III International Conference

PP-II-95NEW CATALYST OF LOW-TEMPERATURE CARBON MONOXIDE OXIDATIONFOR PURIFICATION OF AIROshanina I.V., Grunina S.M., Kuz`micheva G.M., Kotareva I.A., Titov D.N., Bruk L.G.,Temkin O.N., Kaliya O.L. 1M.V. Lomonosov State Academy of Fine Chemical Technology, Moscow, Russia1 State Scientific Center “Organic Intermediates and Dyes Institute”E-mail: lbruk@rol.ruThe new catalyst for low temperature carbon monoxide oxidation was developed. It isshown on the base of X-ray diffraction data that γ-Al 2 O 3 is the best support for the catalyst.The kinetics of low-temperature carbon monoxide oxidation was studied.Carbon monoxide is one of the most common pollutants, which is emitted into theatmosphere as a product of natural phenomena (fires and volcanic eruptions), and as result ofindustrial and transport pollutions.It is necessary to use respirators and air purification systems to protect peoples inextraordinary situations (fires, traffic jams). The low-temperature catalyst for oxidationcarbon monoxide is functional part of these respirators and air purification systems [1-2].This report deals with development of supported metal complex catalyst PdCl 2 -CuCl 2 -additives/ carrier, used for effective low-temperature carbon monoxide oxidation in the air.A number of carriers were tested to prepare low-temperature carbon monoxide oxidationcatalyst (activated coals, silica, alumina). The catalysts were prepared by the coldimpregnation procedure. It was shown that alumina is the best kind of carrier for preparing ofthis catalyst.The influence of alumina structure on catalytic activity of catalysts in low-temperaturecarbon monoxide oxidation was studied. Seven samples of industrially produced aluminawere tested as carriers for above mentioned catalyst. Structure of alumina samples wasstudied by X-Ray diffraction method. It was shown that the highest catalytic activity wasconnected with γ-form of alumina structure.The kinetics of low-temperature carbon monoxide oxidation over PdCl 2 -CuCl 2 -additives/carrier catalyst was studied. The effect of partial pressures of oxygen, of carbon monoxideand of water on the reaction rate was studied by one-factor kinetic experiments. It was shownthat reaction orders in oxygen (1), in water (0.8) and in carbon monoxide partial pressures335