4.5 Article

Nth-plant supply: corn stover supplies and costs in a fleet of biorefineries

期刊

BIOFUELS BIOPRODUCTS & BIOREFINING-BIOFPR
卷 16, 期 1, 页码 204-218

出版社

WILEY
DOI: 10.1002/bbb.2305

关键词

biomass resources; biomass feedstocks; biomass logistics; biomass supply risks; biomass depots

资金

  1. US Department of Energy's Office of Energy Efficiency and Renewable Energy (EERE) Bioenergy Technologies Office (BETO) [DE-AC05-00OR22725]

向作者/读者索取更多资源

The study examines the changes in feedstock cost and cost variability of an industry based on corn stover with increasing number of biorefineries. Results show that price is most sensitive to harvest efficiency, with about half of the US corn stover resource reliably available with minimum cost increase and variability under conventional logistics.
Feedstock cost and cost variability is expected to increase with the number of biorefineries. To quantify this effect, this spatial-economic analysis simulates feedstock cost and cost variability of an industry based on corn stover as a function of the number of biorefineries. Results are reported for nine scenarios (a base case and sensitivity analysis of four variables - harvest efficiency, sustainability constraints, opportunity cost, and corn grain yield) under deterministic and stochastic simulations, assuming biorefineries using 658 000 Mg (725 000 tons) year(-1) of corn stover in 2019. The resulting supply curves are highly elastic (i.e. little change in cost) for the first 50 of the 121 biorefineries, with price increases in subsequent biorefineries depending on scenario. In the base-case deterministic scenario, weighted-average stover costs are $66 Mg-1 ($60 ton(-1)), $69 Mg-1 ($62 ton(-1)), and $156 Mg-1 ($142 ton(-1)), at the first, 60th, and 121st biorefineries, respectively. The stochastic simulations, subject to observed 30-year corn yield variability, follow a similar pattern, with price distributions that vary by scenario. The base-case stochastic simulations illustrate minimal cost variability for the first 60 biorefineries, but rapid increases in cost variability in the second half of potential biorefineries, with similar patterns observed in the other scenarios. Of the four variables explored, price was most sensitive to harvest efficiency, followed by sustainability constraints, corn yield, and opportunity cost. Results suggest that, under conventional logistics, about half of the US corn stover resource is reliably available with minimum cost increase and variability. (c) 2021 Society of Chemical Industry and John Wiley & Sons, Ltd

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.5
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据