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Zhang Z, Wang F, Zaman M, Zhu B, Qin Y, Shen Q, Shi J, Li Y, Wang Z, Liu Q, Liu S, Li G, Zhang X. Mechanistic insights on the preparation of 5-methyl-2-hexanone by hydrogenation of 5-methyl-3-hexen-2-one using Pd/Al 2O 3 catalysts. J Colloid Interface Sci 2024; 677:895-908. [PMID: 39126808 DOI: 10.1016/j.jcis.2024.07.251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2024] [Revised: 07/13/2024] [Accepted: 07/30/2024] [Indexed: 08/12/2024]
Abstract
5-methyl-2-hexanone is used as a versatile polymerization solvent for industrial preparation processes of bulk and fine chemicals. An efficient catalyst, Pd/γ-Al2O3, is reported for the preparation of 5-methyl-2-hexanone by selective hydrogenation of 5-methyl-3-hexen-2-one. The catalyst exhibits remarkable activity and selectivity even at atmospheric pressure and low temperature (1 atm, 80 °C). The influence weight of reaction conditions on the reaction process was obtained through the Artificial Neural Network model, which were reaction pressure, reaction temperature and liquid hourly space velocity in order. The reaction kinetics and mechanism of 5-methyl-2-hexanone preparation by hydrogenation over Pd/γ-Al2O3 catalyst were investigated. The hydrogenation reaction pathway of 5-methyl-3-hexen-2-one was obtained by using Density functional theory calculations, and the mechanism of selective hydrogenation of CC double bonds and CO double bonds was revealed. A kinetic model based on the LHHW model assumption was also proposed and compared with experimental results demonstrating good predictability.
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Affiliation(s)
- Zhiwei Zhang
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Fumin Wang
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Muhammad Zaman
- Department of Chemical Engineering, Pakistan Institute of Engineering and Applied Sciences (PIEAS), Islamabad 45650, Pakistan
| | - Bingxin Zhu
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Yang Qin
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Qi Shen
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Jinhua Shi
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Yongwang Li
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Zheng Wang
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Qingzhao Liu
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Shuai Liu
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Guobing Li
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China.
| | - Xubin Zhang
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China.
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Ren Y, El Baramoussi EM, Daële V, Mellouki A. Atmospheric chemistry of ketones: Reaction of OH radicals with 2-methyl-3-pentanone, 3-methyl-2-pentanone and 4-methyl-2-pentanone. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 780:146249. [PMID: 34030329 DOI: 10.1016/j.scitotenv.2021.146249] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2021] [Revised: 02/22/2021] [Accepted: 02/27/2021] [Indexed: 06/12/2023]
Abstract
This work reports new kinetic and mechanistic information on the atmospheric chemistry of ketones. Both absolute and relative rate methods were used to determine the rate constants for OH reactions with 2-methyl-3-pentanone (2M3P), 3-methyl-2-pentanone (3M2P) and 4-methyl-2-pentanone (4M2P), three widely used compounds in the industry. This work constitutes the first temperature dependence study of the reactions of OH with 2M3P and 3M2P. The following rate constants values are recommended at 298 K (in 10-12 cm3 molecule-1 s-1): kOH+2M3P = 3.49 ± 0.5; kOH+3M2P = 6.02 ± 0.14 and kOH+4M2P = 11.02 ± 0.42. The following Arrhenius expressions (in units of cm3 molecule-1 s-1) adequately describe the measured rate constants for OH reactions with 2M3P and 3M2P in the temperature range 263-373 K: k2M3P = (2.33 ± 0.06) × 10-12 exp((127.4 ± 18.6)/T) and k3M2P = (1.05 ± 0.14) × 10-12 exp((537 ± 41)/T). Products studies from the reactions of OH with the investigated ketones were conducted in a 7.3 m3 simulation chamber using PTR-ToF-MS, UHPLC-MS and GC-MS. A series of short chain carbonyl compounds including formaldehyde, acetone, acetaldehyde, 2-butanone and 2-methypropanal were observed as products. Combining the yields of carbonyls measured with those estimated from the SAR method, we propose various mechanistic degradation schemes of the investigated ketones initiated by reaction with OH radicals.
