CN115449408B - Civil coal-based synthetic liquid fuel and preparation method thereof - Google Patents
Civil coal-based synthetic liquid fuel and preparation method thereof Download PDFInfo
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- CN115449408B CN115449408B CN202211249486.3A CN202211249486A CN115449408B CN 115449408 B CN115449408 B CN 115449408B CN 202211249486 A CN202211249486 A CN 202211249486A CN 115449408 B CN115449408 B CN 115449408B
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- 239000007788 liquid Substances 0.000 title claims abstract description 148
- 239000003245 coal Substances 0.000 title claims abstract description 142
- 239000000446 fuel Substances 0.000 title claims abstract description 89
- 238000002360 preparation method Methods 0.000 title abstract description 14
- LCGLNKUTAGEVQW-UHFFFAOYSA-N Dimethyl ether Chemical compound COC LCGLNKUTAGEVQW-UHFFFAOYSA-N 0.000 claims abstract description 44
- 238000002485 combustion reaction Methods 0.000 claims abstract description 34
- 230000000994 depressogenic effect Effects 0.000 claims abstract description 26
- IEJIGPNLZYLLBP-UHFFFAOYSA-N dimethyl carbonate Chemical compound COC(=O)OC IEJIGPNLZYLLBP-UHFFFAOYSA-N 0.000 claims abstract description 22
- 238000003756 stirring Methods 0.000 claims description 38
- 238000002156 mixing Methods 0.000 claims description 27
- 239000011259 mixed solution Substances 0.000 claims description 25
- KTWOOEGAPBSYNW-UHFFFAOYSA-N ferrocene Chemical group [Fe+2].C=1C=C[CH-]C=1.C=1C=C[CH-]C=1 KTWOOEGAPBSYNW-UHFFFAOYSA-N 0.000 claims description 12
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 9
- 229910052717 sulfur Inorganic materials 0.000 claims description 9
- 239000011593 sulfur Substances 0.000 claims description 9
- 238000009833 condensation Methods 0.000 claims description 8
- 230000005494 condensation Effects 0.000 claims description 8
- 150000001335 aliphatic alkanes Chemical class 0.000 claims description 7
- 150000004945 aromatic hydrocarbons Chemical class 0.000 claims description 7
- 238000004821 distillation Methods 0.000 claims description 7
- 229920000196 poly(lauryl methacrylate) Polymers 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 3
- ZNAOFAIBVOMLPV-UHFFFAOYSA-N hexadecyl 2-methylprop-2-enoate Chemical compound CCCCCCCCCCCCCCCCOC(=O)C(C)=C ZNAOFAIBVOMLPV-UHFFFAOYSA-N 0.000 claims description 3
- HMZGPNHSPWNGEP-UHFFFAOYSA-N octadecyl 2-methylprop-2-enoate Chemical compound CCCCCCCCCCCCCCCCCCOC(=O)C(C)=C HMZGPNHSPWNGEP-UHFFFAOYSA-N 0.000 claims description 3
- ATZHWSYYKQKSSY-UHFFFAOYSA-N tetradecyl 2-methylprop-2-enoate Chemical compound CCCCCCCCCCCCCCOC(=O)C(C)=C ATZHWSYYKQKSSY-UHFFFAOYSA-N 0.000 claims description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 abstract description 24
- 230000003749 cleanliness Effects 0.000 abstract description 12
- 239000001993 wax Substances 0.000 description 81
- 239000002737 fuel gas Substances 0.000 description 8
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 6
- 239000000779 smoke Substances 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000005303 weighing Methods 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 238000004090 dissolution Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000003915 liquefied petroleum gas Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- CERQOIWHTDAKMF-UHFFFAOYSA-M Methacrylate Chemical compound CC(=C)C([O-])=O CERQOIWHTDAKMF-UHFFFAOYSA-M 0.000 description 1
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 1
- ABBQHOQBGMUPJH-UHFFFAOYSA-M Sodium salicylate Chemical compound [Na+].OC1=CC=CC=C1C([O-])=O ABBQHOQBGMUPJH-UHFFFAOYSA-M 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000009924 canning Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- NKDDWNXOKDWJAK-UHFFFAOYSA-N dimethoxymethane Chemical compound COCOC NKDDWNXOKDWJAK-UHFFFAOYSA-N 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 239000003949 liquefied natural gas Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- -1 polyoxyethylene Polymers 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 229960004025 sodium salicylate Drugs 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L1/00—Liquid carbonaceous fuels
