Alcohol-based fuel as well as preparation method and application thereof

Abstract

The invention belongs to the technical field of chemical fuel, and particularly relates to alcohol-based fuel as well as a preparation method and application thereof. The alcohol-based fuel is prepared from the following raw materials in parts by weight: 20 to 40 parts of low-carbon alcohol, 10 to 25 parts of fusel oil, 40 to 50 parts of calorific value improver, 2 to 10 parts of combustion improver, 0.5 to 15 parts of stabilizer and 0.01 to 0.05 part of antioxidant, the alcohol-based fuel has the beneficial effects that the alcohol-based fuel takes low-carbon alcohol and fusel oil as a main fuel and a main solvent, the calorific value improver and the like are added to improve the calorific value of the fuel, methyl tert-butyl ether, acetone or isooctyl nitrate is taken as a combustion improver, dimethyl carbonate, fatty alcohol-polyoxyethylene ether or ferrocene (deferrization) is taken as a stabilizer, and 2, 2, 4-trimethyl-1, 3-pentanediol monoisobutyrate is taken as a combustion improver. According to the present invention, 2, 6-di-tert-butyl mixed phenol and N, N '-bis (salicylidene)-1, 2-propane diamine are adopted as the antioxidant and the metal deactivator, and accurate proportioning and scientific mixing are performed to obtain the high-calorific-value and high-cleanliness alcohol-based fuel oil, and the calorific value of the alcohol-based fuel reaches more than 8000 kcal / kg so as to completely meet the daily consumption use of the conventional boiler and kiln.

Description

Technical Field

[0001] The invention belongs to the technical field of chemical fuels, and in particular relates to an alcohol-based fuel and a preparation method and application thereof. Background Art

[0002] Traditional boiler fuels, such as coal and diesel, have problems such as low combustion efficiency and high pollutant emissions. For a long time, sulfur dioxide, nitrogen oxides and smoke emitted during coal combustion have been the main causes of air pollution. With the continuous growth of energy demand and the improvement of environmental protection awareness, the development of new, efficient, clean and environmentally friendly energy products has become an important issue in the industry.

[0003] Alcohol-based liquid fuel is a new type of clean energy that is cheap and environmentally friendly. Alcohol-based liquid fuel contains oxygen, requires less oxygen for combustion, has the advantages of full combustion, environmental protection and cleanliness, and has gradually attracted attention as a substitute for boiler and kiln fuel. However, the existing alcohol-based liquid fuels on the market often have problems such as low calorific value and unstable combustion, which makes it difficult to meet the high-efficiency requirements of boilers and kilns. Summary of the invention

[0004] The present application provides an alcohol-based fuel and a preparation method and application thereof, aiming to solve the problems of low calorific value and unstable combustion of alcohol-based fuel in the prior art.

[0005] The first aspect of the present application provides an alcohol-based fuel, comprising the following raw materials in parts by weight: 20-40 parts of low-carbon alcohol, 10-25 parts of fusel oil, 40-50 parts of calorific value enhancer, 2-10 parts of combustion aid, 0.5-15 parts of stabilizer and 0.01-0.05 parts of antioxidant.

[0006] The alcohol-based fuel described in this application uses low-carbon alcohol and fusel oil as the main fuel and main solvent, adds calorific value enhancers to improve the calorific value of the fuel, methyl tert-butyl ether, acetone, or isooctyl nitrate as combustion aids, dimethyl carbonate, fatty alcohol polyoxyethylene ether or ferrocene (ferro-free) as stabilizers, 2,6-di-tert-butyl mixed phenol, N,N'-di-salicylidene-1,2-propylenediamine as antioxidants and metal passivators, and obtains high calorific value and high cleanliness alcohol-based fuel oil after precise proportioning and scientific mixing. The calorific value of the alcohol-based fuel described in this application reaches more than 8000kcal / kg, which can fully meet the daily consumption of conventional boilers and kilns.

