Study and Preparation of Copper Nano Catalyst and Evaluation of its Performance in the Oxidation Reaction of Carbon Monoxide to Carbon Dioxide

The main purpose of this study is the oxidation of carbon monoxide to carbon dioxide in the presence of copper catalyst.  This odorless gas needs to be removed somehow because it is toxic. Oxidation methods include carbon dioxide oxidation and hydrogenation.  At present, the second method is interesting for researchers as a key technology to produce clean fuels and chemicals.  Copper catalyst was selected because of its cheapness and suitable activity in the carbon monoxide oxidation reaction.  In this study, the effect of different bases on product selectivity and feed conversion rate was investigated.  In this dissertation, first copper nanoxides were prepared by co-precipitation and microemulsion method and then the final catalyst was obtained by wet inoculation (copper on different bases).  Catalysts are evaluated in terms of physical and chemical properties, and in certain operating conditions of temperature (100-400 °C), pressure (1 atm), feed volume ratio (O₂ / CO / H₂ / N₂ = 2/2/5/91 and GHSV= 1.5-6 nl.h-1.gCat-1 valley fixed bed reactor system was tested.  The results of the reactor test show that TiO₂-based copper nanocatalyst has a higher rate of carbon monoxide conversion and selectivity.  Increasing the lanthanum enhancer to the catalyst structure increases the conversion rate of carbon monoxide and the selectivity of carbon dioxide.