EFFECT OF THE METHOD OF CATALYSTS PREPARING FOR THEIR ACTIVITY IN THE FISCHER -TROPSH SYNTHESIS

摘要

Depletion of oil fields developed now and the deterioration of environmental safety in many countries have contributed to the search for alternative fuels. Fischer -Tropsh Synthesis (SFT) is currently one of the most promising methods of obtaining components of motor fuels. The value obtained on the basis SFT fuel fractions is largely due to their high environmental characteristics [1]. Fischer-Tropsch synthesis (FTS) runs with catalysts [2]. The catalysts used for the implementation of the Fischer-Tropsch process are complex systems containing the active component (a transition metal of Group VIII), one or more promoters and a carrier. As the active catalyst component mainly used cobalt or iron. Comparative analysis of iron and cobalt catalysts is shown in many reviews [3]. The main difference between cobalt systems is their large hydrogenation activity and inertia in the reaction of water gas compared with iron. Cheapness of iron catalysts compared with cobalt to a certain extent compensated by the greater stability of a cobalt-based catalysts. Investigations of cobalt catalysts are engaged by many scholars, the works are in search of the optimal carrier providing stabilization of cobalt nanoparticles with a size of 6-9 tun, as well as a method of activation of the cobalt catalyst excluding high-temperature reduction [4].