Plasma-Enhanced Methane Direct Conversion over Particle-Size Adjusted MOx/Al2O3 (M = Ti and Mg) Catalysts

Autor:	Sunyoung Park, Yong-Ki Park, Palraj Kasinathan, Jong-San Chang, Woon Choon Choi, Young Kyu Hwang
Rok vydání:	2014
Předmět:	inorganic chemicals Ethylene General Chemical Engineering Inorganic chemistry Oxide General Chemistry Dielectric barrier discharge Condensed Matter Physics Methane Surfaces Coatings and Films Catalysis chemistry.chemical_compound chemistry Acetylene Particle size Selectivity
Zdroj:	Plasma Chemistry and Plasma Processing. 34:1317-1330
ISSN:	1572-8986 0272-4324
Popis:	Non-oxidative methane activation over particle-size adjusted alumina catalysts loaded with metal oxide (Al2O3, MgO/Al2O3, and TiO2/Al2O3) was investigated with a dielectric barrier discharge reactor using 10 % CH4 in Ar at plasma induced temperature. Plasma-assisted catalytic activity for direct conversion of methane over the catalysts was compared with that using plasma only. Catalyst hybrid reaction in a non-thermal discharge showed that MgO/Al2O3 had the highest activity for methane conversion. C2, C3, and C4 hydrocarbons were formed as products; ethane, ethylene, and acetylene were predominant over all catalysts. The effect of varying particle size of the MgO/Al2O3 catalyst was also examined. The conversion of methane over MgO/Al2O3 dramatically increased with decreasing catalyst particle size from 1.70 to 0.25 mm. It is interesting to note that distribution of C2 hydrocarbons was tuned by changing the particle size of the catalyst. It was also observed that the gas flow rate, frequency, and power supplied affected direct conversion of methane and selectivity of products significantly.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::1a858f9cf6370a79879b517b9f16be27 https://doi.org/10.1007/s11090-014-9574-9 Zobrazit plný text záznamu Full text from SpringerLink