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Fire coal efficient catalysis combustion-supporting agent and preparation method and use method thereof

A combustion aid and coal-burning technology, which is applied in the field of high-efficiency combustion aids, can solve the problem of coal combustion with negligible catalytic effect, and achieve the effect of reducing emissions

Inactive Publication Date: 2011-05-18
CENT RES INST OF BUILDING & CONSTR CO LTD MCC GRP +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, our research results have found that some of the above-mentioned substances have little catalytic effect on coal combustion; and some substances that have not yet appeared in the literature and patents, such as basic copper carbonate, ammonium metavanadate, citric acid, and urea, Its catalytic effect is more prominent

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Dosing according to the following components: 40 grams of basic copper carbonate, 25 grams of calcium oxide, 15 grams of citric acid, 10 grams of ammonium metavanadate, 10 grams of urea, 10 grams of borax, and 10 grams of potassium carbonate.

[0033]The above raw materials are mixed, pulverized, finely ground, sieved with a 325-mesh sieve, and packed into bags to prevent moisture absorption.

[0034] The catalytic combustion-supporting effect of the combustion-supporting agent on a mixture of bituminous coal and anthracite coal was tested by static crucible combustion weight loss method. Weigh 5 grams of mixed coal powder into a corundum crucible, put it in a furnace at 900°C for 30 minutes, take it out and air-cool it immediately, weigh its residual weight and calculate the weight loss rate of coal powder as 27.20%; weigh the same coal powder and add 5% The above-mentioned combustion aids were mechanically mixed and loaded into the same corundum crucible. After being ...

Embodiment 2

[0036] Dosing according to the following components: 30 grams of basic copper carbonate, 20 grams of calcium oxide, 10 grams of citric acid, 5 grams of ammonium metavanadate, 5 grams of urea, 5 grams of borax, 5 grams of potassium carbonate, 5 grams of lanthanum oxide, metal Magnesium powder 5 grams.

[0037] The above raw materials are mixed, pulverized, finely ground, sieved with a 325-mesh sieve, and packed into bags to prevent moisture absorption.

[0038] The catalytic combustion-supporting effect of the combustion-supporting agent on mixed pulverized coal was tested by the static crucible combustion weight loss method (the method is the same as in Example 1). Weigh 5 grams of mixed coal powder plus 5% of the above-mentioned combustion enhancer, and put it into a corundum crucible after mechanical mixing. After 900°C×30min, the apparent weight loss rate is 32.18%. After correcting the calculation error caused by the combustion enhancer itself, the pulverized coal The wei...

Embodiment 3

[0040] Dosing according to the following components: 20 grams of basic copper carbonate, 15 grams of calcium oxide, 10 grams of ammonium metavanadate, 5 grams of citric acid, 10 grams of urea, 5 grams of borax, 5 grams of potassium carbonate, 10 grams of lanthanum oxide, metal Magnesium powder 10 grams, ferric nitrate 5 grams.

[0041] The above raw materials are mixed, pulverized, finely ground, sieved with a 280-mesh sieve, and packed into bags to prevent moisture absorption.

[0042] The catalytic combustion-supporting effect of the combustion-supporting agent on a mixture of bituminous coal and anthracite coal was tested by static crucible combustion weight loss method. Weigh two parts of 5 grams of mixed granular coal, one of which is added with 10% combustion enhancer, put them into the same corundum crucible, put them in a furnace at 900°C for 90 minutes, turn off the power and wait for the furnace to cool naturally, take out the crucible and find two The coal samples ...

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Abstract

The invention provides a fire coal efficient catalysis combustion-supporting agent and a preparation method and use method thereof. The combustion-supporting agent provided by the invention comprises the following components in parts by weight: 20-40 parts of basic copper carbonate, 10-25 parts of calcium oxide, 5-20 parts of citric acid, 5-10 parts of ammonium metavanadate, 5-10 parts of urea, 5-10 parts of potassium carbonate and 5-10 parts of borax. The combustion-supporting agent can also contain 5-10 parts of lanthanide oxide, 5-15 parts of magnesium powder and 0-10 parts of iron nitrate. The invention has the following beneficial effects: the components of the combined combustion-supporting agent release or transfer active oxygen at the high temperature; the macromolecular structures of coal are damaged to break the bridge bonds between the connecting structure units, improve the combustibility of fire coal and increase the burn-off rate of coal, thus fire coal can be fully utilized and the aim of energy saving can be achieved; and the combustion-supporting agent performs combination reactions with the combustion products of coal such as SO2 and the generated solids which are difficult to volatilize enter ash, thus the emissions of gaseous pollutants can be reduced.

Description

technical field [0001] The invention relates to a high-efficiency combustion aid, in particular to a coal-burning high-efficiency catalytic combustion aid and its preparation method and use method. Background technique [0002] Coal is evolved from plant residues through complex biochemical and physical chemical actions. It is a polymer condensation polymer in three-dimensional space rather than a polymer. Its macromolecules are composed of many structural units with similar but different structures. Units The core is polycondensed aromatic ring, hydrogenated aromatic ring or various heterocyclic rings, and the polycondensed rings in the basic unit are composed of -O-, -CH 2 - and so on to form a bridge connection. [0003] my country's coal consumption in the first quarter of 2009 was 674 million tons. Today, China's coal consumption is larger than that of the United States, the European Union and Japan combined. The massive use of coal has not only led to an increase in ...

Claims

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Application Information

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IPC IPC(8): C10L9/12C10L9/10
Inventor 张正富张君博李洪会刘兴平刘斌
Owner CENT RES INST OF BUILDING & CONSTR CO LTD MCC GRP
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