Impurities formed from ethanol fermentation process among different materials and it′s effective separation in large scale

대규모의 주정발효 과정에서 생성된 불순물과 그 효율적 분리

  • 류병호 (부산산업대학교 이공대학 식품공학과) ;
  • 김운식 (일산실업 주식회사 부산주정공장) ;
  • 남기두 (일산실업 주식회사 부산주정공장) ;
  • 이인기 (일산실업 주식회사 부산주정공장) ;
  • 하미숙 (부산산업대학교 이공대학 식품공학과)
  • Published : 1986.10.01

Abstract

This study to elucidate concentrations of impurities such as methanol and fusel oil formed during fermentation process among the different materials and has been applied technical seperation for processing improvement by continuous distillation of super-allospas type. Methanol was formed high concentrations of cutting dried sweet potato and tapioca in order among the different materials during fermentation process. n-Propanol oil was formed high concentration of rice, cutting dried sweet potato, corn, naked barley and tapioca in order among the those materials. I-Buthanol showed high concentration of tapioca, corn, rice, cutting dried sweet potato and naked barley in order and isoamyl-alcohol showed high concentration of tapioca, rice, cutting dried sweet potato, corn and naked barley in order. Using the continuous distillation of super-allospas type, the following are collection ratios of n-propanol, iso-butanol, n-butanol and iso-amylalcohol: 37.9%, 28.6%, 37.4%, and 56.1% when 78.25% (v/v), 68.54% (viv), 50.0% (viv), and 50.0% (v/v) alcohol are used, respectively. Fusel oil and bad alcohol put into the recovery column and then seperated directly by side cut of fusel oil partially from plate of tower bottom after concentration again. Extra impurities seperated by fusel oil seperator when 20 % (v/v) alcohol adjusted with water.

Keywords

Fusel oil;Super-allospas type;Side cut;Plate