A new alcohol-free methyl ester heat source and a preparation process thereof

Abstract

The present application belongs to the technical field of new energy waste resource recycling, especially a new type of alcohol-free methyl ester heat source and its preparation process. The present application takes kitchen waste oil as the core raw material, matches functional additives, adopts the independently developed molecular reconstruction-catalytic stabilization compounding technology and clean production process, and prepares a new type of composite fuel oil. The fuel oil strictly controls the physicochemical indexes, has the core advantages of high heat value, low emission, strong storage stability and wide equipment adaptability. The raw material of the present application is mainly kitchen waste oil, which has high resource recycling rate and can directly replace traditional diesel oil, heavy oil, residual oil, liquefied gas, pulverized coal and other fuels. The present application does not need to modify the existing combustion, power and heating equipment, and is widely applicable to scenes such as boiler combustion, kitchen fuel, ship power, industrial cutting, power generation, heating and heating, etc. The present application has the advantages of environmental protection compliance and cost advantage, effectively solves the industry pain points such as high pollution, high energy consumption, resource depletion and limited adaptability of traditional fossil fuels.

Description

Technical Field

[0001] This invention belongs to the field of new energy waste resource recycling technology, specifically involving a novel alcohol-free methyl ester heat source and its preparation process. Background Technology

[0002] Currently, traditional fossil fuels such as methanol, diesel, heavy oil, residual oil, liquefied petroleum gas, and pulverized coal are still widely used in energy sectors such as industrial combustion, marine power, residential heating, and kitchen fuel.

[0003] Traditional fuel technology is mature and widely used, but it has many inherent drawbacks:

[0004] First, the pollution emissions are high, with excessive levels of harmful substances such as sulfur and ash. After combustion, it easily produces pollutants such as sulfur dioxide, dust, and particulate matter, making it difficult to meet stringent environmental emission standards.

[0005] Second, the resources are non-renewable. Relying on fossil resources, the reserves are limited and the costs are rising year by year, resulting in poor resource sustainability.

[0006] Third, the overall performance is significantly lacking. Some traditional fuels have low calorific value, incomplete combustion, and high energy consumption. In addition, some fuels are only compatible with a limited range of equipment and have poor versatility.

[0007] Currently available fuels suffer from problems such as limited raw materials, poor stability, insufficient calorific value, easy stratification during storage, and easy solidification at low temperatures. Moreover, most products contain alcohols, which are flammable and explosive hazardous chemicals. Furthermore, they require specialized equipment for production and cannot directly replace traditional fossil fuels. The equipment modification costs are high, and promotion is difficult. At the same time, existing biofuel preparation processes often lack precise molecular control technology, resulting in low raw material utilization and poor batch stability, making it difficult to achieve large-scale industrial application. Summary of the Invention

[0008] To address the problems mentioned in the background section, this invention provides a novel alcohol-free methyl ester heat source and its preparation process, which has the advantages of no safety hazards and no emissions of waste gas, wastewater, or solid waste.

[0009] To achieve the above objectives, the present invention provides the following technical solution: a novel alcohol-free methyl ester heat source, comprising a main raw material and functional compound additives, wherein the main raw material accounts for 90% and the functional compound additives account for 10%, wherein the functional compound additives include a combustion improver, a catalytic stabilizer, an anti-stratification agent and a low-temperature modifier.

[0010] As a preferred novel alcohol-free methyl ester heat source of the present invention, the novel heat source has an oil calorific value ≥42MJ / kg, a sulfur content ≤0.05%, and an ash content ≤0.1%.

[0011] As a preferred novel alcohol-free methyl ester heat source of the present invention, the novel heat source can directly replace traditional diesel, heavy oil, residual oil, liquefied petroleum gas and pulverized coal, without the need to modify existing combustion, power and heating equipment, and is suitable for boiler combustion, kitchen fuel, marine power, industrial forging, power generation and heating scenarios.

[0012] As a preferred novel alcohol-free methyl ester heat source of the present invention, the functional compound additive has the following mass percentages: 3%-4% combustion improver, 3%-4% catalytic stabilizer, 2% anti-stratification agent, and 1% low-temperature modifier.

