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Duan C, Tanaka M, Kishida M, Watanabe T. Treatment of pyridine in industrial liquid waste by atmospheric DC water plasma. JOURNAL OF HAZARDOUS MATERIALS 2022; 430:128381. [PMID: 35149488 DOI: 10.1016/j.jhazmat.2022.128381] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 01/13/2022] [Accepted: 01/26/2022] [Indexed: 06/14/2023]
Abstract
Pyridine is a basic heterocyclic compound with high toxicity, widely found in liquid waste from industrial processes. The treatment of highly-concentrated pyridine was demonstrated using a novel mist-type water thermal plasma torch. Decomposition rate and TOC removal rate were more than 94% in all conditions, while the max energy efficiency reached about 23 g/kWh. With a high temperature of 5500-7500 K, more than 95% of carbon content in pyridine was converted into valuable gas products, while a little amount of formic acid and acetic acid were observed as liquid by-products. The production of hydrogen cyanide (HCN) during the thermal decomposition of pyridine was observed, which can be inhibited by increasing the input power. Based on the experimental results, detailed decomposition mechanisms in the high-temperature and the downstream region were discussed respectively. Water plasma shows significant potential in the treatment of non-biodegradable industrial liquid waste.
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Affiliation(s)
- Chengyuan Duan
- Department of Chemical Engineering, Kyushu University, Fukuoka 819-0395, Japan
| | - Manabu Tanaka
- Department of Chemical Engineering, Kyushu University, Fukuoka 819-0395, Japan
| | - Masahiro Kishida
- Department of Chemical Engineering, Kyushu University, Fukuoka 819-0395, Japan
| | - Takayuki Watanabe
- Department of Chemical Engineering, Kyushu University, Fukuoka 819-0395, Japan.
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2
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Zhang Y, Liu Y, Zhao M, Du H, Sun Y, Li H, Wang Z. Computational study on the mechanisms of the methylketene with Cl/Br reactions in the atmosphere. Chem Phys 2021. [DOI: 10.1016/j.chemphys.2021.111310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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3
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Johnson MS, Nimlos MR, Ninnemann E, Laich A, Fioroni GM, Kang D, Bu L, Ranasinghe D, Khanniche S, Goldsborough SS, Vasu SS, Green WH. Oxidation and pyrolysis of methyl propyl ether. INT J CHEM KINET 2021. [DOI: 10.1002/kin.21489] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Matthew S. Johnson
- Department of Chemical Engineering Massachusetts Institute of Technology Cambridge Massachusetts USA
| | - Mark R. Nimlos
- National Bioenergy Center National Renewable Energy Laboratory Golden Colorado USA
| | - Erik Ninnemann
- Center for Advanced Turbomachinery and Energy Research (CATER), Mechanical and Aerospace Engineering University of Central Florida Orlando Florida USA
| | - Andrew Laich
- Center for Advanced Turbomachinery and Energy Research (CATER), Mechanical and Aerospace Engineering University of Central Florida Orlando Florida USA
| | - Gina M. Fioroni
- National Bioenergy Center National Renewable Energy Laboratory Golden Colorado USA
| | - Dongil Kang
- Center for Transportation Research, Energy Systems Division Argonne National Laboratory Argonne Illinois USA
| | - Lintao Bu
- National Bioenergy Center National Renewable Energy Laboratory Golden Colorado USA
| | - Duminda Ranasinghe
- Department of Chemical Engineering Massachusetts Institute of Technology Cambridge Massachusetts USA
| | - Sarah Khanniche
- Department of Chemical Engineering Massachusetts Institute of Technology Cambridge Massachusetts USA
| | - S. Scott Goldsborough
- Center for Transportation Research, Energy Systems Division Argonne National Laboratory Argonne Illinois USA
| | - Subith S. Vasu
- Center for Advanced Turbomachinery and Energy Research (CATER), Mechanical and Aerospace Engineering University of Central Florida Orlando Florida USA
| | - William H. Green
- Department of Chemical Engineering Massachusetts Institute of Technology Cambridge Massachusetts USA
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4
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Bedjanian Y. Temperature‐dependent rate constants for the reactions of chlorine atom with methanol and Br 2. INT J CHEM KINET 2020. [DOI: 10.1002/kin.21351] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Yuri Bedjanian
- Institut de Combustion, Aérothermique, Réactivité et Environnement (ICARE)CNRS 45071 Orléans Cedex 2 France
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5
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Schmalz F, Kopp WA, Kröger LC, Leonhard K. Correcting Rate Constants from Anharmonic Molecular Dynamics for Quantum Effects. ACS OMEGA 2020; 5:2242-2253. [PMID: 32064385 PMCID: PMC7016917 DOI: 10.1021/acsomega.9b03383] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Accepted: 12/30/2019] [Indexed: 06/10/2023]
Abstract
Anharmonicity can greatly affect rate constants. One or even several orders of magnitude of deviation are found for obtaining rate constants using the standard rigid-rotor harmonic-oscillator model. In turn, reactive molecular dynamics (MD) simulations are a powerful way to explore chemical reaction networks and calculate rate constants from the fully anharmonic potential energy surface. However, the classical nature of the dynamics and the required numerical efficiency of the force field limit the accuracy of the resulting kinetics. We combine the best of both worlds by presenting an approximation that pairs anharmonic information intrinsic to classical MD with high-accuracy energies and frequencies from quantum-mechanical electronic structure calculations. The proposed scheme is applied to hydrogen abstractions in the methane system, which allows for the benchmarking of rate constants corrected by our approach against experimental rate constants. This comparison reveals a standard deviation of factor 2.6. Two archetypes of possible failure are identified in the course of a detailed investigation of the CH3 • + H• → CH2 2• + H2 reaction. From this follows the application range of the method, within which the method shows a standard deviation of factor 2.1. The computational efficiency and beneficial scaling of the method allow for application to larger systems, as shown for hydrogen abstraction from 2-butanone by HO2 •.
