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Optimization of hydrogen production in anaerobic digesters with input and state estimation and model predictive control

Cesar Arturo Aceves-Lara 1 Eric Latrille 1 Nicolas Bernet 1 Pierre Buffière 1 Jean-Philippe Steyer 1
1 LBE - Laboratoire de Biotechnologie de l'Environnement [Narbonne]
Abstract : This paper addresses the problem of optimization of hydrogen production in continuous anaerobic digesters utilizing an model predictive control (MPC) strategy. The process is described by a dynamic nonlinear model. The influent COD concentration together with the effluent substrate and product concentrations are considered as state variables and estimated by an asymptotic online observer from measurements of gas composition and gas flow rate. It is experimentally demonstrated that a 75% increase of the hydrogen production can be obtained using the influent flow rate as the main control variable while keeping the conversion of the influent COD concentration higher than 95 %.
Keywords : ANAEROBIC DIGESTION MODELING ASYMPTOTIC OBSERVER MODEL PREDICTIVE CONTROL GENIE DES PROCEDES CONTROLE
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Conference papers
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https://hal.inrae.fr/hal-02815280
Contributor : Migration Prodinra <>
Submitted on : Saturday, June 6, 2020 - 12:52:51 PM
Last modification on : Friday, February 5, 2021 - 4:02:51 AM

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  • HAL Id : hal-02815280, version 1
  • PRODINRA : 157832

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INRAE | INRA | AGROPOLIS | MONTPELLIER-SUPAGRO | INRAEOCCITANIEMONTPELLIER

Citation

Cesar Arturo Aceves-Lara, Eric Latrille, Nicolas Bernet, Pierre Buffière, Jean-Philippe Steyer. Optimization of hydrogen production in anaerobic digesters with input and state estimation and model predictive control. 5. Colloque STIC & Environnement, Nov 2007, Lyon, France. ⟨hal-02815280⟩

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