Recent process improvements for the afex process and resulting processing cost reductions

Elizabeth D. Newton, Bruce Dale, Seungdo Kim, Hasan Alizadeh, Lee R. Lynd, Mark Laser

Research output: ResearchConference contribution

Abstract

The Ammonia Fiber Explosion (AFEX) process has been shown to be an effective pretreatment for lignocellulosic biomass, but previous cost estimates developed for this process are based on outdated assumptions. Recent research has reduced overall ammonia requirements, reduced the ammonia concentrations required, and has also reduced the enzyme loadings needed to obtain high (over 90%) conversions of glucan and xylan to monomeric sugars. Capital and operating costs for a "stand alone" AFEX process based on these exciting new research results are presented and compared to previous cost estimates. The AFEX process is also considered as part of an overall biorefining system producing fuel ethanol from biomass and the cost of ethanol production is estimated and compared with previous results.

LanguageEnglish (US)
Title of host publicationAIChE Annual Meeting, Conference Proceedings
Pages11788
Number of pages1
StatePublished - 2005
Externally publishedYes
Event05AIChE: 2005 AIChE Annual Meeting and Fall Showcase - Cincinnati, OH, United States
Duration: Oct 30 2005Nov 4 2005

Other

Other05AIChE: 2005 AIChE Annual Meeting and Fall Showcase
CountryUnited States
CityCincinnati, OH
Period10/30/0511/4/05

Profile

Cost reduction
Ammonia
Processing
Explosions
Fibers
Costs
Biomass
Ethanol fuels
Fuel systems
Operating costs
Sugars
Ethanol
Enzymes
Xylans

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Newton, E. D., Dale, B., Kim, S., Alizadeh, H., Lynd, L. R., & Laser, M. (2005). Recent process improvements for the afex process and resulting processing cost reductions. In AIChE Annual Meeting, Conference Proceedings (pp. 11788)

Recent process improvements for the afex process and resulting processing cost reductions. / Newton, Elizabeth D.; Dale, Bruce; Kim, Seungdo; Alizadeh, Hasan; Lynd, Lee R.; Laser, Mark.

AIChE Annual Meeting, Conference Proceedings. 2005. p. 11788.

Research output: ResearchConference contribution

Newton, ED, Dale, B, Kim, S, Alizadeh, H, Lynd, LR & Laser, M 2005, Recent process improvements for the afex process and resulting processing cost reductions. in AIChE Annual Meeting, Conference Proceedings. pp. 11788, 05AIChE: 2005 AIChE Annual Meeting and Fall Showcase, Cincinnati, OH, United States, 10/30/05.
Newton ED, Dale B, Kim S, Alizadeh H, Lynd LR, Laser M. Recent process improvements for the afex process and resulting processing cost reductions. In AIChE Annual Meeting, Conference Proceedings. 2005. p. 11788.
Newton, Elizabeth D. ; Dale, Bruce ; Kim, Seungdo ; Alizadeh, Hasan ; Lynd, Lee R. ; Laser, Mark. / Recent process improvements for the afex process and resulting processing cost reductions. AIChE Annual Meeting, Conference Proceedings. 2005. pp. 11788
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