Abstract
The goal of this paper is to evaluate the economic performance of co-located corn grain ethanol (Gen 1) and cellulosic ethanol (Gen 2) facilities. We present six scenarios to evaluate the impact of stover-to-grain mass (SGM) ratios on overall minimum ethanol selling price (MESP). For the Gen 1 plant, MESP is $3.18/ gasoline gallon equivalent (GGE) while for the Gen 2 plant it is $5.64/GGE. Co-located Gen 1 and Gen 2 plants operating at the lowest SGM ratio of 0.4 generates the lowest overall MESP of $3.73/GGE as well as the highest MESP for cellulosic ethanol of $7.85/GGE. Co-located plants operating at the highest SGM ratio of 1.0 achieve the highest overall MESP of $3.94/GGE as well as the lowest MESP for cellulosic ethanol of $5.47/GGE. Sensitivity analysis shows that the prices of feedstocks have the greatest impact on the overall MESP.
| Original language | English |
|---|---|
| Pages (from-to) | 412-422 |
| Number of pages | 11 |
| Journal | Biofuels, Bioproducts and Biorefining |
| Volume | 8 |
| Issue number | 3 |
| DOIs | |
| State | Published - 2014 |
Keywords
- Cellulosic ethanol
- Co-located plants
- Corn grain
- Corn stover
- Ethanol
- Techno-economic analysis
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