WO2017018628A1 - Fossil fuel and livestock manure combustion promoter for harmful discharge gas and clinker inhibition and for complete combustion, and preparation method therefor - Google Patents

Abstract

The present invention relates to a fossil fuel and livestock manure fuel combustion promoter for harmful discharge gas and clinker inhibition and for complete combustion, and a preparation method therefor and, more specifically, to: an environmentally friendly fuel combustion promoter capable of removing clinker and burning unburned carbon, thereby reducing the amount of coal to be used, reducing harmful discharge gas caused by the combustion of coal and increasing the combustion rate of livestock manure; and a method for preparing the promoter.

Description

Fossil fuel and accumulator combustion accelerator and its manufacturing method for suppression of harmful emissions and clinker and complete combustion

The present invention relates to a combustion accelerator and a method for producing the exhaust gas and clinker suppression and complete combustion, more specifically, to remove the clinker and to burn the unburned carbon powder to reduce the amount of coal used as well as harmful emissions from coal combustion. The present invention relates to an environmentally friendly fuel combustion accelerator and a method for producing the accelerator, which can reduce the gas and increase the combustion rate of the shaft.

Coal contains a small amount of volatiles and a large amount of fixed carbon ash, which is low combustible and generates a large amount of ash during combustion. Ash or ash ash of a considerable amount of fuel is easily deposited on the walls and floors of boilers and various furnaces, and is exposed to many problems in operation.It is difficult to burn completely, and toxic gases harmful to humans are emitted during combustion, and fine dust, which is an air pollution source, Various side effects are increasing.

The problem is that the clinker, which is the fuel ash during coal combustion, does not suppress the slugging caused by entanglement in the boiler or the furnace, causing the scale to accumulate for a long time.

It is causing. Coal forming a large amount of ash generates a large amount of clinker compared to mineral oil. When burning a high ash content such as coal, ash or ash of a large amount of fuel is easily deposited on the walls or floors of boilers and various furnaces, which exposes to many problems in operation. Toxic gases are emitted and various side effects such as fine dust, which is an air pollution source, are increasing.

Promoting combustion in combustion furnaces or boilers that burn coal or mineral oil, and improving the efficiency of combustion by improving the disadvantages of poor thermal efficiency due to the formation of scales such as chutes and sludges fixed by incomplete combustion of the surface of the furnace. Means have been studied. In the case of mineral oil, a technique is known in which a mixture of an organic metal, a surfactant, and various organic solvents is mixed and added to a fuel to simply increase combustion efficiency.

Fuel combustion accelerators do not inhibit the slugging that clinker, which is a fuel ash during combustion, becomes entangled and solidified in a boiler or furnace, causing scales to accumulate over time and cause other pollution problems.

Korean Patent No. 0642146 discloses a fuel additive composition that improves cold resistance, prevents slag, and effectively removes clinker, but has a problem that precipitation occurs when stored for a long time because the additive contains a solid solution. Korean Patent Publication No. 2004-22797 discloses a remover that removes substances such as glycerin, amine stabilizers, hydrogen peroxide, sodium hydroxide and borax, chutes, dust, clinks and sludge, but is highly corrosive sodium hydroxide and amine. The use of a series of stabilizers still makes it difficult to fully suppress the lifetime of the furnace and the generation of nitrogen oxides from combustion, and there are still limitations in reducing the generation of scale and clinker in the furnace walls.

In order to prevent clinker, Korean Patent 10-0642146 uses 5.0-25% by weight of alkali metal compound, but there is a problem in that it does not promote combustion when less than 25%. In Korean Patent 10-0544568, when hydrogen peroxide is mixed with alkali metal compound, It is difficult to anticipate the amount of oxygen neutralized and produced when hydrogen peroxide burns. In addition, since the high melting point compound is not used in a mixture, the combustion rate of fuel coal and coal cannot be increased. Therefore, it is difficult to completely remove dust, CO, NO, SO, soot, and clinker generated during combustion.

The present invention provides a fuel combustion accelerator which is added to coal or mineral oil used as fuel in a combustion apparatus such as a boiler or a combustion furnace internal combustion engine, thereby completely burning the fuel to increase fuel efficiency and removing clinker as well as incomplete combustion of coal. It is an object of the present invention to provide a fuel combustion accelerator composition that can reduce the amount of harmful emissions such as carbon monoxide.

