Carbonization-activation bilateral reaction furnace for producing active carbon by biomass

Abstract

The invention relates to the technical field of environmental protection equipment, in particular to a reaction furnace for producing activated carbon. A carbonization-activation two-way reaction furnace for producing activated carbon from biomass. The invention includes a reaction chamber, which also includes a gas delivery pipe I, a gas delivery pipe II, a delivery pipe group, a support frame and a screen. The reaction chamber is provided with a support frame above and below , There is a screen on the upper surface of the support frame, and a screen is provided on the screen. One end of the air delivery pipe I is arranged on the upper side of the reaction chamber, one end of the air delivery pipe II is arranged on the lower side of the reaction chamber, and clean rooms are respectively arranged on both sides of the reaction chamber. The two-way reaction to the biomass is realized by using the gas pipes installed at the top and bottom of the reaction furnace. After the first reaction, the reaction gas reacts again in the reverse direction to improve the reaction efficiency; the purification chambers installed at both ends of the reaction chamber realize the common reaction and purification in the furnace. After completion, the reaction gas can be used directly after being output from the reaction furnace without further processing, which simplifies the subsequent process steps of reaction gas recovery and use.

Description

technical field [0001] The invention relates to the technical field of environmental protection equipment, in particular to a reaction furnace for producing activated carbon. The invention also provides a method for producing activated carbon from biomass, which relates to the technical fields of pyrolysis of organic matter and activated carbon, especially the carbonization and activation of straw crops. Background technique [0002] my country is a large agricultural country with a wide range of biomass sources and large reserves, with 7×10 8 tCrop Straw, 2×10 8 tForest waste and wood processing residues are mostly directly stacked or burned, which not only has low thermal efficiency (less than 10%), but also produces a large amount of smoke and dust, which seriously pollutes the environment and affects the physical and mental health of residents. Therefore, how to properly dispose and utilize agricultural biomass is of great significance to environmental protection. ...

AI Technical Summary

Problems solved by technology

[0005] In the prior art, the reaction furnace for the production of activated carbon adopts one-way flow of activated gas or reaction gas, which reflects that the reaction is insufficient, and the gas after one-way flow directly enters the lower stage

At the same time, in the existing process of producing activated carbon, organic matter such as tar produced by carbonization and activation enters the reaction gas for recovery along with the reaction gas, which affects the reuse of the reaction gas

[0006] At the same time, the process of pyrolysis of organic matter needs to consume a lot of energy. At present, most pyrolysis processes mainly consume external energy to provide pyrolysis energy, and the energy consumption in the process is relatively high.

At the same time, external gases such as water vapor, carbon dioxide, and oxygen are required to catalyze the reaction, resulting in unnecessary waste

The combustible gas after activated pyrolysis is accompanied by impurities such as tar and smoke, which reduces the quality of the combustible gas

Images