Coal combustion improver

A combustion-supporting agent and coal technology, applied in the field of coal-fired additives, can solve problems such as excessive nitrogen oxide emissions and air pollution, and achieve the effects of reducing environmental pollution, increasing gas production, and improving combustion-supporting effects

Active Publication Date: 2015-12-09
镇江华龙煤质制样设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, many kinds of coal combustion-supporting agents have been used in production. Although their combustion-supporting effect is very significant, they still pollute the air after combustion. SO 2 and excessive nitrogen oxide emissions

Method used

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  • Coal combustion improver

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Party:

[0027] Nano calcium oxide 20g, activated carbon 4g, chromium trioxide 2g, copper nitrate 8g,

[0028] Potassium nitrate 5g, cerium nitrate 4g, ferrocene 6g, diatomaceous earth 10g,

[0029] Ammonium bicarbonate 2g, diammonium phosphate 8g, polyoxyethylene castor oil 0.2g.

[0030] Preparation:

[0031] (1) Take activated carbon, chromium trioxide, copper nitrate, potassium nitrate, cerium nitrate, ferrocene and diatomaceous earth, grind them into fine powder, add deionized water, stir for 40 minutes, and get the mixed solution A;

[0032] (2) Take nano-calcium oxide, ammonium bicarbonate and diammonium phosphate, add deionized water, stir for 30 minutes, and get mixed solution B;

[0033] (3) Mix the above mixed solution A and mixed solution B, add polyoxyethylene castor oil, and make a water dispersant according to the conventional method.

[0034] The concentration of the resulting coal combustion improver is 60%.

Embodiment 2

[0036] Party:

[0037] Nano calcium oxide 20g, activated carbon 12g, chromium trioxide 10g, copper nitrate 16g,

[0038] Potassium nitrate 15g, cerium nitrate 10g, ferrocene 12g, diatomaceous earth 20g,

[0039] Ammonium bicarbonate 10g, diammonium phosphate 16g, polyoxyethylene castor oil 0.8g.

[0040] Preparation:

[0041] (1) Take activated carbon, chromium trioxide, copper nitrate, potassium nitrate, cerium nitrate, ferrocene and diatomaceous earth, grind them into fine powder, add deionized water, and stir for 60 minutes to obtain the mixed solution A;

[0042] (2) Take nano-calcium oxide, ammonium bicarbonate and diammonium phosphate, add deionized water, stir for 50 minutes, and get mixed solution B;

[0043] (3) Mix the above mixed solution A and mixed solution B, add polyoxyethylene castor oil, and make a water dispersant according to the conventional method.

[0044] The concentration of the resulting coal combustion improver is 80%.

Embodiment 3

[0046] Party:

[0047] Nano calcium oxide 20g, activated carbon 8g, chromium trioxide 6g, copper nitrate 12g,

[0048] Potassium nitrate 10g, cerium nitrate 7g, ferrocene 9g, diatomaceous earth 15g,

[0049] Ammonium bicarbonate 6g, diammonium phosphate 12g, polyoxyethylene castor oil 0.5g.

[0050] Preparation:

[0051] (1) Take activated carbon, chromium trioxide, copper nitrate, potassium nitrate, cerium nitrate, ferrocene and diatomaceous earth, grind them into fine powder, add deionized water, and stir for 50 minutes to obtain the mixed solution A;

[0052] (2) Take nano-calcium oxide, ammonium bicarbonate and diammonium phosphate, add deionized water, stir for 40 minutes, and get mixed solution B;

[0053] (3) Mix the above mixed solution A and mixed solution B, add polyoxyethylene castor oil, and make a water dispersant according to the conventional method.

[0054] The concentration of the resulting coal combustion improver is 70%.

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Abstract

The invention provides a coal combustion improver. The coal combustion improver is prepared mainly by using the following components in parts by weight: 20 parts of nanometer calcium oxide, 4 to 12 parts of activated carbon, 2 to 10 parts of chromium trioxide, 8 to 16 parts of copper nitrate, 5 to 15 parts of potassium nitrate, 4 to 10 parts of cerium nitrate, 6 to 12 parts of ferrocene, 10 to 20 parts of kieselguhr, 2 to 10 parts of ammonium hydrogen carbonate, 8 to 16 parts of diammonium phosphate and 0.2 to 0.8 parts of polyoxyethylated castor oil. Compared with the prior art, the coal combustion improver provided by the invention not only can increase the gas yield and obviously improve the combustion improving effect, but also can greatly reduce the emission of SO2 and nitrogen oxide and reduce the environmental pollution.

Description

technical field [0001] The invention relates to a coal combustion accelerant, which belongs to the field of coal combustion additives. Background technique [0002] Coal is one of the main energy sources in the world. Due to the continuous mining of human beings, the storage of coal is getting less and less, and the burning of coal in large quantities has also caused great pollution to the air. Therefore, the rational use of coal resources and the improvement of coal combustion efficiency not only have high economic benefits, but also have great social significance. It is of great significance to study the combustion methods that are beneficial to the five aspects of high-efficiency combustion, low-load stable combustion, low pollution, prevention of slagging and high-temperature corrosion. [0003] At present, many kinds of coal combustion-supporting agents have been used in production. Although their combustion-supporting effect is very significant, they still pollute the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L9/10
Inventor 周睿
Owner 镇江华龙煤质制样设备有限公司
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