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Active coke preparation method and preparation device

A technology for preparing device and active coke, applied in the field of active coke, can solve the problems of low activity of active coke, limited application of active coke, small specific pore volume and specific surface area of ​​active coke, etc.

Active Publication Date: 2017-05-31
ENN SCI & TECH DEV
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  • Claims
  • Application Information

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Problems solved by technology

[0003] In the existing active coke preparation method, coal is usually used as raw material, and the coal is crushed, carbonized and activated to prepare active coke. The specific pore volume and specific surface area of ​​the obtained active coke are small, so that the activity of Low, poor adsorption performance, limiting the application of activated coke

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  • Active coke preparation method and preparation device

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Embodiment Construction

[0035] A method and device for preparing active coke provided in the embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0036] On the one hand, the embodiment of the present invention provides a method for preparing active coke, see figure 1 ,include:

[0037] Step 1) Gasify or pyrolyze the pulverized coal to obtain semi-coke with preset structural parameters; wherein, the preset structural parameter means that the carbon content of the semi-coke is greater than or equal to 80%, which is higher than The pore volume is greater than or equal to 0.2cm3 / g, and the particle size is less than or equal to 250 microns;

[0038] Step 2) Activating the obtained semi-coke with an activator to obtain active coke.

[0039] Among them, the gasification reaction refers to the process in which pulverized coal reacts with a gasification agent to generate methane, tar and semi-coke under the conditions of medium temperature (8...

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Abstract

The invention relates to the technical field of active coke, in particular to an active coke preparation method and preparation device. The active coke with large specific pore volume, high specific surface area and good adsorption performance can be obtained. The active coke preparation method includes the steps: 1) performing gasification reaction or pyrolysis reaction on pulverized coal to obtain semi-coke with preset structural parameters; 2) performing activating reaction of the semi-coke and activators to obtain the active coke. The preset structural parameters indicate that the carbon content of the semi-coke is larger than or equal to 80%, the specific pore volume is larger than or equal to 0.2cm<3> / g, and granularity is smaller than or equal to 250 micrometers. The active coke preparation method is used for preparing the active coke.

Description

technical field [0001] The invention relates to the technical field of active coke, in particular to a preparation method and a preparation device of active coke. Background technique [0002] Activated coke is a porous carbonaceous substance with many mesopores and macropores. It is often used as an adsorbent in technical fields such as flue gas purification and water treatment. [0003] In the existing active coke preparation method, coal is usually used as raw material, and the coal is crushed, carbonized and activated to prepare active coke. The specific pore volume and specific surface area of ​​the obtained active coke are small, so that the activity of Low, poor adsorption performance, limiting the application of activated coke. Since the specific pore volume, specific surface area and adsorption performance of activated coke are related to the reaction conditions in the whole reaction process, it has become a research hotspot to seek a preparation process of activat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B32/33C01B32/336
Inventor 郑征周三董婵李克忠景旭亮王蕾
Owner ENN SCI & TECH DEV
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