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Affiliation(s)
- Yangang Ren
- Institut de Combustion, Aérothermique, Réactivité et Environnement (ICARE), CNRS (UPR 3021), Observatoire des Sciences de l'Univers en région Centre (OSUC), 1C Avenue de la Recherche Scientifique, 45071 Orléans Cedex 2, France
| | - El Mehdi El Baramoussi
- Earth Sciences Department, Scientific Institute, Mohammed V- University, Rabat 10106, Morocco
| | - Véronique Daële
- Institut de Combustion, Aérothermique, Réactivité et Environnement (ICARE), CNRS (UPR 3021), Observatoire des Sciences de l'Univers en région Centre (OSUC), 1C Avenue de la Recherche Scientifique, 45071 Orléans Cedex 2, France
| | - Abdelwahid Mellouki
- Institut de Combustion, Aérothermique, Réactivité et Environnement (ICARE), CNRS (UPR 3021), Observatoire des Sciences de l'Univers en région Centre (OSUC), 1C Avenue de la Recherche Scientifique, 45071 Orléans Cedex 2, France; Environment Research Institute, School of Environmental Science and Engineering, Shandong University, Qingdao 266237, China.
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3
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Ren Y, Wang J, Grosselin B, Daële V, Mellouki A. Kinetic and product studies of Cl atoms reactions with a series of branched Ketones. J Environ Sci (China) 2018; 71:271-282. [PMID: 30195685 DOI: 10.1016/j.jes.2018.03.036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2018] [Revised: 03/22/2018] [Accepted: 03/23/2018] [Indexed: 06/08/2023]
Abstract
The rate constants for the Cl atom reaction with three branched ketones have been measured at 298±2K and 760Torr using the relative rate method in the absence of NO. The rate constants values obtained (in units of 10-10cm3/(molecule·sec)) are: k(2-methyl-3-pentanone)=1.07±0.26, k(3-methyl-2-pentanone)=1.21±0.26, and k(4-methyl-2-pentanone)=1.35±0.27. Combining the chemical kinetic data obtained by this study with those reported for other ketones, a revised Structure Activity Relationship (SAR) parameter and R group reactivity (kR) of R(O)R' and CHx (x=1, 2, 3) group reactivity (kCHx) toward Cl atoms were proposed. In addition, the products from the three reactions in the presence of NO were also identified and quantified by using PTR-ToF-MS and GC-FID, and the yields of the identified products are: acetone (39%±8%)+ethanal (78%±12%), 2-butanone (22%±2%)+ethanal (75%±10%)+propanal (14%±1%) and acetone (26%±3%)+2-methylpropanal (24%±2%), for Cl atoms reaction with 2-methyl-3-pentanone, 3-methyl-2-pentanone and 4-methyl-2-pentanone, respectively. Based on the obtained results, the reaction mechanisms of Cl atoms with these three ketones are proposed.
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Affiliation(s)
- Yangang Ren
- Institut de Combustion, Aérothermique, Réactivité et Environnement (ICARE), CNRS (UPR 3021), 1C Avenue de la Recherche Scientifique, 45071 Orléans Cedex 2, France
| | - Jinhe Wang
- School of Municipal and Environmental Engineering, Shandong Jianzhu University, Jinan 250101, China
| | - Benoit Grosselin
- Institut de Combustion, Aérothermique, Réactivité et Environnement (ICARE), CNRS (UPR 3021), 1C Avenue de la Recherche Scientifique, 45071 Orléans Cedex 2, France
| | - Véronique Daële
- Institut de Combustion, Aérothermique, Réactivité et Environnement (ICARE), CNRS (UPR 3021), 1C Avenue de la Recherche Scientifique, 45071 Orléans Cedex 2, France
| | - Abdelwahid Mellouki
- Institut de Combustion, Aérothermique, Réactivité et Environnement (ICARE), CNRS (UPR 3021), 1C Avenue de la Recherche Scientifique, 45071 Orléans Cedex 2, France.
