Co-Mg-Mn COMPOSITE CATALYSTS FOR PARTIAL OXIDATION OF NATURAL GAS
Ключевые слова:
catalytic oxidation, methane, synthesis-gas, cobalt, magnesium.Аннотация
The problem of rational utilization of natural and associated petroleum gases and the cessation of
their flaring is one of the acute and unresolved environmental problems. The aim of this work is to develop effective
thermally stable catalysts of a new generation for the processes of oxidative conversion of light alkanes of natural
and associated gas into synthesis gas. The results of partial oxidation of the methane of natural gas on the catalysts
prepared by solution combustion synthesis are presented. Investigation of the activity of catalysts produced from
initial mixture of Co(NO3)2 - Al(NO3)3 - Mg(NO3)2 - Mn(NO3)2 + urea of different composition was carried out for
the production of synthesis-gas. It was found that the optimal conditions for producing of synthesis-gas are: CH4
conversion - 98%, yield of target products: Н2 - 98 - 99% and СО - 40 - 43%, Т = 900о
С, space velocity - 2500 h-1.
The catalysts were studied by X-ray diffraction, transmission electron microscopy, specific surface area, pore volume
and average pore diameter. The presence in the catalysts of simple and mixed oxides, metal aluminates and spineltype structures, the presence of which contributes to the active work of catalysts for oxidative conversion of CH4, has
been established.
