High-calorific-value, high-flash-point bio-liquid fuel and method for preparing same

Abstract

This invention provides a high-calorific-value, high-flash-point bio-liquid fuel and its preparation method, comprising the following raw materials: bio-based butanol, ethylene glycol, dimethyl carbonate, butanone, cyclohexylamine carbonate, and methyl acetate, in the following mass percentage proportions: bio-based butanol 60-75%, ethylene glycol 5-10%, dimethyl carbonate 15-20%, butanone 0.5-1.0%, cyclohexylamine carbonate 2.0%-6.0%, and methyl acetate 5-10%. The high-calorific-value, high-flash-point bio-liquid fuel and its preparation method provided by this invention have the characteristics of high calorific value, high flash point, high freezing point, stable flame combustion, clean and smokeless operation, and high safety in storage tank transportation and use.

Description

Technical Field

[0001] This invention relates to the field of alcohol-based fuels, and more particularly to a high-calorific-value, high-flash-point bio-liquid fuel and its preparation method. Background Technology

[0002] With rapid economic development, the demand for energy is increasing daily. However, due to resource scarcity and persistently high prices, energy shortages have become a long-term pressure restricting global economic development. Furthermore, petroleum, a petrochemical resource, emits large amounts of harmful substances, causing air pollution and impacting the ecosystem and human health. Moreover, petroleum resources are non-renewable. To mitigate environmental pollution, promote the renewable and cyclical use of resources, and benefit future generations, countries have begun to promote new environmentally friendly and economical alternative fuels. Among these, alcohol-based fuels are considered a new energy source due to their environmentally friendly characteristics.

[0003] Alcohol-based fuels are generally liquid fuels primarily composed of methanol, mixed with other polyols and hydrocarbons. They are also a form of biomass energy, and like nuclear, solar, wind, and hydropower, are environmentally friendly and clean energy sources that governments worldwide are actively promoting. Compared to coal and diesel, alcohol-based fuels burn most completely, have the highest heat conversion efficiency, and emit primarily water and carbon dioxide, making them the cleanest, most environmentally friendly, and most promising fuels for the future. Current technologies for alcohol-based liquid fuels, primarily composed of methanol and ethanol with other fusel oils, suffer from drawbacks such as low calorific value, unstable combustion, low flash point, and flammability, which can lead to safety accidents and limit their widespread application. Therefore, it is necessary to improve existing low-calorific-value, low-flash-point alcohol-based fuels.

[0004] Therefore, it is necessary to provide a high-calorific-value, high-flash-point biofuel and its preparation method to solve the above-mentioned technical problems. Summary of the Invention

[0005] This invention proposes a high-calorific-value, high-flash-point bio-liquid fuel and its preparation method, which features high calorific value, high flash point, high freezing point, stable flame combustion, clean and smokeless operation, and high safety in storage tank transportation and use. It solves the problems of low calorific value, low flash point, flammability, unstable flame combustion, smoke, and high risk of safety accidents associated with alcohol-based fuels in the prior art.

[0006] To achieve the above objectives, the present invention provides a high-calorific-value, high-flash-point bio-liquid fuel comprising the following raw materials: bio-based butanol, ethylene glycol, dimethyl carbonate, butanone, cyclohexylamine carbonate, and methyl acetate, in the following mass percentage proportions: bio-based butanol 60-75%, ethylene glycol 5-10%, dimethyl carbonate 15-20%, butanone 0.5-1.0%, cyclohexylamine carbonate 2.0%-6.0%, and methyl acetate 5-10%.

[0007] A method for preparing a high-calorific-value, high-flash-point biofuel includes the following steps:

[0008] S1: The raw materials are formulated according to the following mass percentages: bio-based butanol 60-75%, ethylene glycol 5-10%, dimethyl carbonate 15-20%, methyl ethyl ketone 0.5-1.0%, cyclohexylamine carbonate 2.0%-6.0%, and methyl acetate 5-10%.

[0009] S2: Mix all ingredients thoroughly, place them in a high-speed mixer, and stir at 50°C for 20 minutes.

[0010] S3: High-calorific-value, high-flash-point biofuel can be obtained by placing it in a magnetic field with a magnetic field strength of 0.36T for 33 minutes.

[0011] Preferably, in step S1, the raw materials are prepared in the following mass percentages: 75% bio-based butanol, 5% ethylene glycol, 15% dimethyl carbonate, 0.5% butanone, 2.0% cyclohexylamine carbonate, and 5% methyl acetate. In step S2, all raw materials are mixed evenly and placed in a high-speed mixer, and stirred at high speed for 20 minutes at 50°C. In step S3, the mixture is placed in a magnetic field with a magnetic field strength of 0.36T for 33 minutes to obtain a high-calorific-value, high-flash-point bio-liquid fuel.

