Abstract
This study aimed to investigate the physical and chemical characteristics of hydrochar derived from waste furniture through hydrothermal carbonization (HTC) and evaluate its suitability as a fuel for blast furnace injection, the formation mechanism of biomass conversion to hydrochar was also systematically investigated. The optimal HTC conditions were determined as 260 °C, liquid–solid mass ratio of 2:1. The resulting hydrochar exhibited a high calorific value of 27.78 MJ/kg, a specific surface area (St) of 3.01 m2/g, and K and Na concentrations of 203 mg/kg and 416 mg/kg, respectively. The apparent activation energy (E) for gasification was measured as 154.54 kJ/mol, indicating its potential as a clean injection fuel for blast furnaces. During HTC, cellulose, hemicellulose, and lignin underwent hydrolysis, decarboxylation, polymerization, and aromatization processes, resulting in the transformation of water-soluble small molecules into polymerized hydrochar and water-insoluble large molecules into polyaromatic hydrochar. This study provides insights into the possibility of replacing fossil fuels in the blast furnace iron-making process.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
