De-carbon monoxide catalyst and preparation method thereof

Abstract

The invention discloses a de-carbon monoxide catalyst and a preparation method thereof. The catalyst comprises a carrier and an active component loaded on the carrier, wherein the carrier is a composite of titanium dioxide and active aluminium oxide and the active component comprises manganese oxide and copper oxide. The catalyst has the beneficial effects that the carrier adopts the titanium dioxide as a main component, so that the catalyst has excellent sulfur resistance; in the meantime, the titanium dioxide is modified by adopting the active aluminium oxide to ensure that the specific surface area of the carrier is up to 150-180m<2> / g and the pore volume is up to 0.3-0.38m<3> / g, so that the ability of the carrier adopting the titanium dioxide as the main component to load the active component is effectively enhanced and more catalytically active centers are contained in the catalyst; and after the active aluminium oxide and the titanium dioxide are composited, molecules in the composite of the titanium dioxide and the active aluminium oxide can be kept to be uniformly dispersed due to electric charge carried on the surface of the titanium dioxide and the stability of the dispersion system is excellent and finally the carrier in which the titanium dioxide is uniformly dispersed and the pore distribution is uniform 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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