The present invention comprises the steps of mixing 20 to 60 parts by weight of a silicate compound mixed with a liquid potassium silicate and a liquid sodium silicate in a weight ratio of 0.5 to 2: 0.5 to 5 by stirring at 60 to 90 ℃ for 20 to 30 minutes (S1); Stirring by mixing 1 to 10 parts by weight of the organic alcohol compound (S1) and mixing the mixture (S2); 20 to 50 parts by weight of the alkali metal compound in the mixture (S2) at 80 to 95 ℃ and stirring for 20 to 30 minutes (S3); (S3) administering 1 to 10 parts by weight of sodium borate at 50 to 60 to the mixture and stirring (S4); And one or more high melting point compounds selected from the group consisting of Al ₂ O ₃ , MgO and MgCO ₃ dissolved in water to prepare a 20% by weight solution, and then a high melting point of 1 to 5% by weight of a fatty acid ester dispersant. 1 to 10 parts by weight of the compound dispersion is added and mixed (S4) and then mixed in the mixture (S5); characterized in that consisting of fossil fuel and fuel accumulation promoter for the suppression of harmful emissions and clinker and complete combustion It is about.

The fuel combustion promoter composition of the present invention can reduce the high efficiency and environmental pollution during the combustion of fossil fuels and can remove the clinker, which contributes to the reduction of maintenance cost and the longevity of the combustion apparatus, and the composition itself has excellent cold resistance and sediment. It is easy to handle and transport because it can be used without concentration.

1 is a process chart showing a fuel combustion promoter manufacturing process of the embodiment of the present invention.

Figure 2 is a photograph showing the appearance of clinker discoloration before and after using the product of the present invention.

Figure 3 is an embodiment of measuring the amount of heat using the axial fraction of another embodiment of the present invention.

Figure 4 is a photograph of the state of combustion before and after adding the fuel combustion promoter of the present invention.

The present invention comprises the steps of mixing 20 to 60 parts by weight of a silicate compound mixed with a liquid potassium silicate and a liquid sodium silicate in a weight ratio of 0.5 to 2: 0.5 to 5 by stirring at 60 to 90 ℃ for 20 to 30 minutes (S1);

1 to 10 parts by weight of an organic alcohol compound mixed with one or more organic alcohol compounds selected from the group consisting of glycerol, ethylene glycol and diethylene glycol in the same proportion, followed by stirring and mixing (S1) (S2); 20 to 50 parts by weight of one or more alkali metal compounds selected from the group consisting of Mn (OH) ₂ , Ba (OH) ₂ , Fe (OH) ₃ , Ca (OH) ₂ , KOH and NaOH in the mixture (S2) Dosing at 95 ℃ and stirring for 20-30 minutes (S3); 1 to 10 parts by weight of sodium borate to the mixture (S3) at 50 ~ 60 ℃ agitation and stirring (S4); And one or more high melting point compounds selected from the group consisting of Al ₂ O ₃ , MgO and MgCO ₃ dissolved in water to prepare a 20% by weight solution, and then a high melting point of 1 to 5% by weight of a fatty acid ester dispersant. 1 to 10 parts by weight of the compound dispersion is added and mixed (S4) and then mixed in the mixture (S5); It relates to a method for producing a fuel combustion promoter for the suppression of harmful emissions and clinker and complete combustion.

The manufacturing method of the present invention is characterized in that 5 to 10 parts by weight of the axial component is added in the step (S5) of mixing in the mixture (S4).

The present invention is to suppress the production of dust (DUST), carbon monoxide (CO), nitrogen oxides (NO), sulfur oxides (SO), Soot, Clinker produced during the combustion of fuel coal and coal using food waste, manure and waste wood The present invention relates to a method and composition of a fuel accelerator which prevents corrosion of a peripheral device and can reduce fuel coal and coal consumption by 10-25% by improving heat transfer by complete combustion.

The present invention reduces and suppresses the generation of dust, CO, NOx, SOx, soot and clinker generated through complete combustion when fuel coal and coal are burned, and a certain amount of film (Film) on the surface of the furnace and peripheral devices. ) To prevent the adsorption of the clinker.

Clinker is classified as Slagging and Fouling. Slagging is a phenomenon where coal particles are discharged in a molten state in a region where the temperature of the combustion chamber is higher than the melting point of coal during the combustion process and then quenched when it collides with the boiler water pipe wall and solidifies and accumulates in the water cooling unit. Fouling is a volatile component (Na ₂ SO ₄ , Na ₂ O, CaSO ₄ ) contained in the coal or coal volatilized during combustion, and Fe, S and K and low melting point compounds (SiO ₂ , Fe ₂ O) contained in the combustion gas ₃ ) and low melting point materials {K ₂ Fe (SO ₄ ) ₃ , Na ₂ Si ₂ O ₅ , Na ₂ SO ₄ } is produced. Each Melting Point is 618, 874 and 884.