[0007] According to some embodiments of the alcohol-based fuel described in the present application, the following raw materials are included in parts by weight: 25-35 parts of low-carbon alcohol, 12-20 parts of fusel oil, 42-48 parts of calorific value enhancer, 5-8 parts of combustion aid, 2-10 parts of stabilizer and 0.02-0.04 parts of antioxidant.

[0008] According to some embodiments of the alcohol-based fuel described in the present application, the low-carbon alcohol includes one or more of methanol, ethanol, propanol and butanol.

[0009] According to some embodiments of the alcohol-based fuel described in the present application, the fusel oil includes one or more of the bottom residue of alcohol distillation, the residue of propylene distillation, the residue of xylene extraction in chemical production, waste gasoline, waste diesel, waste kerosene, waste acetone, waste grease and recycled kitchen waste grease.

[0010] According to some embodiments of the alcohol-based fuel described in the present application, the bottom residue of the alcohol distillation includes the bottom residue of the alcohol distillation of methanol, ethanol, propanol, butanol, pentanol, octanol and the like.

[0011] According to some embodiments of the alcohol-based fuel described in the present application, the calorific value enhancer includes one or more of coal-based mixed pentene, condensate oil and naphtha.

[0012] According to some embodiments of the alcohol-based fuel described in the present application, the combustion improver includes one or more of methyl tert-butyl ether, acetone and isooctyl nitrate.

[0013] According to some embodiments of the alcohol-based fuel described in the present application, the stabilizer includes one or more of dimethyl carbonate, fatty alcohol polyoxyethylene ether and ferrocene.

[0014] According to some embodiments of the alcohol-based fuel described in the present application, the antioxidant includes 2,6-di-tert-butyl mixed phenol and / or N,N'-disalicylidene-1,2-propylenediamine.

[0015] According to some embodiments of the alcohol-based fuel described in the present application, the calorific value of the alcohol-based fuel is ≥8000 kcal / kg.

[0016] The second aspect of the present application provides a method for preparing the alcohol-based fuel described in the first aspect of the present application, comprising the following steps: mixing low-carbon alcohol, fusel oil, calorific value enhancer, combustion aid, stabilizer and antioxidant to obtain the alcohol-based fuel.

[0017] According to some embodiments of the preparation method described in the present application, the mixing temperature is 20-30° C., the mixing time is 0.5-1 h, and the mixing speed is 200-300 r / min.

[0018] The third aspect of the present application provides an application of the alcohol-based fuel described in the first aspect of the present application or the alcohol-based fuel obtained by the preparation method described in the second aspect of the present application in boiler kiln fuel.

[0019] The beneficial effects of the present invention include: the alcohol-based fuel described in the present application uses low-carbon alcohol and fusel oil as the main fuel and main solvent, adds a calorific value enhancer to improve the calorific value of the fuel, methyl tert-butyl ether, acetone or isooctyl nitrate as a combustion aid, dimethyl carbonate, fatty alcohol polyoxyethylene ether or ferrocene (without iron) as a stabilizer, 2,6-di-tert-butyl mixed phenol, N,N'-di-salicylidene-1,2-propylenediamine as an antioxidant and a metal passivator, and after precise proportioning and scientific mixing, a high calorific value, high cleanliness, and stable combustion alcohol-based fuel oil is obtained. The calorific value of the alcohol-based fuel described in the present application reaches more than 8000kcal / kg, which can fully meet the daily consumption and use of conventional boilers and kilns. DETAILED DESCRIPTION

[0020] Embodiments of the present invention are described in detail below. The embodiments are exemplary and intended to be used to explain the present invention, but should not be construed as limiting the present invention.

[0021] In the present invention, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0022] The embodiment of the present application provides an alcohol-based fuel, comprising the following raw materials in parts by weight: 20-40 parts of low-carbon alcohol, 10-25 parts of fusel oil, 40-50 parts of calorific value enhancer, 2-10 parts of combustion aid, 0.5-15 parts of stabilizer and 0.01-0.05 parts of antioxidant.

