Modelling and dynamic simulation to produce fermentable sugars from lignocellulosic substrates through dilute acid hydrolysis

Author:

Velázquez‐Herrera Luis Antonio1ORCID,Cobos‐Murcia José Ángel2ORCID,Bolaños‐Reynoso Eusebio1,López‐Zamora Leticia1ORCID

Affiliation:

1. Tecnológico Nacional de México/Instituto Tecnológico de Orizaba/División de Estudios de Posgrado e Investigación Orizaba Mexico

2. Universidad Autónoma del Estado de Hidalgo, Área Académica de Ciencias de la Tierra y Materiales Tulancingo Mexico

Abstract

AbstractThis research paper presents a comprehensive investigation aimed at enhancing the 2G bioethanol production process through the implementation of a dynamic process simulator. The simulator, developed using the Julia programming language, enables the prediction of acid hydrolysis behaviour by manipulating critical variables, including liquid–solid ratio (LSR), acid concentration (CA), and processing time (t). Through meticulous simulations and subsequent experimental validation, optimal operating conditions were revealed, with an H2SO4 concentration of 2% v/v, a LSR of 4% v/w, and 60‐min processing time at 121.1°C. This configuration led to remarkable outcomes, including a xylose concentration of 47.45 g L−1 and an 87.4% hemicellulose removal percentage. Moreover, the simulator unveiled the adverse influence of low LSR values on xylose production and the generation of degradation products. The recalibration of kinetic parameters, guided by experimental data, further fine‐tuned the simulator's predictive accuracy. Overall, this study underscores the potential of the simulator in optimizing various raw materials and presents a promising avenue for advancing 2G bioethanol industry practices.

Funder

Tecnológico Nacional de México

Consejo Nacional de Ciencia y Tecnología

Publisher

Wiley

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