- C10L1/02—Liquid carbonaceous fuels essentially based on components consisting of carbon, hydrogen, and oxygen only
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L1/00—Liquid carbonaceous fuels
- C10L1/10—Liquid carbonaceous fuels containing additives
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L1/00—Liquid carbonaceous fuels
- C10L1/10—Liquid carbonaceous fuels containing additives
- C10L1/14—Organic compounds
- C10L1/16—Hydrocarbons
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L1/00—Liquid carbonaceous fuels
- C10L1/10—Liquid carbonaceous fuels containing additives
- C10L1/14—Organic compounds
- C10L1/16—Hydrocarbons
- C10L1/1691—Hydrocarbons petroleum waxes, mineral waxes; paraffines; alkylation products; Friedel-Crafts condensation products; petroleum resins; modified waxes (oxidised)
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L1/00—Liquid carbonaceous fuels
- C10L1/10—Liquid carbonaceous fuels containing additives
- C10L1/14—Organic compounds
- C10L1/18—Organic compounds containing oxygen
- C10L1/19—Esters ester radical containing compounds; ester ethers; carbonic acid esters
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L1/00—Liquid carbonaceous fuels
- C10L1/10—Liquid carbonaceous fuels containing additives
- C10L1/14—Organic compounds
- C10L1/30—Organic compounds compounds not mentioned before (complexes)
- C10L1/301—Organic compounds compounds not mentioned before (complexes) derived from metals
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- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Solid Fuels And Fuel-Associated Substances (AREA)
Abstract
The invention provides a civil coal-based synthetic liquid fuel and a preparation method thereof. The civil coal-based synthetic liquid fuel comprises coal-based liquid wax, polymethoxy dimethyl ether, dimethyl carbonate, combustion improver and pour point depressant. The fuel of the invention solves the problem that the prior civil fuel is difficult to achieve high heat value, safety, cleanliness and convenience, can be used for replacing the traditional civil liquid fuel such as methanol, and is very suitable for occasions such as restaurants, hotels and families.
Description
Technical Field
The invention relates to the field of civil fuel, in particular to a civil coal-based synthetic liquid fuel and a preparation method thereof.
Background
At present, domestic fuel mainly comprises liquefied petroleum gas and natural gas. However, natural gas is supplied by a pipeline in use, and the canned liquefied petroleum gas has the limitations of compression canning, high risk factors, environmental protection and the like, and simultaneously the current situation of resources of rich coal, deficient oil and lean gas in China causes the increase of the external dependence of oil gas year by year. In recent years, alcohol-based fuels containing methanol, ethanol, and the like as main components have been commercially available, but have disadvantages such as low calorific value, poor combustibility, and susceptibility to volatilization, and cause poisoning and explosive combustion.
Disclosure of Invention
The invention mainly aims to provide a civil coal-based synthetic liquid fuel and a preparation method thereof, which are used for solving the problem that the civil fuel in the prior art is difficult to consider high heat value, safety, cleanliness and convenience.
In order to achieve the above object, according to one aspect of the present invention, there is provided a domestic coal-based synthetic liquid fuel including coal-based liquid wax, polymethoxy dimethyl ether, dimethyl carbonate, a combustion improver, and a pour point depressant.
Further, in the civil coal-based synthetic liquid fuel, the weight ratio of the coal-based liquid wax, the polymethoxy dimethyl ether, the dimethyl carbonate, the combustion improver and the pour point depressant is (90-95): (1-5): (2-5): (0.01-0.03): (0.05-0.1).
Further, the coal-based liquid wax is prepared by Fischer-Tropsch reaction.