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4
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Farrugia L, Bejan I, Smith S, Medeiros D, Seakins P. Revised structure activity parameters derived from new rate coefficient determinations for the reactions of chlorine atoms with a series of seven ketones at 290 K and 1 atm. Chem Phys Lett 2015. [DOI: 10.1016/j.cplett.2015.09.055] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Poutsma ML. Evolution of Structure–Reactivity Correlations for the Hydrogen Abstraction Reaction by Chlorine Atom. J Phys Chem A 2013; 117:687-703. [DOI: 10.1021/jp310970t] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Marvin L. Poutsma
- Chemical Sciences Division, Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, Tennessee
37831-6197, United States
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Gierczak T, Rajakumar B, Flad JE, Burkholder JB. Rate coefficients for the reaction of the acetyl radical, CH3CO, with Cl2between 253 and 384 K. INT J CHEM KINET 2009. [DOI: 10.1002/kin.20430] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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7
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Kaiser EW, Wallington TJ, Hurley MD. Products and Mechanism of the Reaction of Cl with Butanone in N2/O2 Diluent at 297−526 K. J Phys Chem A 2009; 113:2424-37. [DOI: 10.1021/jp809169h] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- E. W. Kaiser
- Department of Natural Sciences, University of Michigan—Dearborn, 4901 Evergreen Road, Dearborn, Michigan 48128, and System Analytics and Environmental Science Department, Research and Innovation Center, Ford Motor Company, Mail Drop RIC-2122, Dearborn, Michigan 48121-2053
| | - T. J. Wallington
- Department of Natural Sciences, University of Michigan—Dearborn, 4901 Evergreen Road, Dearborn, Michigan 48128, and System Analytics and Environmental Science Department, Research and Innovation Center, Ford Motor Company, Mail Drop RIC-2122, Dearborn, Michigan 48121-2053
| | - M. D. Hurley
- Department of Natural Sciences, University of Michigan—Dearborn, 4901 Evergreen Road, Dearborn, Michigan 48128, and System Analytics and Environmental Science Department, Research and Innovation Center, Ford Motor Company, Mail Drop RIC-2122, Dearborn, Michigan 48121-2053
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8
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Gravestock TJ, Blitz MA, Heard DE. A Kinetic and Spectroscopic Study of the CH3I−Cl and ICH2I−Cl Adducts. J Phys Chem A 2008; 112:9544-54. [DOI: 10.1021/jp800372c] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
| | - M. A. Blitz
- School of Chemistry, University of Leeds, Leeds, LS2 9JT, U.K
| | - D. E. Heard
- School of Chemistry, University of Leeds, Leeds, LS2 9JT, U.K
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9
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Zhao Z, Huskey DT, Nicovich JM, Wine PH. Temperature-dependent kinetics study of the gas-phase reactions of atomic chlorine with acetone, 2-butanone, and 3-pentanone. INT J CHEM KINET 2008. [DOI: 10.1002/kin.20321] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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10
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Kaiser EW, Wallington TJ. Rate Constants for the Reaction of Cl with a Series of C4 to C6 Ketones Using the Relative Rate Method. J Phys Chem A 2007; 111:10667-70. [PMID: 17914780 DOI: 10.1021/jp075088i] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Rate constants for the reaction of Cl with eight ketones were measured relative to the rate constant of propane in approximately 900 Torr of N2 at ambient temperature. Experiments were carried out in a Pyrex reactor with GC analysis of the consumption of the ketones and propane. Chlorine atoms were generated by irradiation of Cl2 in the initial mixture using a black-light-blue fluorescent lamp. The rate constants determined in these experiments (10-11 cm3 molecule-1 s-1) are: butanone (3.8 +/- 0.3); 2-pentanone (11.6 +/- 1.0); 3-pentanone (8.3 +/- 0.7); 2-hexanone (19.4 +/- 1.9); 3-hexanone (15.3 +/- 1.1); cyclopentanone (10.4 +/- 0.9); 3-methyl-2-butanone (6.2 +/- 0.5); and 4-methyl-2-pentanone (12.8 +/- 1.0). The results for 2-pentanone, 3-pentanone, 2-hexanone, 3-hexanone, 3-methyl-2-butanone, and 4-methyl-2-pentanone are significantly higher (by a factor of 3 for 2-hexanone) than reported in two previous absolute rate studies. The likely explanation for this discrepancy is discussed.
