CATION EFFECTS IN THE OXIDATIVE DEHYDROGENATION OF METHANE ON SULFATES

被引:15
作者
SUGIYAMA, S
MOFFAT, JB
机构
[1] UNIV WATERLOO,DEPT CHEM,WATERLOO N2L 3G1,ONTARIO,CANADA
[2] UNIV WATERLOO,GUELPH WATERLOO CTR GRAD WORK CHEM,WATERLOO N2L 3G1,ONTARIO,CANADA
关键词
METHANE; CONVERSION; OXIDATIVE DEHYDROGENATION; CATIONS; SULFATES;
D O I
10.1007/BF00770957
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The oxidative coupling of methane has been studied on Mg, Ca, Sr and Ba sulphate. The conversions and selectivities are found to be dependent on the nature of the cation and to be approximately correlated with their electronegativities, thus implying that the C-H bond scission in CH4, at least with these catalysts, is heterolytic, is rate determining, and further, that the formation of C2+ hydrocarbons is dependent, among other factors, on the concentration of methyl radicals.
引用
收藏
页码:143 / 152
页数:10
相关论文
共 3 条
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BOUDART M, 1988, CATALYTIC HIGHLIGHTS, V14, P3
[2]   JUNCTION EFFECT INTERACTIONS IN METHANOL SYNTHESIS CATALYSTS [J].
FROST, JC .
NATURE, 1988, 334 (6183) :577-580
[3]  
PONEC V, 1991, CATAL LETT, V11, P249