[0023] The alcohol-based fuel described in this application uses low-carbon alcohol and fusel oil as the main fuel and main solvent, adds calorific value enhancers to improve the calorific value of the fuel, methyl tert-butyl ether, acetone or isooctyl nitrate as combustion aids, dimethyl carbonate, fatty alcohol polyoxyethylene ether or ferrocene (iron removal) as stabilizers, 2,6-di-tert-butyl mixed phenol, N,N'-di-salicylidene-1,2-propylenediamine as antioxidants and metal passivators, and obtains high calorific value and high cleanliness alcohol-based fuel oil after precise proportioning and scientific mixing. The calorific value of the alcohol-based fuel described in this application reaches more than 8000kcal / kg, which can fully meet the daily consumption of conventional boilers and kilns.

[0024] In some embodiments of the present application, the following raw materials are included in parts by weight: 25-35 parts of low-carbon alcohol, 12-20 parts of fusel oil, 42-48 parts of calorific value enhancer, 5-8 parts of combustion aid, 2-10 parts of stabilizer and 0.02-0.04 parts of antioxidant.

[0025] In some embodiments of the present application, the following raw materials are included in parts by weight: 25 parts of low-carbon alcohol, 12 parts of fusel oil, 42 parts of calorific value enhancer, 5 parts of combustion aid, 2 parts of stabilizer and 0.02 parts of antioxidant.

[0026] In some embodiments of the present application, the following raw materials are included in parts by weight: 28 parts of low-carbon alcohol, 15 parts of fusel oil, 43 parts of calorific value enhancer, 6 parts of combustion aid, 6 parts of stabilizer and 0.02 parts of antioxidant.

[0027] In some embodiments of the present application, the following raw materials are included in parts by weight: 30 parts of low-carbon alcohol, 16 parts of fusel oil, 45 parts of calorific value enhancer, 7 parts of combustion aid, 8 parts of stabilizer and 0.03 parts of antioxidant.

[0028] In some embodiments of the present application, the following raw materials are included in parts by weight: 32 parts of low-carbon alcohol, 12 parts of fusel oil, 46 parts of calorific value enhancer, 5 parts of combustion aid, 5 parts of stabilizer and 0.04 parts of antioxidant.

[0029] In some embodiments of the present application, the following raw materials are included in parts by weight: 35 parts of low-carbon alcohol, 20 parts of fusel oil, 48 parts of calorific value enhancer, 8 parts of combustion aid, 10 parts of stabilizer and 0.04 parts of antioxidant.

[0030] In some embodiments of the present application, the low-carbon alcohol includes one or more of the polyols such as methanol, ethanol, propanol and butanol. Low-carbon alcohols are alcohol compounds that produce less carbon emissions during production and use. These compounds are environmentally friendly and flammable, and are widely used as fuels, solvents and chemical raw materials, with the potential for sustainable development.

[0031] In some embodiments of the present application, the fusel oil includes (1) the bottom residue of distillation of alcohols such as methanol, ethanol, propanol, butanol, pentanol, and octanol (calculated as effective combustibles); (2) heavy aromatics: the residue of propylene distillation; the residue of xylene extraction in chemical production; (3) waste gasoline, waste diesel, waste kerosene; waste acetone; waste grease; recycled kitchen waste grease, etc. Fusel oil is flammable, and its vapor may form explosive substances when mixed with air, so safety should be paid attention to during storage and use.

[0032] In some embodiments of the present application, the calorific value enhancer includes one or more of coal-based mixed pentene, condensate and naphtha. Calorific value enhancer is a chemical substance that can improve the calorific value of fuel. By adding an appropriate amount of calorific value enhancer in the fuel, the calorific value of the fuel can be significantly improved, thereby improving energy efficiency. In the past, alcohol-based fuels with high calorific value had poor stability due to the increase of heavy hydrocarbons, were difficult to store and transport, and were not fully burned, causing environmental pressure, but coal-based mixed pentene, condensate and naphtha belong to light hydrocarbon high calorific value substances, if added to alcohol-based fuels, not only the calorific value of the alcohol-based fuel can be improved, but also the poor stability problem caused by adding heavy hydrocarbons can be solved.

