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Civilian clean coke and production method thereof

A production method and clean technology, applied in coking ovens, petroleum industry, etc., can solve problems such as low calorific value, high carbon content in ash residue, poor sulfur fixation effect, etc., to reduce smog weather, wide source of raw materials, improve Environmental Quality Effects

Inactive Publication Date: 2017-11-10
TAIYUAN UNIV OF TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 1. The calorific value is low, and the briquette needs to add a large amount of clay as a binder, and the calorific value is between 4000 and 5000kcal / kg
[0006] 2. The ignition point is high, it is not easy to ignite, and the flame is short and the fire is slow; when the furnace is stopped, it is easy to break the fire, the burning is not clean, and the carbon content in the ash is high
[0007] 3. The sulfur-fixing effect is poor, and the sulfur-fixing rate of briquettes added with sulfur-fixing agent is generally only about 45%.
Since civil clean coke needs to go through a special process of high-temperature dry distillation, most of the components in the coal-fired combustion-supporting agent will become invalid due to pyrolysis, and no longer have combustion-supporting ability; therefore, the existing coal-fired combustion-supporting agent cannot be used

Method used

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  • Civilian clean coke and production method thereof
  • Civilian clean coke and production method thereof
  • Civilian clean coke and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] (1) Coarsely crush and finely crush limestone, hematite and manganese dioxide raw materials to particle size ≤ 3mm;

[0037] (2) Weigh respectively 20kg of broken limestone, 10kg of hematite, and 5kg of manganese dioxide successively, and simultaneously take by weighing sorghum straw powder (main composition: 42.2wt% of cellulose, 31.6wt% of hemicellulose, 7.6wt% of lignin, Other 18.6wt%) 70kg, mix it together, and stir;

[0038] (3) The evenly stirred mixture is dried at 100°C for 2 hours, and then dry-milled to make the particle size of the raw material ≤150 mesh (0.1mm); then cooled to room temperature, it is the straw powder compound additive (specific composition: cellulose 28.1wt%, hemicellulose 21.1wt%, lignin 5.1wt%, CaCO 3 18.2wt%, MnO 2 4.8wt%, CaO5.9wt%, Al 2 o 3 0.7wt%, SiO 2 8.8wt%, Fe 2 o 3 6.9wt%, MgO0.5wt%).

[0039] (4) Coarsely crush and finely crush the dried limestone, barium slag, manganese ore, alumina and other additive raw materials to a ...

Embodiment 2

[0047] (1) Coarsely crush and finely crush limestone, hematite and manganese dioxide raw materials to particle size ≤ 3mm;

[0048] (2) Weigh respectively 22.5kg of crushed limestone, 13kg of hematite, and 6.3kg of manganese dioxide in turn, and simultaneously weigh rice straw powder (main composition: cellulose 39.6wt%, hemicellulose 34.8wt%, lignin 6.3wt%) %, other 19.3wt%) 65kg, mix it together, and stir;

[0049] (3) The evenly stirred mixture is dried at 112.5°C for 1.8 hours, and then dry-milled to make the particle size of the raw material ≤ 150 mesh (0.1mm); then cooled to room temperature, it is the straw powder compound additive (specific composition: cellulose 24.1wt%, hemicellulose 21.2wt%, lignin 3.8wt%, CaCO 3 20.1wt%, MnO 2 5.9wt%, CaO5.9wt%, Al 2 o 3 0.8wt%, SiO 2 8.8wt%, Fe 2 o 3 8.8wt%, MgO0.6wt%).

[0050] (4) Coarsely crush and finely crush the dried limestone, potassium feldspar, silicon dioxide, magnesium carbonate and other additive raw materials...

Embodiment 3

[0059] (1) Coarsely crush and finely crush limestone, hematite and manganese dioxide raw materials to particle size ≤ 3mm;

[0060] (2) Weigh respectively 25kg of crushed limestone, 15kg of hematite, and 7.5kg of manganese dioxide, and simultaneously weigh wheat straw powder (main composition: cellulose 43.2wt%, hemicellulose 22.4wt%, lignin 9.5wt%) , other 24.9wt%) 60kg, mix it together, and stir;

[0061] (3) The evenly stirred mixture is dried at 125°C for 1.5 hours, and then dry-grinded to make the raw material particle size ≤ 150 mesh (0.1mm); then cooled to room temperature, it is the straw powder composite additive (specific composition: cellulose 24.1wt%, hemicellulose 12.5wt%, lignin 5.3wt%, CaCO 3 22.2wt%, MnO 2 7.0wt%, CaO7.0wt%, Al 2 o 3 1.0wt%, SiO 2 10.3wt%, Fe 2 o 3 10.0wt%, MgO0.7wt%).

[0062] (4) Coarsely crush and finely crush the dried limestone, barium slag, manganese ore, alumina and other additive raw materials to a particle size of ≤3mm;

[006...

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Abstract

The invention discloses civilian clean coke which comprises the following main quality indexes: the heating amount is more than or equal to 5,700 kcal / kg, the ash content is less than or equal to 23 percent, the content of volatile components is less than or equal to 5 percent, the ash fusion point is more than or equal to 1,280 DEG C, the crushing strength is more than or equal to 75 percent, the sulfur fixation rate is more than or equal to 95 percent, the ignition temperature is less than or equal to 420 DEG C, the reactivity is higher than or equal to 40 percent, and the specific surface is 15 to 35 m<2> / g. The civilian clean coke has the advantages of ignitability, long flame, high heating speed, long combustion duration and good desulfuration effect.

Description

technical field [0001] The invention relates to a civil clean coke and a production method thereof. Background technique [0002] Coal combustion is the main way for my country to obtain energy at present and for a long time to come. A large amount of dust, sulfur dioxide, and nitrogen oxides emitted by direct combustion of coal have caused serious harm to the ecological environment, especially the atmospheric environment, leading to serious air pollution in our country. , frequent smog weather. Based on the current situation of coal-burning pollution, the state has issued a series of laws and regulations, and adopted strong punishment measures. Although the implementation of these regulations has played a certain role in curbing the aggravation of coal-burning pollution, it is still far from the goal of environmental protection. [0003] In fact, the environmental pollution caused by coal burning in rural households cannot be ignored. According to preliminary estimates, b...

Claims

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Application Information

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IPC IPC(8): C10B57/06
CPCC10B57/06
Inventor 张智聪刘守军杜文广杨颂
Owner TAIYUAN UNIV OF TECH
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