Low-consumption continuous clean activated carbon production device and method

Abstract

The invention belongs to the technical field of energy utilization and environment-friendly material manufacturing, and relates to a low-consumption continuous clean activated carbon production deviceand method. The low-consumption continuous clean activated carbon production device comprises a supply hopper, a double-sealed feeding device, a pyrolysis activation device, a discharging device anda detachable finished product bin, wherein blanking partition layers are arranged to divide the interior of the pyrolysis activation device into a drying region, a pyrolysis region, a surface activation region, a deep activation region and a solid product region; raw materials in the supply hopper are fed into the pyrolysis activation device by the double-sealed feeding device, and are subjected to drying and pyrolysis reaction first in a falling process of the raw materials to generate pyrolysis gas, tar and semi-coke; the tar is condensed in the device, is adsorbed on surfaces of the raw materials, and is collected after being completely cracked into small-molecule pyrolysis gas; the pyrolysis solid product semi-coke is fed into the surface activation region and the deep activation region; the activation gas is combined with the molten salt as an activator to activate the semi-coke and continuously enrich microporous and mesoporous structures of the semi-coke; and finally, the activated carbon with a relatively large specific surface area is generated and is collected after being discharged from the solid product region.

Description

technical field [0001] The invention belongs to the technical field of energy utilization and environmental protection material manufacturing, and in particular relates to a low-consumption continuous clean production activated carbon device and method. Background technique [0002] There are many types of organic matter and the yield is huge. Pyrolysis is considered to be one of the effective methods for the recycling of organic matter. Combustible gas, tar, semi-coke and other products can be obtained by pyrolysis of organic matter. Combustible gas and tar contain high calorific value, and coke can be activated to form activated carbon. Activated carbon is a carbonaceous material with a large specific surface area and well-developed pores, and has excellent adsorption capacity. Adsorption, separation, purification and energy storage of phase and gas phase substances. [0003] At present, the main problems in the preparation of activated carbon in China can be summarize...

AI Technical Summary

Problems solved by technology

[0004] (1) The raw material is first carbonized, and the carbonized material is heated up and activated again after cooling, ash removal and other processes, which results in a large amount of energy waste, and the time from raw material to finished product is too long;

[0005] (2) The tar produced during the pyrolysis process of raw materials is often engulfed in the combustible gas, which becomes the source of problems such as pipeline blockage and equipment corrosion;

This step not only causes the consumption of electric energy, but also affects the mass transfer effect of the activator, resulting in excessive consumption of the activator and high production costs.

Images