CATALYSIS IN TREATING OF POWER REACTOR WASTE GASES

Abstract

This paper is devoted to operating experience of heat units, created on the base of catalytic fuel combustion in fluidized bed technology, which allows to mitigate requirements for thermochemical stability of constructional materials and reduce their erosion; to diminish heat losses through apparatus’s walls; to improve start installation and combustion process control; to improve explosion safety of the installation; to reach high values of power loading of the fuel oxidation and heat removal zones; to decrease significantly the design size, weight and metal consumption; to exclude secondary endothermic reactions forming toxic products. Basing on the technology of catalytic fuel combustion, a variety of apparatuses has been designed for the heating and evaporation of liquids, drying and thermal treatment of materials, detoxification of industrial emissions (gaseous, liquid and solid), and so on. Catalytic heat units, such as hot-water boilers for heat and hot water supply of communal and industrial objects, serve as examples of enough wide commercial using of the technology. In the present work results of optimization of construction and exploitation parameters of serial catalytic heat units working with liquid and solid fuels are discussed. The experience of catalytic boilers long operation at the heat supply of communal and industrial objects are generalized. Constructive and exploitation disadvantages of catalytic boilers are established and recommendations upon their removal are given.