TWI707109B - Environmental protection and emission reduction fuel manufacturing method - Google Patents

Abstract

An environmentally friendly and emission-reducing fuel manufacturing method includes the sequential treatment of water and fuel respectively, the sequential treatment includes ore activation, high-pressure impact, shear effect, high-speed injection and ultrasonic treatment; and the sequential treatment of water and After the fuel is mixed and subjected to integrated mechanical treatment, the fuel is completely coated with water to obtain environmentally friendly and emission-reducing fuel. The integrated mechanical treatment includes high-speed shear, high-speed injection, high-pressure homogenization, vortex mixing, and ultrasonic treatment. Water can come from various water sources such as tap water, groundwater or organic wastewater. The volume percentage of water in environmentally friendly emission reduction fuels is 5-45%, and the average particle size of water is 2-8um. The water can be mixed with chemicals to enhance the emission reduction effect before sequencing. The chemicals can contain alcohols, enzymes and urea.

Description

Environmental protection and emission reduction fuel manufacturing method

The present invention relates to an environmentally friendly fuel manufacturing method, in particular to a method that combines various mechanical methods to refine water and fuel and then allows the fuel to completely coat and mix the water into an environmentally friendly emission reduction fuel. It is also possible to first mix emission reduction agents into water and The fuel is refined and blended together to produce environmentally friendly and emission-reducing fuels.

Due to the increasing severity of global warming, many countries have set targets and related supporting measures to reduce the emission of various air pollutants. my country has not stayed out of the situation. The Environmental Protection Agency recently set a boiler air pollutant emission standard, requiring that private industrial boilers must reduce 70% particulate pollutant emissions, 83% sulfur oxide emissions, and 60% nitrogen oxidation by 2020. The emission of natural gas has made manufacturers unable to switch to using natural gas as fuel to scream and cannot meet the government's predetermined emission reduction targets as scheduled. In addition, my country’s natural gas needs to be imported by large vessels from abroad. If a typhoon or other force majeure causes the vessel to be unable to call at the port, there is a risk of interruption of fuel sources; large high-pressure containers are required for centralized storage of natural gas, which also increases public safety risks. From the perspective of decentralization of energy reserves, it is also a fuel with disadvantages. Due to the higher ignition point of heavy oil fuel, it is safer in transportation and storage than natural gas, LPG, gasoline and diesel, and it is not prone to accidents such as a large fire caused by a tanker accident. The cost of heavy oil fuel is also higher than that of natural gas, LPG and Gasoline and diesel are much cheaper, so if we can economically reduce the emissions of heavy oil fuels, it can be a big help for my country, which is mainly small and medium-sized enterprises, to reduce pollution emissions.

Generally, the way for boilers to reduce nitrogen oxide emissions is shown in the third figure. Injecting chemical agent B1, such as an aqueous solution of urea or ammonia, as a reducing agent above the flame of boiler B to react with nitrogen oxides and neutralize the smoke. Nitrogen oxides in the gas are reduced to harmless N ₂ and H ₂ O; however, this method is costly and difficult for ordinary small and medium-sized enterprises to load. Ammonia is also toxic and corrosive, and it is more dangerous to store and use. Need to find another cheaper way to reduce nitrogen oxide emissions. The sulfur oxide is processed by another desulfurization equipment.

In addition to switching to natural gas as fuel, there is also a method of reducing emissions by adding water fuel. Water-added fuel refers to the mixture of fuel oil with water, which can greatly reduce the amount of fuel used and reduce CO ₂ ( Carbon dioxide) is an environmentally friendly fuel. Since complete combustion can be expected, the amount of air used for combustion can also be reduced to a considerable extent. Along with this, the generation of nitrogen oxides or particulate matter (PM) can also be suppressed, which has the effect of environmental protection and emission reduction. The Republic of China Patent Certificate No. I621705 discloses a method and device for producing water-filled fuels, which can produce water-filled fuels that can be stored stably. However, complicated equipment and methods are still required, and the water source needs to be processed into soft water first, which increases costs.

In view of this, the inventors devote themselves to research and design, and hope to provide a method that can easily produce environmentally friendly and emission-reducing fuels, which is the motive of the invention.

The main purpose of the present invention is to provide a method for economically manufacturing environment-friendly and emission-reducing fuel.

Therefore, the environmental protection and emission reduction fuel manufacturing method of the present invention includes sequential processing of water and fuel separately. The sequential processing includes ore activation, high-pressure impact, shearing effect, high-speed injection, and ultrasonic processing; The water is mixed with fuel for integrated mechanical treatment, and the fuel is completely covered with water to obtain environmentally friendly and emission-reducing fuel. The integrated mechanical treatment includes high-speed shear, high-speed injection, and high-pressure Homogenization, vortex mixing and ultrasonic processing. Water can come from various water sources such as tap water, groundwater or organic wastewater. The fuel can be heavy oil, kerosene, diesel and other oil products. The volume percentage of water in the environmentally friendly emission reduction fuel is 5-45%, and the average particle size of water is 2~8um, can make fuel and water not separate. The water can be mixed with the medicament before the sequential treatment. The medicament can contain alcohols, enzymes, urea and other agents that help reduce nitrogen oxides to enhance the effect of reducing nitrogen oxide emissions. The boiler does not need to use equipment spraying chemical reduction agents, and it also reduces the burden on the back-end filtering equipment, and greatly reduces the cost of emission reduction equipment.