[0013] A preparation process for a novel alcohol-free methyl ester heat source, applicable to the aforementioned novel alcohol-free methyl ester heat source, includes the following steps:

[0014] Step 1: Raw material pretreatment;

[0015] Step Two: Molecular Reconstruction Reaction: The two pretreated raw materials are mixed in a certain proportion and added to a reaction vessel. Under temperature-controlled atmospheric or low-pressure conditions, a special catalyst is added to carry out a molecular reconstruction reaction to optimize the molecular structure of the oil.

[0016] Step 3: Catalytic stabilization of the compound;

[0017] Step 4: Temperature-controlled maturation;

[0018] Step 5: Filtering and filling.

[0019] In the preferred preparation process of the novel alcohol-free methyl ester heat source of the present invention, step one requires filtering, dehydrating, and refining the kitchen waste oil to remove impurities and moisture.

[0020] In the preferred preparation process of the novel alcohol-free methyl ester heat source of the present invention, in step three, functional compound additives need to be added stepwise in the reaction vessel, and homogenized compounding is completed by uniform stirring to improve the stability and combustion performance of the fuel system.

[0021] In the preferred preparation process of the novel alcohol-free methyl ester heat source of the present invention, step four requires that the oil be kept at a constant temperature and allowed to mature after compounding in order to eliminate the internal stress of the system.

[0022] In the preferred preparation process of the novel alcohol-free methyl ester heat source of the present invention, step five requires fine filtration to remove trace impurities, and the finished novel heat source is obtained after passing the test.

[0023] In a preferred preparation process of the novel alcohol-free methyl ester heat source of the present invention, the reaction temperature for molecular reconstruction in step two is 40-60℃ and the reaction time is 1.5-2.5h.

[0024] Compared with the prior art, the beneficial effects of the present invention are:

[0025] 1. Significant environmental advantages: Ultra-low sulfur and ultra-low ash content significantly reduce combustion pollutant emissions, ensuring strong environmental compliance and adaptability to stringent environmental control requirements in various regions.

[0026] 2. Excellent energy performance: The high calorific value ensures efficient combustion, high energy utilization rate, lower energy consumption cost than traditional fossil fuels, and outstanding energy saving effect.

[0027] 3. Low application cost: No need to modify existing equipment, it can be directly replaced, reducing equipment modification and maintenance costs; the raw material is mainly waste cooking oil, the production cost is controllable, and the cost performance is extremely high.

[0028] 4. Wide range of application scenarios: It can cover all industrial and civil scenarios such as boiler combustion, kitchen fuel, marine power, power generation, heating, and heating, and its versatility far exceeds that of existing alternative fuels.

[0029] 5. Sustainable Resources: Relying on the continuous generation of kitchen waste oil, waste is turned into treasure, realizing resource recycling, getting rid of dependence on fossil resources, and being low-carbon, green and highly sustainable.

[0030] 6. Strong product stability: Through molecular reconstruction-catalytic stabilization technology, the industry problems of easy stratification and easy deterioration of traditional compound fuels are solved, resulting in long storage period and stable performance.

[0031] 7. The alcohol-free and alkane-free formulation technology makes this product non-flammable and non-explosive, posing no safety hazards. Attached Figure Description

[0032] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0033] Figure 1 This is a process flow diagram of Embodiment 1 of the present invention;

[0034] Figure 2 Here is the raw material ratio table for Embodiment 2 of the present invention;

[0035] Figure 3 This is the raw material ratio table for Embodiment 3 of the present invention;

[0036] Figure 4 This is the raw material ratio table for Embodiment 4 of the present invention. Detailed Implementation

[0037] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0038] Example 1

[0039] like Figure 1 As shown: A novel alcohol-free methyl ester heat source includes a main raw material and functional compound additives. The main raw material accounts for 90% and the functional compound additives account for 10%. The functional compound additives include combustion improvers, catalytic stabilizers, anti-stratification agents and low-temperature modifiers.

[0040] In an optional embodiment, the novel heat source has an oil calorific value ≥42MJ / kg, a sulfur content ≤0.05%, and an ash content ≤0.1%.

