Biorefinery design from agroindustrial by-products and its scaling-up analysis

Q1 Environmental Science

Bioresource Technology Reports Pub Date : 2025-06-13 DOI:10.1016/j.biteb.2025.102175

Cintia G. Fit , Nicolás M. Clauser , Fernando E. Felissia , María C. Area

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Abstract

Lignocellulosic residues can yield high-value products, but commercial implementation requires careful process design and assessment and supports sustainability goals. This paper presents a Techno-Economic Assessment (TEA) to obtain bioethanol, biochar, silica, and bio-oil from Rice Husk (RH), evaluating the economic indicators and developing the scaling-up analysis. For a capacity of 100,000 metric tons per year, the Total Capital Investment (TCI) was 342 million USD, with an Internal Rate of Return (IRR) of 10 %. By increasing the production capacity (125,000 to 200,000 metric tons per year), the Net Present Value (NPV) ranges from 15 to 179 million USD, and TCI ranges from 387 to 504 million USD. Scaling factor selection was critical for the TEA, and the selected factors significantly affect economic indicators. By providing new insights into the scale-up implications, this study contributes original and practical knowledge to support the commercial viability of sustainable biorefineries.

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农业工业副产品生物炼制设计及其规模化分析

木质纤维素残留物可以产生高价值的产品，但商业应用需要仔细的工艺设计和评估，并支持可持续性目标。本文介绍了从稻壳中提取生物乙醇、生物炭、二氧化硅和生物油的技术经济评价（TEA），评价了经济指标，并进行了规模分析。对于年产10万吨的产能，总资本投资（TCI）为3.42亿美元，内部收益率（IRR）为10%。通过增加产能（12.5万至20万吨/年），净现值（NPV）在1500万至1.79亿美元之间，TCI在3.87亿至5.04亿美元之间。比例因子的选择对TEA的经济指标有显著影响。通过提供对规模化影响的新见解，本研究为支持可持续生物精炼厂的商业可行性提供了原创和实用的知识。

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