Pyrolysis carbon black carbonized by high-temperature pyrolysis gas and preparation method thereof

Abstract

The invention discloses pyrolysis carbon black carbonized by high-temperature pyrolysis gas and a preparation method thereof. According to the invention, a microwave generator is used as a heating source of a pyrolysis carbon black carbonization furnace, carbonization of the carbon black is realized through high temperature, and the deep processing performance of the carbon black is improved; high-temperature gas serves as a carrier to realize mixing of a high-temperature heat carrier and a carbon black material; uniform and rapid heating of the carbon black material is achieved through high thermal conductivity of the high-temperature heat carrier, the overall carbonization time of the carbon black material is shortened, and carbonization efficiency is improved; and the waste heat of thepyrolysis gas is used for providing heat for the carbonization furnace, so the heat of high-temperature pyrolysis gas is fully utilized, and energy-saving effect is obvious.

Description

technical field [0001] The invention relates to the technical field of solid organic waste treatment and resource utilization, in particular to a pyrolysis carbon black which is carbonized by using high-temperature pyrolysis gas and a preparation method thereof. Background technique [0002] The thermal cracking technology of waste tires is to crack the rubber polymer of waste tires into pyrolysis gas, pyrolysis oil and pyrolysis carbon black at a specific temperature under the condition of lack of oxygen or inert gas. The energy source of pyrolysis, the produced oil and carbon black are the main products of waste tire pyrolysis, and the recycled pyrolysis carbon black is the key product of tire pyrolysis. [0003] There are many thermal cracking methods for waste tires, mainly divided into continuous cracking treatment technology and batch cracking treatment technology. Whether it is continuous cracking treatment technology or batch cracking treatment technology, the crack...

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Problems solved by technology

Whether it is continuous cracking treatment technology or batch cracking treatment technology, the cracking temperature is not enough to completely decompose the hydrocarbon components in carbon black, which leads to the defect of poor deep processing performance of cracked carbon black. The pyrolysis temperature will affect the production of pyrolysis gas and pyrolysis oil; in addition, the current pyrolysis of waste tires mainly stays in the oil refining stage, and the pyrolysis temperature is about 400 ° C, which cannot achieve the purpose of carbon black carbonization

[0004] On the other hand, during the pyrolysis process of waste tires, the high calorific value pyrolysis gas (pyrolysis oil is also in gaseous state under high temperature conditions) produced under high temperature environment contains a lot of heat. If the heat cannot be effectively used, it will cause Waste of resources, while increasing the cost of pyrolysis gas tail gas treatment