A kind of carbon monoxide removal catalyst and preparation method thereof

Abstract

The invention discloses a carbon monoxide removal catalyst and a preparation method thereof. The catalyst comprises a carrier and an active component loaded on the carrier, the carrier is a compound of titanium dioxide and activated alumina, and the active component includes manganese oxide and copper oxide. The carrier of the present application uses titanium dioxide as the main component, so that the catalyst has excellent sulfur resistance; at the same time, activated alumina is used to modify the titanium dioxide, so that the specific surface area of ​​the carrier reaches 150-180 2 / g, the pore volume reaches 0.3‑0.38m 3 / g, thus effectively enhancing the ability of the titanium dioxide-based carrier to load active ingredients, so that the catalyst contains more catalytic active centers; after the composite of activated alumina and titanium dioxide, the surface of titanium dioxide will be charged to make titanium dioxide and active Each molecule in the alumina composite remains uniformly dispersed and the dispersion system has excellent stability, and finally a carrier with uniformly dispersed titanium dioxide and uniform pore distribution is obtained.

Description

technical field [0001] The invention relates to a catalyst, in particular to a carbon monoxide removal catalyst and a preparation method thereof. Background technique [0002] From a global perspective, the mainstream of new energy is biomass energy, especially in European and American countries, where the proportion of biomass energy in new energy exceeds 60%, far exceeding wind energy and solar energy. my country's currently planned biomass development goal is: by 2020, the annual utilization of biomass briquettes will be 30 million tons. National policies, development trends, and current status (there are more than 300 biomass boiler plants in the country) all encourage us to vigorously promote the application of biomass briquettes in commercial facilities and residential heating. [0003] However, there is still a phenomenon of CO exceeding the standard in the combustion of biomass briquettes. When the CO concentration is low, it is 500ppm, and when it is high, it exce...

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Problems solved by technology

[0008] However, the specific surface area of ​​diatomaceous earth as a carrier in this catalyst is about 40-65m 2 / g, the pore volume is about 0.45-0.98cm 3 / g, although the pore volume is relatively large, the specific surface area is too small to make it difficult to use diatomaceous earth as a carrier to load enough active components, resulting in insufficient number of catalytic active centers of the catalyst and low catalytic efficiency.

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