[0012] Preferably, in step S1, the raw materials are prepared in the following mass percentages: 60% bio-based butanol, 10% ethanol, 20% dimethyl carbonate, 1.0% butanone, 6.0% cyclohexylamine carbonate, and 10% methyl acetate. In step S2, all raw materials are mixed evenly and placed in a high-speed mixer, and stirred at high speed for 20 minutes at 50°C. In step S3, the mixture is placed in a magnetic field with a magnetic field strength of 0.36T for 33 minutes to obtain a high-calorific-value, high-flash-point bio-liquid fuel.

[0013] Preferably, in step S1, the raw materials are prepared in the following mass percentages: 65% bio-based butanol, 10% ethylene glycol, 15% dimethyl carbonate, 0.8% methyl ethyl ketone, 7.0% cyclohexylamine carbonate, and 10% methyl acetate. In step S2, all raw materials are mixed evenly and placed in a high-speed mixer, and stirred at high speed for 20 minutes at 50°C. In step S3, the mixture is placed in a magnetic field with a magnetic field strength of 0.36T for 33 minutes to obtain a high-calorific-value, high-flash-point bio-liquid fuel.

[0014] Compared with related technologies, the high calorific value and high flash point biofuel and its preparation method provided by this invention have the following beneficial effects:

[0015] The high-calorific-value, high-flash-point bio-liquid fuel proposed in this invention has the characteristics of high calorific value, high flash point, high freezing point, stable flame combustion, clean and smokeless operation, and high safety in storage tank transportation and use. Detailed Implementation

[0016] The present invention will be further described below with reference to the embodiments.

[0017] The high-calorific-value, high-flash-point bio-liquid fuel provided by this invention comprises the following raw materials: bio-based butanol, ethylene glycol, dimethyl carbonate, butanone, cyclohexylamine carbonate, and methyl acetate, in the following mass percentage proportions: bio-based butanol 60-75%, ethylene glycol 5-10%, dimethyl carbonate 15-20%, butanone 0.5-1.0%, cyclohexylamine carbonate 2.0%-6.0%, and methyl acetate 5-10%.

[0018] A method for preparing a high-calorific-value, high-flash-point biofuel includes the following steps:

[0019] S1: The raw materials are formulated according to the following mass percentages: bio-based butanol 60-75%, ethylene glycol 5-10%, dimethyl carbonate 15-20%, methyl ethyl ketone 0.5-1.0%, cyclohexylamine carbonate 2.0%-6.0%, and methyl acetate 5-10%.

[0020] S2: Mix all ingredients thoroughly, place them in a high-speed mixer, and stir at 50°C for 20 minutes.

[0021] S3: High-calorific-value, high-flash-point biofuel can be obtained by placing it in a magnetic field with a magnetic field strength of 0.36T for 33 minutes;

[0022] Increasing the proportion of ethylene glycol and decreasing the proportion of dimethyl carbonate results in higher flash points and freezing points for biofuels.

[0023] Bio-based butanol is considered a promising new type of biofuel, with a higher calorific value, approximately 83% that of gasoline.

[0024] Dimethyl carbonate has good biodegradability and low toxicity, and is considered a green energy material;

[0025] Methyl acetate can effectively improve the combustion stability of fuels and reduce fluctuations and flameout during combustion.

[0026] Butyl ketone (MEK) helps to better dissolve and disperse other components in fuel, improving fuel uniformity and stability.

[0027] Second Embodiment

[0028] In step S1, the raw materials are prepared according to the following mass percentages: 75% bio-based butanol, 5% ethylene glycol, 15% dimethyl carbonate, 0.5% methyl ethyl ketone, 2.0% cyclohexylamine carbonate, and 5% methyl acetate. In step S2, all raw materials are mixed evenly and placed in a high-speed mixer, and stirred at high speed for 20 minutes at 50°C. In step S3, the mixture is placed in a magnetic field with a magnetic field strength of 0.36T for 33 minutes to obtain a high-calorific-value, high-flash-point bio-liquid fuel.

[0029] Tests showed that the density (20℃) was ≤0.86, ignition temperature was >390℃, total sulfur content was <0.06%, cold filter plugging point was -30℃, lower heating value was 49000kJ / kg, and kinematic viscosity (20℃) was 2.6mm. 2 / s.

[0030] Third Embodiment

[0031] In step S1, the raw materials are prepared according to the following mass percentages: 60% bio-based butanol, 10% ethanol, 20% dimethyl carbonate, 1.0% butanone, 6.0% cyclohexylamine carbonate, and 10% methyl acetate. In step S2, all raw materials are mixed evenly and placed in a high-speed mixer, and stirred at high speed for 20 minutes at 50°C. In step S3, the mixture is placed in a magnetic field with a magnetic field strength of 0.36T for 33 minutes to obtain a high-calorific-value, high-flash-point bio-liquid fuel.

