Abstract
A new process for conversion of sugarcane bagasse to ethanol was analyzed for production costs and energy consumption using experimental results. The process includes a sequential three-stage deacetylation, hot water, and disk-refining pretreatment and a commercial glucose-xylose fermenting S. cerevisiae strain. The simultaneous saccharification and co-fermentation (SScF) step used was investigated at two solids loadings: 10% and 16% w/w. Additionally, a sensitivity analysis was conducted for the major operating parameters. The minimum ethanol selling price (MESP) varied between $4.91and $4.52/gal ethanol. The higher SScF solids loading (16%) reduced the total operating, utilities, and production costs by 9.5%, 15.6%, and 5.6%, respectively. Other important factors in determining selling price were costs for fermentation medium and enzymes (e.g., cellulases). Hence, these findings support operating at high solids and producing enzymes onsite as strategies to minimize MESP.
| Original language | English (US) |
|---|---|
| Article number | 642 |
| Journal | Processes |
| Volume | 7 |
| Issue number | 10 |
| DOIs | |
| State | Published - Sep 20 2019 |
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Keywords
- Minimum ethanol selling price
- Production cost
- Sequential three-stage pretreatment
- Simultaneous saccharification and co-fermentation (SScF)
- sugarcane bagasse
ASJC Scopus subject areas
- Bioengineering
- Chemical Engineering (miscellaneous)
- Process Chemistry and Technology
Cite this
Economic Analysis of Cellulosic Ethanol Production from Sugarcane Bagasse Using a Sequential Deacetylation, Hot Water and Disk-Refining Pretreatment. / Cheng, Ming Hsun; Wang, Zhaoqin; Dien, Bruce S.; Slininger, Patricia J.W.; Singh, Vijay.
In: Processes, Vol. 7, No. 10, 642, 20.09.2019.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Economic Analysis of Cellulosic Ethanol Production from Sugarcane Bagasse Using a Sequential Deacetylation, Hot Water and Disk-Refining Pretreatment
AU - Cheng, Ming Hsun
AU - Wang, Zhaoqin
AU - Dien, Bruce S.
AU - Slininger, Patricia J.W.
AU - Singh, Vijay
PY - 2019/9/20
Y1 - 2019/9/20
N2 - A new process for conversion of sugarcane bagasse to ethanol was analyzed for production costs and energy consumption using experimental results. The process includes a sequential three-stage deacetylation, hot water, and disk-refining pretreatment and a commercial glucose-xylose fermenting S. cerevisiae strain. The simultaneous saccharification and co-fermentation (SScF) step used was investigated at two solids loadings: 10% and 16% w/w. Additionally, a sensitivity analysis was conducted for the major operating parameters. The minimum ethanol selling price (MESP) varied between $4.91and $4.52/gal ethanol. The higher SScF solids loading (16%) reduced the total operating, utilities, and production costs by 9.5%, 15.6%, and 5.6%, respectively. Other important factors in determining selling price were costs for fermentation medium and enzymes (e.g., cellulases). Hence, these findings support operating at high solids and producing enzymes onsite as strategies to minimize MESP.
AB - A new process for conversion of sugarcane bagasse to ethanol was analyzed for production costs and energy consumption using experimental results. The process includes a sequential three-stage deacetylation, hot water, and disk-refining pretreatment and a commercial glucose-xylose fermenting S. cerevisiae strain. The simultaneous saccharification and co-fermentation (SScF) step used was investigated at two solids loadings: 10% and 16% w/w. Additionally, a sensitivity analysis was conducted for the major operating parameters. The minimum ethanol selling price (MESP) varied between $4.91and $4.52/gal ethanol. The higher SScF solids loading (16%) reduced the total operating, utilities, and production costs by 9.5%, 15.6%, and 5.6%, respectively. Other important factors in determining selling price were costs for fermentation medium and enzymes (e.g., cellulases). Hence, these findings support operating at high solids and producing enzymes onsite as strategies to minimize MESP.
KW - Minimum ethanol selling price
KW - Production cost
KW - Sequential three-stage pretreatment
KW - Simultaneous saccharification and co-fermentation (SScF)
KW - sugarcane bagasse
UR - http://www.scopus.com/inward/record.url?scp=85074225679&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85074225679&partnerID=8YFLogxK
U2 - 10.3390/pr7100642
DO - 10.3390/pr7100642
M3 - Article
VL - 7
JO - Processes
JF - Processes
SN - 2227-9717
IS - 10
M1 - 642
ER -