Applications of Supercritical Water in Waste Treatment and Valorization: A Review

Nadjiba Benmakhlouf, Nawel Outili, Belén García-Jarana, Jezabel Sánchez-Oneto, Juan R. Portela, Mejdi Jeguirim () and Abdeslam-Hassen Meniai
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Nadjiba Benmakhlouf: Environmental Process Engineering Laboratory, University Constantine 3, Constantine 25000, Algeria
Nawel Outili: Environmental Process Engineering Laboratory, University Constantine 3, Constantine 25000, Algeria
Belén García-Jarana: Department of Chemical Engineering and Food Technology, University of Cadiz, 11003 Cádiz, Spain
Jezabel Sánchez-Oneto: Department of Chemical Engineering and Food Technology, University of Cadiz, 11003 Cádiz, Spain
Juan R. Portela: Department of Chemical Engineering and Food Technology, University of Cadiz, 11003 Cádiz, Spain
Mejdi Jeguirim: Institut de Sciences des Matériaux de Mulhouse, Université de Haute-Alsace, 68100 Mulhouse, France
Abdeslam-Hassen Meniai: Environmental Process Engineering Laboratory, University Constantine 3, Constantine 25000, Algeria

Energies, 2023, vol. 16, issue 4, 1-32

Abstract: The present review deals with water applications in sub and supercritical conditions with a focus on supercritical water oxidation process (SCWO) as an example of high temperature and pressure technologies. It starts by presenting the advantages of water properties near and beyond the critical point and the major applications exploiting them. Then, it presents a review on SCWO from the description of the process, the reaction mechanism and kinetics to reactor design and modeling. It also presents the main problems and difficulties that delay the SCWO industrial application, and summarizes the main efforts and research to overcome them for a safe, efficient and economic process.

Keywords: supercritical water applications; hydrothermal oxidation; supercritical water properties; chemical kinetics; modeling; SCWO (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2023
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