JPH0617062A - Combustion aid for petroleum fuel - Google Patents

Abstract

PURPOSE:To obtain a combustion aid for a petroleum fuel which releases oxygen when added to the petroleum fuel and burned, thus effecting a complete combustion of the fuel, and is useful for saving the fuel by causing an active carbon or a material having the same capability as the carbon to absorb and store oxygen. CONSTITUTION:An active carbon 2, or a material having the same capability as the carbon 2, such as a porous coal or charcoal, is put into a closed container 1 and caused to absorb moisture by adding a small amt. of water 3; when the moisture absorption reaches a suitable extent, a specified amt. of oxygen 4 is supplied and absorbed by micropores of the carbon 2 under gentle stirring with a stirrer 5; and a heavy oil 7 in an amt. about 2-5 times as much as the carbon is mixed well with the carbon 2 to form a heavy oil film on the surface of the carbon 2 to prevent the escape of oxygen, giving the objective combustion aid. When a heavy oil fuel contg. about 5wt.% the aid is burned in a boiler, oxygen absorbed by the carbon 2 is released, resulting in a complete combustion of the fuel.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to activated carbon, or a material having the same effect as activated carbon, formed by absorbing and storing oxygen. When burned in addition to a petroleum-based fuel, the absorbed oxygen is released to completely burn the fuel. Therefore, the present invention relates to a petroleum-based fuel combustion improver that contributes to both the saving of fuel and the reduction of exhaust pollution by increasing the combustion temperature and reducing the consumption of fuel and combustion air.

[0002]

2. Description of the Related Art Conventionally, a large number of petroleum-based fuel combustion improvers commercially available are organic or inorganic chemicals dissolved or dispersed in a solvent, and are chemically reacted with a fuel to cut a hydrocarbon chain. Improves fuel fluidity and NO during combustion
The main purpose is to reduce NOX and SOX by chemically reacting with the X source and SOX source.

Therefore, the combustion improver which improves the fluidity of the fuel has the function of lowering the viscosity of the high-viscosity C heavy oil and making it easier to burn, and the one which chemically reacts with the NOX source and the SOX source is in the exhaust gas. Shows the function of reducing NOX and SOX of
In either case, there is a problem that the combustion temperature cannot be increased by completely burning the fuel to obtain a desired combustion temperature with a small amount of fuel and combustion air, and saving fuel and reducing exhaust pollution cannot be achieved.

[0004]

The problem to be solved by the present invention is that a general combustion improver has a poor function of completely burning the fuel, so that a low combustion temperature requires a large amount of fuel in order to obtain a desired temperature. The point is that it consumes combustion air and does not give satisfactory results both in saving fuel and reducing exhaust pollution.

[0005]

The petroleum-based fuel combustion improver according to the present invention solves the problem by a structure in which activated carbon or the same effect material as this absorbs and stores oxygen and releases this oxygen during combustion. It is something to do.

The inventor of the present invention has previously found that the wet activated carbon in the semi-hermetically sealed tank selectively absorbs oxygen in the air according to the material issued by the Japan Society for Inorganic Chemicals Activated Carbon Subcommittee, so that the space in the tank is acidified. We found out that human beings are in a state of lack of access and that safety measures are necessary, and we also know that the adsorption of oxygen by activated carbon wetted by the data in the same document is rapid. It was

In view of the above findings, the present inventor has
Activated carbon that does not interfere with combustion, or the same effect material as it, that is, porous coal, charcoal, or processed products thereof, absorbs and absorbs a large amount of oxygen by utilizing the property of easily absorbing oxygen. The present invention has been completed by paying attention to the fact that if it is stored so that oxygen is not released, it will be able to completely burn a petroleum-based fuel by releasing absorbed oxygen when it is stably accumulated and left for co-combustion with a fuel. Is.

That is, activated carbon, or a material having the same effect as activated carbon, is carbon having innumerable continuous small pores inside, which does not hinder combustion and does not generate harmful substances due to combustion. If the pores are filled by adsorption of oxygen, a combustion improver containing a large amount of oxygen is formed. In order to industrially form this combustion improver, it is necessary to absorb oxygen as quickly as possible. Therefore, this condition is easily achieved by allowing the activated carbon, or its equivalent material, to absorb water.

If the activated carbon that absorbs oxygen, or a material having the same effect as oxygen, is left, the absorbed oxygen will be released. Therefore, it is necessary to store it so that the absorbed oxygen is not released. To preserve this oxygen, when activated carbon or its equivalent material is dispersed and placed in a petroleum fuel, especially heavy oil of high viscosity, an oil film covers the surface of activated carbon or its equivalent material. Since the oxygen is confined by the oxygen absorption, the absorbed oxygen can be stably stored as it is in the activated carbon or the same effect material.

As described above, the combustion improver obtained by absorbing and storing oxygen in activated carbon or the same effect material as activated carbon is suitable as a petroleum fuel by itself or by mixing with other commercially available combustion improver. When used in a quantity, oxygen is released from the activated carbon or the same-effect material as it is burned and contributes to the burning of the fuel to act to completely burn the fuel.

[0011]

The petroleum-based combustion improver of the present invention is made of activated carbon of porous carbon, or a material having the same effect as that of the carbon, which absorbs and stores oxygen, so that the amount of oxygen required is within the range. When the fuel is burned in addition to the petroleum-based fuel, the oxygen absorbed by the activated carbon or the same effect material is released to be used for burning the fuel. Therefore, the fuel burns completely, and the combustion temperature without using the combustion improver is 1000 ° C, whereas the combustion temperature rises to 1100 ° C or higher,
If 1% oxygen is supplied to the fuel in the combustion field at ℃
It was demonstrated that there was a temperature increase of 00 ° C.

