Work

Integrative approach to hydrothermal gasification of food waste for hydrogen production: experimental validation, techno-economic assessment, and mathematical modeling

Year: 2025

Type: article

Abstract: This study conducts a techno-economic and environmental analysis to assess the viability and benefits of H 2 production from food waste via hydrothermal gasification (HTG). Experimental results were used to examine the effects of critical parameters, including temperature, reaction time, and catalyst use, on H 2 yield. Response surface methodology (RSM) was employed to explore the relationships among operational factors and to develop a mathematical model that forecasts various experimental outcomes. Fourier Transform Infrared Spectroscopy (FTIR) was utilized to analyse the chemical properties of bio-oil. The most favourable parameters for this process are 350 °C and 18 MPa, resulting in a maximum yield of 796 mL after 90 min. Sodium hydroxide (NaOH) significantly enhances H 2 production to approximately 800 cc, surpassing the performance of other catalysts. FTIR analysis reveals the chemical complexity of bio-oil, which presents promising prospects for sustainable fuel. Replacing 1.9 Mt of coal, 1.3 Mt of diesel, and 1.19 Mt of natural gas with H 2 can result in a cost savings of M$ 228 by 2023. This comprehensive study offers a comprehensive perspective on implementing H 2 energy through HTG technology.

Source: Energy Conversion and Management X

DOI: 10.1016/j.ecmx.2025.101123

Authors: Fairuz Wasima, Md. Sanowar Hossain, Md. Sharul Islam Khan Shawon, Monjur Mourshed, Md. Golam Kibria

Institution: Rajshahi University of Engineering and Technology

Language: English

Topic: Thermochemical Biomass Conversion Processes

Subfield: Biomedical Engineering

Field: Engineering

Domain: Physical Sciences

SDGs: Affordable and clean energy, Responsible consumption and production, Climate action

Open Access status: gold

Estimated APC paid: $3,170