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Affiliation(s)
- E W Kaiser
- Department of Natural Sciences, 4901 Evergreen Road, University of Michigan - Dearborn, Dearborn, Michigan 48128, USA.
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11
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Takahashi K, Iwasaki E, Matsumi Y, Wallington TJ. Pulsed Laser Photolysis Vacuum UV Laser-Induced Fluorescence Kinetic Study of the Gas-Phase Reactions of Cl( 2P 3/2) Atoms with C 3−C 6 Ketones. J Phys Chem A 2007. [DOI: 10.1021/jp074638+] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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12
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Tackett PJ, Cavender AE, Keil AD, Shepson PB, Bottenheim JW, Morin S, Deary J, Steffen A, Doerge C. A study of the vertical scale of halogen chemistry in the Arctic troposphere during Polar Sunrise at Barrow, Alaska. ACTA ACUST UNITED AC 2007. [DOI: 10.1029/2006jd007785] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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13
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Takahashi K, Iwasaki E, Matsumi Y, Wallington TJ. Pulsed Laser Photolysis Vacuum UV Laser-Induced Fluorescence Kinetic Study of the Gas-Phase Reactions of Cl(2P3/2) Atoms with C3−C6 Ketones. J Phys Chem A 2007; 111:1271-6. [PMID: 17266289 DOI: 10.1021/jp066410c] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The gas-phase reactions of Cl atoms with acetone, butanone, 2-pentanone, 3-pentanone, 2-hexanone, 3-hexanone, and cyclopentanone at 295 +/- 2 K were studied using pulsed laser photolysis vacuum UV laser-induced fluorescence (PLP-LIF) techniques. Cl(2P(3/2)) atoms were produced by photolysis of Cl2 at 351 nm and monitored by LIF spectroscopy at 134.72 nm (3p(5) 2P(3/2)-3p(4)4s 2P(3/2) transition). Rate coefficients for reactions of Cl atoms with acetone, butanone, 2-pentanone, 3-pentanone, 2-hexanone, 3-hexanone, and cyclopentanone are (2.30 +/- 0.12) x 10(-12), (4.08 +/- 0.21) x 10(-11), (1.23 +/- 0.13) x 10(-10), (8.87 +/- 0.92) x 10(-11), (2.08 +/- 0.32) x 10(-10), (1.43 +/- 0.19) x 10(-10) and (1.16 +/- 0.12) x 10(-10) cm3 molecule(-1) s(-1), respectively. The results for acetone and butanone are consistent with previous studies. The results for 2-pentanone, 3-pentanone, 2-hexanone, and 3-hexanone are approximately a factor of 2-3 higher than those from previous absolute rate studies. Likely explanations for these discrepancies are discussed. Tropospheric lifetimes of ketones with respect to reaction with Cl atoms are estimated and discussed.
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Affiliation(s)
- Kenshi Takahashi
- Solar-Terrestrial Environment Laboratory and Graduate School of Science, Nagoya University, 3-13 Hohohara, Toyokawa, Aichi 442-8507, Japan.
