Biological blended fuel

Through the specific composition and process of bio-blending fuel, the problems of low fuel calorific value and unstable flame are solved, and efficient and safe combustion effect is achieved.

CN120648508APending Publication Date: 2025-09-16CHANGDE KUNYI NEW ENERGY TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202511089640.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-08-05
Publication Date
2025-09-16

AI Technical Summary

Technical Problem

Existing fuels have low calorific value and poor flame stability, making it difficult to meet the energy needs of high-energy-consuming equipment and posing safety risks.

Method used

Bio-blended fuel is used, including a variety of alkanes and ester components in specific proportions, which are mixed through a specific process to form a fuel with high calorific value and stable flame.

Benefits of technology

It improves combustion efficiency, avoids flame flickering, improves energy utilization efficiency and reduces safety risks.

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Abstract

The invention belongs to the technical field of energy, and in particular relates to a biological blended fuel which comprises the following components: methyl palmitate, octadecane-9. 12-dienoic acid methyl ester, cis-11-octadecenic acid methyl ester, 2-methyl undecane, 3-methyl undecane, 3, 6-dimethyl decane, 3.7-dimethyl decane, 3, 8-dimethyl-undecane, 3, 8-dimethyl decane, 3, 6-dimethyl decane, 3, 6-dimethyl decane, 3, 6-dimethyl decane, 3, 6-dimethyl decane, 3, 6-dimethyl decane, 3, 6-dimethyl decane, 3, 6-dimethyl decane, 3, 6-dimethyl decane, 3, 6-dimethyl decane, 3, 6-dimethyl decane, 3, 6-dimethyl decane, 3, the preparation method comprises the following steps: adding 1, 10-methyl eicosane, 2, 5-dimethyl dodecane, 5-methyl tridecane, 4-methyl-tridecane, 2-bromododecane, 3-methyl-5-propyl nonane, 3-methyl-tetradecane, n-nonane, 6-methyl undecane, 2, 5-dimethyl decane, C16H34, 5-methyl-tetradecane, 7-methyl heptadecane, 4-methyl tetradecane, 3-methyl-tetradecane and 2.5-dimethyl tridecane into a reaction kettle; methyl tetradecane, n-pentadecane and tetradecane; according to the invention, 10-methyleicosane and 5-methyltetradecane are used for providing a high volume calorific value, and the flame temperature is improved compared with that of common biodiesel.
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Description

Technical Field

[0001] The invention belongs to the field of energy technology, and specifically refers to bio-blended fuel. Background Art

[0002] Fuel is a combustible substance that releases a large amount of heat energy through violent redox reactions with oxidants. It can be widely used in many fields such as industrial production, transportation, and residents' lives, providing indispensable energy support for the operation of human society.

[0003] However, the traditional fuels currently in widespread use have numerous shortcomings. For one thing, many have low calorific values. For example, common biomass fuels, despite their widespread availability and renewable nature, are limited by the raw material's inherent properties and processing techniques. The energy released per unit mass of fuel combustion is limited, making it difficult to meet the energy efficiency demands of energy-intensive equipment or processes. This results in low energy efficiency and increased energy costs.

[0004] On the other hand, some fuels have poor flame stability during combustion, prone to flame flicker. Flame flicker not only causes uneven combustion, hindering the effective transfer and utilization of heat, and reducing combustion efficiency, but can also lead to a series of safety issues. For example, in industrial furnaces, flame flicker can cause uneven temperature distribution within the furnace, affecting product quality. In household stoves, flame flicker increases the risk of harmful gases such as carbon monoxide, threatening the health and safety of users. Summary of the Invention

[0005] In order to solve the above problems, the present invention proposes bio-blended fuel and its application.

[0006] The technical solution adopted by the present invention is as follows: The present invention provides a bio-blending fuel, comprising the following components: 6-7% methyl palmitate, 0.38-0.78% methyl octadecyl-9,12-dienoate, 0.74-1.14% methyl cis-11-octadecenoate, 0.14-0.54% 2-methylundecane, 0.12-0.52% 3-methylundecane, 0.36-0.76% 3,6-dimethyldecane, 0.33-0.73% 3,7-dimethyldecane, 0.56-0.96% 3,8-dimethyl-undecane, 0. 57~0.97%, 10-methyleicosane 7.8~8.2%, 2,5-dimethyldodecane 3.25~3.75%, 5-methyltridecane 3.1~3.5%, 4-methyl-tridecane 3.59~3.99%, 2-bromododecane 6.96~7.36%, 3-methyl-5-propylnonane 0.95~1.35%, 3-methyl-tetradecane 1.98~2.38%, n-nonadecane 18.25~18.65%, 6-methylundecane 1.69~2.09%, 2,5-dimethyldecane 3.87~4.27%, C16H34 2.56~2.96%, 5-methyl-tetradecane 5.5~5.9%, 7-methylheptadecane 1.7~2.1%, 4-methyltetradecane 3.74~4.14%, 3-methyl-tetradecane 5.91~6.31%, 2.5-dimethyltridecane 5.14~5.54%, methyltetradecane 3~3.4%, n-pentadecane 2.8~3.2%, tetradecane 2.9~3.3%.

