Method for producing desulfurized denitrated carbon

Abstract

The invention discloses a method for producing desulfurized denitrated carbon. An external heating type carbonization and activation integrated furnace is adopted; in a carbonization section, materials are gradually heated in a certain low-temperature range and under the condition of air isolation, the materials are slowly heated so that colloid in the materials is pyrolyzed in order, and effective pores of a desulfurization process are achieved to the maximum extent by controlling the pyrolysis speed and controlling the size of molecules overflowing during pyrolysis; in an activation section,the materials continue to be heated to 650 DEG C or above to start polycondensation, part of components of the materials start coking to form high-strength carbon, at the moment, the materials form developed pores along with a water gas reaction in an activating agent atmosphere, and the pore structure and the abrasion resistance of the active coke are kept or improved while the compressive strength and the ignition point are improved. The method has the advantages of low energy consumption, less emission, automatic production, low working intensity, high equipment safety and reliability, andlow maintenance cost and personnel cost; the raw material consumption is reduced by 20-40%, the wear-resistant and compression-resistant strength is high, and the regeneration cycle frequency is high.

Description

Technical field [0001] The invention relates to a method for producing desulfurization and denitration carbon, and belongs to the technical field of activated carbon production. Background technique [0002] At present, most of the factories producing desulfurization and denitrification carbon use the process of first carbonization and then activation. The carbonization is mainly the internal heating carbonization process, a small part of the manufacturers use the external heating carbonization process; the activation is mainly the Slip furnace process. [0003] The carbonized material using internal heating carbonization process does not form effective pores for desulfurization, mainly because the internal heating carbonization process material has a fast heating rate, pyrolysis gas overflows disorderly, and effective pores cannot be formed, and because of the short softening time, colloid penetration When the time is short, the material cannot develop high mechanical strength; th...

AI Technical Summary

Problems solved by technology

[0005] The main reason is that the activation at high temperature and for a long time in the activation stage will greatly damage the polarity and activity of the material. Due to the destruction of the polarity and activity of the material, the desulfurization effect will deteriorate during use, and the recycling ability will deteriorate, resulting in dryness. Therefore, adopting a more reasonable process to produce desulfurization and denitrification carbon has a huge effect on the popularization of dry desulfurization process