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3D Hollow Mg-Ca-Al Hydrotalcite-Like Compounds Doped with KF for Catalytic Transesterification. INTERNATIONAL JOURNAL OF CHEMICAL ENGINEERING 2023. [DOI: 10.1155/2023/9944183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/02/2023]
Abstract
Herein, a kind of three-dimensional hollow Mg-Ca-Al hydrotalcite-like compounds (HTLCs) microsphere was prepared by self-assembly of hydrotalcite-like nanosheets. Mg-Ca-Al HTLCs microsphere (MS) has large specific surface area and large pore size, and the modification of KF·2H2O increases numerous alkaline active sites on the surface of the catalyst. The prepared catalyst has excellent catalytic effect for the production of biodiesel by transesterification. Under the optimal conditions of the catalyst addition amount which accounts for 2% of the weight of oil, the biodiesel yield of the best catalyst is as high as 92% within 30 minutes. This article also provides a paradigm of a rational structural design for regulating the morphology of HTLCs.
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Yu X, Chen X, Meng W, Zhu M. Research progress on supported solid superbase and its catalytic application. CHEMICAL PAPERS 2021. [DOI: 10.1007/s11696-021-01669-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Highly Selective Reduction of Bio-Based Furfural to Furfuryl Alcohol Catalyzed by Supported KF with Polymethylhydrosiloxane (PMHS). J CHEM-NY 2020. [DOI: 10.1155/2020/4809127] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Hydrogenation of bio-based furfural (FUR) to furfuryl alcohol (FFA) is tremendously expanding the application of biomass in many industries such as resins, biofuels, and pharmaceuticals. However, mass manufacture of FFA from FUR is restrained by strict requirements of reaction conditions and expensive catalysts. In this work, an economical and benign catalytic system, containing an easily prepared and reusable catalyst 5 wt.% KF/ZrO2 and a low-cost hydrogen source polymethylhydrosiloxane (PMHS), was developed to be efficient for the hydrogenation of FUR to high-value FFA under mild conditions. The catalyst reactivity was found to be remarkably influenced by the support acid-base properties and KF loading doge. In the presence of 5 wt.% KF/ZrO2, a high FFA yield of 97% and FUR conversion of 99% could be obtained at 25°C in just 0.5 h, which was superior to those attained with other tested catalysts. The KF/ZrO2 catalyst could be recycled at least five times, with the FFA yield slightly decreasing from 97% to 71%. The spare decrease in FFA yield is possibly attributed to the catalyst pore blocking, as clarified by SEM, BET, XPS, and ICP-MS measurements of the fresh and reused catalysts.
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Pan L, Zhao X, Wu M, Xiang F, Li Y, Liu Y. Synthesis of a Stable, Water‐Tolerant, Short Mesoporous Organic Biguanide, Strong Solid Base and Its Application in Catalysis. ChemistrySelect 2019. [DOI: 10.1002/slct.201903299] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Langsheng Pan
- School of Chemical EngineeringXiangtan University Xiangtan 411105 P.R. China
- National & Local United Engineering Research Center for Chemical process Simulation and IntensificationXiangtan University Xiangtan 411105 P.R. China
| | - Xiaoyu Zhao
- School of Chemical EngineeringXiangtan University Xiangtan 411105 P.R. China
| | - Mei Wu
- School of Chemical EngineeringXiangtan University Xiangtan 411105 P.R. China
| | - Fuyun Xiang
- School of Chemical EngineeringXiangtan University Xiangtan 411105 P.R. China
| | - Yongfei Li
- School of Chemical EngineeringXiangtan University Xiangtan 411105 P.R. China
- National & Local United Engineering Research Center for Chemical process Simulation and IntensificationXiangtan University Xiangtan 411105 P.R. China
| | - Yuejin Liu
- School of Chemical EngineeringXiangtan University Xiangtan 411105 P.R. China
- National & Local United Engineering Research Center for Chemical process Simulation and IntensificationXiangtan University Xiangtan 411105 P.R. China
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Pan L, Xiang F, Cheng Z, Zhao X, Fu L, Li Y, Liu Y. Synthesis of Biodiesel from Soybean Oil with Methanol Catalyzed by Ni‐Doped CaO‐MgO Catalysts. ChemistrySelect 2019. [DOI: 10.1002/slct.201902463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Langsheng Pan
- School of Chemical EngineeringXiangtan University Xiangtan 411105 P.R. China
- National & Local United Engineering Research Center for Chemical process Simulation and IntensificationXiangtan University Xiangtan 411105 P.R. China
| | - Fuyun Xiang
- School of Chemical EngineeringXiangtan University Xiangtan 411105 P.R. China
| | - Zhipeng Cheng
- School of Chemical EngineeringXiangtan University Xiangtan 411105 P.R. China
| | - Xiaoyu Zhao
- School of Chemical EngineeringXiangtan University Xiangtan 411105 P.R. China
| | - Lin Fu
- School of Chemical EngineeringXiangtan University Xiangtan 411105 P.R. China
| | - Yongfei Li
- School of Chemical EngineeringXiangtan University Xiangtan 411105 P.R. China
- National & Local United Engineering Research Center for Chemical process Simulation and IntensificationXiangtan University Xiangtan 411105 P.R. China
| | - Yuejin Liu
- School of Chemical EngineeringXiangtan University Xiangtan 411105 P.R. China
- National & Local United Engineering Research Center for Chemical process Simulation and IntensificationXiangtan University Xiangtan 411105 P.R. China
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