Modeling of biogas production from hydrothermal carbonization products in a continuous anaerobic digester.

IF 0.7 4区计算机科学 Q4 COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS

ACM Transactions on Modeling and Computer Simulation Pub Date : 2024-07-23 DOI:10.1145/3680281

Benaissa Dekhici, B. Benyahia, B. Cherki, Luca Fiori, G. Andreottola

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引用次数: 0

Abstract

The coupling between anaerobic digestion and hydrothermal carbonization (HTC) is a promising alternative for sustainable energy production. This study presents a dynamic model tailored for a lab-scale anaerobic digester operating on HTC products, specifically hydrochar and HTC liquor derived from sewage and agro-industrial digestate. Leveraging a modified version of the Anaerobic Model 2 (AM2), our simplified model of four states integrates pH and biomass decay rates into biomass kinetics. Simulation results of the mode were compared with experimental data collected over 164 days from the digester. The obtained results have proven the ability of the proposed model to predict the trend of the biogas production as well as important measured outputs of the bioreactor. The developed model could be used to control and optimize the performance of the digester, which provides potential for bioenergy production from waste streams such as digestate and digestate treated through the HTC process.

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连续厌氧消化器中热液碳化产物产生沼气的模型。

厌氧消化与水热碳化（HTC）之间的耦合是可持续能源生产的一种有前途的替代方法。本研究为实验室规模的厌氧消化器提供了一个动态模型，该消化器以水热碳化（HTC）产品为原料，特别是来自污水和农用工业沼渣的水碳和水热碳化液。利用厌氧模型 2（AM2）的改进版本，我们的简化模型包含四个状态，将 pH 值和生物量衰减率整合到生物量动力学中。该模式的模拟结果与从沼气池收集的 164 天的实验数据进行了比较。所获得的结果证明，所提出的模型能够预测沼气生产的趋势以及生物反应器的重要测量输出。所开发的模型可用于控制和优化消化器的性能，从而为利用沼渣和经 HTC 工艺处理的沼渣等废物流生产生物能源提供了潜力。

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来源期刊

ACM Transactions on Modeling and Computer Simulation 工程技术-计算机：跨学科应用

CiteScore

2.50

自引率

22.20%

发文量

审稿时长

>12 weeks

期刊介绍： The ACM Transactions on Modeling and Computer Simulation (TOMACS) provides a single archival source for the publication of high-quality research and developmental results referring to all phases of the modeling and simulation life cycle. The subjects of emphasis are discrete event simulation, combined discrete and continuous simulation, as well as Monte Carlo methods. The use of simulation techniques is pervasive, extending to virtually all the sciences. TOMACS serves to enhance the understanding, improve the practice, and increase the utilization of computer simulation. Submissions should contribute to the realization of these objectives, and papers treating applications should stress their contributions vis-á-vis these objectives.