Hydrothermal carbonization of sugar beet pulp: optimization and characterization
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Date
2024
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Springer Heidelberg
Access Rights
info:eu-repo/semantics/openAccess
Abstract
In this study, the optimum hydrothermal conditions of sugar beet pulp were investigated by Response Surface Methodology (RSM) based on Central Composite Design (CCD). The hydrochar obtained from sugar beet pulp (SBP) was optimized for maximum yield and carbon content. Process conditions were chosen with reaction temperatures of 200-240 degrees C, residence time 60-150 min, and biomass to water ratio of 1:3-1:10. The yield and carbon content of the hydrochar varied with the process parameters. In order to obtain hydrochar with the highest yield and carbon content in optimization, the reaction temperature should be 220.74 degrees C, the biomass to water ratio should be 1:3, and the residence time should be 95.58 min. High heating value, energy and mass yield, and energy densification ratio of sugar beet pulp and hydrochar were also investigated. The products were characterized using FT-IR, SEM, and ultimate analysis techniques. The Coats-Redfern method was used to estimate the kinetic parameters of the combustion processes. The activation energy values of SBP and SBP-HC products were calculated as 13.88 and 11.46 kJ/mol, respectively. The kinetic data were used to determine the thermodynamic parameters (Delta H, Delta G, and Delta S). As a result, the properties of hydrochar produced from sugar beet pulp under optimum conditions have been extensively investigated and the results have shown that hydrochar has potential for use in different areas.
Description
Keywords
Biomass, Hydrothermal carbonization, Central Composite Design, Response Surface Methodology, Sugar beet pulp
Journal or Series
Biomass Conversion and Biorefinery
WoS Q Value
Q2
Scopus Q Value
Q2
Volume
14
Issue
17