[0007] Furthermore, the following components are included: 6.81% methyl palmitate, 0.58% methyl octadecane-9,12-dienoate, 0.94% methyl cis-11-octadecenoate, 0.34% 2-methylundecane, 0.32% 3-methylundecane, 0.56% 3,6-dimethyldecane, 0.53% 3.7-dimethyldecane, 0.76% 3,8-dimethyl-undecane, 0.77% 3,8-dimethyldecane, 8% 10-methyleicosane, 3.35% 2,5-dimethyldodecane, 3.30% 5-methyltridecane, 3.79% 4-methyl-tridecane, 7.16% 2-bromododecane, 1.15% 3-methyl-5-propylnonane, 2.18% 3-methyl-tetradecane, 18.45% n-nonadecane, 1.89% 6-methylundecane, 4.07% 2,5-dimethyldecane, C16H34 2.76%, 5-methyl-tetradecane 5.7%, 7-methylheptadecane 1.9%, 4-methyltetradecane 3.94%, 3-methyl-tetradecane 6.11%, 2.5-dimethyltridecane 5.34%, methyltetradecane 3.2%, n-pentadecane 3%, tetradecane 3.1%.

[0008] This solution also discloses a method for preparing bio-blended fuel, which mainly includes the following steps: Step 1: n-nonadecane, n-pentadecane, and tetradecane were mixed in a stainless steel reactor at 65°C, and nitrogen was introduced into the reactor, and the mixture was pre-stirred for 20 min at a stirrer speed of 500 rpm. Step 2: 10-methyleicosane, 2,5-dimethyldodecane, 5-methyltridecane, 4-methyltridecane, 3-methyl-5-propylnonane, 3-methyltetradecane, 5-methyltetradecane, 7-methylheptadecane, 4-methyltetradecane, 2,5-dimethyltridecane, and methyltetradecane were added batch by batch into a stainless steel reactor, and the temperature in the stainless steel reactor was raised to 70°C; Step 3: 2-methylundecane, 3-methylundecane, 3,6-dimethyldecane, 3,7-dimethyldecane, 3,8-dimethyldecane, 6-methylundecane, 2,5-dimethyldecane, 3,8-dimethyl-undecane, and C16H34 were added batch by batch into a stainless steel reactor. The temperature in the stainless steel reactor was maintained at 70°C and the speed of the stirrer of the stainless steel reactor was 2000 rpm. Step 4: The temperature in the stainless steel reactor was lowered to 60°C, and 2-bromododecane was added into the stainless steel reactor; Step 5: The temperature in the stainless steel reactor is lowered to a constant temperature of 60°C, and methyl palmitate, methyl octadecene-9,12-dienoate, and methyl cis-11-octadecenoate are added into the stainless steel reactor to form a finished fuel.

[0009] This solution also discloses the application of bio-blended fuel: bio-blended fuel is used as fuel for gas stoves.

[0010] The beneficial effects achieved by the present invention using the above structure are as follows: (1) 10-Methyleicosane and 5-methyltetradecane provide high volumetric calorific value, and the flame temperature is higher than that of ordinary biodiesel.

[0011] (2) High-carbon straight-chain alkanes such as n-nonadecane improve combustion sustainability and avoid flame flickering. DETAILED DESCRIPTION

[0012] The following are specific embodiments of the present invention to further describe the technical solution of the present invention, but the scope of protection of the present invention is not limited to these embodiments. Any changes or equivalent substitutions that do not deviate from the concept of the present invention are included in the scope of protection of the present invention.

[0013] Example 1 Bio-blended fuel, the raw material ratio is: including the following components: 6.81% methyl palmitate, 0.58% methyl octadecene-9,12-dienoate, 0.94% methyl cis-11-octadecenoate, 0.34% 2-methylundecane, 0.32% 3-methylundecane, 0.56% 3,6-dimethyldecane, 0.53% 3.7-dimethyldecane, 0.76% 3,8-dimethyl-undecane, 0.8% 3,8-dimethyl-1,1-dimethyldecane, 0.9% 3,8-dimethyl-1,1-dimethyl ...9% 3,8-dimethyl-1,1 Decane 0.77%, 10-methyleicosane 8%, 2,5-dimethyldodecane 3.35%, 5-methyltridecane 3.30%, 4-methyl-tridecane 3.79%, 2-bromododecane 7.16%, 3-methyl-5-propylnonane 1.15%, 3-methyl-tetradecane 2.18%, n-nonadecane 18.45%, 6-methylundecane 1.89%, 2,5-dimethyldecane 4.07%, C16H34 2.76%, 5-methyl-tetradecane 5.7%, 7-methylheptadecane 1.9%, 4-methyltetradecane 3.94%, 3-methyl-tetradecane 6.11%, 2.5-dimethyltridecane 5.34%, methyltetradecane 3.2%, n-pentadecane 3%, tetradecane 3.1%.