[0041] In one optional embodiment, the novel heat source can directly replace traditional diesel, heavy oil, residual oil, liquefied petroleum gas, and pulverized coal without requiring modification of existing combustion, power, and heating equipment. It is suitable for boiler combustion, kitchen fuel, marine power, industrial forging, power generation, and heating scenarios.

[0042] In an optional embodiment, the mass percentages of each component of the functional compound additive are: 3%-4% combustion improver, 3%-4% catalytic stabilizer, 2% anti-stratification agent, and 1% low-temperature modifier.

[0043] A preparation process for a novel alcohol-free methyl ester heat source, applicable to a novel alcohol-free methyl ester heat source, includes the following steps:

[0044] Step 1: Raw material pretreatment;

[0045] Step Two: Molecular Reconstruction Reaction: The two pretreated raw materials are mixed in a certain proportion and added to a reaction vessel. Under temperature-controlled atmospheric or low-pressure conditions, a special catalyst is added to carry out a molecular reconstruction reaction to optimize the molecular structure of the oil.

[0046] Step 3: Catalytic stabilization of the compound;

[0047] Step 4: Temperature-controlled maturation;

[0048] Step 5: Filtering and filling.

[0049] In an optional embodiment, step one requires filtering, dehydrating, and refining the kitchen waste oil to remove impurities and moisture.

[0050] In an optional embodiment, step three requires adding functional compound additives in stages to the reactor, and stirring at a uniform speed to complete homogenization and compounding, thereby improving the stability and combustion performance of the fuel system.

[0051] In an optional embodiment, step four requires the oil to be kept at a constant temperature and allowed to mature after compounding in order to eliminate internal stress in the system.

[0052] In an optional embodiment, step five requires fine filtration to remove trace impurities, and the finished novel heat source is obtained after passing the test.

[0053] In an optional embodiment, the reaction temperature for molecular reconstruction in step two is 40-60°C, and the reaction time is 1.5-2.5 h.

[0054] Example 2

[0055] like Figure 2 As shown: Based on Example 1, improvements were made to produce a composite fuel oil specifically for industrial boilers;

[0056] The raw material ratio is: 90% waste cooking oil and 10% functional compound additives;

[0057] The functional compound additives comprise 10% of the following components: 4% combustion improver, 3% catalytic stabilizer, 2% anti-stratification agent, and 1% low-temperature modifier.

[0058] The preparation process involves raw material purification and dehydration → molecular reconstruction reaction (temperature 40-60℃, atmospheric pressure, reaction time 2h) → catalytic compounding and stirring (uniform stirring for 90min) → constant temperature maturation for 24h → fine filtration → finished product filling.

[0059] The performance test results are as follows:

[0060] With a calorific value of 42.8 MJ / kg, a sulfur content of 0.042%, and an ash content of 0.08%, it exhibits no stratification or sedimentation after 90 days of storage at room temperature. It can directly replace heavy oil for industrial boiler combustion, producing no black smoke and meeting emission standards.

[0061] Example 3

[0062] like Figure 3 As shown: Based on Example 1, improvements were made to produce a composite fuel oil specifically for marine power.

[0063] The raw material ratio is: 90% waste cooking oil and 10% functional compound additives;

[0064] The functional compound additives comprise 10% of the following components: 3% combustion improver, 4% catalytic stabilizer, 2% anti-stratification agent, and 1% low-temperature modifier.

[0065] The preparation process involves conventional raw material refining → mild molecular reconstruction reaction (temperature 40-60℃, atmospheric pressure, reaction time 1.5h) → room temperature catalytic compounding → aging for 20h → filtration and filling.

[0066] The performance test results are as follows:

[0067] With a calorific value of 42.1 MJ / kg, a sulfur content of 0.045%, and an ash content of 0.09%, it burns completely, without odor or residue, and is suitable for marine heating equipment and kitchen combustion equipment. It is an excellent substitute for liquefied petroleum gas and pulverized coal.

