; Heat transfer; Hydrodynamics; Mass transfer; Short-path distillation