Life-cycle greenhouse gas emissions of corn kernel fiber ethanol
Qin, Z; Li, Q; Wang, M; Han, J; Dunn, JB
| HERO ID | 5064427 |
|---|---|
| In Press | No |
| Year | 2018 |
| Title | Life-cycle greenhouse gas emissions of corn kernel fiber ethanol |
| Authors | Qin, Z; Li, Q; Wang, M; Han, J; Dunn, JB |
| Journal | Biofuels, Bioproducts and Biorefining |
| Volume | 12 |
| Issue | 6 |
| Page Numbers | 1013-1022 |
| Abstract | Corn kernel fiber ethanol that can be produced concurrently with corn starch ethanol has recently been approved as cellulosic biofuel in the USA, suggesting that fiber ethanol could be eligible for a higher credit price than conventional starch ethanol due to its anticipated lower greenhouse gas (GHG) emissions. A life-cycle analysis was conducted to quantify ethanols GHG emissions. Here we show that fiber ethanols life-cycle GHG emissions (36-39 g CO(2)e MJ(-1)) are close to meeting the US cellulosic biofuels legislative mandate of 60% GHG emissions reduction relative to gasoline (similar to 94 g CO(2)e MJ(-1)), with slightly lower emissions under the nth plant mature fiber technology than under the state of technology (SOT). The co-product, distillers grain with solubles (DGS), can notably affect fiber ethanols GHG emissions, and this impact may need to be further examined when evidence of DGS market impacts becomes available. (c) 2018 Society of Chemical Industry and John Wiley & Sons, Ltd |
| Doi | 10.1002/bbb.1916 |
| Wosid | WOS:000450612100007 |
| Url | https://onlinelibrary.wiley.com/doi/10.1002/bbb.1916 |
| Is Certified Translation | No |
| Dupe Override | No |
| Is Public | Yes |
| Keyword | biofuel; corn fiber ethanol; distiller's grain with solubles; life cycle analysis |