[0068] Example 4

[0069] like Figure 4 As shown: Based on Example 1, improvements were made to produce fuel oil specifically for residential heating and kitchen use;

[0070] The raw material ratio is: 90% waste cooking oil and 10% functional compound additives;

[0071] The functional compound additives comprise 10% of the following components: 3% combustion improver, 4% catalytic stabilizer, 2% anti-stratification agent, and 1% low-temperature modifier.

[0072] The preparation process involves conventional raw material refining → mild molecular reconstruction reaction (temperature 40-60℃, atmospheric pressure, reaction time 1.5h) → room temperature catalytic compounding → aging for 20h → filtration and filling.

[0073] The performance test results are as follows:

[0074] With a calorific value of 42.1 MJ / kg, a sulfur content of 0.045%, and an ash content of 0.09%, it burns completely, without odor or residue, and is suitable for residential heating equipment and kitchen combustion equipment. It is an excellent substitute for liquefied petroleum gas and pulverized coal.

[0075] Example 5

[0076] Commercially available bio-composite fuels were selected, and after testing, their calorific value was only 36-39 MJ / kg, sulfur content ≥0.1%, ash content ≥0.15%, and they were prone to stratification and precipitation after 30 days of storage at room temperature. They could not be directly adapted to ships and large industrial boiler equipment and required equipment modification before they could be used. Their overall performance was far inferior to the product of this invention.

[0077] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A novel alcohol-free methyl ester-free heat source, characterized in that: It includes main raw materials and functional compound additives, wherein the main raw materials account for 90% and the functional compound additives account for 10%, and the functional compound additives include combustion improvers, catalytic stabilizers, anti-stratification agents and low-temperature modifiers.

2. The novel alcohol-free methyl ester-free heat source according to claim 1, characterized in that: The novel heat source has an oil calorific value ≥42MJ / kg, a sulfur content ≤0.05%, and an ash content ≤0.1%.

3. The novel alcohol-free methyl ester-free heat source according to claim 1, characterized in that: The new heat source can directly replace traditional diesel, heavy oil, residual oil, liquefied petroleum gas, and pulverized coal without requiring modification of existing combustion, power, and heating equipment. It is suitable for boiler combustion, kitchen fuel, marine power, industrial forging, power generation, and heating scenarios.

4. The novel alcohol-free methyl ester-free heat source according to claim 1, characterized in that: The functional compound additive has the following mass percentages: combustion improver 3%-4%, catalytic stabilizer 3%-4%, anti-stratification agent 2%, and low-temperature modifier 1%.

5. A preparation process for a novel alcohol-free methyl ester heat source, applicable to the novel alcohol-free methyl ester heat source described in any one of claims 1-4 above, characterized in that, Includes the following steps: Step 1: Raw material pretreatment; Step Two: Molecular Reconstruction Reaction: The two pretreated raw materials are mixed in a certain proportion and added to a reaction vessel. Under temperature-controlled atmospheric or low-pressure conditions, a special catalyst is added to carry out a molecular reconstruction reaction to optimize the molecular structure of the oil. Step 3: Catalytic stabilization of the compound; Step 4: Temperature-controlled maturation; Step 5: Filtering and filling.

6. The preparation process of a novel alcohol-free methyl ester heat source according to claim 5, characterized in that: In step one, the waste cooking oil needs to be filtered, dehydrated, and refined to remove impurities and moisture.

7. The preparation process of a novel alcohol-free methyl ester heat source according to claim 5, characterized in that: In step three, functional compound additives need to be added to the reactor in stages, and the mixture is stirred at a constant speed to complete the homogenization and compounding, thereby improving the stability and combustion performance of the fuel system.

8. The preparation process of a novel alcohol-free methyl ester heat source according to claim 5, characterized in that: In step four, the oil needs to be kept at a constant temperature and allowed to mature after compounding in order to eliminate the internal stress of the system.

9. The preparation process of a novel alcohol-free methyl ester heat source according to claim 5, characterized in that: In step five, fine filtration is required to remove trace impurities, and the finished new heat source is obtained after passing the test.

10. The preparation process of a novel alcohol-free methyl ester heat source according to claim 5, characterized in that: The reaction temperature for molecular reconstruction in step two is 40-60℃, and the reaction time is 1.5-2.5h.

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