[0033] In some embodiments of the present application, the combustion improver includes one or more of methyl tert-butyl ether, acetone and isooctyl nitrate. Methyl tert-butyl ether has similar properties to hydrocarbons, and acetone and isooctyl nitrate can improve the solubility and water resistance of the calorific value enhancer with low-carbon alcohols, and improve the combustion performance of alcohol-based fuels.

[0034] In some embodiments of the present application, the stabilizer includes one or more of dimethyl carbonate, fatty alcohol polyoxyethylene ether (surfactant) and ferrocene. The alcohol-based fuel of the present invention is mainly composed of a mixture of alcohols and some hydrocarbons. When placed for a long time or at a low temperature, stratification may occur, resulting in unstable fuel quality. The stabilizer is added to keep the system stable in a low temperature environment.

[0035] In some embodiments of the present application, the antioxidant includes 2,6-di-tert-butyl mixed phenol and / or N,N'-disalicylidene-1,2-propylenediamine.

[0036] In some embodiments of the present application, the calorific value of the alcohol-based fuel is ≥ 8000 kcal / kg, for example, 8000 kcal / kg, 8500 kcal / kg, etc.

[0037] An embodiment of the present application also provides a method for preparing the alcohol-based fuel described in the first aspect of the present application, comprising the following steps: mixing low-carbon alcohol, fusel oil, calorific value enhancer, combustion aid, stabilizer and antioxidant to obtain the alcohol-based fuel.

[0038] In some embodiments of the present application, the mixing temperature is 20-30° C., the mixing time is 0.5-1 h, and the mixing speed is 200-300 r / min.

[0039] An embodiment of the present application also provides an application of the alcohol-based fuel described in the first aspect of the present application or the alcohol-based fuel obtained by the preparation method described in the second aspect of the present application in boiler kiln fuel.

[0040] The technical solution of the present application is further described below in conjunction with specific embodiments.

[0041] Example 1

[0042] An alcohol-based fuel oil comprises the following raw materials by weight:

[0043] 20g methanol, 20g ethanol, 15.7g fusel oil (the bottom residue of methanol distillation, calculated as effective combustibles), 40g coal-based mixed pentenes, 0.2g methyl tert-butyl ether, 2g acetone, 0.6g dimethyl carbonate, 0.3g ferrocene (deferrification), 0.6g isooctyl nitrate, 0.6g fatty alcohol polyoxyethylene ether, 0.01g 2,6-di-tert-butyl mixed phenol, and 0.01g N,N'-disalicylidene-1,2-propylenediamine.

[0044] The method for preparing the alcohol-based fuel oil described in Example 1 comprises the following steps:

[0045] Methanol, ethanol and fusel oil are mixed and stirred evenly according to the above weight portions, and coal-based mixed pentenes, dimethyl carbonate, ferrocene (without iron), fatty alcohol polyoxyethylene ether, methyl tert-butyl ether, acetone, isooctyl nitrate, 2,6-di-tert-butyl mixed phenol, N,N'-disalicylidene-1,2-propylenediamine are added in sequence and stirred at a speed of 300 r / min for 0.5 h at 25°C to obtain the alcohol-based fuel oil.

[0046] Example 2

[0047] An alcohol-based fuel oil comprises the following raw materials by weight:

[0048] 25g methanol, 20g fusel oil (the residual liquid at the bottom of methanol distillation kettle, calculated as effective combustibles), 50g coal-based mixed pentenes, 0.2g methyl tert-butyl ether, 2g acetone, 0.8g dimethyl carbonate, 0.3g ferrocene (deferrification), 2g isooctyl nitrate, 0.8g fatty alcohol polyoxyethylene ether, 0.01g 2,6-di-tert-butyl mixed phenol, and 0.01g N,N'-disalicylidene-1,2-propylenediamine.

