Effect of Organic Auxiliary Chemical-Glycerin on the Morphology Properties and Catalytic Performance of MCM-22
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概要
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MCM-22 zeolites with various morphology properties including BET surface area, pore volume and platelet size were synthesized using glycerin as the auxiliary chemical (AC) under dynamic hydrothermal conditions. The products had been characterized by means of XRD, BET, TG-DSC, FT-IR and SEM techniques. Depending on the amount of the auxiliary chemical, the BET specific surface area of MCM-22 could be controlled up to 483 m2·g–1. Moreover, the alkylation of benzene with propylene was carried out under liquid-phase reaction over the prepared MCM-22 zeolite. The results showed that, in the alkylation catalyzed by the MCM-22 obtained using glycerin as the AC with the molar ratio of AC/SiO2 = 1.0, the selectivity of cumene was improved to 80.8%, which was about 5.0% higher than that in the alkylation catalyzed by the material obtained without using auxiliary chemical. Finally, a conceivable mechanism of catalytic performance improvement in the presence of glycerin as the auxiliary chemical is discussed.
- 2009-03-01
著者
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Chen Biaohua
State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology
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Chen Biaohua
State Key Laboratory Of Chemical Resource Engineering Beijing University Of Chemical Technology
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SUN Xiaoyan
State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology
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LI Jianwei
State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology
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HANG Chunyan
State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology
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LI Yingxia
State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology
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Li Yingxia
State Key Laboratory Of Chemical Resource Engineering Beijing University Of Chemical Technology
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Li Jianwei
State Key Laboratory Of Chemical Resource Engineering Beijing University Of Chemical Technology
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Hang Chunyan
State Key Laboratory Of Chemical Resource Engineering Beijing University Of Chemical Technology
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Sun Xiaoyan
State Key Laboratory Of Chemical Resource Engineering Beijing University Of Chemical Technology
関連論文
- Synthesis of Zeolite β and Its Performance in Catalytic Cracking
- Effect of Organic Auxiliary Chemical-Glycerin on the Morphology Properties and Catalytic Performance of MCM-22
- Synthesis of Zeolite β and Its Performance in Catalytic Cracking
- How Does Methanol Assist the Hydrogen Transfer in Pd-catalyzed Cyclocarbonylation of Allylic Alcohols? : Insights from a DFT Study