ACTIVATION OF METHANE;
DECOMPOSITION OF METHANE;
FORMATION OF ETHANE FROM METHANE;
FORMATION OF HYDROGEN FROM METHANE;
FORMATION OF SURFACE CARBON;
TPR STUDY OF THE REACTION OF SURFACE CARBON;
SILICA-SUPPORTED PT METALS;
D O I:
10.1007/BF00764897
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 catalytic effects of silica-supported Pt metals were tested and compared in the decomposition of methane and its conversion into higher hydrocarbons. The dissociation of methane is readily measurable at 473-673 K. The rate of initial decomposition at 523 K was the highest on Rh, but it dropped to a low value within a short contact time. The gaseous products were hydrogen and ethane in small, variable amounts. Hydrogen of the carbonaceous species formed in the decomposition led to the production of aliphatic hydrocarbons.