[0049] The method for preparing the alcohol-based fuel oil described in Example 2 comprises the following steps:

[0050] Methanol and fusel oil are mixed and stirred evenly according to the above weight portions, and coal-based mixed pentenes, dimethyl carbonate, ferrocene (without iron), fatty alcohol polyoxyethylene ether, methyl tert-butyl ether, acetone, isooctyl nitrate, 2,6-di-tert-butyl mixed phenol, N,N'-disalicylidene-1,2-propylenediamine are added in sequence and stirred at a speed of 300 r / min for 0.5 h at 25°C to obtain the alcohol-based fuel oil.

[0051] Example 3

[0052] An alcohol-based fuel oil comprises the following raw materials by weight:

[0053] 10g methanol, 25g ethanol, 20g fusel oil (the bottom residue of methanol distillation, calculated as effective combustibles), 48g coal-based mixed pentenes, 2g acetone, 3g dimethyl carbonate, 0.3g ferrocene (deferrification), 1.5g isooctyl nitrate, 2g fatty alcohol polyoxyethylene ether, 0.02g 2,6-di-tert-butyl mixed phenol, and 0.02g N,N'-disalicylidene-1,2-propylenediamine.

[0054] The method for preparing the alcohol-based fuel oil described in Example 3 comprises the following steps:

[0055] Methanol, ethanol and fusel oil are mixed and stirred evenly according to the above weight portions, and coal-based mixed pentenes, dimethyl carbonate, ferrocene (without iron), fatty alcohol polyoxyethylene ether, acetone, isooctyl nitrate, 2,6-di-tert-butyl mixed phenol, N,N'-disalicylidene-1,2-propylenediamine are added in sequence and stirred at a speed of 300 r / min for 0.5 h at 25°C to obtain the alcohol-based fuel oil.

[0056] Example 4

[0057] An alcohol-based fuel oil comprises the following raw materials by weight:

[0058] 15g methanol, 20g ethanol, 18g fusel oil (the bottom residue of methanol distillation, calculated as effective combustibles), 15g naphtha, 15g condensate oil, 17g coal-based mixed pentenes, 0.8g methyl tert-butyl ether, 1.5g dimethyl carbonate, 0.3g ferrocene (deferrification), 3g isooctyl nitrate, 0.8g fatty alcohol polyoxyethylene ether, 0.01g 2,6-di-tert-butyl mixed phenol, and 0.01g N,N'-disalicylidene-1,2-propylenediamine.

[0059] The method for preparing the alcohol-based fuel oil described in Example 4 comprises the following steps:

[0060] Methanol, ethanol and fusel oil are mixed and stirred evenly according to the above weight portions, and coal-based mixed pentene, naphtha, condensate, methyl tert-butyl ether, dimethyl carbonate, ferrocene (without iron), fatty alcohol polyoxyethylene ether, isooctyl nitrate, 2,6-di-tert-butyl mixed phenol, N,N'-disalicylidene-1,2-propylenediamine are added in sequence and stirred at a speed of 300 r / min for 0.5 h at 25°C to obtain the alcohol-based fuel oil.

[0061] Example 5

[0062] The only difference between Example 5 and Example 2 is that butanol is used instead of methanol in the preparation process of the alcohol-based fuel oil described in Example 5.

[0063] The specific steps are:

[0064] The alcohol-based fuel oil described in Example 5 includes the following raw materials by weight:

[0065] 25g butanol, 20g fusel oil (the residual liquid at the bottom of methanol distillation kettle, calculated as effective combustibles), 50g coal-based mixed pentenes, 0.2g methyl tert-butyl ether, 2g acetone, 0.8g dimethyl carbonate, 0.3g ferrocene (deferrification), 2g isooctyl nitrate, 0.8g fatty alcohol polyoxyethylene ether, 0.01g 2,6-di-tert-butyl mixed phenol, and 0.01g N,N'-disalicylidene-1,2-propylenediamine.

