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Druss, preparation method and preparation equipment thereof

A carbon black and acetylene technology, applied in fibrous fillers and other directions, can solve problems such as high pollution and high emissions, and achieve the effects of reducing production costs, reducing energy consumption, and reducing particle size.

Active Publication Date: 2017-03-29
CHNA ENERGY INVESTMENT CORP LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the prior art production of carbon black must purify and purify acetylene gas, acetylene gas production and acetylene decomposition must be carried out independently, and there is a defect of high pollution and high emissions, to provide a carbon black and its Preparation method and preparation device

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  • Druss, preparation method and preparation equipment thereof
  • Druss, preparation method and preparation equipment thereof
  • Druss, preparation method and preparation equipment thereof

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preparation example Construction

[0030] The invention provides a method for preparing carbon black. The method comprises: (A) contacting a carbonaceous material with a high-temperature plasma at 1400-1800° C. for a cracking reaction to obtain a cracked product rich in acetylene; (B) combining the steps (A) The cleavage product obtained is subjected to acetylene decomposition reaction to obtain carbon black.

[0031] Wherein, the working gas of the high-temperature plasma can be a mixed gas of hydrogen and argon, and the power of the high-temperature plasma is 10kW-200kW for a carbonaceous material of 1 kg / min.

[0032] The invention utilizes high-temperature plasma to crack carbonaceous materials. Using a mixture of hydrogen and argon as the working gas can better crack the carbonaceous material. Preferably, the volume ratio of hydrogen and argon in the working gas is (1-4):1; The flow rate is 50-100L / min.

[0033] In the present invention, the working gas is delivered to the plasma generator to obtain high...

Embodiment 1

[0080] This example is used to illustrate the preparation method of the carbon black provided by the present invention.

[0081] according to figure 1 The device implementation shown,

[0082] (A) Cracking to produce acetylene: the working gas of hydrogen and argon with a volume ratio of 1:1 is delivered to the plasma generator 1, and the flow rate of the working gas is 15L / min; the working current of the plasma generator 1 is set to 60A, working voltage is 100V (the power of high temperature plasma is 6000W), obtain high temperature plasma and send in the cracking reaction section 2 by plasma inlet 20; Nitrogen is transported from the raw material inlet 21 to the cracking reaction section 2, the feed rate of coal tar is 30ml / min, and the flow rate of nitrogen is 2L / min.

[0083] The cracking reaction of coal tar occurs at 1800°C, argon gas is fed into the cracking reaction section 2 from the quenching agent inlet 23, and the temperature of the cracking product is controlled...

Embodiment 2

[0088] This example is used to illustrate the preparation method of the carbon black provided by the present invention.

[0089] according to figure 2 The device implementation shown,

[0090] (A) Cracking to produce acetylene: the working gas of hydrogen and argon with a volume ratio of 4:1 is delivered to the plasma generator 1, and the flow rate of the working gas is 20L / min; the working current of the plasma generator 1 is set to 80A, the working voltage is 125V (the power of the high temperature plasma is 10000W), and the high temperature plasma is obtained and sent into the cracking reaction section 2 through the plasma inlet 20; at the same time, the coal powder (with a particle size of 40 μm or less) is removed from the raw material with nitrogen gas The inlet 21 is delivered to the cracking reaction section 2, the feed rate of pulverized coal is 50ml / min, and the flow rate of nitrogen is 2L / min.

[0091] At 1400°C, the cracking reaction of pulverized coal occurs, a...

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Abstract

The invention discloses a druss, a preparation method and preparation equipment thereof. The preparation method of the druss comprises the steps of (A) making carbonaceous material contact with high temperature plasma for fragmentation reaction under the temperature of 1400-1800 DEG C to obtain fragmented products with rich acetylene, (B) conducting acetylene decomposition reaction of the obtained fragmented products to obtain the druss. The druss preparation method can achieve the production of druss by using at least one of coal, fuel oil and natural gas as a carbonaceous material. The druss preparation method simplifies the steps of acetylene purification, shortens the druss production process, and reduces the production cost.

Description

technical field [0001] The invention relates to a method for preparing carbon black, the carbon black prepared by the method and a device for preparing carbon black using the method. Background technique [0002] As a conductive carbon black, acetylene carbon black has been widely used in the battery industry. This is based on the fact that acetylene carbon black has a medium particle size, developed structure, large pore volume, and low ash and volatile content, so the resistivity is extremely high. Low, and good performance such as strong liquid absorption capacity. [0003] In the prior art, coal and other raw materials are used to produce acetylene carbon black. Generally, coke is produced from coal, and then calcium carbide (calcium carbide) is produced from coke and calcium oxide. Calcium carbide is contacted with water vapor to generate acetylene gas. This process is very polluting, and the obtained acetylene gas needs to be purified first, and then passed into the d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09C1/54
CPCC01P2004/64C09C1/54
Inventor 李轩矫卫东
Owner CHNA ENERGY INVESTMENT CORP LTD
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