Oxidative dehydrogenation of ethane and propane over Mn-based catalysts

• Published in: Catalysis letters Vol. 68; no. 1-2; pp. 59 - 62
• Main Authors: QINGJIE GE, ZHAORIGETU, B, CHUNYING YU, WENZHAO LI, HENGYONG XU
• Format: Journal Article
• Language: English
• Published: Dordrecht Springer 01.01.2000; Springer Nature B.V
• Subjects: Alkanes; Alkenes; Catalysis; Catalysts; Catalysts: preparations and properties; Chemistry; Chlorine; Dehydrogenation; Electrical resistivity; Ethane; Exact sciences and technology; General and physical chemistry; Lithium chloride; P-type semiconductors; Portland cements; Propane; Propylene; Selectivity; Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry; Mixed catalyst; Alkali metal Compounds; Catalytic reaction; Hydrocarbon; Transition metal Compounds; Ethylene; Lithium Chlorides; Portland cement; Ethane; Heterogeneous catalysis; Propene; Dehydrogenation; Alkane; Manganese Oxides; Oxidation; Propane
• ISSN: 1011-372X; 1572-879X
• DOI: 10.1023/A:1019062815632

The catalytic performances of Mn-based catalysts have been investigated for the oxidative dehydrogenation of both ethane (ODE) and propane (ODP). The results show that a LiCl/MnOx/PC (Portland cement) catalyst has an excellent catalytic performance for oxidative dehydrogenation of both ethane and propane to ethylene and propylene, more than 60% alkanes conversion and more than 80% olefins selectivity could be achieved at 650°C. In addition, the results indicate that Mn-based catalysts belong to p-type semiconductors, the electrical conductivity of which is the main factor in influencing the olefins selectivity. Lithium, chlorine and PC in the LiCl/MnOx/PC catalyst are all necessary components to keep the excellent catalytic performance at a low temperature.