[0014] Preparation process: Step 1: n-nonadecane, n-pentadecane, and tetradecane were mixed in a stainless steel reactor at 65°C, and nitrogen was introduced into the reactor, and the mixture was pre-stirred for 20 min at a stirrer speed of 500 rpm. Step 2: 10-methyleicosane, 2,5-dimethyldodecane, 5-methyltridecane, 4-methyltridecane, 3-methyl-5-propylnonane, 3-methyltetradecane, 5-methyltetradecane, 7-methylheptadecane, 4-methyltetradecane, 2,5-dimethyltridecane, and methyltetradecane were added batch by batch into a stainless steel reactor, and the temperature in the stainless steel reactor was raised to 70°C; Step 3: 2-methylundecane, 3-methylundecane, 3,6-dimethyldecane, 3,7-dimethyldecane, 3,8-dimethyldecane, 6-methylundecane, 2,5-dimethyldecane, 3,8-dimethyl-undecane, and C16H34 were added batch by batch into a stainless steel reactor. The temperature in the stainless steel reactor was maintained at 70°C and the speed of the stirrer of the stainless steel reactor was 2000 rpm. Step 4: The temperature in the stainless steel reactor was lowered to 60°C, and 2-bromododecane was added into the stainless steel reactor; Step 5: The temperature in the stainless steel reactor is lowered to a constant temperature of 60°C, and methyl palmitate, methyl octadecene-9,12-dienoate, and methyl cis-11-octadecenoate are added into the stainless steel reactor to form a finished fuel.

[0015] Example 2 Bio-blending fuel, the raw material ratio is: methyl palmitate 7%, methyl octadecane-9,12-dienoate 0.78%, methyl cis-11-octadecenoate 1.14%, 2-methylundecane 0.54%, 3-methylundecane 0.52%, 3,6-dimethyldecane 0.76%, 3.7-dimethyldecane 0.73%, 3,8-dimethyl-undecane 0.96%, 3,8-dimethyldecane 0.97%, 10-methyleicosane 8.2%, 2,5-dimethyldodecane 3.75%, 5-methyltridecane 3.5%, 4-methyltridecane 3.99%, 2-bromododecane 7.36%, 3-methyl-5-propylnonane 1.35%, 3-methyl-tetradecane 2.38%, n-nonadecane 18.65%, 6-methylundecane 2.09%, 2,5-dimethyldecane 4.27%, C16H34 2.96%, 5-methyl-tetradecane 5.9%, 7-methylheptadecane 2.1%, 4-methyltetradecane 4.14%, 3-methyl-tetradecane 6.31%, 2.5-dimethyltridecane 5.54%, methyltetradecane 3.4%, n-pentadecane 3.2%, tetradecane 3.3%.

[0016] Preparation process: Step 1: n-nonadecane, n-pentadecane, and tetradecane were mixed in a stainless steel reactor at 65°C, and nitrogen was introduced into the reactor, and the mixture was pre-stirred for 20 min at a stirrer speed of 500 rpm. Step 2: 10-methyleicosane, 2,5-dimethyldodecane, 5-methyltridecane, 4-methyltridecane, 3-methyl-5-propylnonane, 3-methyltetradecane, 5-methyltetradecane, 7-methylheptadecane, 4-methyltetradecane, 2,5-dimethyltridecane, and methyltetradecane were added batch by batch into a stainless steel reactor, and the temperature in the stainless steel reactor was raised to 70°C; Step 3: 2-methylundecane, 3-methylundecane, 3,6-dimethyldecane, 3,7-dimethyldecane, 3,8-dimethyldecane, 6-methylundecane, 2,5-dimethyldecane, 3,8-dimethyl-undecane, and C16H34 were added batch by batch into a stainless steel reactor. The temperature in the stainless steel reactor was maintained at 70°C and the speed of the stirrer of the stainless steel reactor was 2000 rpm. Step 4: The temperature in the stainless steel reactor was lowered to 60°C, and 2-bromododecane was added into the stainless steel reactor; Step 5: The temperature in the stainless steel reactor is lowered to a constant temperature of 60°C, and methyl palmitate, methyl octadecene-9,12-dienoate, and methyl cis-11-octadecenoate are added into the stainless steel reactor to form a finished fuel.

