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Gubatanga DV, Sawai O, Nunoura T. Reaction kinetics and pathways of crotonic acid conversion in sub- and supercritical water for renewable fuel production. REACT CHEM ENG 2022. [DOI: 10.1039/d1re00435b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The degradation of an unsaturated lipid compound in water proceeds via two temperature-driven pathways – ionic and free radical reaction pathways.
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Affiliation(s)
- Diane Valenzuela Gubatanga
- Graduate School of Frontier Sciences, Department of Environment Systems, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa City, Chiba 277-8563, Japan
| | - Osamu Sawai
- Graduate School of Frontier Sciences, Department of Environment Systems, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa City, Chiba 277-8563, Japan
- Environmental Science Center, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Teppei Nunoura
- Graduate School of Frontier Sciences, Department of Environment Systems, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa City, Chiba 277-8563, Japan
- Environmental Science Center, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
- Collaborative Research Institute for Innovative Microbiology, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
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Wei N, Xu D, Hao B, Guo S, Guo Y, Wang S. Chemical reactions of organic compounds in supercritical water gasification and oxidation. WATER RESEARCH 2021; 190:116634. [PMID: 33290907 DOI: 10.1016/j.watres.2020.116634] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Revised: 11/09/2020] [Accepted: 11/10/2020] [Indexed: 06/12/2023]
Abstract
Supercritical water is a benign reaction medium to convert organic matters through supercritical water gasification and supercritical water oxidation into flammable gaseous and harmless substances, respectively. This work systematically summarizes main chemical reactions of some typical organic compounds in supercritical water with or without oxidant for the first time. These compounds include hydrocarbons, proteins, cellulose, lignins, phenols, alcohols, aldehydes, ketones, organic acids, and some N-, Cl-, Br-, F-, S- and P-containing organic matters. Their main conversion pathways, reaction processes, intermediate products, final products and influence factors are analyzed deeply. This information helps to understand and predict corresponding reaction mechanisms and to better achieve objective products in supercritical water gasification and supercritical water oxidation.
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Affiliation(s)
- Ning Wei
- Key Laboratory of Thermo-Fluid Science & Engineering, Ministry of Education, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi Province, 710049, China
| | - Donghai Xu
- Key Laboratory of Thermo-Fluid Science & Engineering, Ministry of Education, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi Province, 710049, China.
| | - Botian Hao
- Key Laboratory of Thermo-Fluid Science & Engineering, Ministry of Education, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi Province, 710049, China
| | - Shuwei Guo
- Key Laboratory of Thermo-Fluid Science & Engineering, Ministry of Education, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi Province, 710049, China
| | - Yang Guo
- Key Laboratory of Thermo-Fluid Science & Engineering, Ministry of Education, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi Province, 710049, China
| | - Shuzhong Wang
- Key Laboratory of Thermo-Fluid Science & Engineering, Ministry of Education, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi Province, 710049, China
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Mylapilli SP, Reddy SN. Supercritical water oxidation of recalcitrant acetaminophen with methanol, ethanol, n-propanol, isopropanol and glycerol as co-fuels. CHEMICAL ENGINEERING JOURNAL ADVANCES 2020. [DOI: 10.1016/j.ceja.2020.100028] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
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