Abstract
This article shows main principles and presents ideas described in the scientific and technical literature, on the mechanism of interaction of microwave radiation with a solid phase materials, which were used as a basis of creation of new perspective, energy efficient and environmentally safe technologies of preparation of heterogeneous catalysts for the reactions which were carried out under the influence of electro-magnetic radiation of microwave radiation. Author’s research results confirm possibilities of practical use of proposed method of hydrothermal oxidation of industrial low-dispersing of aluminum powders with presence of bulk phase of Al(ОН)3·nH2O, with further thermal treatment in microwave field for acquisition of armored А1/А12О33 compositions, which effectively consume energy of microwave radiation. Due to the textured characteristics and thermo-transforming ability, synthesized components can be used as potential universal bearings of catalysts for reactions stimulated by electromagnetic radiation of (2.45 GHz) microwave frequency.
Highlights
While 50-60-ies of XX century, the main toxic air pollution, were made of industrial and domestic companies, the level of emissions of toxic components into the environment of internal combustion engines (ICE) of last decade has exceeded many industrial facilities as a fact of rapid growth in the number of cars and trucks
While improving of motor fuel quality and design of internal combustion engines achieved by countries of the “far” and “near” abroad has significantly improved environmental characteristics of used vehicle park, the massive use of catalytic converters of exhaust gases should be considered the most important protection measure ensured environmental compliance of vehicles [1]
We have performed a comprehensive study on the development of effective catalysts for deep oxidation of hydrocarbons and carbon monoxide in the exhaust gas carburettor, containing the active composition which is not deficient oxides of copper, chromium, cobalt and manganese on the surface volumetrically structured Al2O3/A1-frame carriers [2]
Summary
While 50-60-ies of XX century, the main toxic air pollution, were made of industrial and domestic companies, the level of emissions of toxic components into the environment of internal combustion engines (ICE) of last decade has exceeded many industrial facilities as a fact of rapid growth in the number of cars and trucks (currently in the world there are over 450 million vehicles units). Heat treatment of potential catalysts under traditional heat transfer due to the presence of a temperature gradient from the surface of the carrier granules to the center, occurs uneven distribution of active components, and as a consequence, the generated samples exhibit poorly reproducible catalytic activity [4]. In this regard, it should be noted that a distinct advantage of the method of the microwave heat treatment of materials has spread in recent years in the field of high technologies such as the preparation of heterogeneous catalysts and catalytic transformations of the further stimulated by microwave radiation [5] [6]. The task of selecting the component composition of the catalysts for the reaction indicated in a microwave field, thermal treatment was significantly facilitated by the development of the formulation of cooking in a conventional heating [7]
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