Further, the coal-based liquid wax contains 90-97% of normal alkane and less than 0.05% of aromatic hydrocarbon by mass percent, and sulfur is less than 1mg/kg.
Further, the distillation range of the coal-based liquid wax is 180-310 ℃, the closed flash point is 70-80 ℃, and the condensation point is less than-5 ℃.
Further, the combustion improver is ferrocene.
Further, the pour point depressant is one or more of poly (dodecyl methacrylate), poly (tetradecyl methacrylate), poly (hexadecyl methacrylate) and poly (octadecyl methacrylate).
According to another aspect of the present invention, there is provided a method for preparing a domestic coal-based synthetic liquid fuel, comprising the steps of: mixing the coal-based liquid wax, the polymethoxy dimethyl ether, the dimethyl carbonate, the combustion improver and the pour point depressant, and stirring to obtain the civil coal-based synthetic liquid fuel.
Further, the preparation method comprises the following steps: step S1, mixing a first part of coal-based liquid wax with polymethoxy dimethyl ether, and stirring to prepare a first mixed solution; step S2, mixing a second part of coal-based liquid wax with dimethyl carbonate, and stirring to prepare a second mixed solution; step S3, mixing and stirring a third part of coal-based liquid wax and a combustion improver to prepare a third mixed solution; step S4, mixing the fourth part of coal-based liquid wax with the pour point depressant, and stirring to obtain a pour point depressant mixed solution; and S5, mixing the fifth part of coal-based liquid wax with the first mixed solution, the second mixed solution, the third mixed solution and the pour point depressant mixed solution, and stirring to prepare the civil coal-based synthetic liquid fuel.
Further, the fifth part of coal-based liquid wax accounts for more than or equal to 50% of the mass ratio of the coal-based liquid wax.
The invention provides a civil coal-based clean fuel and a preparation method thereof. The fuel has high combustion heat value, full and stable combustion, basically does not generate black smoke and carbon deposit, and can meet the use requirement of civil fuel. Meanwhile, the fuel has higher flash point, is nonflammable under open flame, is clean and environment-friendly, and has better safety and cleanliness. Besides, the fuel gas can be stored, transported and used at normal temperature and normal pressure, a high-pressure steel cylinder is not needed, and the fuel gas is convenient to use. In a word, the civil coal-based clean fuel provided by the invention solves the problem that the existing civil fuel is difficult to consider high heat value and safety, cleanliness and convenience, can be used for replacing the traditional civil liquid fuel such as methanol, and is very suitable for occasions such as restaurants, hotels and families.
Detailed Description
It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The present invention will be described in detail with reference to examples.
In order to solve the problems in the prior art as described above, according to an aspect of the present invention, there is provided a domestic coal-based synthetic liquid fuel including coal-based liquid wax, polymethoxy dimethyl ether, dimethyl carbonate, a combustion improver, and a pour point depressant. The fuel has high combustion heat value, full and stable combustion, basically does not generate black smoke and carbon deposit, and can meet the use requirement of civil fuel. Meanwhile, the fuel has higher flash point, is nonflammable under open flame, is clean and environment-friendly, and has better safety and cleanliness. Besides, the fuel gas can be stored, transported and used at normal temperature and normal pressure, a high-pressure steel cylinder is not needed, and the fuel gas is convenient to use. In a word, the civil coal-based clean fuel provided by the invention solves the problem that the existing civil fuel is difficult to consider high heat value and safety, cleanliness and convenience, can be used for replacing the traditional civil liquid fuel such as methanol, and is very suitable for occasions such as restaurants, hotels and families.
