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Chibiryaev A, Kozhevnikov I, Martyanov O. Transformation of petroleum asphaltenes in supercritical alcohols—A tool to change H/C ratio and remove S and N atoms from refined products. Catal Today 2019. [DOI: 10.1016/j.cattod.2018.10.066] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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Bondesgaard M, Becker J, Xavier J, Hellstern H, Mamakhel A, Iversen BB. Guide to by-products formed in organic solvents under solvothermal conditions. J Supercrit Fluids 2016. [DOI: 10.1016/j.supflu.2016.02.012] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Shen Y, Zhao R, Wang J, Chen X, Ge X, Chen M. Waste-to-energy: Dehalogenation of plastic-containing wastes. WASTE MANAGEMENT (NEW YORK, N.Y.) 2016; 49:287-303. [PMID: 26764134 DOI: 10.1016/j.wasman.2015.12.024] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2015] [Revised: 11/08/2015] [Accepted: 12/27/2015] [Indexed: 05/28/2023]
Abstract
The dehalogenation measurements could be carried out with the decomposition of plastic wastes simultaneously or successively. This paper reviewed the progresses in dehalogenation followed by thermochemical conversion of plastic-containing wastes for clean energy production. The pre-treatment method of MCT or HTT can eliminate the halogen in plastic wastes. The additives such as alkali-based metal oxides (e.g., CaO, NaOH), iron powders and minerals (e.g., quartz) can work as reaction mediums and accelerators with the objective of enhancing the mechanochemical reaction. The dehalogenation of waste plastics could be achieved by co-grinding with sustainable additives such as bio-wastes (e.g., rice husk), recyclable minerals (e.g., red mud) via MCT for solid fuels production. Interestingly, the solid fuel properties (e.g., particle size) could be significantly improved by HTT in addition with lignocellulosic biomass. Furthermore, the halogenated compounds in downstream thermal process could be eliminated by using catalysts and adsorbents. Most dehalogenation of plastic wastes primarily focuses on the transformation of organic halogen into inorganic halogen in terms of halogen hydrides or salts. The integrated process of MCT or HTT with the catalytic thermal decomposition is a promising way for clean energy production. The low-cost additives (e.g., red mud) used in the pre-treatment by MCT or HTT lead to a considerable synergistic effects including catalytic effect contributing to the follow-up thermal decomposition.
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Affiliation(s)
- Yafei Shen
- Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, Jiangsu Engineering and Technology Research Center of Environmental Cleaning Materials (ECM), Collaborative Innovation Center of Atmospheric Environment and Equipment Technology (AEET), School of Environmental Science and Engineering, Nanjing University of Information Science & Technology, 219 Ningliu Road, Nanjing 210044, China.
| | - Rong Zhao
- College of Hunanities and Social Science, Nanjing University of Aeronautics and Astronautic, Nanjing 210016, China
| | - Junfeng Wang
- Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, Jiangsu Engineering and Technology Research Center of Environmental Cleaning Materials (ECM), Collaborative Innovation Center of Atmospheric Environment and Equipment Technology (AEET), School of Environmental Science and Engineering, Nanjing University of Information Science & Technology, 219 Ningliu Road, Nanjing 210044, China; Department of Environmental Toxicology, University of California at Davis, 1 Shields Avenue, Davis, CA 95616, United States
| | - Xingming Chen
- Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, Jiangsu Engineering and Technology Research Center of Environmental Cleaning Materials (ECM), Collaborative Innovation Center of Atmospheric Environment and Equipment Technology (AEET), School of Environmental Science and Engineering, Nanjing University of Information Science & Technology, 219 Ningliu Road, Nanjing 210044, China
| | - Xinlei Ge
- Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, Jiangsu Engineering and Technology Research Center of Environmental Cleaning Materials (ECM), Collaborative Innovation Center of Atmospheric Environment and Equipment Technology (AEET), School of Environmental Science and Engineering, Nanjing University of Information Science & Technology, 219 Ningliu Road, Nanjing 210044, China
| | - Mindong Chen
- Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, Jiangsu Engineering and Technology Research Center of Environmental Cleaning Materials (ECM), Collaborative Innovation Center of Atmospheric Environment and Equipment Technology (AEET), School of Environmental Science and Engineering, Nanjing University of Information Science & Technology, 219 Ningliu Road, Nanjing 210044, China
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Abstract
Oxidations of phenylacetic acid to benzaldehyde, benzyl alcohol to benzaldehyde, and benzaldehyde to benzoic acid have been observed, in water as the solvent and using only copper(II) chloride as the oxidant. The reactions are performed at 250 °C and 40 bar, conditions that mimic hydrothermal reactions that are geochemically relevant. Speciation calculations show that the oxidizing agent is not freely solvated copper(II) ions, but complexes of copper(II) with chloride and carboxylate anions. Measurements of the reaction stoichiometries and also of substituent effects on reactivity allow plausible mechanisms to be proposed. These oxidation reactions are relevant to green chemistry in that they proceed in high chemical yield in water as the solvent and avoid the use of toxic heavy metal oxidizing reagents.