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Savchenkova AS, Semenikhin AS, Chechet IV, Matveev SG, Konnov AA, Mebel AM. Mechanism and rate constants of the CH 2 + CH 2 CO reactions in triplet and singlet states: A theoretical study. J Comput Chem 2019; 40:387-399. [PMID: 30299558 DOI: 10.1002/jcc.25613] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Revised: 09/09/2018] [Accepted: 09/10/2018] [Indexed: 11/10/2022]
Abstract
Ab initio and density functional CCSD(T)-F12/cc-pVQZ-f12//B2PLYPD3/6-311G** calculations have been performed to unravel the reaction mechanism of triplet and singlet methylene CH2 with ketene CH2 CO. The computed potential energy diagrams and molecular properties have been then utilized in Rice-Ramsperger-Kassel-Marcus-Master Equation (RRKM-ME) calculations of the reaction rate constants and product branching ratios combined with the use of nonadiabatic transition state theory for spin-forbidden triplet-singlet isomerization. The results indicate that the most important channels of the reaction of ketene with triplet methylene lead to the formation of the HCCO + CH3 and C2 H4 + CO products, where the former channel is preferable at higher temperatures from 1000 K and above. In the C2 H4 + CO product pair, the ethylene molecule can be formed either adiabatically in the triplet electronic state or via triplet-singlet intersystem crossing in the singlet electronic state occurring in the vicinity of the CH2 COCH2 intermediate or along the pathway of CO elimination from the initial CH2 CH2 CO complex. The predominant products of the reaction of ketene with singlet methylene have been shown to be C2 H4 + CO. The formation of these products mostly proceeds via a well-skipping mechanism but at high pressures may to some extent involve collisional stabilization of the CH3 CHCO and cyclic CH2 COCH2 intermediates followed by their thermal unimolecular decomposition. The calculated rate constants at different pressures from 0.01 to 100 atm have been fitted by the modified Arrhenius expressions in the temperature range of 300-3000 K, which are proposed for kinetic modeling of ketene reactions in combustion. © 2018 Wiley Periodicals, Inc.
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Affiliation(s)
| | | | - Ivan V Chechet
- Samara National Research University, Samara 443086, Russia
| | | | - Alexander A Konnov
- Division of Combustion Physics, Department of Physics, Lund University, S-221 00, Lund, Sweden
| | - Alexander M Mebel
- Samara National Research University, Samara 443086, Russia.,Department of Chemistry and Biochemistry, Florida International University, Miami, Florida, 33199
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7
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Semenikhin AS, Shubina EG, Savchenkova AS, Chechet IV, Matveev SG, Konnov AA, Mebel AM. Mechanism and Rate Constants of the CH3
+ CH2
CO Reaction: A Theoretical Study. INT J CHEM KINET 2018. [DOI: 10.1002/kin.21156] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
| | - E. G. Shubina
- Samara National Research University; Samara 443086 Russia
| | | | - I. V. Chechet
- Samara National Research University; Samara 443086 Russia
| | - S. G. Matveev
- Samara National Research University; Samara 443086 Russia
| | - A. A. Konnov
- Division of Combustion Physics; Department of Physics; Lund University; S-221 00 Lund Sweden
| | - A. M. Mebel
- Samara National Research University; Samara 443086 Russia
- Department of Chemistry and Biochemistry; Florida International University; Miami FL 33199
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9
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Hung WC, Tsai CY, Matsui H, Wang NS, Miyoshi A. Experimental and Theoretical Study on the Thermal Decomposition of C3H6 (Propene). J Phys Chem A 2015; 119:1229-37. [PMID: 25629305 DOI: 10.1021/jp5102169] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Wei-Chung Hung
- Department
of Applied Chemistry, National Chiao Tung University, 1001 Ta Hsueh
Road, Hsinchu 30010, Taiwan
| | - Chieh-Ying Tsai
- Department
of Applied Chemistry, National Chiao Tung University, 1001 Ta Hsueh
Road, Hsinchu 30010, Taiwan
| | - Hiroyuki Matsui
- Department
of Applied Chemistry, National Chiao Tung University, 1001 Ta Hsueh
Road, Hsinchu 30010, Taiwan
| | - Niann-Shiah Wang
- Department
