Columnar activated coke based on waste plastic binder and preparation method of columnar activated coke

A technology of waste plastics and binders, applied in chemical instruments and methods, inorganic chemistry, non-metallic elements, etc., can solve the problems of low adsorption capacity, small specific surface area, high production cost, etc.

Pending Publication Date: 2020-10-30
TAIYUAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the problems of small specific surface area, low adsorption capacity and high production cost in existing binders for prep

Method used

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  • Columnar activated coke based on waste plastic binder and preparation method of columnar activated coke
  • Columnar activated coke based on waste plastic binder and preparation method of columnar activated coke
  • Columnar activated coke based on waste plastic binder and preparation method of columnar activated coke

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A method for preparing columnar active coke based on waste plastic binder, comprising the following steps:

[0027] (1) Raw coal crushing: crush lignite and coking coal into raw coal particles below 15mm;

[0028] (2) Grinding and screening: Grinding and screening lignite and coking coal particles to obtain 180-mesh coal powder;

[0029] (3) Binder: use phenolic plastic as binder, grind and sieve to obtain 180 mesh powder;

[0030] (4) Drying: Dry lignite, coking coal and phenolic plastic at 110°C for 6 hours;

[0031] (5) Kneading: Mix lignite, coking coal and phenolic plastic at room temperature at a mass ratio of 65:25:20 for 20 minutes;

[0032] (6) Molding: the mixture is pressed into shape under a pressure of 15Mpa;

[0033] (7) Carbonization: The molding material is carbonized in a tube furnace, the carbonization temperature is 550°C, and the carbonization time is 30 minutes;

[0034] (8) Activation: Activate in a tube furnace, the activation temperature is 7...

Embodiment 2

[0046] A method for preparing columnar active coke based on waste plastic binder, comprising the following steps:

[0047] (1) Raw coal crushing: crush lignite and coking coal into raw coal particles below 15mm;

[0048] (2) Grinding and screening: Grinding and screening lignite and coking coal particles to obtain 180-mesh coal powder;

[0049] (3) Binder: use phenolic plastic as binder, grind and sieve to obtain 180 mesh powder;

[0050] (4) Drying: Dry lignite, coking coal and phenolic plastic at 110°C for 6 hours;

[0051] (5) Kneading: Mix lignite, coking coal and phenolic plastic at room temperature at a mass ratio of 65:25:30 for 20 minutes;

[0052] (6) Molding: the mixture is pressed into shape under a pressure of 15Mpa;

[0053] (7) Carbonization: The molding material is carbonized in a tube furnace, the carbonization temperature is 550°C, and the carbonization time is 30 minutes;

[0054] (8) Activation: Activate in a tube furnace, the activation temperature is 7...

Embodiment 3

[0064] A method for preparing columnar active coke based on waste plastic binder, comprising the following steps:

[0065] (1) Raw coal crushing: crush lignite and coking coal into raw coal particles below 15mm;

[0066] (2) Grinding and screening: Grinding and screening lignite and coking coal particles to obtain 180-mesh coal powder;

[0067] (3) Binder: use phenolic plastic as binder, grind and sieve to obtain 180 mesh powder;

[0068](4) Drying: Dry lignite, coking coal and phenolic plastic at 110°C for 6 hours;

[0069] (5) Kneading: Mix lignite, coking coal and phenolic plastic at room temperature at a mass ratio of 65:25:40 for 20 minutes;

[0070] (6) Molding: the mixture is pressed into shape under a pressure of 15Mpa;

[0071] (7) Carbonization: The molding material is carbonized in a tube furnace, the carbonization temperature is 550°C, and the carbonization time is 30 minutes;

[0072] (8) Activation: Activate in a tube furnace, the activation temperature is 75...

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Abstract

The invention discloses columnar activated coke based on a waste plastic binder and a preparation method of the columnar activated coke, belongs to the technical field of activated coke production, and can solve the problems of small specific surface area, low adsorption capacity, high production cost and the like in an existing binder for preparing activated coke, wherein the columnar activated coke comprises the following components in parts by mass: 65 parts of raw coal A, 25 parts of raw coal B and 20-40 parts of the waste plastic binder. The preparation method comprises the steps: mixingthe raw materials according to a mass ratio, carrying out kneading molding, carrying out air-isolated heating carbonization in a tubular furnace to obtain a carbonized material, and further activatingthe carbonized material with carbon dioxide to obtain the columnar activated coke. According to the invention, the defects of small specific surface area, low adsorption capacity, high production cost, unstable source quality and the like of the activated coke prepared from a traditional coal tar pitch binder can be overcome, and the effects of treating waste with waste and protecting the environment can be achieved.

Description

technical field [0001] The invention belongs to the technical field of active coke production, and in particular relates to a columnar active coke based on waste plastic binder and a preparation method thereof. Background technique [0002] Activated coke is a granular material with dual properties of adsorption and catalysis. It has the characteristics of activated carbon and overcomes the disadvantages of high price, low mechanical strength and easy crushing of activated carbon. At present, the preparation of shaped activated coke mainly includes carbon raw materials, coking coal and binder, among which binder is an important factor determining its comprehensive performance. [0003] The type, nature and amount of binder have a great influence on the specific surface area and mechanical strength of shaped activated coke. At present, the binders widely used in the preparation of flue gas desulfurization shaped activated coke are pitch and coal tar. Binder. Using high-temp...

Claims

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Application Information

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IPC IPC(8): C01B32/33C01B32/324C01B32/336
CPCC01B32/33C01B32/324C01B32/336
Inventor 刘海玉杨丽金燕樊保国乔晓磊贾里
Owner TAIYUAN UNIV OF TECH
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