Absorbent for purifying sulfur-containing foul waste gas and preparation method thereof

Abstract

The invention relates to an absorbent for purifying sulfur-containing effluvium waste gas and it's preparing method. The invention uses active carbon as carrier, and has 0.1-30% additive components which comprise at least one of Li, K, Na, Cu, Ca, Ba and Mg, while they are distributed on the surfaces of pore passages of said active carbon carrier. The inventive absorbent loads additive components via high-temperature dipping method. The invention can overcome the defections of present absorbent with lower sulfur content and worse regeneration. The inventive method can significantly improve the utilization of effective pore passage of carrier to improve the property of absorbent. And said invention can apply the treatment of sulfur-containing effluvium waste gas.

Description

technical field

[0001] The invention relates to an adsorbent and a preparation method thereof, in particular to a loaded activated carbon adsorbent for purifying malodorous waste gas and a preparation method thereof. Background technique

[0002] In various industrial production processes, some toxic and harmful substances are often produced, especially odorous substances, such as hydrogen sulfide, low molecular mercaptans, sulfides, dimethyl disulfide and other sulfides. These sulfide thresholds are very low (H 2 S is 4.1×10 -4 ppmv, methyl mercaptan is 7.0×10 -5 ppmv) and is highly toxic, not only causing chronic harm to the health of enterprise employees, but also polluting the living areas of residents around the enterprise.

[0003] At present, the treatment methods for this kind of waste gas mainly include adsorption method, combustion method, washing method, catalytic oxidation, etc. Among them, the adsorption method is widely used because of its simple process, co...