Urea is a non-toxic and harmless chemical with no possibility of explosion and no danger at all. Therefore, it is very suitable as a reducing agent for reducing nitrogen oxides. When liquid ammonia or ammonia water is used, it will increase the risk of industrial safety.

Generally, boilers are equipped with an atomizing oil gun to atomize the fuel once, and when the environmentally friendly and emission-reducing fuel is burned, the vaporization point of water (100℃) is lower than that of ordinary fuels. The sequence of water molecules contained inside The fuel is fully gasified and burst, and the fuel is atomized twice into nano-level fine particles to make the combustion more complete. The boiler is not easy to accumulate carbon, which can save fuel by more than 10%, and the chemicals in the water such as urea can also be sufficient Complete reaction with nitrogen oxides in exhaust gas to reduce nitrogen oxide emissions.

In order to further understand the features, characteristics and technical content of the present invention, please refer to the following detailed description of the present invention.

S1: Sequence processing

S1A: Sequence processing

S1B: Medicinal mixing

S2: Integrated mechanical processing

B: boiler

B1: Chemical agents

C: Fuel

C1: Environmental protection and emission reduction fuel

C2: moisture

C3: Pharmacy

The first figure is the flow chart (1) of the present invention.

The second figure is the flow chart (2) of the present invention.

The third figure is a schematic diagram of a conventional boiler emission reduction device.

The fourth figure is a schematic diagram of a boiler using the environmentally friendly emission reduction fuel made by the present invention.

The fifth figure is a schematic diagram of the secondary atomization mechanism of the environmentally friendly emission reduction fuel produced by the present invention.

The sixth figure is the water particle size distribution diagram of the environmentally friendly emission reduction fuel produced by the present invention after being stored for 3 months.

Please refer to the first and second figures. The above-mentioned diagrams illustrate the environmentally friendly and emission-reducing fuel manufacturing method of the present invention, which includes the sequential processing S1 and S1A of water and fuel, wherein the sequential processing S1 and S1A include ore activation, High-pressure impact, shearing effect, high-speed injection, and ultrasonic treatment; and the integrated mechanical treatment S2 is performed by mixing the water and fuel in the sequenced section, so that the water is completely covered by the fuel to obtain environmentally friendly and emission-reducing fuel. Mechanical treatment S2 includes high-speed shearing, high-speed jetting, high-pressure homogenization, vortex mixing and ultrasonic treatment.

The source of water can be various water sources such as tap water, groundwater or organic wastewater, and the water can be subjected to a chemical mixing step S1B and then sequenced. The medicament can include alcohols, enzymes and urea. The medicament can be strengthened after being dissolved in water. The effect of removing nitrogen oxides in combustion exhaust gas.

In the fourth figure, when the present invention is used in boiler B, it directly replaces the fuel input without using additional spraying equipment, which can greatly reduce the cost of building emission reduction equipment. In addition, after using the environmentally friendly and emission-reducing fuel of the present invention, the burden of the filter screen for filtering particulate pollutants at the back end can also be reduced, further reducing the maintenance cost of the filter device.

In the fifth figure, the general boiler is equipped with an atomizing oil gun to atomize fuel C once. The environmentally friendly emission reduction fuel C1 made by the present invention is atomized into the combustion chamber by the nozzle once and then starts to heat up. The internal moisture C2 exceeds 100 When the water vapor pressure is higher than the surface tension of the C1 droplets, the C1 droplets will explode and split into several particles, that is, secondary atomization occurs and the water contained in the inside Molecular sequencing produces full gasification and explosion, and the fuel is secondarily atomized into nano-level fine particles, making the diameter of the environmentally friendly emission reduction fuel C1 droplets smaller, increasing the surface area that can be reacted, promoting more complete combustion, and improving fuel The combustion degree and efficiency of the boiler are not easy to accumulate carbon and reduce the emission of carbon particles. If the environmentally friendly emission reduction fuel C1 with mixed chemical C3 is used, the chemical C3 is also dispersed in the entire combustion chamber during the secondary atomization stage, which can fully react with nitrogen oxides and greatly reduce nitrogen oxide emissions to use urea Take the medicine C3 as an example, the reaction at this time is as follows: (NH ₂ )CO → 2NH ₂ +CO

NH ₂ +NO → N ₂ +H ₂ O

The CO+NO → N ₂ +CO ₂ reaction occurs at about 900~1100°C, which is more efficient than the spraying of chemical agent B1 in the third figure. Under oxygen-deficient conditions, the carbon particles produced by high-temperature cracking in the fuel can react with water vapor generated by the vaporization of water C2, which can also increase combustion efficiency, reduce incomplete combustion particles, and reduce particles in exhaust smoke. Like pollutants, the water gas reaction is shown below.

