Sulfur-dioxide adsorbing agent

Abstract

The invention discloses a sulfur-dioxide adsorbing agent. The sulfur-dioxide adsorbing agent comprises a carrier consisting of aluminium oxide and silicon oxide, wherein the surface of the carrier is coated with a metal compound which is KO; according to the total weight of a catalyst, the carrier accounts for 90%-94%, and the metal compound accounts for 6%-10%. The carrier has enough specific surface area and enough volume for adsorbing sulfur dioxide, is high in heat stability and stable in heat load in the process of fuel oxidizing reaction, therefore, due to the properties, the long-term chemical and mechanical stability is guaranteed, and the sulfur dioxide in the air can be effectively cleared when sulfur-containing fuel is burnt.

Description

technical field [0001] The present invention relates to energy technology, more specifically, it relates to a kind of sulfur dioxide adsorbent. Background technique [0002] With the progress of society, the demand for energy is increasing, and the large-scale use of energy will inevitably have a greater impact on the environment. Due to the constraints of domestic resource support capabilities and environmental capacity, as well as global energy security and climate response, resource and environmental constraints are increasingly strengthened. Among them, coal It is one of the very important energy sources, but if the coal is not fully burned, it is directly discharged, which not only causes a waste of resources, but also produces a large amount of harmful gases, causing air pollution and threatening the living environment of people. [0003] Among them, the harmful gas of sulfur dioxide is one of the main causes of acid rain. Acid rain will lead to acidification of soil a...

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Problems solved by technology

[0002] With the progress of society, the demand for energy is increasing, and the large-scale use of energy will inevitably have a greater impact on the environment. Due to the constraints of domestic resource protection capabilities and environmental capacity, as well as global energy security and climate response, resource and environmental constraints are increasingly strengthened. Among them, coal It is one of the very important energy sources, but coal is discharged directly without full combustion, which not only causes a waste of resources, but also produces a large amount of harmful gases, causing air pollution and threatening people's living environment

[0003] Among them, the harmful gas of sulfur dioxide is one of the main causes of acid rain. Acid rain will lead to acidification of soil and water system, endanger forests and crops, and cause disastrous consequences to human ecological environment. Existing desulfurization methods can be roughly divided into absorption method, Adsorption method and catalytic method, the key to the adsorption valve to remove sulfur dioxide in the exhaust gas is the adsorbent, but the adsorbent currently used is mainly activated carbon, and the types are limited

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