Journal of Advanced Chemical Engineering

Akio Watanabe

Publications

• Research Article
  Phase Equilibrium Measurement of n-Butane/Water/n-Butanol System for Development of an Energy-Saving Biobutanol Extraction Process
  Author(s): Hiroshi Machida, Akio Watanabe and Hirotoshi HorizoeHiroshi Machida, Akio Watanabe and Hirotoshi Horizoe
  
  The application of biobutanol as an alternative fuel has numerous advantages compared to bioethanol, such as high heating value, low moisture absorption, and low corrosion, although biobutanol requires a high dehydration energy because of its low initial concentration (approximately 1-3 wt%). To develop energy-saving dehydration process using light hydrocarbon extraction, butane solvent was selected as a suitable solvent because of their properties like no azeotropic point or high butanol solubility. Phase equilibrium data of an n-butane/water/n-butanol system were determined using apparatus for high-pressure phase equilibrium measurements and NRTL model parameters were regressed. The proposed process for butanol dehydration consist the extraction column and distillation column. In the extraction column, butanol is concentrated to 90%, after which butane and butanol are separated in t.. View More»
  DOI: 10.4172/2090-4568.1000187

  Abstract PDF