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首页> 外文期刊>Biofuels, bioproducts & biorefining: Biofpr >Investigation of thermochemical biorefinery sizing and environmental sustainability impacts for conventional supply system and distributed pre-processing supply system designs
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Investigation of thermochemical biorefinery sizing and environmental sustainability impacts for conventional supply system and distributed pre-processing supply system designs

机译：传统供应系统和分布式预加工供应系统设计的热化学生物美食尺寸和环境可持续性影响的研究

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The 2011 US Billion-Ton Update estimates that by 2030 there will be enough agricultural and forest resources to sustainably provide at least one billion dry tons of biomass annually, enough to displace approximately 30% of the country's current petroleum consumption. A portion of these resources are inaccessible at current cost targets with conventional feedstock supply systems because of their remoteness or low yields. Reliable analyses and projections of US biofuels production depend on assumptions about the supply system and biorefinery capacity, which, in turn, depend upon economic value, feedstock logistics, and sustainability. A cross-functional team has examined combinations of advances in feedstock supply systems and biorefinery capacities with rigorous design information, improved crop yield and agronomic practices, and improved estimates of sustainable biomass availability. A previous report on biochemical refinery capacity noted that under advanced feedstock logistic supply systems that include depots and pre-processing operations there are cost advantages that support larger biorefineries up to 10 000 DMT/day facilities compared to the smaller 2000 DMT/day facilities. This report focuses on analyzing conventional versus advanced depot biomass supply systems for a thermochemical conversion and refinery sizing based on woody biomass. The results of this analysis demonstrate that the economies of scale enabled by advanced logistics offsets much of the added logistics costs from additional depot processing and transportation, resulting in a small overall increase to the minimum ethanol selling price compared to the conventional logistic supply system. While the overall costs do increase slightly for the advanced logistic supply systems, the ability to mitigate moisture and ash in the system will improve the storage and conversion processes. In addition, being able to draw on feedstocks from further distances will decrease the risk of biomass supply to the conversion facility. (C) 2014 The Authors. Biofuels, Bioproducts, Biorefining published by Society of Chemical Industry and John Wiley & Sons, Ltd.
机译：2011年US亿吨更新估计，到2030年，每年将有足够的农业和森林资源可持续地提供至少10亿吨生物量，足以取代该国当前石油消费的约30％。由于其蠕动或低产率，在传统原料供应系统的当前成本目标中，这些资源的一部分无法进入。美国生物燃料生产的可靠分析和预测取决于关于供应系统和生物遗产能力的假设，反过来取决于经济价值，原料物流和可持续性。跨职能团队已经检查了原料供应系统的进步和生物美食能力的组合，具有严格的设计信息，改善了作物产量和农艺法，以及可持续生物量可用性的改进估算。以前的生化炼油厂的报告指出，在先进的原料物流供应系统下，包括仓库和预处理操作，与较小的2000年DMT /日设施相比，存在高达10 000个DMT /日设施的更大的生物档案。本报告侧重于分析常规与先进的仓库生物质供应系统，以获得基于木质生物质的热化学转换和炼油厂尺寸。该分析的结果表明，先进物流使得规模经济通过额外的仓库加工和运输抵消了大部分增加的物流成本，导致与传统物流供应系统相比的最小乙醇销售的总体增加。虽然整体成本为先进的物流供应系统进行了稍微增加，但在系统中减轻水分和灰分的能力将改善储存和转换过程。此外，能够从进一步距离绘制原料将降低对转换设施的生物质供应的风险。 （c）2014年作者。 Biofuels，Biopoducts，Biorefining由化学工业和约翰瓦里和儿子有限公司发表

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