[0017] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. Bio-blended fuel, characterized by: It includes the following ingredients: methyl palmitate 6-7%, methyl octadecane-9.12-dienoate 0.38-0.78%, methyl cis-11-octadecenoate 0.74-1.14%, 2-methylundecane 0.14-0.54%, 3-methylundecane 0.12-0.52%, 3,6-dimethyldecane 0.36-0.76%, 3.7-dimethyldecane 0.33-0.73%, 3,8-dimethyl-undecane 0.56-0.96%, 3,8-dimethyldecane 0.57-0.97%, 10-methyleicosane 7.8-8.2%, 2,5-dimethyldodecane 3.25-3.75%, 5-methyltridecane 3.1-3.5%, 4-methyl-tridecane 3.59-3.99%, 2 -Bromododecane 6.96~7.36%, 3-methyl-5-propylnonane 0.95~1.35%, 3-methyl-tetradecane 1.98~2.38%, n-nonadecane 18.25~18.65%, 6-methylundecane 1.69~2.09%, 2,5-dimethyldecane 3.87~4.27%, C16H34 2.56~2.96%, 5-methyl-tetradecane 5.5~5.9%, 7-methylheptadecane 1.7~2.1%, 4-methyltetradecane 3.74~4.14%, 3-methyl-tetradecane 5.91~6.31%, 2.5-dimethyltridecane 5.14~5.54%, methyltetradecane 3~3.4%, n-pentadecane 2.8~3.2%, tetradecane 2.9~3.3%.

2. The bio-blended fuel according to claim 1, characterized in that: The following ingredients are included: methyl palmitate 6.81%, methyl octadecane-9,12-dienoate 0.58%, methyl cis-11-octadecenoate 0.94%, 2-methylundecane 0.34%, 3-methylundecane 0.32%, 3,6-dimethyldecane 0.56%, 3.7-dimethyldecane 0.53%, 3,8-dimethyl-undecane 0.76%, 3,8-dimethyldecane 0.77%, 10-methyleicosane 8%, 2,5-dimethyldodecane 3.35%, 5-methyltridecane 3.30%, 4-methyltridecane 3.79%, 2-bromododecane 7.16%, 3-methyl-5-propylnonane 1.15%, 3-methyl-tetradecane 2.18%, n-nonadecane 18.45%, 6-methylundecane 1.89%, 2,5-dimethyldecane 4.07%, C16H34 2.76%, 5-methyl-tetradecane 5.7%, 7-methylheptadecane 1.9%, 4-methyltetradecane 3.94%, 3-methyl-tetradecane 6.11%, 2.5-dimethyltridecane 5.34%, methyltetradecane 3.2%, n-pentadecane 3%, tetradecane 3.1%.

3. A method for preparing bio-blending fuel, wherein the bio-blending fuel according to claim 2 is prepared, characterized in that: The main steps are as follows: Step 1: n-nonadecane, n-pentadecane, and tetradecane were mixed in a stainless steel reactor at 65°C, and nitrogen was introduced into the stainless steel reactor, and pre-stirred for 20 minutes at a stirrer speed of 500 rpm. Step 2: 10-methyleicosane, 2,5-dimethyldodecane, 5-methyltridecane, 4-methyltridecane, 3-methyl-5-propylnonane, 3-methyltetradecane, 5-methyltetradecane, 7-methylheptadecane, 4-methyltetradecane, 2,5-dimethyltridecane, and methyltetradecane were added batch by batch into a stainless steel reactor, and the temperature in the stainless steel reactor was raised to 70°C; Step 3: 2-methylundecane, 3-methylundecane, 3,6-dimethyldecane, 3,7-dimethyldecane, 3,8-dimethyldecane, 6-methylundecane, 2,5-dimethyldecane, 3,8-dimethyl-undecane, and C16H34 were added batch by batch into a stainless steel reactor. The temperature in the stainless steel reactor was maintained at 70°C and the speed of the stirrer of the stainless steel reactor was 2000 rpm. Step 4: The temperature in the stainless steel reactor was lowered to 60°C, and 2-bromododecane was added into the stainless steel reactor; Step 5: The temperature in the stainless steel reactor is lowered to a constant temperature of 60°C, and methyl palmitate, methyl octadecene-9,12-dienoate, and methyl cis-11-octadecenoate are added into the stainless steel reactor to form a finished fuel.

4. An application of the bio-blended fuel according to claim 1, characterized in that: Bio-blended fuel is used as fuel for gas stoves.