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Activated coke and preparation method and application thereof

A technology of activated coke and activation treatment, which is applied in the direction of separation methods, chemical instruments and methods, and other chemical processes. It can solve problems such as endangering human health, destroying the ecological environment, and affecting human genes, etc., and achieves good desulfurization effect and large accumulation ratio. , The effect of high activation treatment yield

Inactive Publication Date: 2011-07-20
CCTEG CHINA COAL RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, air pollution also seriously damages the ecological environment and seriously endangers human health, and even affects human genes and causes genetic diseases

Method used

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  • Activated coke and preparation method and application thereof
  • Activated coke and preparation method and application thereof
  • Activated coke and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0071] Example 1: Preparation and Performance Measurement of Active Coke

[0072] 1. Preparation of active coke

[0073] About 1.6t of Inner Mongolia lignite and about 0.4t of Hebei anthracite are mixed and pulverized. The particle size of pulverized coal is less than 200 mesh, about 180 mesh. Add about 0.84t of high-temperature coal tar and about 0.06t of catalyst MgO to the coal raw material particles at 70°C and knead for 20min, and then press at 800kgf / cm 2 Extruded to obtain dry charcoal strips. The dry charcoal strips were subjected to carbonization treatment and steam activation treatment in an external heat type carbonization and activation rotary furnace. The final temperature of the carbonization treatment was 650°C and the time was 30 minutes, and the activation treatment temperature was 850°C and the activation treatment time was 30 minutes. Water vapor is about 14t.

[0074] 2. Performance measurement

[0075] Active coke with a particle diameter (Φ) of 9 mm w...

Embodiment 2

[0076] Embodiment 2: Preparation and performance measurement of active coke

[0077] 1. Preparation of active coke

[0078] About 1.2t of Inner Mongolia lignite and about 0.8t of Hebei anthracite are mixed and pulverized. The particle size of pulverized coal is 325 mesh. Add about 0.8t of high-temperature coal tar and catalyst K to coal raw material particles at 50°C 2 CO 3 Knead about 0.05t for 25min, then press 1000kgf / cm 2 Extruded to obtain dry charcoal strips. The dry charcoal strips were subjected to carbonization treatment and steam activation treatment in an external heat type carbonization and activation rotary furnace. The final temperature of the carbonization treatment was 650°C for 30 minutes, the activation treatment temperature was 850°C, and the activation treatment time was 50 minutes. The water vapor is about 16t.

[0079] 2. Performance measurement

[0080] Active coke with a particle size (Φ) of 12 mm was obtained, about 1.70 t, with a yield of 75%. ...

Embodiment 3

[0082] Example 3: Preparation and Performance Measurement of Active Coke

[0083] 1. Preparation of active coke

[0084] Mix about 1.33t of Inner Mongolian lignite and about 0.57t of Hebei anthracite to make pulverized coal. The particle size of coal powder is 200 mesh. Add about 0.79t of high-temperature coal tar and mixed catalysts MgO and K to the raw coal particles at 60°C. 2 CO 3 About 0.06t kneading for 30min, then pressure 900kgf / cm 2 Extruded to obtain dry charcoal strips. The dry charcoal strips were subjected to carbonization treatment and steam activation treatment in an external heat type carbonization and activation rotary furnace. The carbonization treatment temperature was 600°C, the carbonization treatment time was 30 minutes, the activation treatment temperature was 800°C, and the activation treatment time was 40 minutes. The water vapor is about 17t.

[0085] 2. Performance measurement

[0086] About 1.78t of activated coke with a particle diameter (Φ) o...

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Abstract

The invention discloses an activated coke and a preparation method and an application thereof. The reaction device of the present activated coke desulfuration by dry process is in the manner of cross flow moving bed, so the special activated coke for desulfuration is required to have good desulfuration performance, high strength and burning point, better antioxygenic property, and also increasingly higher requirements for economical efficiency. The preparation method of the activated coke in the invention includes the following steps: 1) coal material granules are kneaded and formed; the coalmaterial granules are composed of 6 to 8 parts of brown coal and 2 to 4 parts of anthracite by weight; 2) carbonizing treatment is carried out on the products in the step 1) so as to obtain carbonized processing products; 3) activating treatment is carried out on the carbonized processing products by using water vapor activation processing method so as to obtain activated coke. The invention alsodiscloses the activated coke prepared according to the preparation method and the application in flue gas desulfurization. The preparation method in the invention has high activation processing yield, great bulk specific weight, good strength and better desulfurization effect.

Description

technical field [0001] The invention relates to a method for preparing active coke, the active coke prepared by the method and its application in flue gas desulfurization. Background technique [0002] Coal is the main energy source in my country and also an important chemical raw material. my country is not only rich in coal resources, but also has a complete variety and different properties. At present, my country's coal mining and consumption both rank first in the world. With the rapid growth of my country's economy, the market demand for coal-based adsorption materials such as activated coke and activated carbon produced with coal as raw material is increasing. Due to the different properties of activated carbon and activated coke produced by different coal types, they all have unique pore structures and excellent adsorption properties, so they are widely used in various fields such as national defense, aerospace, medicine and health, environmental protection, and peo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B31/10B01J20/20B01J20/30B01D53/02C01B32/336
Inventor 梁大明孙仲超李兰廷李雪飞夏景源董卫果刘春兰国晖王鹏邓一英文芳熊银武李艳芳王岭
Owner CCTEG CHINA COAL RES INST