Studying the influence of the catalytic effect of transition metals and their oxides on the process of steam gasification of stone coal

Abstract

Studying the process of steam gasification of stone coal continues. The study of the process occurs in the conditions of aerosol nanocatalysis technology (AnC). The aerosol nanocatalysis technology is a fundamentally new, simple and competitive catalysis technology without the use of a carrier. This is a technology for the implementation of heterogeneous catalytic processes, based on mechanochemical effects. Mechanochemical effects result from mechanical effects on the catalytically active component. The rotation reactor of aerosol nanocatalysis is a multipurpose purpose. The scheme of the laboratory installation with the rotating reactor has been modified to study the process of coal gasification. The main feature of this process is the formation and activation of catalyst nanoparticles. Which is realized by means of rotation of the reactor. Mechanochemical activation increases the reactivity of the catalyst particles, which leads to an increase in the rate of chemical reactions. The efficiency of gasification processes can be significantly improved by using suitable catalysts that allow to lower the temperature while maintaining the high speed of the process and to regulate the composition of the products. The effect of catalysts on the composition of the synthesis gas in the conditions of the aerosol nanocatalysis technology was investigated. For this purpose, were taken the catalysts, which are most widely used in the process of steam gasification of coal. The influence of each of the catalysts used in the study on the change in the content of hydrogen, carbon monoxide, carbon dioxide, methane, ethylene, ethane in the resulting synthesis gas is determined. Justification of the choice of catalyst to obtain a synthesis gas of one or another composition was given. The opportunity the obtaining of synthesis gas, the composition of which is favorable for the production of methanol, was considered. When processing the research data, the relative error, confidence probability and accuracy of approximation were calculated. Values of the obtained accuracy indicators show a satisfactory level of compliance of measurements with true values.