In order to better consider the high heat value, safety and cleanliness of the civil coal-based synthetic liquid fuel and make the civil coal-based synthetic liquid fuel have better convenience, in a preferred embodiment, the weight ratio of the coal-based liquid wax, the polymethoxy dimethyl ether, the dimethyl carbonate, the combustion improver and the pour point depressant in the civil coal-based synthetic liquid fuel is (90-95): (1-5): (2-5): (0.01-0.03): (0.05-0.1). The weight ratio is preferable, so that the cleaning property and the safety of the coal chemical product as liquid fuel are more facilitated. Meanwhile, the blending and improving effects of improving the combustion quality and the heat efficiency of the polymethoxy dimethyl ether and the dimethyl carbonate can be better exerted. On the basis of optimizing the main components of the liquid wax, the effects of eliminating smoke, supporting combustion and reducing the solidifying point of the fuel can be achieved by adding a small amount of combustion improver and pour point depressant, so that the cost is reduced, and the safety and cleanliness of the fuel are better ensured.
For the purpose of broadening the source of the fuel feedstock, the above-mentioned coal-based liquid waxes are preferably prepared by the Fischer-Tropsch reaction.
In order to enable a better adaptation of the coal-based liquid wax for use as fuel, in a preferred embodiment the coal-based liquid wax contains, in mass percent, 90-97% normal paraffins, less than 0.05% aromatics, and wherein sulfur is less than 1mg/kg. Wherein, more than 90 percent of normal alkane can provide excellent combustion heat value, and the low aromatic hydrocarbon concentration and the low sulfur concentration can better ensure that the fuel has lower sulfur emission in the combustion process, so that the fuel can better meet the requirements of clean energy and energy conservation and emission reduction.
In order to further improve the combustion performance of the domestic coal-based synthetic liquid fuel, preferably, the distillation range of the coal-based liquid wax is 180-310 ℃, the closed flash point is 70-80 ℃, and the condensation point is less than-5 ℃. The coal-based liquid wax with the preferable performance can provide higher flash point and lower condensation point for civil coal-based synthetic liquid fuel, so that the fuel meets the requirements of civil fuel.
The combustion improver may be selected as is conventional in the art, but in a preferred embodiment the combustion improver is ferrocene for the purpose of better enhancing the combustion performance of the fuel.
The pour point depressant may be selected as is conventional in the art, but in a preferred embodiment is one or more of poly (dodecyl methacrylate), poly (tetradecyl methacrylate), poly (hexadecyl methacrylate), poly (octadecyl methacrylate) for better function in lowering the freezing point of the fuel.
According to another aspect of the present invention, there is provided a method for preparing a domestic coal-based synthetic liquid fuel, comprising the steps of: mixing the coal-based liquid wax, the polymethoxy dimethyl ether, the dimethyl carbonate, the combustion improver and the pour point depressant, and stirring to obtain the civil coal-based synthetic liquid fuel. The fuel prepared by the method has high combustion heat value, full and stable combustion, basically generates no black smoke and no carbon deposit, and can meet the use requirement of civil fuel. Meanwhile, the fuel has higher flash point, is nonflammable under open flame, is clean and environment-friendly, and has better safety and cleanliness. Besides, the fuel gas can be stored, transported and used at normal temperature and normal pressure, a high-pressure steel cylinder is not needed, and the fuel gas is convenient to use. In a word, the civil coal-based clean fuel provided by the invention solves the problem that the existing civil fuel is difficult to consider high heat value and safety, cleanliness and convenience, can be used for replacing the traditional civil liquid fuel such as methanol, and is very suitable for occasions such as restaurants, hotels and families.
For the purpose of further simplifying the preparation flow of the domestic coal-based synthetic liquid fuel and reducing the production cost thereof, in a preferred embodiment, the preparation of the above domestic coal-based synthetic liquid fuel comprises the steps of: step S1, mixing a first part of coal-based liquid wax with polymethoxy dimethyl ether, and stirring to prepare a first mixed solution; step S2, mixing a second part of coal-based liquid wax with dimethyl carbonate, and stirring to prepare a second mixed solution; step S3, mixing and stirring a third part of coal-based liquid wax and a combustion improver to prepare a third mixed solution; step S4, mixing the fourth part of coal-based liquid wax with the pour point depressant, and stirring to obtain a pour point depressant mixed solution; and S5, mixing the fifth part of coal-based liquid wax with the first mixed solution, the second mixed solution, the third mixed solution and the pour point depressant mixed solution, and stirring to prepare the civil coal-based synthetic liquid fuel.
