Exergetic and Economic Analysis of Three Multi-Product Biorefinery Schemes for the Valorization of Agricultural Wastes: A Case Study of Colombia
農業廃棄物の価値化のための3つの多製品バイオリファイナリースキームのエクセルギーおよび経済分析：コロンビアの事例研究 (AI 翻訳)
Adrian Yaya-González, Daniela Alvarado-Barrios, Y. Peralta-Ruiz
🤖 gxceed AI 要約
日本語
本研究は、コロンビアの農業廃棄物（トウモロコシ茎葉）を原料とする3つのバイオリファイナリースキームを設計・シミュレーションし、エクセルギー効率と経済性を評価した。最も高い内部収益率（28.01%）を示したシナリオは、キシリトール、リグニン、グルタミン酸などを生産し、CO2回収も可能である。エクセルギー損失は主にコージェネレーションシステムで発生した。
English
This study designs and simulates three biorefinery schemes using corn stover in Colombia, evaluating exergy efficiency and economic viability. The best scenario (SCE03) produces xylitol, lignin, glutamic acid, and captures CO2, achieving an IRR of 28.01% and NPV of USD 985.1M. Exergy losses are highest in the CHP system. The model offers a benchmark for lignocellulosic waste valorization.
Unofficial AI-generated summary based on the public title and abstract. Not an official translation.
📝 gxceed 編集解説 — Why this matters
日本のGX文脈において
日本のバイオマス政策（特に木質・農業残渣利用）や地域循環型経済に参考になるが、直接的な規制連動は薄い。
In the global GX context
This paper demonstrates a circular bioeconomy approach for agricultural waste in a developing country context, relevant to global decarbonization through biomass utilization and waste-to-value pathways.
👥 読者別の含意
🔬研究者:Provides comparative exergy and economic data for biorefinery configurations that can inform future process optimization studies.
🏢実務担当者:Offers a business case for investing in integrated biorefineries that convert agricultural residues into multiple products with CO2 capture.
🏛政策担当者:Highlights the potential of waste valorization for rural development and emission reductions, supporting bioeconomy policy design.
📄 Abstract（原文）
Colombia generates large volumes of lignocellulosic residues from agriculture, forestry, and agro-industrial activities. Much of this material is landfilled, openly burned, or left to decompose. These practices drive greenhouse-gas emissions (methane and CO2), particulate air pollution, water contamination, and pest proliferation. Therefore, this study focuses on the design, simulation, exergetic and economic analysis of lignocellulosic biorefinery schemes in Colombia using corn stover (CS) as feedstock. This approach thus turns an environmental liability into valuable resources. Mass and energy balances obtained from Aspen Plus V10® were used to calculate exergy efficiency. Economic indicators were provided by the Aspen Process Economic Analyzer (APEA) V10® software. The first scenario (SCE01) included xylitol, lignin, carbon dioxide, biogas, and biofertilizer production along with in situ ethanol co-production; for scenario 2 (SCE02), a cogeneration (CHP) stage using biogas and biofertilizer as fuel was added; in scenario 3 (SCE03), the ethanol production of scenarios 1 and 2 was replaced by glutamic acid production. The exergy efficiency results were as follows: SCE01 (60.1%), SCE02 (36.8%), SCE03 (37.5%). The largest exergy losses were found in the CHP system. In terms of economic viability, all scenarios showed favorable economic parameters. SCE03 showed better results with an Internal Rate of Return (IRR) of 28.01% and a Net Present Value (NPV) of USD 985.1 M compared to SCE01 (27.48%; USD 769.1 M) and SCE02 (27.13%; USD 643.1 M). In light of these results, the SCE03 approach represents the most attractive investment opportunity, with the potential to integrate the social and environmental pillars of sustainability by fostering rural economic development and CO2 capture. Optimization strategies can be readily adopted to enhance the overall efficiency of the proposed model, enabling it to serve as a benchmark for scaling and comparing alternative lignocellulosic waste valorization pathways at a national level.
🔗 Provenance — このレコードを発見したソース
- semanticscholar https://doi.org/10.3390/pr14040586first seen 2026-05-06 00:09:28
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