of Applied Chemistry, National Chiao Tung University, 1001 Ta Hsueh
Road, Hsinchu 30010, Taiwan
| | - Akira Miyoshi
- Department
of Chemical System Engineering, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo, Japan
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Peukert SL, Michael JV. High-Temperature Shock Tube and Modeling Studies on the Reactions of Methanol with D-Atoms and CH3-Radicals. J Phys Chem A 2013; 117:10186-95. [DOI: 10.1021/jp4059005] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- S. L. Peukert
- Chemical
Sciences and Engineering
Division, Argonne National Laboratory, Argonne, Illinois 60439, United States
| | - J. V. Michael
- Chemical
Sciences and Engineering
Division, Argonne National Laboratory, Argonne, Illinois 60439, United States
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11
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Affiliation(s)
- Chen Qu
- Department of Chemistry and Cherry L. Emerson Center for Scientific Computation, Emory University , Atlanta, Georgia, USA
| | - Joel M. Bowman
- Department of Chemistry and Cherry L. Emerson Center for Scientific Computation, Emory University , Atlanta, Georgia, USA
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12
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Lee PF, Matsui H, Xu DW, Wang NS. Thermal Decomposition and Oxidation of CH3OH. J Phys Chem A 2013; 117:525-34. [DOI: 10.1021/jp309745p] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Pei-Fang Lee
- Department of Applied Chemistry, National Chiao Tung University, 1001 Ta Hsueh Road, Hsinchu 30010,
Taiwan
| | - Hiroyuki Matsui
- Department of Applied Chemistry, National Chiao Tung University, 1001 Ta Hsueh Road, Hsinchu 30010,
Taiwan
| | - Ding-Wei Xu
- Department of Applied Chemistry, National Chiao Tung University, 1001 Ta Hsueh Road, Hsinchu 30010,
Taiwan
| | - Niann-Shiah Wang
- Department of Applied Chemistry, National Chiao Tung University, 1001 Ta Hsueh Road, Hsinchu 30010,
Taiwan
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13
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Lee PF, Matsui H, Chen WY, Wang NS. Production of H and O(3P) Atoms in the Reaction of CH2 with O2. J Phys Chem A 2012; 116:9245-54. [DOI: 10.1021/jp307140z] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Pei-Fang Lee
- Department of Applied Chemistry, National Chiao Tung University, 1001, Ta Hsueh Road, Hsinchu
30010, Taiwan
| | - Hiroyuki Matsui
- Department of Applied Chemistry, National Chiao Tung University, 1001, Ta Hsueh Road, Hsinchu
30010, Taiwan
| | - Wei-Yu Chen
- Department of Applied Chemistry, National Chiao Tung University, 1001, Ta Hsueh Road, Hsinchu
30010, Taiwan
| | - Niann-Shiah Wang
- Department of Applied Chemistry, National Chiao Tung University, 1001, Ta Hsueh Road, Hsinchu
30010, Taiwan
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14
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Lee PF, Matsui H, Wang NS. Study on the Reaction of CH2 with H2 at High Temperature. J Phys Chem A 2012; 116:1891-6. [DOI: 10.1021/jp211849h] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Pei-Fang Lee
- Department
of Applied Chemistry, National Chiao Tung University, 1001,
Ta Hsueh Road, Hsinchu 30010, Taiwan
| | - Hiroyuki Matsui
- Department
of Applied Chemistry, National Chiao Tung University, 1001,
Ta Hsueh Road, Hsinchu 30010, Taiwan
| | - Niann-Shiah Wang
- Department
of Applied Chemistry, National Chiao Tung University, 1001,
Ta Hsueh Road, Hsinchu 30010, Taiwan
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15
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Wu CW, Matsui H, Wang NS, Lin MC. Shock Tube Study on the Thermal Decomposition of Ethanol. J Phys Chem A 2011; 115:8086-92. [DOI: 10.1021/jp202001q] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Chih-Wei Wu
- Department of Applied Chemistry, National Chiao Tung University, 1001, Ta Hsueh Road, Hsinchu 30010, Taiwan
| | - Hiroyuki Matsui
- Department of Applied Chemistry, National Chiao Tung University, 1001, Ta Hsueh Road, Hsinchu 30010, Taiwan
| | - Niann-Shiah Wang
- Department of Applied Chemistry, National Chiao Tung University, 1001, Ta Hsueh Road, Hsinchu 30010, Taiwan
| | - M. C. Lin
- Department of Applied Chemistry, National Chiao Tung University, 1001, Ta Hsueh Road, Hsinchu 30010, Taiwan
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