Continuous Ethanol Fermentation Using Starchy Raw Material in Pilot Scale Multi-stage CSTR

Pilot Scal Multi-stage CSTR에서 전분질 원료의 연속 에탄올발효

  • 남기두 (일산실업㈜ 부산주정공장 연구실) ;
  • 이인기 (일산실업㈜ 부산주정공장 연구실) ;
  • 조훈호 (일산실업㈜ 부산주정공장 연구실) ;
  • 최명호 (일산실업㈜ 부산주정공장 연구실) ;
  • 김운식 (일산실업㈜ 부산주정공장 연구실)
  • Published : 1992.06.01

Abstract

In order to develop more economic processes, continuous ethanol fermentation from starchy raw materials in a pilot scale multi-stage CSTR was investigated. Ethanol fermentation could be successfully operated for 30 days with naked barley and 60 days with cassava, respectively. Starchy raw materials used for this study were ground and passed through a 20-mesh sieve for low temperature cooking. Under the optimized conditions, the overall productivity of cassava was $1.27g/{\ell}{\cdot}h$ with an ethanol concentration of 9.51% (v/v), which was higher about 2 times than that obtained from a conventional batch system in industrial scale.

Keywords

Ethanol fermentation;multi-stage CSTR;naked barley;cassava;pre-cooking