Active carbon desulfurizer and preparation method thereof

Abstract

The invention relates to an active carbon desulfurizer prepared by a kneading method and a preparation method thereof. The preparation method comprises the following steps: evenly mixing copper oxideor basic cupric carbonate and pulverized coal or charcoal powder with a certain quantity of water, then adding tar and rolling evenly, and then extruding bands to mold, drying and activating to prepare the active carbon desulfurizer for loading the copper oxide. Holes of the active carbon desulfurizer prepared by the kneading method are more than that of the active carbon desulfurizer prepared bya dipping method; the specific surface area of the active carbon desulfurizer is larger than 1,000<2> / g; the active carbon desulfurizer loading CuO and prepared by a kneading method is not only suitable for desulfuration in petrochemical industry, but also suitable for desulfuration of water gas; and when used for desulfuration of water gas, the active carbon desulfurizer not only has high activity, but also achieves over 30 percent of working sulfur capacity and has the advantages of regeneration, strong water resisting property, no argillization, low production cost and simple process.

Description

Technical field: [0001] The invention relates to a catalyst in petrochemical technology, in particular to a mixing method for preparing activated carbon desulfurizer and a method thereof Background technique: [0002] Activated carbon desulfurizer is one of the first dry desulfurizers used, and has been used for more than 70 years. Earlier activated carbon desulfurization technology equipment was huge, the regeneration and sulfur recovery process was complicated, and the operation was troublesome. It was gradually replaced by wet methods in the 1950s. In recent years, due to the improvement and simplification of regeneration methods, activated carbon desulfurizers for fine desulfurization and normal temperature fine desulfurization technology have been developed. Many medium and small synthetic ammonia plants, urea plants, and co-alcohol production plants use activated carbon desulfurizers for dry desulfurization. Hydrogen sulfide and some organic sulfur in the feed gas. This ...

AI Technical Summary

Problems solved by technology

[0006] The above-mentioned prior art all adopts the impregnation method to impregnate the metal salt on the activated carbon. The disadvantage of this method is that the micropores of the activated carbon are reduced, thereby reducing the specific surface area and pore volume of the activated carbon desulfurizer, and reducing the desulfurization speed and sulfur content. Allow