In order to further optimize the preparation flow of the civil coal-based synthetic liquid fuel, preferably, the fifth part of the coal-based liquid wax accounts for more than or equal to 50% of the mass ratio of the coal-based liquid wax.
The present application is described in further detail below in conjunction with specific embodiments, which should not be construed as limiting the scope of the claims.
Example 1:
the preparation method of the civil coal-based synthetic liquid fuel comprises the following steps:
step one, respectively weighing coal-based liquid wax, polymethoxy dimethyl ether, dimethyl carbonate, ferrocene and poly (dodecyl methacrylate) according to the mass ratio of 92:3:3:0.02:0.05 for later use;
step two, firstly adding coal-based liquid wax accounting for 50% of the total weight of the coal-based liquid wax into equipment for standby;
step three, taking coal-based liquid wax accounting for 10 percent of the total weight of the coal-based liquid wax, mixing the coal-based liquid wax with polymethoxy dimethyl ether, and uniformly stirring for later use;
step four, taking coal-based liquid wax accounting for 10 percent of the total weight of the coal-based liquid wax, mixing with dimethyl carbonate, and uniformly stirring for later use;
step five, taking coal-based liquid wax accounting for 10 percent of the total weight of the coal-based liquid wax to dissolve ferrocene, and uniformly stirring for later use;
step six, taking a coal-based liquid wax dissolution pour point depressant accounting for 20% of the total weight of the coal-based liquid wax, and uniformly stirring for later use;
adding the above mixed liquids into equipment, and stirring uniformly to obtain the civil coal-based synthetic liquid fuel.
Wherein the distillation range of the coal-based liquid wax is 180-300 ℃, the closed flash point is 75 ℃, the condensation point is-8 ℃, the normal alkane content is 92%, the sulfur content is 0.04mg/kg, and the aromatic hydrocarbon content is less than 0.03%.
Example 2:
the preparation method of the civil coal-based synthetic liquid fuel comprises the following steps:
step one, respectively weighing coal-based liquid wax, polymethoxy dimethyl ether, dimethyl carbonate, ferrocene and poly (dodecyl methacrylate) according to the mass ratio of 95:5:5:0.01:0.08 for later use;
step two, adding coal-based liquid wax accounting for 75% of the total weight of the coal-based liquid wax into equipment for standby;
step three, taking coal-based liquid wax accounting for 5% of the total weight of the coal-based liquid wax, mixing the coal-based liquid wax with polymethoxy dimethyl ether, and uniformly stirring for later use;
step four, taking coal-based liquid wax accounting for 5% of the total weight of the coal-based liquid wax, mixing with dimethyl carbonate, and uniformly stirring for later use;
step five, taking the coal-based liquid wax accounting for 5 percent of the total weight of the coal-based liquid wax to dissolve ferrocene, and uniformly stirring for later use;
step six, taking coal-based liquid wax accounting for 10 percent of the total weight of the coal-based liquid wax to dissolve the poly (dodecyl methacrylate), and uniformly stirring for later use;
adding the above mixed solution into equipment, and stirring to obtain the final product.
Wherein the distillation range of the coal-based liquid wax is 185-306 ℃, the closed flash point is 74 ℃, the condensation point is-6 ℃, the normal alkane content is 95%, the sulfur content is 0.03mg/kg, and the aromatic hydrocarbon content is less than 0.04%.