In the present invention, the principle of the fuel combustion accelerator is 1 to 10 parts by weight of a dispersion prepared by dispersing a high melting point compound Al ₂ O ₃ , MgO, MgCO ₃ and the like into a fatty acid ester-based dispersant, liquid sodium silicate and liquid potassium silicate 20 to 60 parts by weight of a mixture of 20 to 60 parts by weight of an alkali metal compound consisting of 20 to 60 parts by weight of a mixture of Mn (OH) ₂ , Ba (OH) ₂ , Fe (OH) ₃ , Ca (OH) ₂ , KOH and NaOH, and sodium borate 1-10 parts by weight, 1-10 parts by weight of a mixture of two or more selected from Gliycerol, Ethlene glycol, and Diethlene glycol are used.

The present invention uses a mixture of compounds that release a large amount of oxygen molecules at low temperature and a high melting point compound having a low vapor pressure at a high temperature (1,400 ° C.) to increase fuel coal and coal combustion rate to prevent low melting point.

In the present invention, a high melting point compound is used to prevent low melting point compounds generated by reacting with Na, K or Fe and SiO ₂ or S through clinker porosity and ion exchanging, and is also converted into high melting point compounds at high temperature to increase the combustion rate. Used as a low melting point prevention and desulfurization agent.

In the present invention, the liquid potassium silicate and the liquid sodium silicate can dissolve alkali compounds and organic compounds, and are changed into water glass components by pyrolysis, thereby reducing and suppressing the occurrence of clinker.

In the present invention, by using two or more 1: 1 mixtures of Glycerol, Ethlene glycol, and diethylene glycol to enhance the combustion effect, help dissolution of sodium borate, improve the sludge dispersion and fluidity, and lower the freezing point to help overcome seasonal limitations. .

In the present invention, the alkali metal compound generates oxygen at a high temperature to induce secondary combustion of the scale attached to the inner wall of the furnace, supplements insufficient oxygen in the furnace to induce complete combustion, and additionally generates alkali ions (K, Na) combines with harmful gases to reduce air pollutants and prevent corrosion of the furnace interior due to sulfuric acid.

In the present invention, sodium borate decomposes when the combustion temperature rises and releases oxygen, leading to complete combustion of incompletely combusted organic matter, and corrosion caused by alkali ions (Na) generated from sodium borate combined with sulfuric acid to form Na ₂ SO ₄ . It prevents corrosion and reduces Sox and decomposes at high temperatures to coat the furnace inner wall to prevent corrosion, increasing thermal conductivity and extending pipe life.

In the present invention, by dispersing with a 20 wt% aqueous solution composed of high melting point compounds Al ₂ O ₃ , MgO and MgCO ₃ using a fatty acid ester-based dispersant, it has a characteristic of having a low vapor pressure at 1,400 in the furnace, thereby increasing the combustion rate of fuel coal and coal. Prevent low melting point;

Liquid potassium silicate and liquid sodium silicate used in the fuel combustion promoter composition of the present invention may be used for the purpose of reducing harmful gases and may serve to remove the clinker inside the boiler. In addition, the sodium borate used in the fuel combustion promoter composition of the present invention generates generator oxygen and induces complete combustion of unburned carbon to ensure cold resistance, and can achieve the purpose of suppressing clinker generation by coating a boiler inner tube.

When the fuel additive composition of the present invention is used in combination with coal, it is possible to generate a large amount of generator oxygen at a temperature of 900 or more inside the boiler. When the generator oxygen acts as a direct oxygen source for combustion of coal, The combustion of coal in the boiler can be promoted more efficiently.

Sodium (Na) mixed in the fuel combustion promoter composition is combined with sulfurous acid gas (SO ₂ ) to form sodium sulfate (Na ₂ SO ₄ ) and can be removed by inducing gaseous sulfurous acid gas to a solid. The fuel combustion promoter composition of the present invention leads to complete combustion, minimizes carbon monoxide (CO) generation, and reduces the bottom-ash, which is generally the ash remaining from coal, as well as fly, which is an advanced cement raw material extracted from a thermal power plant. -ash increments The fuel combustion promoter compositions of the present invention act organically with each other, resulting in an excellent effect of increasing combustion efficiency, reducing pollutant gases, removing clinker, cold resistance and preventing sediment formation. The fuel additive composition of the present invention is a water-soluble syrup solution, which is easy to handle as a non-flammable material, and is safe because it is low in reactivity with metals such as iron or copper.

Clinker is a mass of ash produced by combustion. In the process of burning coal, it refers to a material formed by melting the ash contained in the coal by heat. This clinker production is relatively increased when using coal with a low melting point of coal. Influence of reducible airflow inside the combustion chamber due to lack of oxygen, combustion imbalance due to fluctuations in the internal load of the boiler, problems with boiler structure and operation characteristics, use of coal that is not suitable for boiler design, and various reasons when the supply of coal is not equal. The clinker will be created. When the ash of coal melts during a certain time of exposure in the furnace at a temperature of around 1500 ° C. for more than a certain time, clinker is attached to a relatively low furnace wall (about 600 ° C.). It is formed by fusion, and this phenomenon is repeated, and the growth of clinker continues.