[0032] Tests showed that the density (20℃) was ≤0.83, ignition temperature was >330℃, total sulfur content was <0.04%, cold filter plugging point was -28℃, lower heating value was 43000kJ / kg, and kinematic viscosity (20℃) was 2.14mm. 2 / s.

[0033] Fourth embodiment

[0034] In step S1, the raw materials are prepared according to the following mass percentages: 65% bio-based butanol, 10% ethylene glycol, 15% dimethyl carbonate, 0.8% methyl ethyl ketone, 7.0% cyclohexylamine carbonate, and 10% methyl acetate. In step S2, all raw materials are mixed evenly and placed in a high-speed mixer, and stirred at high speed for 20 minutes at 50°C. In step S3, the mixture is placed in a magnetic field with a magnetic field strength of 0.36T for 33 minutes to obtain a high-calorific-value, high-flash-point bio-liquid fuel.

[0035] Tests showed that the density (20℃) was ≤0.87, ignition temperature was >360℃, total sulfur content was <0.05%, cold filter plugging point was -29℃, lower heating value was 46000kJ / kg, and kinematic viscosity (20℃) was 2.36 mm. 2 / s.

[0036] Compared with related technologies, the high calorific value and high flash point biofuel and its preparation method provided by this invention have the following beneficial effects:

[0037] The high-calorific-value, high-flash-point bio-liquid fuel proposed in this invention has the characteristics of high calorific value, high flash point, high freezing point, stable flame combustion, clean and smokeless operation, and high safety in storage tank transportation and use.

[0038] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A high-calorific-value, high-flash-point biofuel, characterized in that, The product contains the following raw materials: bio-based butanol, ethylene glycol, dimethyl carbonate, butanone, cyclohexylamine carbonate, and methyl acetate, in the following mass percentage proportions: bio-based butanol 60-75%, ethylene glycol 5-10%, dimethyl carbonate 15-20%, butanone 0.5-1.0%, cyclohexylamine carbonate 2.0%-6.0%, and methyl acetate 5-10%.

2. A method for preparing a high-calorific-value, high-flash-point biofuel, characterized in that, Includes the following steps: S1: The raw materials are formulated according to the following mass percentages: bio-based butanol 60-75%, ethylene glycol 5-10%, dimethyl carbonate 15-20%, methyl ethyl ketone 0.5-1.0%, cyclohexylamine carbonate 2.0%-6.0%, and methyl acetate 5-10%. S2: Mix all ingredients thoroughly, place them in a high-speed mixer, and stir at 50°C for 20 minutes. S3: High-calorific-value, high-flash-point biofuel can be obtained by placing it in a magnetic field with a magnetic field strength of 0.36T for 33 minutes.

3. The high-calorific-value, high-flash-point biofuel and its preparation method according to claim 2, characterized in that, In step S1, the raw materials are prepared according to the following mass percentages: 75% bio-based butanol, 5% ethylene glycol, 15% dimethyl carbonate, 0.5% methyl ethyl ketone, 2.0% cyclohexylamine carbonate, and 5% methyl acetate. In step S2, all raw materials are mixed evenly and placed in a high-speed mixer, and stirred at high speed for 20 minutes at 50°C. In step S3, the mixture is placed in a magnetic field with a magnetic field strength of 0.36T for 33 minutes to obtain a high-calorific-value, high-flash-point bio-liquid fuel.

4. The high-calorific-value, high-flash-point biofuel and its preparation method according to claim 2, characterized in that, In step S1, the raw materials are prepared in the following mass percentages: 60% bio-based butanol, 10% ethanol, 20% dimethyl carbonate, 1.0% methyl ethyl ketone, 6.0% cyclohexylamine carbonate, and 10% methyl acetate. In step S2, all raw materials are mixed evenly and placed in a high-speed mixer, and stirred at high speed for 20 minutes at 50°C. In step S3, the mixture is placed in a magnetic field with a magnetic field strength of 0.36T for 33 minutes to obtain a high-calorific-value, high-flash-point bio-liquid fuel.

5. The high-calorific-value, high-flash-point biofuel and its preparation method according to claim 2, characterized in that, In step S1, the raw materials are prepared according to the following mass percentages: 65% bio-based butanol, 10% ethylene glycol, 15% dimethyl carbonate, 0.8% methyl ethyl ketone, 7.0% cyclohexylamine carbonate, and 10% methyl acetate. In step S2, all raw materials are mixed evenly and placed in a high-speed mixer, and stirred at high speed for 20 minutes at 50°C. In step S3, the mixture is placed in a magnetic field with a magnetic field strength of 0.36T for 33 minutes to obtain a high-calorific-value, high-flash-point bio-liquid fuel.