Regeneration method of active carbon and device for realizing method

Abstract

The invention provides a regeneration method of active carbon. The regeneration method comprises the following steps that collection and arrangement are carried out on used active carbon; water is introduced into a water-molecule heat-energy generation device to obtain high-temperature gaseous water-molecule heat energy with the high enthalpy value; the outputted gaseous water-molecule heat energyis directly introduced into the collected and arranged active carbon, the high-temperature gaseous water-molecule heat energy can react with organic-matter impurities in the active carbon, and then the organic-matter impurities can be decomposed by heat to form steam, carbon dioxide, carbon black and other foreign gases, so that the active carbon is regenerated. The regeneration method provided by the invention has the advantages that the impurities in the active carbon can be effectively cleared by the formed high-temperature gaseous water-molecule heat energy under normal pressure so as toachieve the purpose of active-carbon regeneration; the principle is reliable, the process is simple and the carbon loss is less. The invention also provides a device for realizing the regeneration method of the active carbon. The device has the advantages of simple whole structure, convenience in use, more miniaturization, lower cost and wide application range.

Description

technical field [0001] The invention relates to a regeneration method and device for activated carbon. Background technique [0002] With the development of activated carbon manufacturing industry and the expansion of its application fields, it is necessary to regenerate activated carbon no matter from the perspective of economic benefits or environmental protection, which has become an important part of activated carbon production and use technology. Whether activated carbon is discarded after being used once or recycled after regeneration is not only an important symbol reflecting the technical level of the activated carbon industry, but also a choice problem that enterprises using activated carbon need to face. In recent years, domestic research, development, and implementation of activated carbon regeneration have achieved certain results. Among them, activated carbon regeneration technologies include thermal regeneration, extraction regeneration, oxidation regeneration,...

AI Technical Summary

Problems solved by technology

Generally, the media used in high-temperature thermal regeneration are water vapor, flue gas, carbon dioxide and other gases. High-temperature thermal regeneration has high regeneration efficiency, short regeneration time, and basically no selectivity for adsorbates; When the temperature is above 850°C, charcoal will undergo gasification reaction with oxidizing gas, and gasify into CO 2 , CO and other gases, with the increase of time, the loss of charcoal is relatively large, generally 5-10%, the mechanical strength of regenerated charcoal decreases, and the chemical structure of the charcoal surface changes; in addition, the equipment required for thermal regeneration is relatively complicated, and the operating cost is relatively high. High, not easy to miniaturize

Images