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首页> 外文期刊>Biofuels, bioproducts & biorefining: Biofpr >Large-scale commercial production of cellulosic ethanol from agricultural residues: A case study of wheat straw in the Canadian Prairies
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Large-scale commercial production of cellulosic ethanol from agricultural residues: A case study of wheat straw in the Canadian Prairies

机译：农业残留物中纤维素乙醇的大规模商业生产 - 以加拿大大草原麦秸进行案例研究

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摘要

This paper provides a business case for a large-scale wheat-straw-based cellulosic ethanol plant in the Canadian Prairies. Feedstock availability and costs were quantified for 11 locations representing the region's agroecological soil zones. The economic feasibility of the cellulosic ethanol plant was evaluated using SuperPro Designer (R) based on simultaneous saccharification and cofermentation process. Total capital investment is approximately $90-$200 million for corresponding plant with capacities of 69-208 million liters annum(-1). The lowest operating costs are associated with high volume biomass locations such as Yorkton, Lanigan, and Weyburn. A range of discount rates (7-15%), ethanol selling price ($1.00-$1.70 L-1), and feedstock cost ($35-70 tonne(-1)) was used to assess the sensitivity of plant profitability (NPV) to changes in these parameters. Average total cost of ethanol production decreased with increasing plant size, from $0.90 L-1 in a small ethanol plant to $0.66 L-1 for plant capacity higher than 125 million L. The sensitivity analysis showed better economies of scale for larger plants, with marginal costs and average cost curves suggesting that Canadian Prairies could support a cellulosic ethanol plant capacity of 250 million L annum(-1) at a single location. Yorkton, Melfort, Weyburn, Prince Albert, and Lanigan generate positive NPV over a wider range of annual plant capacities (138-208 million L). Swift Current, Rosetown, and Kindersley have the lowest NPV, associated with their low straw density and correspondingly higher transportation costs. (c) 2017 Her Majesty the Queen in Right of Canada Biofuels, Bioproducts and Biorefining (c) 2017 Society of Chemical Industry and John Wiley & Sons, Ltd
机译：本文为加拿大大草原的大型小麦秸秆基纤维素植物提供了一个商业案例。为该地区农产病土壤区的11个地点量化了原料可用性和成本。基于同时糖化和成型工艺使用Superpro Designer（R）评估纤维素乙醇植物的经济可行性。相应工厂的总资本投资大约为90-2亿美元，具有6.9-208万升的能力（-1）。最低的运营成本与大量生物量位置相关联，例如Yorkton，Lanigan和Weyburn。一系列折扣率（7-15％），乙醇销售价格（1.00- $ 1.70 L-1）和原料成本（35-70吨（-1美元））用于评估植物盈利能力（NP​​V）的敏感性这些参数的变化。植物尺寸的增加，乙醇产量的平均总成本降低，植物大量0.90 L-1，植物能力为0.66 L-1，植物能力高于1.5亿万吨。敏感性分析显示出较大的植物的更好规模经济，具有边缘成本和平均成本曲线表明加拿大大草原可以在一个位置支持纤维素乙醇植物容量为2.5亿吨（-1）。 Yorkton，Melfort，Weyburn，Albert王子和Lanigan在更广泛的年度植物容量（138-208万升）范围内产生阳性NPV。 Swift Current，Rosetown和Kindersley具有最低的NPV，与秸秆密度低，交通成本相应较高。 （c）2017年陛下在加拿大生物燃料，生物化学素，生物化学和生物化的女王（C）2017年化学工业协会和约翰瓦里和儿子，Ltd

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