High efficiency bioethanol production from OPEFB using pilot pretreatment reactor

Minhee Han, Yule Kim, Seung Wook Kim, Gi Wook Choi

Research output: Contribution to journalArticle

38 Citations (Scopus)

Abstract

Background: Current ethanol production processes using crops such as corn and sugar cane are well established. However, the utilization of cheaper biomasses such as lignocellulose could make bioethanol more competitive with fossil fuels while avoiding the ethical concerns associated with using potential food resources. Results: Oil palm empty fruit bunches (OPEFB), a lignocellulosic biomass, was pretreated using NaOH to produce bioethanol. The pretreatment and enzymatic hydrolysis conditions were evaluated by response surface methodology (RSM). The optimal conditions were found to be 127.64 °C, 22.08 min, and 2.89 mol L-1 for temperature, reaction time, and NaOH concentration, respectively. Regarding enzymatic digestibility, 50 FPU g-1 cellulose of cellulase was selected as the test concentration, resulting in a total glucose conversion rate (TGCR) of 86.37% using the Changhae Ethanol Multi Explosion (CHEMEX) facility. Fermentation of pretreated OPEFB using Saccharomyces cerevisiae resulted in an ethanol concentration of 48.54 g L-1 at 20% (w/v) pretreated biomass loading, along with simultaneous saccharification and fermentation (SSF) processes. Overall, 410.48 g of ethanol were produced from 3 kg of raw OPEFB in a single run, using the CHEMEX-50 L reactor. Conclusion: The results presented here constitute a significant contribution to the production of bioethanol from OPEFB.

Original languageEnglish
Pages (from-to)1527-1534
Number of pages8
JournalJournal of Chemical Technology and Biotechnology
Volume86
Issue number12
DOIs
Publication statusPublished - 2011 Dec 1

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Bioethanol
Palm oil
Fruits
ethanol
Fruit
Oils
Ethanol
fruit
oil
Biomass
Explosions
Fermentation
fermentation
explosion
biomass
Fossil Fuels
Sugar cane
Saccharification
Canes
Enzymatic hydrolysis

Keywords

  • Changhae Ethanol Multi Explosion (CHEMEX)
  • Enzymatic hydrolysis
  • Fermentation
  • Oil palm empty fruit bunches (OPEFB)
  • Response surface methodology (RSM)

ASJC Scopus subject areas

  • Inorganic Chemistry
  • Waste Management and Disposal
  • Pollution
  • Organic Chemistry
  • Renewable Energy, Sustainability and the Environment
  • Biotechnology
  • Chemical Engineering(all)
  • Fuel Technology

Cite this

High efficiency bioethanol production from OPEFB using pilot pretreatment reactor. / Han, Minhee; Kim, Yule; Kim, Seung Wook; Choi, Gi Wook.

In: Journal of Chemical Technology and Biotechnology, Vol. 86, No. 12, 01.12.2011, p. 1527-1534.

Research output: Contribution to journalArticle

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