Looking at the principle of clinker removal of the fuel combustion promoter composition of the present invention, when the combustion accelerator composition is combusted, some components are decomposed, but some components remain as solid components at 1100 ° C. or more and react with ash and metal components while adhering to the furnace wall together with the ash. It is not petrified and serves to peel the clinker from the furnace wall. The clinker does not grow and is eliminated, and the clinker already produced is also eliminated from the furnace wall by the use of the combustion promoter composition.

The fuel combustion promoter composition of the present invention is a liquid at room temperature, but when heated at a high temperature (1100 ° C.), it is changed into powder particles. The changed particles are a material which is peeled off without being fused to ash of a metal component or refractory mortar coal. The fuel combustion promoter of the present invention can be mainly used as an additive for coal and petroleum. In addition, the effect is relatively excellent in various aspects compared to the fuel additives that are commercially available or disclosed in the prior literature. When using the fuel combustion promoter composition may be used by diluting 20 to 80 times the weight of the fuel accelerator composition using water. The amount of the combustion accelerator to be used is not particularly limited, but when coal is used as the fuel, the weight ratio of the coal and the fuel combustion accelerator to the coal fuel may be used in an amount corresponding to 1000 parts by weight to 1: 4000: 1 by weight.

3 and 4 are not only fossil fuels, but also for treating the most problematic constituents, but there are also methods by microorganisms that require too long time and increase costs. Therefore, although there is a method of incineration of the processing of the shaft powder, the present invention developed to solve the problem that the complete combustion is not possible at the time of incineration and a large amount of heat energy is required to increase the cost, it can be seen that the combustion amount is increased even by experiments.

The fossil fuel and the fuel accumulation accelerator for the combustion and suppression of harmful emissions and clinker of the present invention is added to the mixture 5 to 10 parts by weight in the step (S5) of mixing in the mixture, when burning the It can be seen that the increase of about 2931.5304cal / g at 2673.2426cal / g, 2887.1906 at 2588.3528cal / g, and about 10% at 2582.847cal / g. When spraying or containing the fuel additive of the present invention has a feature that can increase the amount of heat. The stock is preferably any one selected from cattle and pigs. Thermal efficiency increased further in both the case where the fuel combustion accelerator was mixed with the fuel combustion accelerator and dried and incinerated, and when the fuel combustion promoter of the present invention was sprayed and incinerated before incineration.

Claims (5)

1. 20 to 60 parts by weight of a mixture of liquid silicate and sodium silicate at a weight ratio of 0.5 to 2: 0.5 to 5; and stirring by mixing at 60 to 90 ° C. for 20 to 30 minutes (S1);

   Stirring by mixing 1 to 10 parts by weight of the organic alcohol compound (S1) and mixing the mixture (S2);

   20 to 50 parts by weight of the alkali metal compound in the mixture (S2) at 80 to 95 ℃ and stirring for 20 to 30 minutes (S3);

   (S3) administering 1 to 10 parts by weight of sodium borate at 50 to 60 to the mixture and stirring (S4); And

   High melting point compound prepared by dissolving any one or more high melting point compounds selected from Al ₂ O ₃ , MgO and MgCO ₃ into a 20% by weight solution by dispersing with 1-5% by weight of a fatty acid ester-based dispersant 1 to 10 parts by weight of the dispersion is added and mixed (S4) and then mixed with the mixture (S5); fossil fuel and cyanide fuel combustion accelerator for the combustion and suppression of harmful emissions and clinker, characterized in that consisting of.
2. According to claim 1, wherein the organic alcohol compound is selected from the group consisting of glycerol, ethylene glycol and diethylene glycol selected from one or more of the fossil for suppressing harmful emissions and clinker characterized in that the same mixture Process for producing fuel and catalyzed fuel combustion accelerators.
3. The method of claim 1, wherein the alkali metal compound is at least one selected from the group consisting of Mn (OH) ₂ , Ba (OH) ₂ , Fe (OH) ₃ , Ca (OH) ₂ , KOH and NaOH. Process for producing fossil fuel and accumulator fuel combustion accelerator for exhaust and clinker suppression and complete combustion.
4. The method of claim 1, wherein the method is mixed with the mixture (S5) in the condensate is added to 5 to 10 parts by weight additional fossil fuel and fossil fuel for the suppression and complete combustion, Combustion accelerator manufacturing method.
5. Fossil fuel and accumulator fuel combustion promoter additives for suppressing noxious emissions and clinker and producing complete combustion, characterized by the method of claim 1.

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