Effect of the Shape Factor as an Input Variable on the Extraction Process for a Reversing Continuous Countercurrent Extractor

Authors

  • Waigoon RITTIRUT School of Agricultural Technology, Walailak University, Nakhon Si Thammarat 80161
  • Chairat SIRIPATANA School of Engineering and Resources Management, Walailak University, Nakhon Si Thammarat 80161

Keywords:

Garcinia fruit, Garcinia atrovirridis, shape factor, countercurrent extraction, reversing extractor, backmixing-diffusion, concentration profile

Abstract

The effect of the shape factor on a reversing continuous countercurrent extraction process for concentration profiles is reported. Garcinia fruit was selected as a model solid while sucrose was used as soluble solid for the diffusion system. The results showed that a slab shape gave better results on the concentration profiles for both solid and liquid phases than those of the block shape. A better diffusion mass transfer in the slab shape leads to a better yield. The shape factor results were verified using a model solid system. The phenomena in reversing continuous countercurrent extraction process under steady-state conditions can be explained via a backmixing-diffusion model. The concentration profiles by model prediction corresponded well to those of measured data. Diffusivities which are available for simulation purposes were reported for different thicknesses and operating temperatures. The evaporation took place at an acceptable level for an open system according to the specified operating conditions.

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Published

2011-11-06

How to Cite

RITTIRUT, W., & SIRIPATANA, C. (2011). Effect of the Shape Factor as an Input Variable on the Extraction Process for a Reversing Continuous Countercurrent Extractor. Walailak Journal of Science and Technology (WJST), 7(2), 141–153. Retrieved from https://wjst.wu.ac.th/index.php/wjst/article/view/38

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Research Article

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