Effect of Reaction Conditions on the Formation of the Products of Oxidative Pyrolysis of Methane on the Resistive Fechral Catalyst

被引：0

作者：

Sigaeva, S. S. ^{[1
]}

Sleptyrev, A. A. ^{[1
]}

Temerev, V. L. ^{[1
]}

Tsyrul'nikov, P. G. ^{[1
]}

机构：

[1] Russian Acad Sci, Inst Hydrocarbons Proc, Siberian Branch, Ul Neftezavodskaya 54, Omsk 644040, Russia

来源：

CHEMISTRY FOR SUSTAINABLE DEVELOPMENT | 2013年 / 21卷 / 01期

关键词：

catalytic pyrolysis; methane; Fechral; resistive catalysts;

D O I：

暂无

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The effect of reaction conditions (methane concentration, flow rate, catalyst position, gas dynamic mode) on methane pyrolysis within temperature range 700-1200 degrees C on preliminarily annealed Fechral wire heated with electric current, at a ratio CH4/O-2 = 15 : 1 was investigated. It was shown that independently of conditions the process runs in two temperature regions differing in the selectivity of the formation of major products -C-2 hydrocarbons. Reaction conditions have a substantial effect on methane conversion and selectivity with respect to reaction products. The maximal selectivity with respect to C-2 products can be achieved with the transversal coil position to the gas flow and with the use of flow-circulation set-up instead of flow one. An increase in methane concentration in the initial mixture has ambiguous effect on the selectivity with respect to C-2 hydrocarbons within different temperature ranges: for temperature not higher than 1000 degrees C, this causes an increase in selectivity with respect to ethylene and acetylene, while at 1000 degrees C and above this causes a decrease in selectivity with respect to these components.

引用

页码：83 / 90

页数：8

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