Biomass gasification-activation combination and preparation method of active porous carbon material
A biomass carbon and porous carbon technology, applied in chemical instruments and methods, inorganic chemistry, carbon compounds, etc., can solve the problem of high tar content, and achieve the effect of prolonging the cracking time, long contact time and good activation effect.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0022] Use wood chips as the raw material, convey the raw material into the feed port (2) by belt conveyor, turn on the leveler (4), level the material surface, start the induction fan (20) at the head of the activation furnace, start to ignite, and wait for the gasification layer When the temperature reaches 600°C, start the movable furnace screen (8) and rotate the activation furnace (11) at the same time, adjust the air volume of the induced draft fan through the frequency converter, and control the gasifier gas outlet temperature at 450-700°C. At this time, the tar and black water The waste liquid exists in the form of superheated steam, and then the steam of biomass charcoal, tar and black water waste liquid enters the activation furnace through the inlet (10). 800°C, the combustible gas produced passes through the waste heat boiler (19), and part of the water vapor obtained by exchanging heat between the high-temperature gas and the waste heat boiler is used to supply the...
Embodiment 2
[0024] Using sawdust and wood shavings as raw materials, the raw materials are sent into the feed port (2) by wind power, the leveler (4) is turned on, the material surface is leveled, the induced draft fan (20) of the activation furnace head is started, the ignition is started, and the heat is controlled. The delamination temperature is about 550°C, the gasification layer temperature reaches about 750°C, the activation furnace temperature is about 900°C, and the rest of the steps and methods are the same as in the first embodiment. The composition of the obtained combustible gas is: CO 2 9.8%, CO2 3.2%, H 2 18.9%, CH 4 5.2%, the calorific value of gas is 7.4MJ / Nm 3 ;Tar content is 5mg / Nm 3 , the methylene blue adsorption value of activated carbon is 11-15ml / 0.1g, the iodine adsorption value is 800-1000mg / g, and the BET specific surface area is 1086m 2 / g.
Embodiment 3
[0026] Use fruit tree branches as raw materials, convey the raw materials into the feed port (2) by belt conveyor, open the leveler (4), level the material surface, start the induction fan (20) at the activation furnace head, start ignition, and control the pyrolysis layer The temperature is about 600°C, the temperature of the gasification layer reaches about 850°C, the temperature of the activation furnace is about 900°C, and the rest of the steps and methods are the same as in the first embodiment. The composition of the obtained combustible gas is: CO 2 10.9%, CO26.7%, H 2 20.3%, CH 4 3.9%, the calorific value of gas is 7.6MJ / Nm 3 ;Tar content is 9mg / Nm 3 , the methylene blue adsorption value of activated carbon is 10-13ml / 0.1g, the iodine adsorption value is 800-1000mg / g, and the BET specific surface area is 987m 2 / g.
PUM
| Property | Measurement | Unit |
|---|---|---|
| iodine adsorption value | aaaaa | aaaaa |
| iodine adsorption value | aaaaa | aaaaa |
| specific surface area | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More