Coal combustion catalyst with demercuration effects and preparation method thereof

A coal-burning catalyst and catalyst technology, which can be used in fuels, solid fuels, petroleum industries, etc., can solve problems such as human harm, and achieve the effects of reducing emissions, increasing activity, and promoting combustion rate.

Inactive Publication Date: 2019-05-17
GUANGXI NANNING ZHICUI SCI TECH CONSULTATION CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in recent years, it has been found that the discharge of harmful metal elements from coal-fired power plants is also a problem that cannot be ignored. Although the content of heavy metal mercury is very small, it is extremely harmful to the human body due to its volatility, high toxicity and bioaccumulation characteristics.

Method used

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  • Coal combustion catalyst with demercuration effects and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Grind 15 parts of loofah, 11 parts of rice straw, and 5 parts of corn stalks into 28-mesh powder, soak in 2wt% sodium hydroxide solution for 90 minutes, filter with mesh cloth, wash with distilled water, and finally place in a 68°C refrigerator Dried in a drying oven to obtain pretreated powder;

[0027] The concentration is 0.03mol.L -1 17 parts of cerium nitrate solution, the concentration is 0.005mol.L -1 6.5 parts of yttrium nitrate solution, the concentration is 0.005mol.L -1 4 parts of gadolinium nitrate solution are placed in reaction kettle A, then add 85 parts of dehydrated alcohol, 19 parts of diethanolamine, 7.5 parts of ammonium persulfate and stir and mix to obtain a mixed solution, then add Al 2 o 3 18 parts, 9 parts of ferric nitrate, CuCl 2 7.5 parts were added to the mixed solution, with 2mol.L -1 solution and 2mol.L -1 Strong sodium oxide solution adjusted the pH value to 8.5, then ultrasonicated for 60 minutes under the condition of ultrasonic p...

Embodiment 2

[0031] Grind 16.5 parts of loofah, 10.5 parts of rice straw, and 4.8 parts of corn stalks into 30-mesh powder, soak in 2wt% sodium hydroxide solution for 93 minutes, filter with mesh cloth, wash with distilled water, and finally place in a 70°C refrigerator. Dried in a drying oven to obtain pretreated powder;

[0032] The concentration is 0.03mol.L -1 16 parts of cerium nitrate solution, the concentration is 0.005mol.L -1 7.5 parts of yttrium nitrate solution, the concentration is 0.005mol.L -1 3 parts of gadolinium nitrate solution are placed in reaction kettle A, then add 90 parts of dehydrated alcohol, 19.5 parts of diethanolamine, 6 parts of ammonium persulfate and stir and mix to obtain a mixed solution, then add Al 2 o 3 17 parts, 9.5 parts of ferric nitrate, CuCl 2 7 parts, added to the mixed solution, with 2mol.L -1 solution and 2mol.L -1 Adjust the pH value to 7 with a strong sodium oxide solution, then ultrasonicate for 60 minutes under the conditions of ultras...

Embodiment 3

[0036] Grind 18 parts of loofah, 10 parts of rice straw, and 4 parts of corn stalks into 25-mesh powder, soak in 2wt% sodium hydroxide solution for 100 minutes, filter with mesh cloth, wash with distilled water, and finally place in a 65°C refrigerator Dried in a drying oven to obtain pretreated powder;

[0037] The concentration is 0.03mol.L -1 15 parts of cerium nitrate solution, the concentration is 0.005mol.L -1 6 parts of yttrium nitrate solution, the concentration is 0.005mol.L -1 3.8 parts of gadolinium nitrate solution are placed in reactor A, then add 82 parts of dehydrated alcohol, 18 parts of diethanolamine, 7 parts of ammonium persulfate and stir and mix to obtain a mixed solution, then add Al 2 o 3 16 parts, 8 parts of ferric nitrate, CuCl 2 6.5 parts, added to the mixed solution, with 2mol.L -1 solution and 2mol.L -1 Adjust the pH value to 8 with a strong sodium oxide solution, then ultrasonicate for 60 minutes under the conditions of ultrasonic power of 80...

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Abstract

The invention belongs to the technical field of catalyst processing, and particularly relates to a coal combustion catalyst with demercuration effects and a preparation method thereof. The invention particularly relates to the high-activity coal combustion catalyst and the preparation method thereof. The catalyst is prepared from the following raw material ingredients: a cerous nitrate solution, Al2O3, ferric nitrate, CuCl2, a yttrium nitrate solution, a gadolinium nitrate solution, MnO2, diatom ooze, hydrotalcite, palygorskite, calcium carbonate, loofah sponge, straw, corn stalks, chitosan, citric acid, hexahydrocresol, polyoxyethylene ether and a raising agent. The catalyst has high chemical stability; the activity can be maintained in a long time; the catalyst can be recovered to be repeatedly used; by using the catalyst, the combustion speed of fire coal can be effectively accelerated; the effects of denitration, sulfur fixation and demercuration can be achieved; the discharge quantity of smoke can be reduced; the environment pollution is reduced, and the application value is high.

Description

technical field [0001] The invention belongs to the technical field of catalyst processing, and in particular relates to a coal-burning catalyst capable of removing mercury and a preparation method thereof. Background technique [0002] A catalyst is a substance that can accelerate a chemical reaction and is not consumed before and after the reaction. The use of a catalyst during a chemical reaction can promote the reaction, improve production efficiency, save resources and energy, reduce environmental pollution, and conform to sustainable development. strategic direction. The role of the catalyst can be attributed to three aspects: (1) increase the reaction rate and increase the reaction efficiency; (2) determine the reaction path and have excellent selectivity; (3) reduce the reaction temperature. [0003] Coal is an important energy and chemical raw material, and it is a non-renewable resource. my country is in a period of medium and high-speed economic growth, and air ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L9/10
Inventor 陈燕妮
Owner GUANGXI NANNING ZHICUI SCI TECH CONSULTATION CO LTD
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