DOAJ Open Access 2025

Opportunities of Coupling Hydrothermal Liquefaction with Wet Oxidation: Significance of Appropriate Thermodynamic Model Selection in Process Modeling

Arif Hussain Bertram Thoning Hvass Søgaard Konstantinos Anastasakis

Abstrak

This study examines the significance of thermodynamic model selection to improve predictions when modeling a wet oxidation (WO) process. WO is a promising technology for treating the highly concentrated process water stream from hydrothermal liquefaction (HTL) while generating heat, due to the exothermic oxidation reactions, leading to a potential integrated HTL-WO autothermal process. However, the harsh process conditions employed fail to describe oxygen solubility accurately, leading to major deviations in predicted COD reduction, heat generation, vapor fraction, and final design. To accurately capture oxygen solubility at elevated temperatures and pressures, experimental oxygen solubility data were regressed using activity coefficient models. This yielded improved oxygen solubility predictions at 280–350 °C, more realistic vapor fractions and heat outputs, and COD reduction close to experimental values.

Topik & Kata Kunci

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Penulis (3)

Arif Hussain

Bertram Thoning Hvass Søgaard

Konstantinos Anastasakis

Format Sitasi

APA MLA BibTeX

Hussain, A., Søgaard, B.T.H., Anastasakis, K. (2025). Opportunities of Coupling Hydrothermal Liquefaction with Wet Oxidation: Significance of Appropriate Thermodynamic Model Selection in Process Modeling. https://doi.org/10.3390/proceedings2025121007

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Informasi Jurnal

Tahun Terbit: 2025
Sumber Database: DOAJ
DOI: 10.3390/proceedings2025121007
Akses: Open Access ✓