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Zhou C, Li W, Qiu M, Li W, Liu H, Liu H, Zhang K, Chen X. Precisely regulating the acidity of mesoporous silica on the catalytic performance of 1-decene oligomerization. NEW J CHEM 2021. [DOI: 10.1039/d1nj00279a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Optimization of the acidity of Al-MCM-41 catalysts to improve the catalytic performance of 1-decene oligomerization.
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Affiliation(s)
- Cunhui Zhou
- Department of Chemistry
- School of Science
- Shanghai University
- Shanghai 201900
- China
| | - Wenqian Li
- CAS Key Laboratory of Low-Carbon Conversion Science and Engineering
- Shanghai Advanced Research Institute
- Chinese Academy of Science
- Shanghai 201210
- China
| | - Minghuang Qiu
- CAS Key Laboratory of Low-Carbon Conversion Science and Engineering
- Shanghai Advanced Research Institute
- Chinese Academy of Science
- Shanghai 201210
- China
| | - Wanting Li
- CAS Key Laboratory of Low-Carbon Conversion Science and Engineering
- Shanghai Advanced Research Institute
- Chinese Academy of Science
- Shanghai 201210
- China
| | - Honglei Liu
- CAS Key Laboratory of Low-Carbon Conversion Science and Engineering
- Shanghai Advanced Research Institute
- Chinese Academy of Science
- Shanghai 201210
- China
| | - Hongjiang Liu
- Department of Chemistry
- School of Science
- Shanghai University
- Shanghai 201900
- China
| | - Kun Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai 200062
- China
| | - Xinqing Chen
- CAS Key Laboratory of Low-Carbon Conversion Science and Engineering
- Shanghai Advanced Research Institute
- Chinese Academy of Science
- Shanghai 201210
- China
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2
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Selective Trimerization of α-Olefins with Immobilized Chromium Catalyst for Lubricant Base Oils. Catalysts 2020. [DOI: 10.3390/catal10090990] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
The demand for poly(α-olefin)s (PAOs), which are high-performance group IV lubricant base oils, is increasingly high. PAOs are generally produced via the cationic oligomerization of 1-decene, wherein skeleton rearrangement inevitably occurs in the products. Hence, a transition-metal-based catalytic process that avoids rearrangement would be a valuable alternative for cationic oligomerization. In particular, transition-metal-catalyzed selective trimerization of α-olefins has the potential for success. In this study, (N,N′,N″-tridodecyltriazacyclohexane)CrCl3 complex was reacted with MAO-silica (MAO, methylaluminoxane) for the preparation of a supported catalyst, which exhibited superior performance in selective α-olefin trimerization compared to that of the corresponding homogeneous catalyst, enabling the preparation of α-olefin trimers at ~200 g scale. Following hydrogenation, the prepared 1-decene trimer (C30H62) exhibited better lubricant properties than those of commercial-grade PAO-4 (kinematic viscosity at 40 °C, 15.1 vs. 17.4 cSt; kinematic viscosity at 100 °C, 3.9 vs. 3.9 cSt; viscosity index, 161 vs. 123). Moreover, it was shown that 1-octene/1-dodecene mixed co-trimers (i.e., a mixture of C24H50, C28H58, C32H66, and C36H74), generated by the selective supported Cr catalyst, exhibited outstanding lubricant properties analogous to those observed for the 1-decene trimer (C30H62).
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Zeng Y, Wang B, Li Y, Yan X, Chen L, Wang Y. Ba-Doped Pd/Al2O3 for Continuous Synthesis of Diphenylamine via Dehydrogenative Aromatization. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.9b04567] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yuyao Zeng
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, People’s Republic of China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, People’s Republic of China
| | - Bowei Wang
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, People’s Republic of China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, People’s Republic of China
- Tianjin Engineering Research Center of Functional Fine Chemicals, Tianjin 300350, People’s Republic of China
| | - Yang Li
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, People’s Republic of China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, People’s Republic of China
- Tianjin Engineering Research Center of Functional Fine Chemicals, Tianjin 300350, People’s Republic of China
| | - Xilong Yan
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, People’s Republic of China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, People’s Republic of China
- Tianjin Engineering Research Center of Functional Fine Chemicals, Tianjin 300350, People’s Republic of China
| | - Ligong Chen
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, People’s Republic of China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, People’s Republic of China
- Tianjin Engineering Research Center of Functional Fine Chemicals, Tianjin 300350, People’s Republic of China
| | - Yue Wang
- Department of Chemical Engineering, Renai College of Tianjin University, Tianjin 301636, People’s Republic of China
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Fallahi M, Ahmadi E, Mohamadnia Z. Effect of inorganic oxide supports on the activity of chromium‐based catalysts in ethylene trimerization. Appl Organomet Chem 2019. [DOI: 10.1002/aoc.4975] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Maryam Fallahi
- Department of ChemistryUniversity of Zanjan PO Box 45195‐313 Zanjan Iran
| | - Ebrahim Ahmadi
- Department of ChemistryUniversity of Zanjan PO Box 45195‐313 Zanjan Iran
| | - Zahra Mohamadnia
- Department of ChemistryInstitute for Advanced Studies in Basic Sciences (IASBS) Zanjan 45137‐66731 Iran
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