Scaling up and benchmarking of ethanol production from pelletized pilot scale AFEX treated corn stover using Zymomonas mobilis 8b

Cory Sarks, Bryan D. Bals, Jim Wynn, Farzaneh Teymouri, Stefan Schwegmann, Karyn Sanders, Mingjie Jin, Venkatesh Balan, Bruce E. Dale

Research output: Contribution to journalArticle

  • 2 Citations

Abstract

This report outlines the recent scale-up of AFEX pretreatment from the laboratory to pilot scale. Sugar yields were improved by 19 and 15% for glucose and xylose, respectively. Further improvement was achieved when scaling up the hydrolysis and fermentation of AFEX-treated corn stover to 2500 L working volume. Benchmarking was performed using CTec 3 and HTec 3 enzymes along with Zymomonas mobilis 8b. Subsequently, the seed train was modified to use a hydrolysate-based medium as a replacement for pure sugars and nutrients. Fermentation performance was comparable following this change. Economic analysis showed a 19% reduction in MESP for the new process over the previous benchmark process.

LanguageEnglish (US)
Pages1-15
Number of pages15
JournalBiofuels
DOIs
StateAccepted/In press - Jan 1 2016

Profile

benchmarking
Benchmarking
Sugars
Fermentation
fermentation
ethanol
sugar
Ethanol
maize
Xylose
Economic analysis
economic analysis
Nutrients
train
Glucose
Seed
hydrolysis
Hydrolysis
glucose
Enzymes

Keywords

  • AFEX
  • commercialization
  • hydrolysis
  • Pelletization
  • seed train

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Waste Management and Disposal

Cite this

Scaling up and benchmarking of ethanol production from pelletized pilot scale AFEX treated corn stover using Zymomonas mobilis 8b. / Sarks, Cory; Bals, Bryan D.; Wynn, Jim; Teymouri, Farzaneh; Schwegmann, Stefan; Sanders, Karyn; Jin, Mingjie; Balan, Venkatesh; Dale, Bruce E.

In: Biofuels, 01.01.2016, p. 1-15.

Research output: Contribution to journalArticle

Sarks C, Bals BD, Wynn J, Teymouri F, Schwegmann S, Sanders K et al. Scaling up and benchmarking of ethanol production from pelletized pilot scale AFEX treated corn stover using Zymomonas mobilis 8b. Biofuels. 2016 Jan 1;1-15. Available from, DOI: 10.1080/17597269.2015.1132368
Sarks, Cory ; Bals, Bryan D. ; Wynn, Jim ; Teymouri, Farzaneh ; Schwegmann, Stefan ; Sanders, Karyn ; Jin, Mingjie ; Balan, Venkatesh ; Dale, Bruce E./ Scaling up and benchmarking of ethanol production from pelletized pilot scale AFEX treated corn stover using Zymomonas mobilis 8b. In: Biofuels. 2016 ; pp. 1-15
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