[0066] The method for preparing the alcohol-based fuel oil described in Example 5 comprises the following steps:

[0067] Butanol and fusel oil are mixed and stirred evenly according to the above weight portions, and coal-based mixed pentenes, dimethyl carbonate, ferrocene (without iron), fatty alcohol polyoxyethylene ether, methyl tert-butyl ether, acetone, isooctyl nitrate, 2,6-di-tert-butyl mixed phenol, N,N'-disalicylidene-1,2-propylenediamine are added in sequence and stirred at a speed of 300 r / min for 0.5 h at 25° C. to obtain the alcohol-based fuel oil.

[0068] Comparative Example 1

[0069] The only difference between Comparative Example 1 and Example 2 is that the alcohol-based fuel in Comparative Example 1 does not contain fusel oil, and fusel oil is replaced by methanol, and the methanol content is 45 g.

[0070] The specific steps include:

[0071] Comparative Example 1 The alcohol-based fuel comprises the following raw materials by weight:

[0072] 45g methanol, 50g coal-based mixed pentenes, 0.2g methyl tert-butyl ether, 2g acetone, 0.8g dimethyl carbonate, 0.3g ferrocene (deferrocene), 2g isooctyl nitrate, 0.8g fatty alcohol polyoxyethylene ether, 0.01g 2,6-di-tert-butyl mixed phenol, and 0.01g N,N'-disalicylidene-1,2-propylenediamine.

[0073] The preparation method of the alcohol-based fuel oil described in Comparative Example 1 comprises the following steps:

[0074] Methanol and coal-based mixed pentenes are mixed and stirred evenly according to the above weight portions, and dimethyl carbonate, ferrocene (without iron), fatty alcohol polyoxyethylene ether, methyl tert-butyl ether, acetone, isooctyl nitrate, 2,6-di-tert-butyl mixed phenol, N,N'-disalicylidene-1,2-propylenediamine are added in sequence and stirred at a speed of 300 r / min for 0.5 h at 25°C to obtain the alcohol-based fuel oil.

[0075] Comparative Example 2

[0076] The only difference between Comparative Example 2 and Example 2 is that the alcohol-based fuel in Comparative Example 2 does not contain coal-based mixed pentenes, and the coal-based mixed pentenes are replaced by methanol, and the methanol content is 75 g.

[0077] The specific steps include:

[0078] Comparative Example 2 The alcohol-based fuel includes the following raw materials by weight:

[0079] 75g methanol, 20g fusel oil (the residual liquid at the bottom of methanol distillation kettle, calculated as effective combustibles), 0.2g methyl tert-butyl ether, 2g acetone, 0.8g dimethyl carbonate, 0.3g ferrocene (deferrification), 2g isooctyl nitrate, 0.8g fatty alcohol polyoxyethylene ether, 0.01g 2,6-di-tert-butyl mixed phenol, and 0.01g N,N'-disalicylidene-1,2-propylenediamine.

[0080] The preparation method of the alcohol-based fuel oil described in Comparative Example 2 comprises the following steps:

[0081] Methanol and fusel oil are mixed and stirred evenly according to the above weight portions, and dimethyl carbonate, ferrocene (without iron), fatty alcohol polyoxyethylene ether, methyl tert-butyl ether, acetone, isooctyl nitrate, 2,6-di-tert-butyl mixed phenol, and N,N'-disalicylidene-1,2-propylenediamine are added in sequence and stirred at a speed of 300 r / min for 0.5 h at 25° C. to obtain the alcohol-based fuel oil.

[0082] Comparative Example 3

[0083] The only difference between Comparative Example 3 and Example 2 is that the alcohol-based fuel in Comparative Example 3 does not contain fusel oil and coal-based mixed pentenes, and fusel oil and coal-based mixed pentenes are replaced by methanol, and the methanol content is 95g.

[0084] The specific steps include:

[0085] Comparative Example 3 The alcohol-based fuel comprises the following raw materials by weight:

[0086] 95g methanol, 0.2g methyl tert-butyl ether, 2g acetone, 0.8g dimethyl carbonate, 0.3g ferrocene (deferrocene), 2g isooctyl nitrate, 0.8g fatty alcohol polyoxyethylene ether, 0.01g 2,6-di-tert-butyl mixed phenol, 0.01g N,N'-disalicylidene-1,2-propylenediamine.

