Method for producing superconducting carbon black with high specific surface area

Abstract

The invention relates to a method for producing superconducting carbon black with high specific surface area, and aims to make a production process simple and product performance stable. The method comprises the following steps of: completely combusting gas in a combustion section of a reaction furnace, mixing the gas, air and raw oil, adding into a throat pipe section of the reaction furnace, and making the temperature of a reaction section of the reaction furnace reach 1,300 to 1,600 DEG C under the action of a K2CO3 catalyst; performing thermal cracking and thermal polycondensation on the gas and the raw oil rapidly to generate the superconducting carbon black; continuously reacting the superconducting carbon black with a CO2 catalyst in a rapid cooling section of the reaction furnace,and performing catalytic activation on the superconducting carbon black to form a developed pore structure and improve the specific surface area of the superconducting carbon black; exchanging the flue gas of the superconducting carbon black with cold air by using an air preheater in a retention section of the reaction furnace to reduce the temperature to be lower than 600 DEG C; and when reaction for preparing a product from raw materials is finished, cooling the superconducting carbon black to 320-350 DEG C by using a tubular rapid cooling boiler, slowly cooling, adding into a bag filter, and collecting, wherein recycled heat is used for generating electricity.

Description

technical field [0001] The invention specifically relates to a production method of superconducting carbon black with high specific surface area. Background technique [0002] High specific surface area superconductive carbon black can reduce the usage of general carbon black and conductive carbon black, and significantly enhance the performance of materials. In terms of superconducting carbon black used in new energy, Chinese invention patent 200710144767.1 adopts vibration method to add XC-72 or BP2000 superconducting carbon black to PTFE, make carbon paper under the action of catalyst, etc., and then make proton exchange membrane fuel cell electrodes. Its XC-72 or BP2000 superconducting carbon black is a product of Cabot Corporation of the United States. In Chinese invention patent 201010240465.6, nano-scale superconductive carbon black is used as the negative electrode active material additive of lead-acid batteries, and the service life of ordinary lead-acid batteries...

AI Technical Summary

Problems solved by technology

At present, the production technology of superconducting carbon black in China is not yet mature. Foreign superconducting carbon black is produced by a two-step method. First, it is made into basic carbon black, and then it is made into superconducting carbon black by high temperature heat treatment. The process is long and the investment in equipment is large.