Technique for preparing activated carbon with powdered coal pyrolysis powdered coke

Abstract

The invention discloses a technique for preparing activated carbon with powdered coal pyrolysis powdered coke. The technique comprises the steps as follows: 1) shattering powdered coke; 2) mixing 90-95 percent of organic components and 5-10 percent of inorganic components and obtaining a compound adhesive; 3) uniformly mixing the 90-95 percent of organic components and 5-10 percent of inorganic components; 4) performing cold pressing or extruding of a mixture of the powdered coke and the compound adhesive to form particles; 5) solidifying the formed particles; 6) carbonizing the solidified and formed particles; 7) performing activation of the carbonized product to obtain a ball-shaped or columnar activated carbon product. The technique improves solidification strength by adopting the novel compound adhesive and effectively solves the breaking problem during carbonization and activation. The technique is simple, the operation is convenient, the comprehensive utilization of the powdered coke is achieved, the added value is increased, and a certain economic benefit is obtained. The activated carbon prepared by the technique can be applied in the fields of gas separation, sewage treatment, flue gas desulfuration and the like.

Description

technical field [0001] The invention relates to a process for utilizing pulverized coal by-product coke powder, in particular to a method for preparing activated carbon by pyrolyzing coke powder from pulverized coal. Background technique [0002] Coke powder is a by-product produced by coking, metallurgy, chemical industry, calcium carbide and other production enterprises. It is discarded because of its small particle size and does not meet the production process requirements. In recent years, the coal chemical industry has developed rapidly, and the coke powder produced by the new pulverized coal pyrolysis technology is even greater. At present, most of the coke-consuming enterprises in our country have not found an effective solution to the formation of coke powder, so the coke powder can only be treated as a low-grade fuel at a low price. Not only caused a lot of energy waste, increased production costs, and decreased economic benefits, but more importantly, coke powder ...

AI Technical Summary

Problems solved by technology

Not only caused a lot of energy waste, increased production costs, and decreased economic benefits, but more importantly, coke powder piled up in the open air, exposed to wind and sun, and flew around, causing serious dust pollution to the environment, directly affecting the production plant and surrounding residents. Working and living environment, endangering human health

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