[0087] The preparation method of the alcohol-based fuel oil described in Comparative Example 3 comprises the following steps:

[0088] Methyl tert-butyl ether, acetone, dimethyl carbonate, ferrocene (without iron), isooctyl nitrate, fatty alcohol polyoxyethylene ether, 2,6-di-tert-butyl mixed phenol and N,N'-disalicylidene-1,2-propylenediamine were added to methanol in sequence according to the above weight portions, and stirred at a speed of 300 r / min for 0.5 h at 25° C. to obtain the alcohol-based fuel oil.

[0089] The combustion performance of the alcohol-based fuels described in Examples 1-5 and Comparative Examples 1-3 of the present application was studied, and the results are shown in Table 1.

[0090] Table 1

[0091]

[0092]

[0093] Note: The calorific value of combustion described in this application is tested according to the oxygen bomb method in Chapter 1 of GB / T 384.

[0094] The stability described in this application is tested according to GB / T 6986 to determine whether there is stratification at -20°C.

[0095] It can be seen from Table 1 that the calorific value of the alcohol-based fuel added with fusel oil and coal-based mixed pentene is greatly improved, up to about two times. The fuel burns stably, has stable properties, is a pollution-free clean energy, and can meet the high-efficiency requirements of boilers and kilns.

[0096] Although the above embodiments have been shown and described, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations on the present invention. Changes, modifications, substitutions and variations of the above embodiments by those of ordinary skill in the art are all within the scope of protection of the present invention.

Claims

1. An alcohol-based fuel, characterized in that: The invention comprises the following raw materials in parts by weight: 20-40 parts of low-carbon alcohol, 10-25 parts of fusel oil, 40-50 parts of calorific value enhancer, 2-10 parts of combustion improver, 0.5-15 parts of stabilizer and 0.01-0.05 parts of antioxidant.

2. The alcohol-based fuel according to claim 1, characterized in that: The invention comprises the following raw materials in parts by weight: 25-35 parts of low-carbon alcohol, 12-20 parts of fusel oil, 42-48 parts of calorific value enhancer, 5-8 parts of combustion improver, 2-10 parts of stabilizer and 0.02-0.04 parts of antioxidant.

3. The alcohol-based fuel according to claim 1, characterized in that: The low-carbon alcohol includes one or more of methanol, ethanol, propanol and butanol.

4. The alcohol-based fuel according to claim 1, characterized in that: The calorific value enhancer includes one or more of coal-based mixed pentene, condensate oil and naphtha; And / or, the combustion improver includes one or more of methyl tert-butyl ether, acetone and isooctyl nitrate.

5. The alcohol-based fuel according to claim 1, characterized in that: The stabilizer includes one or more of dimethyl carbonate, fatty alcohol polyoxyethylene ether and ferrocene.

6. The alcohol-based fuel according to claim 1, characterized in that: The antioxidant includes 2,6-di-tert-butyl mixed phenol and / or N,N'-disalicylidene-1,2-propylenediamine.

7. The alcohol-based fuel according to claim 1, characterized in that: The calorific value of the alcohol-based fuel is ≥8000 kcal / kg.

8. The method for preparing the alcohol-based fuel according to any one of claims 1 to 7, characterized in that: The following steps are involved: The alcohol-based fuel is obtained by mixing low-carbon alcohol, fusel oil, calorific value enhancer, combustion improver, stabilizer and antioxidant.

9. The preparation method according to claim 8, characterized in that: The mixing temperature is 20-30° C., the mixing time is 0.5-1 h, and the mixing speed is 200-300 r / min.

10. Use of the alcohol-based fuel according to any one of claims 1 to 7 or the alcohol-based fuel obtained by the preparation method according to any one of claims 8 to 9 as boiler and kiln fuel.

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