Work

Optimization of Biomethane Productivity of an Industrial Anaerobic Digestion Process

Year: 2025

Type: article

Abstract: This study aims to determine the optimal operating conditions of an industrial agriculture digester to maximize the biomethane productivity. This involves identifying key decision variables, such as the input substrate feed rate and digestate recirculation flow, while ensuring compliance with critical operational constraints, including command saturation, biomethane production, Organic Loading Rate (OLR), and Hydraulic Retention Time (HRT) limits. Advanced optimization techniques, specifically genetic algorithms, are considered to fine-tune process parameters to achieve the specifications. Additionally, multiple scenarios are explored regarding the premix feeding strategy of input materials, ensuring an optimized and adaptive approach to enhance overall system performance and efficiency. The proposed solution leads to about 11 % increase of the biomethane production over a month in comparison to an existing initial solution.

Source: IFAC-PapersOnLine

DOI: 10.1016/j.ifacol.2025.09.537

Authors: J. Thuillier, S. Tebbani, C. Puentes, D. Dumur

Institutions: Centre National de la Recherche Scientifique, Université Paris-Saclay, Laboratoire des signaux et systèmes, CentraleSupélec, Laboratoire de Génie des Procédés et Matériaux

Language: English

Topic: Anaerobic Digestion and Biogas Production

Subfield: Building and Construction

Field: Engineering

Domain: Physical Sciences

SDGs: Affordable and clean energy, Responsible consumption and production, Industry, innovation and infrastructure

Open Access status: diamond

Funder: Agence Nationale de la Recherche