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A techno-economic assessment of an algal-based biorefinery

机译：藻类生物精炼厂的技术经济评估

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摘要

Economic and technological assessments have identified difficulties with the commercialization of bulk products from microalgae, like biofuels. To overcome these problems, a multi-product algal-based biorefinery has been proposed. This paper performs a techno-economic assessment of such a biorefinery. Four production pathways, ranging from a base case with commercial technologies to an improved case with innovative technologies, are analyzed. All region-specific parameters were adapted to Belgian conditions. Three scenarios result in techno-economically viable production plants. The most profitable scenario is the scenario which uses a specialized membrane for medium recycling and an open pond algae cultivation. Although the inclusion of a photobioreactor decreases the culture medium costs, the higher investment costs result in lower economic profits. The carotenoid content and price are identified as critical parameters. Furthermore, the economies of scale assumption for the photobioreactor is critical for the feasibility of this cultivation technology. The techno-economic assessment is an important methodology to guide and evaluate further improvements in research and shorten the time-to-market for innovative technologies in this field.
机译：经济和技术评估确定了微藻类散装产品（如生物燃料）的商业化困难。为了克服这些问题，已经提出了基于藻类的多产品生物精炼厂。本文对这种生物精炼厂进行了技术经济评估。分析了四种生产路径，从具有商业技术的基本案例到具有创新技术的改进案例。所有特定于地区的参数均适应比利时条件。三种情况导致了技术经济可行的生产工厂。最有利可图的方案是使用专门的膜进行介质回收和露天池塘藻类养殖的方案。尽管包含光生物反应器降低了培养基成本，但是较高的投资成本导致较低的经济利润。类胡萝卜素含量和价格被确定为关键参数。此外，光生物反应器的规模经济假设对于该栽培技术的可行性至关重要。技术经济评估是一种重要的方法，可以指导和评估研究的进一步改进，并缩短该领域创新技术的上市时间。

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