Highly active hopcalite catalyst

hopcalite agent is a catalyst made of manganese dioxide and active copper oxide in a certain proportion, which was jointly invented by Johns Hopkins University and the University of California in 1919.

Although hopcalite agent is non-precious metal, it has incomparable activity with other non-precious metal catalysts. According to the composition of the hopcalite agent can be divided into two catalysts and four catalysts, the two catalyst is composed of 40% copper oxide and 60% manganese dioxide, four catalysts are composed of 30% copper oxide, 50% manganese monoxide, 15% diamond trioxide and 5% silver oxide. Under normal temperature and atmospheric pressure conditions, the performance of the two is not very different. It has a good catalytic effect on CO in a dry environment (normal temperature and pressure), but its disadvantage is that it is more sensitive to water vapor, and when the humidity exceeds 45%, the catalyst will soon be toxic and ineffective, so it is more suitable for use in a dry environment. For low concentration CO gas, the effect of this catalyst is not as significant as that of precious metal catalyst. The preparation methods of hopcalite agent include co-precipitation method, distributed precipitation method, impregnation method, etc.

The size of the hopcalite agent affects the pressure drop of the gas stream and the rate of the catalytic reaction, which ultimately determines the height and volume of the catalyst bed. Hopcalite, also known as carbon monoxide catalyst, is a transition metal oxide catalyst with high activity. It can effectively catalyze the oxidation of harmful carbon monoxide to carbon dioxide.