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Affiliation(s)
- Ziming Yang
- The School of Molecular Sciences, Arizona State University , Tempe, Arizona 85287, United States
| | - Hilairy E Hartnett
- The School of Molecular Sciences, Arizona State University , Tempe, Arizona 85287, United States.,School of Earth and Space Exploration, Arizona State University , Tempe, Arizona 85287, United States
| | - Everett L Shock
- The School of Molecular Sciences, Arizona State University , Tempe, Arizona 85287, United States.,School of Earth and Space Exploration, Arizona State University , Tempe, Arizona 85287, United States
| | - Ian R Gould
- The School of Molecular Sciences, Arizona State University , Tempe, Arizona 85287, United States
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Hirashita T, Ogawa M, Hattori R, Okochi S, Araki S. Condensation of Indoles and Aldehydes in Subcritical Water without the Addition of Catalysts. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2015. [DOI: 10.1246/bcsj.20150247] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Tsunehisa Hirashita
- Omohi College, Graduate School of Engineering, Nagoya Institute of Technology
| | - Masaki Ogawa
- Omohi College, Graduate School of Engineering, Nagoya Institute of Technology
| | - Reina Hattori
- Omohi College, Graduate School of Engineering, Nagoya Institute of Technology
| | - Sota Okochi
- Omohi College, Graduate School of Engineering, Nagoya Institute of Technology
| | - Shuki Araki
- Omohi College, Graduate School of Engineering, Nagoya Institute of Technology
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Yang Z, Lorance ED, Bockisch C, Williams LB, Hartnett HE, Shock EL, Gould IR. Hydrothermal Photochemistry as a Mechanistic Tool in Organic Geochemistry: The Chemistry of Dibenzyl Ketone. J Org Chem 2014; 79:7861-71. [DOI: 10.1021/jo500899x] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ziming Yang
- Department
of Chemistry and Biochemistry, Arizona State University, Tempe, Arizona 85287, United States
| | - Edward D. Lorance
- Department
of Chemistry, Vanguard University, Costa Mesa, California 92926, United States
| | - Christiana Bockisch
- Department
of Chemistry and Biochemistry, Arizona State University, Tempe, Arizona 85287, United States
| | - Lynda B. Williams
- School
of Earth and Space Exploration, Arizona State University, Tempe, Arizona 85287, United States
| | - Hilairy E. Hartnett
- Department
of Chemistry and Biochemistry, Arizona State University, Tempe, Arizona 85287, United States
- School
of Earth and Space Exploration, Arizona State University, Tempe, Arizona 85287, United States
| | - Everett L. Shock
- Department
of Chemistry and Biochemistry, Arizona State University, Tempe, Arizona 85287, United States
- School
of Earth and Space Exploration, Arizona State University, Tempe, Arizona 85287, United States
| | - Ian R. Gould
- Department
of Chemistry and Biochemistry, Arizona State University, Tempe, Arizona 85287, United States
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