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Titolo:
Economic analysis of fuel ethanol production from corn starch using fluidized-bed bioreactors
Autore:
Krishnan, MS; Taylor, F; Davison, BH; Nghiem, NP;
Indirizzi:
Oak Ridge Natl Lab, Div Chem Technol, Oak Ridge, TN 37831 USA Oak Ridge Natl Lab Oak Ridge TN USA 37831 echnol, Oak Ridge, TN 37831 USA USDA, Eastern Reg Res Ctr, Wyndmoor, PA 19038 USA USDA Wyndmoor PA USA 19038 A, Eastern Reg Res Ctr, Wyndmoor, PA 19038 USA
Titolo Testata:
BIORESOURCE TECHNOLOGY
fascicolo: 2, volume: 75, anno: 2000,
pagine: 99 - 105
SICI:
0960-8524(200011)75:2<99:EAOFEP>2.0.ZU;2-J
Fonte:
ISI
Lingua:
ENG
Soggetto:
ZYMOMONAS-MOBILIS;
Keywords:
fuel ethanol; fluidized-bed bioreactors; immobilization; economic analysis;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
12
Recensione:
Indirizzi per estratti:
Indirizzo: Nghiem, NP Oak Ridge Natl Lab, Div Chem Technol, POB 2008, Oak Ridge, TN 37831 USA Oak Ridge Natl Lab POB 2008 Oak Ridge TN USA 37831 TN 37831 USA
Citazione:
M.S. Krishnan et al., "Economic analysis of fuel ethanol production from corn starch using fluidized-bed bioreactors", BIORES TECH, 75(2), 2000, pp. 99-105

Abstract

The economics of fuel ethanol production from dry-milled corn starch were studied in fluidized-bed bioreactors (FBRs) using immobilized biocatalysts. Glucoamylase immobilized on porous diatomaceous earth was used for hydrolysis of the starch to glucose in a packed-bed reactor. The fermentation of glucose to ethanol was carried out in FBRs using Zymomonas mobilis immobilized in kappa-carageenan beads. Volumetric ethanol productivities of up to 24g/l h were achieved in non-optimized laboratory-scale systems. For a 15 million gal/yr ethanol plant, an economic analysis of this process was performed with Aspen Plus (Aspen Technology, Cambridge, MA) process simulation software. The analysis shows that an operating cost savings in the range of 1.1-3.1 cents/gal can be realized by using the FBR technology. (C) 2000 Elsevier Science Ltd. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 24/01/20 alle ore 16:09:45