C+H ₂ O → CO+H ₂

C+H ₂ O → CO ₂ +H ₂

CO+H ₂ O → CO ₂ +H ₂

2H ₂ +O ₂ → 2H ₂ O On the other hand, due to the evaporation of water C2, the temperature field during combustion is balanced, thereby suppressing the formation of nitrogen oxides. Through the above-mentioned secondary atomization and water gas reaction, the environmentally friendly emission reduction fuel C1 can achieve the dual effects of reducing air pollution and saving energy. If organic wastewater is used as the water source, the organic substances contained in the organic wastewater can be burned together when the environmentally friendly emission reduction fuel C1 is burned. Not only can the organic wastewater that need to be treated with extra money be recycled and converted into fuel, but also environmentally friendly emission reduction fuel C1 can be added. The calorific value generated during combustion.

In the sixth figure, you can see the water particle size distribution diagram of the environmentally friendly emission reduction fuel made by the present invention after 3 months of storage. The water source is tap water and no chemicals are added. It can be seen that the average particle size is about Between 2um and 5um, the overall size distribution is approximately between 2um and 8um; it means that the environmentally friendly emission reduction fuel has not been separated from oil and water after 3 months of storage, and the water particle size is still quite small.

Table (a) is a comparison table between the environmental protection and emission reduction fuel made by the present invention and general heavy oil. The water source used in the environmental protection emission reduction fuel in this comparison table is tap water and no chemicals are added; you can see in Table (a) The water content of the environmentally friendly emission reduction fuel sent to the test is 18.5% by volume, and the tested net calorific value is only about 3% less than that of the heavy fuel oil. This means that the environmentally friendly emission reduction fuel requires the same amount of heat generation. The actual amount of fuel is about 84% of general heavy oil ((9771/9440)*(1-0.185)=0.84), which can reduce fuel consumption by 16%. It can be seen that environmentally friendly and emission-reducing fuel can increase combustion efficiency and greatly reduce exhaust gas Carbon particles that burn incompletely.

Table (b) is a comparison table of the emissions of the environmentally friendly emission reduction fuel of the present invention and traditional heavy oil. The environmentally friendly emission reduction fuel in the table is the same as that of Table (a). It can be found that the reduction of nitrogen oxides produced by the environmental protection emission reduction fuel after combustion is approximately 22%. If the aforementioned agents such as alcohols, enzymes and urea are mixed into the environmentally friendly emission reduction fuel, the production of nitrogen oxides NO _X can be further reduced.

The present invention can adjust the water content to achieve the highest combustion efficiency according to the different temperature boilers used in various industries. As shown in Table (c), industries that require high-temperature boilers such as glass fiber manufacturing, glass, ceramics, and cement industries , Metallurgy, mining, asphalt plants and power plants can use environmentally friendly fuels with a moisture content of about 15%; the pharmaceutical industry, petrochemical industry, dyeing and finishing industry, printing and dyeing industry, textile industry, dairy industry, chemical industry whose temperature is slightly lower than the aforementioned industries And the dye industry can use environmentally friendly fuels with a moisture content of about 25%; lower temperature boilers such as food industry, hospitals, hotels, swimming pools, public buildings and general industries can use environmentally friendly fuels with a moisture content of about 35%. The environmentally friendly and emission-reducing fuel produced by the present invention can be used in boilers with various temperature requirements by changing the ratio of water to fuel at will.

However, the above are only the preferred embodiments of the present invention, and should not be used to limit the scope of the present invention. Any changes and modifications that can be obviously made by those who are accustomed to the industry should be regarded as not departing from it. The essence of the present invention.

S1: Sequence processing

S1A: Sequence processing

S2: Integrated mechanical processing

Claims (5)

An environment-friendly and emission-reducing fuel manufacturing method, comprising: mixing water and a medicament to form a syrup, the medicament containing alcohol, enzyme and urea; sequentially processing the syrup and fuel; and putting the syrup in the sequenced treatment After mixing with the fuel for integrated mechanical treatment, the fuel is allowed to completely coat the syrup to obtain environmentally friendly and emission-reducing fuel. The integrated mechanical treatment includes high-speed shearing, high-speed injection, high-pressure homogenization, vortex mixing, and ultrasonic treatment. For example, the environmental protection and emission reduction fuel manufacturing method of item 1 of the scope of patent application, in which the water is tap water, ground water or organic wastewater. For example, the environmental protection and emission reduction fuel manufacturing method in the first item of the scope of patent application, in which water accounts for 5 to 45% of the volume of environmental protection emission reduction fuel. For example, the environmental protection and emission reduction fuel manufacturing method in the scope of patent application, wherein the average particle size of the water contained in the environmental protection emission reduction fuel is 2-8um. For example, the environmental protection and emission reduction fuel manufacturing method of the first item of the scope of patent application, in which the sequential treatment includes ore activation, high-pressure impact, shear effect, high-speed injection and ultrasonic treatment.

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