Example 3:
the preparation method of the civil coal-based synthetic liquid fuel comprises the following steps:
step one, respectively weighing coal-based liquid wax, polymethoxy dimethyl ether, dimethyl carbonate, ferrocene and poly (dodecyl methacrylate) according to the mass ratio of 90:1:2:0.03:0.1 for later use;
step two, firstly adding coal-based liquid wax accounting for 50% of the total weight of the coal-based liquid wax into equipment for standby;
step three, taking coal-based liquid wax accounting for 10 percent of the total weight of the coal-based liquid wax, mixing the coal-based liquid wax with polymethoxy dimethyl ether, and uniformly stirring for later use;
step four, taking coal-based liquid wax accounting for 10 percent of the total weight of the coal-based liquid wax, mixing with dimethyl carbonate, and uniformly stirring for later use;
step five, taking coal-based liquid wax accounting for 10 percent of the total weight of the coal-based liquid wax to dissolve ferrocene, and uniformly stirring for later use;
step six, taking a coal-based liquid wax dissolution pour point depressant accounting for 20% of the total weight of the coal-based liquid wax, and uniformly stirring for later use;
adding the above mixed liquids into equipment, and stirring uniformly to obtain the civil coal-based synthetic liquid fuel.
Wherein the distillation range of the coal-based liquid wax is 180-300 ℃, the closed flash point is 80 ℃, the condensation point is-8 ℃, the normal alkane content is 97%, the sulfur content is 0.04mg/kg, and the aromatic hydrocarbon content is less than 0.03%.
Example 4:
the preparation method of the civil coal-based synthetic liquid fuel comprises the following steps:
step one, respectively weighing coal-based liquid wax, polymethoxy dimethyl ether, dimethyl carbonate, ferrocene and poly (sixteen methacrylate) according to the mass part ratio of 92:3:3:0.02:0.05 for later use;
step two, firstly adding coal-based liquid wax accounting for 50% of the total weight of the coal-based liquid wax into equipment for standby;
step three, taking coal-based liquid wax accounting for 10 percent of the total weight of the coal-based liquid wax, mixing the coal-based liquid wax with polymethoxy dimethyl ether, and uniformly stirring for later use;
step four, taking coal-based liquid wax accounting for 10 percent of the total weight of the coal-based liquid wax, mixing with dimethyl carbonate, and uniformly stirring for later use;
step five, taking coal-based liquid wax accounting for 10 percent of the total weight of the coal-based liquid wax to dissolve ferrocene, and uniformly stirring for later use;
step six, taking a coal-based liquid wax dissolution pour point depressant accounting for 20% of the total weight of the coal-based liquid wax, and uniformly stirring for later use;
adding the above mixed liquids into equipment, and stirring uniformly to obtain the civil coal-based synthetic liquid fuel.
Wherein the distillation range of the coal-based liquid wax is 190-310 ℃, the closed flash point is 70 ℃, the condensation point is-8 ℃, the normal alkane content is 90%, the sulfur content is 0.09mg/kg, and the aromatic hydrocarbon content is less than 0.05%.
Comparative example 1:
the civil alcohol-based liquid fuel comprises the components of methanol, acetone, petroleum ether, sodium salicylate, polyoxyethylene ester and hydrogen peroxide in a mass part ratio of 75:15:1:3:0.5:5, and has a detected heat value of 22550J/kg.
Comparative example 2:
a civil alcohol-based liquid fuel comprises the components of methanol, deionized water, methylal, hydrogen peroxide and ferrocene according to the mass ratio of 80:25:7:0.1:0.01, and the detected heat value is 18542J/kg.
Test conditions:
combustion heat value: the liquid fuels prepared in the above examples 1 to 4 were detected by an oxygen bomb calorimeter, and the detected fuel calorific values were 4890J/kg, 45372J/kg, 44018J/kg and 44916J/kg, respectively. Can meet the requirements of market domestic fuel and is higher than the heat value of the prior alcohol-based fuel (comparative examples 1-2).