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Ballesteros B, Garzón A, Jiménez E, Notario A, Albaladejo J. Relative and absolute kinetic studies of 2-butanol and related alcohols with tropospheric Cl atoms. Phys Chem Chem Phys 2007; 9:1210-8. [PMID: 17325767 DOI: 10.1039/b614531k] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
A newly constructed chamber/Fourier transform infrared system was used to determine the relative rate coefficient, k(i), for the gas-phase reaction of Cl atoms with 2-butanol (k(1)), 2-methyl-2-butanol (k(2)), 3-methyl-2-butanol (k(3)), 2,3-dimethyl-2-butanol (k(4)) and 2-pentanol (k(5)). Experiments were performed at (298 +/- 2) K, in 740 Torr total pressure of synthetic air, and the measured rate coefficients were, in cm(3) molecule(-1) s(-1) units (+/-2sigma): k(1)=(1.32 +/- 0.14) x 10(-10), k(2)=(7.0 +/- 2.2) x 10(-11), k(3)=(1.17 +/- 0.14) x 10(-10), k(4)=(1.03 +/- 0.17) x 10(-10) and k(5)=(2.18 +/- 0.36) x 10(-10), respectively. Also, all the above rate coefficients (except for 2-pentanol) were investigated as a function of temperature (267-384 K) by pulsed laser photolysis-resonance fluorescence (PLP-RF). The obtained kinetic data were used to derive the Arrhenius expressions: k(1)(T)=(6.16 +/- 0.58) x 10(-11)exp[(174 +/- 58)/T], k(2)(T)=(2.48 +/- 0.17) x 10(-11)exp[(328 +/- 42)/T], k(3)(T)=(6.29 +/- 0.57) x 10(-11)exp[(192 +/- 56)/T], and k(4)(T)=(4.80 +/- 0.43) x 10(-11)exp[(221 +/- 56)/T](in units of cm(3) molecule(-1) s(-1) and +/-sigma). Results and mechanism are discussed and compared with the reported reactivity with OH radicals. Some atmospheric implications derived from this study are also reported.
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Affiliation(s)
- Bernabé Ballesteros
- Universidad de Castilla-La Mancha, Departamento de Química Física, Facultad de Ciencias Químicas, Avenida de Camilo José Cela 10, 13071 Ciudad Real, Spain
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Taketani F, Matsumi Y, Wallington T, Hurley M. Kinetics of the gas phase reactions of chlorine atoms with a series of ketones. Chem Phys Lett 2006. [DOI: 10.1016/j.cplett.2006.09.101] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Garzón A, Cuevas CA, Ceacero AA, Notario A, Albaladejo J, Fernández-Gómez M. Atmospheric reactions Cl+CH3–(CH2)n–OH (n=0–4): A kinetic and theoretical study. J Chem Phys 2006; 125:104305. [PMID: 16999524 DOI: 10.1063/1.2244556] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The reactions of Cl with a series of linear alcohols: methanol (k1), ethanol (k2), 1-propanol (k3), 1-butanol (k4), and 1-pentanol (k5) were investigated as a function of temperature in the range of 264-382 K by laser photolysis-resonance fluorescence. The obtained kinetic data were used to derive the following Arrhenius expressions: k1=(3.55+/-0.22)x10(-10) exp[-(559+/-40)T], k2=(5.25+/-0.52)x10(-11) exp[(190+/-68)T], k3=(2.63+/-0.21)x10(-11) exp[(525+/-51)T], k4=(3.12+/-0.31)x10(-11) exp[(548+/-65)T], and k5=(3.97+/-0.48)x10(-11) exp[(533+/-77)T] (in units of cm(3) molecule(-1) s(-1)). To our knowledge, these are the first absolute kinetic data reported for 1-butanol and 1-pentanol and also the first kinetic study as a function of temperature for these two compounds. Results, mechanism, and tropospheric implications are discussed and compared with the reported reactivity with OH radicals. Moreover, a theoretical insight into the mechanisms of these reactions has also been pursued through ab initio Möller-Plesset second-order perturbation treatment calculations with 6-311G** basis sets. Optimized geometries and vibrational frequencies have been obtained for transition states and molecular complexes appearing along the different reaction pathways. Furthermore, molecular energies have been calculated at quadratic configuration interaction with single, double, and triple excitations level in order to get an estimation of the activation energies.
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Affiliation(s)
- Andrés Garzón
- Facultad de CC Químicas, Universidad de Castilla La Mancha, Avenida Camilo José Cela no. 10, 13071 Ciudad Real, Spain
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