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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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Lan L, Xiang J, Huang L, Huang X, Zhou W, Li H, Zhu Y, Chen S. Synthesis of a highly stable
Pt
/
CeO
2
/
Al
2
O
3
catalyst for gasoline engine emission control by adjusting
Pt
distribution. CAN J CHEM ENG 2021. [DOI: 10.1002/cjce.24191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Li Lan
- College of Materials and Mechatronics Jiangxi Science and Technology Normal University Nanchang China
- College of Food and Bioengineering Chengdu University Chengdu China
| | - Junhuai Xiang
- College of Materials and Mechatronics Jiangxi Science and Technology Normal University Nanchang China
| | - Long Huang
- College of Materials and Mechatronics Jiangxi Science and Technology Normal University Nanchang China
| | - Xin Huang
- College of Mechanical Engineering Chengdu University Chengdu China
| | - Weiqi Zhou
- College of Mechanical Engineering Chengdu University Chengdu China
| | - Hongmei Li
- College of Food and Bioengineering Chengdu University Chengdu China
| | - Yi Zhu
- College of Chemistry Biology and Environment Yuxi Normal University Yuxi China
| | - Shanhu Chen
- College of Chemistry and Chemical Engineering Jiangxi Science and Technology Normal University Nanchang China
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Li H, Rostamizadeh M, Mameri K, Boffito DC, Saadatkhah N, Rigamonti MG, Patience GS. Ultrasound assisted wet stirred media mill of high concentration LiFePO
4
and catalysts. CAN J CHEM ENG 2018. [DOI: 10.1002/cjce.23212] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- He Li
- Department of Chemical EngineeringPolytechnique Montréal C.P. 6079, Succ. CV Montréal QC, H3C 3A7 Canada
| | | | - Kahina Mameri
- Department of Chemical EngineeringPolytechnique Montréal C.P. 6079, Succ. CV Montréal QC, H3C 3A7 Canada
| | - Daria C. Boffito
- Department of Chemical EngineeringPolytechnique Montréal C.P. 6079, Succ. CV Montréal QC, H3C 3A7 Canada
| | - Nooshin Saadatkhah
- Department of Chemical EngineeringPolytechnique Montréal C.P. 6079, Succ. CV Montréal QC, H3C 3A7 Canada
| | - Marco Giulio Rigamonti
- Department of Chemical EngineeringPolytechnique Montréal C.P. 6079, Succ. CV Montréal QC, H3C 3A7 Canada
| | - Gregory S. Patience
- Department of Chemical EngineeringPolytechnique Montréal C.P. 6079, Succ. CV Montréal QC, H3C 3A7 Canada
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