Scrap tire pyrolytic carbon black micro-oxidation and activation method

Abstract

The invention belongs to the technical field of waste resource utilization. A scrap tire pyrolytic carbon black micro-oxidation and activation method comprises a scrap tire pyrolyzing furnace, a micro-oxidation and activation furnace, an air storage tank, a catalytic combustion furnace, a condensing plant, a pyrolytic oil storage tank and a flue gas purifying device. Compared with traditional pyrolytic carbon black, pyrolytic carbon black prepared by the scrap tire pyrolytic carbon black micro-oxidation and activation method provided by the invention has the advantages that most volatile components, carbon sediments and coking substances piled up on the surface of the carbon black are removed, the surface property of the pyrolytic carbon black is improved, the porosity of the pyrolytic carbon black is greatly increased, the surface activity of the pyrolytic carbon black is greatly enhanced, excellent raw materials are provided for follow-up applications of the pyrolytic carbon black inthe fields such as rubber, coatings, active carbons and asphalt modifiers, the follow-up commercial cost is reduced, the range of the pyrolytic carbon black application field is enlarged, and the advancing of a scrap tire recycling industry chain is promoted; and meanwhile, a gas product generated in each unit can enter the catalytic combustion furnace to be burned so as to provide energy for thescrap tire pyrolyzing furnace and the micro-oxidation and activation furnace; and therefore, the energy consumption is reduced, and the cost is saved.

Description

technical field [0001] The invention belongs to the technical field of resource utilization of waste, and in particular relates to a method for micro-oxidizing and activating waste tire pyrolysis carbon black. Background technique [0002] With the popularization of automobiles, the tire industry has been fully developed, but waste tires are thermosetting polymer materials, which are difficult to degrade under natural conditions. The complete degradation of organic matter is achieved in an oxygen-free environment, avoiding the problem of secondary pollution during the disposal process. , and high value-added pyrolysis products are produced in the group, which truly conforms to the treatment principles of solid waste reduction, harmlessness, and resource utilization. [0003] Pyrolytic carbon black is an important product of waste tire pyrolysis, mainly composed of carbon black and inorganic fillers added during tire production, and coke deposits formed due to secondary reac...

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Problems solved by technology

The main component of pyrolytic carbon black is industrial carbon black, which has begun to have a pore structure, and new pores inside and on the surface of pyrolytic carbon are formed due to the precipitation of volatile substances during the pyrolysis process, but on the other hand, ash or coke substances Accumulation on the surface of carbon black leads to partial pore blockage, which affects the surface activity of carbon black, which is not conducive to the subsequent finishing process, and is also not conducive to the commercialization of the waste tire recycling industry chain

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