From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:
the coal-based synthetic liquid fuel has high combustion heat value, full and stable combustion, basically generates no black smoke and no carbon deposit, and can meet the use requirement of civil fuel. Meanwhile, the fuel has higher flash point, is nonflammable under open flame, is clean and environment-friendly, and has better safety and cleanliness. Besides, the fuel gas can be stored, transported and used at normal temperature and normal pressure, a high-pressure steel cylinder is not needed, and the fuel gas is convenient to use. In a word, the civil coal-based clean fuel provided by the invention solves the problem that the existing civil fuel is difficult to consider high heat value and safety, cleanliness and convenience, can be used for replacing the traditional civil liquid fuel such as methanol, and is very suitable for occasions such as restaurants, hotels and families.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The civil coal-based synthetic liquid fuel is characterized by comprising coal-based liquid wax, polymethoxy dimethyl ether, dimethyl carbonate, a combustion improver and a pour point depressant; the coal-based liquid wax comprises 90-97% of normal alkane and less than 0.05% of aromatic hydrocarbon in percentage by mass, wherein sulfur is less than 1mg/kg; the distillation range of the coal-based liquid wax is 180-310 ℃, the closed flash point is 70-80 ℃, and the condensation point is less than-5 ℃; in the civil coal-based synthetic liquid fuel, the weight ratio of the coal-based liquid wax to the polymethoxy dimethyl ether to the dimethyl carbonate to the combustion improver to the pour point depressant is (90-95): (1-5): (2-5): (0.01 to 0.03): (0.05 to 0.1).
2. The domestic coal-based synthetic liquid fuel of claim 1, wherein the coal-based liquid wax is produced by a fischer-tropsch reaction.
3. The domestic coal-based synthetic liquid fuel of claim 1 or 2, wherein the combustion improver is ferrocene.
4. The domestic coal-based synthetic liquid fuel of claim 1 or 2, wherein the pour point depressant is one or more of poly (dodecyl methacrylate), poly (tetradecyl methacrylate), poly (hexadecyl methacrylate), poly (octadecyl methacrylate).
5. A method for preparing a synthetic liquid fuel based on domestic coal as claimed in any one of claims 1 to 4, comprising the steps of: mixing the coal-based liquid wax, the polymethoxy dimethyl ether, the dimethyl carbonate, the combustion improver and the pour point depressant, and stirring to obtain the civil coal-based synthetic liquid fuel.
6. The method for preparing a civil coal-based synthetic liquid fuel according to claim 5, comprising the steps of:
step S1, mixing a first part of coal-based liquid wax with the polymethoxy dimethyl ether, and stirring to prepare a first mixed solution;
step S2, mixing a second part of coal-based liquid wax with the dimethyl carbonate, and stirring to prepare a second mixed solution;
step S3, mixing a third part of coal-based liquid wax with the combustion improver, and stirring to prepare a third mixed solution;
step S4, mixing the fourth part of coal-based liquid wax with the pour point depressant, and stirring to obtain a pour point depressant mixed solution;
and S5, mixing and stirring a fifth part of coal-based liquid wax with the first mixed solution, the second mixed solution, the third mixed solution and the pour point depressant mixed solution to prepare the civil coal-based synthetic liquid fuel.
7. The method for preparing a civil coal-based synthetic liquid fuel according to claim 6, wherein the fifth portion of the coal-based liquid wax accounts for not less than 50% by mass of the coal-based liquid wax.
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| US20100005707A1 (en) * | 2008-07-09 | 2010-01-14 | Eberhard Jacob | Low-soot diesel fuels comprising a fuel additive, use thereof and the use of the fuel additive for producing low-soot diesel fuels |
| CN112961713A (en) * | 2021-02-08 | 2021-06-15 | 四川新源素能源有限公司 | Liquid fuel with high flash point, high calorific value and high safety coefficient for catering furnaces |
| CN113337314A (en) * | 2021-04-27 | 2021-09-03 | 贵州鑫强环保燃料有限公司 | Preparation method of biodiesel blending fuel |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100005707A1 (en) * | 2008-07-09 | 2010-01-14 | Eberhard Jacob | Low-soot diesel fuels comprising a fuel additive, use thereof and the use of the fuel additive for producing low-soot diesel fuels |
| CN112961713A (en) * | 2021-02-08 | 2021-06-15 | 四川新源素能源有限公司 | Liquid fuel with high flash point, high calorific value and high safety coefficient for catering furnaces |
| CN113337314A (en) * | 2021-04-27 | 2021-09-03 | 贵州鑫强环保燃料有限公司 | Preparation method of biodiesel blending fuel |
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