| 摘要 |
The invention relates to a process and an installation for removing volatile organic compounds from gas mixtures which constitute the industrial atmospheric emissions. According to the invention, the process relates to the removal of volatile organic compounds from a gaseous mixture wherein said compounds are present in a percentage of 5 ... 10 %, by catalytic oxidation made with an oxygen uptake from the atmospheric air, at a temperature of 450 ... 500A C, the catalyst consisting of zeolitic volcanic tuff containing 70 % clinoptylolite, having a granulation of 3 to 10 mm and it being arranged in two catalytic layers. According to the invention, the installation for carrying out the process comprises a fan blower (4) by means of which the gas mixture containing volatile organic compounds is introduced, an air control valve (5) for ensuring the oxygen amount to ensure the catalytic burning, a pre-heater heat recovery unit (1), a heat exchanger (2), a catalytic oxidation column (3) provided with a metal catalytic carrier of staggered shape and comprises two catalytic layers arranged at a distance of 5 ... 10 cm and having a thickness of 20 ... 50 cm. |