As mentioned above, the fact that the fuel is completely combusted by the donation of oxygen to raise the combustion temperature is sufficient because it is sufficient to supply the fuel having the temperature of 1000 ° C. to obtain the combustion temperature of 1100 ° C. In addition, because the amount of combustion air is naturally small, NOX source and SO that cause exhaust pollution
Since the X source is reduced and the generation of carbon monoxide is suppressed by the complete combustion, it also effectively prevents the pollution that pollutes the atmosphere by the exhaust gas.

Further, this combustion improver can be used not only by adding it alone to a petroleum-based fuel, but also by mixing it with other commercially available burner and adding it to the fuel. In addition to the effect of completely burning the fuel by the oxygen released from the combustion improver of the present invention, the fuel flowability of other commercially available combustion improvers and the reducing action of NOX source, SOX source, etc. are added to act synergistically. Therefore, it is possible to further enhance the effect of promoting complete combustion and suppressing the emission of harmful substances.

[0014]

EXAMPLES The present invention will be described below with reference to examples, but the present invention is not limited thereto.

Example 1 A fixed amount of activated carbon 2 was placed in a closed container 1 shown in FIG. 2, and then 50% of the activated carbon 2 was put into the closed container 1 from a water source 3 to cause the activated carbon 2 to absorb moisture, and then to a suitable degree. When a certain amount of oxygen is supplied from the oxygen cylinder 4 when it has absorbed moisture and is slowly stirred by the stirrer 5, the activated carbon 2 absorbs the oxygen into the continuous small holes a as shown in FIG. After that, the unadsorbed oxygen concentration is measured by the oxygen concentration meter 6, and the oxygen concentration absorbed by the activated carbon 2 is calculated. Next, 5 from activated carbon 2 from fuel source 7
When a double amount of heavy oil is added and mixed well, the activated carbon 2 forms a heavy oil film b on the surface thereof as shown in FIG. 1 to prevent oxygen from being emitted and to form an activated carbon burner which absorbs and stores oxygen.

The thus-prepared combustion improver is sealed in the container 1.
When the oxygen concentration in the space inside the container 1 was measured with an oximeter after leaving it in the container for 2 weeks, it was confirmed that the oxygen concentration was the same as that at the time of the first measurement and that the absorbed oxygen was stably stored. confirmed.

The heavy oil in which the combustion improver prepared as described above is dispersed is used as a stock solution. When the stock solution is burned, 5% of fuel oil is added to the fuel heavy oil in a tank in advance, and the mixture is well stirred and supplied to the boiler. And burned. As a result, the activated carbon releases absorbed oxygen and contributes to combustion of the fuel, so that the fuel is completely combusted and the combustion temperature is 1000 ° C. when the combustion improver is not used, but a high temperature of 1100 ° C. is obtained. I was able to.

In this embodiment, the best combustion result is obtained by adjusting the amount of the combustion improver added within the range of 5% to 10% depending on the type of fuel.

Example 2 Heavy oil 5 in which the combustion improver used as the stock solution was dispersed
Parts and 1 part of a commercially available Neos Ba-S, U combustion improver were added to 94 parts of fuel heavy oil, mixed well, and supplied to a boiler for combustion. As a result, the fuel heavy oil is completely combusted by the synergistic effect of donating oxygen released from the activated carbon and the action of reducing the viscosity of the fuel of the commercial combustion improver, and the combustion temperature of 1200 ° C is compared with the combustion temperature of 1000 ° C when not used. A high temperature of ℃ could be obtained.

The mixing ratio of the undiluted solution and the commercial combustion improver in this example was 5 parts: 0.1 depending on the type of fuel.
Parts to 10 parts: Adjust within the range of 2 parts to obtain the best combustion result.

[0021]

As described above, the petroleum-based fuel combustion improver of the present invention is necessary because when added to a petroleum-based fuel and burned, it releases absorbed oxygen and completely burns the fuel to raise the combustion temperature. The combustion temperature to be obtained can be obtained with less fuel than usual, which not only greatly contributes to the saving of fuel, but if the fuel is small, the amount of combustion air naturally decreases, and the NOX source and the SOX source can be reduced together. Moreover, since the generation of carbon monoxide is suppressed by the complete combustion of fuel, harmful substances such as NOX, SOX, and carbon monoxide in exhaust gas are significantly reduced. The synergistic effect of the above can further improve the effect, so that both energy saving and exhaust pollution prevention can be achieved. Moreover, since this burner can be offered to the market at a low price, it can be used as a burner for petroleum-based fuels in the industry. It is those that can make a very large contribution.

[Brief description of drawings]

FIG. 1 is a front view in which a part of a petroleum-based fuel combustion improver according to the present invention is longitudinally cut.

FIG. 2 is a schematic diagram showing a model of an apparatus for producing a petroleum-based fuel combustion improver according to the present invention.

[Explanation of symbols]

 2 Activated carbon a Small hole b Coating

Claims (4)

[Claims] 1. A petroleum-based fuel combustion improver, characterized in that activated carbon, or a material having the same effect as activated carbon, absorbs and stores oxygen and releases the oxygen during combustion. 2. Activated carbon or its equivalent material is 10 to 1
A petroleum-based fuel combustion improver, which is characterized by adding 00% of water to improve the absorption of oxygen. 3. A petroleum-based fuel combustion improver, characterized in that activated carbon having absorbed oxygen, or a material having the same effect as oxygen, is dispersed in a petroleum-based fuel to preserve the absorbed oxygen. 4. A petroleum-based fuel auxiliary combustion agent, wherein the auxiliary combustion agent according to claim 1 is mixed with another auxiliary combustion agent.