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CN-122012147-A - High-stability composite additive of M100 green methanol fuel for vehicles and ships and preparation method and application thereof

CN122012147ACN 122012147 ACN122012147 ACN 122012147ACN-122012147-A

Abstract

The invention relates to the field of clean energy additives, in particular to a high-stability composite additive of M100 green methanol fuel for vehicles and ships, and a preparation method and application thereof, wherein the composite additive comprises tetrahydrodicyclopentadiene or decalin; xylene; C12-C16 isoparaffins; triethanolamine oleate; ethylene glycol dimer acid ester; benzotriazole; isooctyl nitrate; dimethyl carbonate; nano cerium oxide; a terminal polyetheramine; 2, 6-di-tert-butyl-p-cresol; octyl butyl diphenylamine; triethylhydroxylamine; propylene glycol methyl ether; isobutanol; an ether modifier; polyethylene glycol dimethyl ether; sorbitan monostearate; an alkylate; the composite additive has the advantages of green high heat value, good stability, vehicle satisfaction and high temperature stability at the temperature of 60 ℃ and is ensured by a ship, and the cold start is carried out at the temperature of 25 ℃.

Inventors

  • LI YUMIN
  • LI HANCHAO

Assignees

  • 深圳蓝诺清洁能源科技有限公司

Dates

Publication Date
20260512
Application Date
20260324

Claims (7)

  1. 1. The high-stability composite additive of the M100 green methanol fuel for the vehicles and the ships is characterized by comprising the following components in parts by weight: 8-12 parts of tetrahydrodicyclopentadiene or decalin, 7-10 parts of dimethylbenzene, 30-40 parts of C12-C16 isoparaffin, 4-10 parts of triethanolamine oleate, 4-6 parts of ethylene glycol dimer acid ester, 0.005-0.015 part of benzotriazole, 3-5 parts of isooctyl nitrate, 0.1-0.5 part of dimethyl carbonate, 3-4.5 parts of nano cerium dioxide, 0.2-0.5 part of polyether amine, 0.2-0.4 part of 2, 6-di-tert-butyl-p-cresol, 0.1-0.2 part of octyl butyl diphenylamine, 0.05-0.1 part of triethylhydroxylamine, 4-7 parts of propylene glycol methyl ether, 3-6 parts of isobutanol, 1.5-3 parts of ether modifier, 3-5 parts of polyethylene glycol dimethyl ether, 2-4 parts of sorbitol monostearate and 0.05-0.5 part of alkyl oil, wherein the ether modifier is at least one of tert-butyl ether or ethylene glycol tert-butyl ether.
  2. 2. The high-stability composite additive of M100 green methanol fuel for vehicles and ships according to claim 1, which is characterized by comprising the following components in parts by weight: 9-11 parts of tetrahydrodicyclopentadiene or decalin, 8-10 parts of dimethylbenzene, 33-38 parts of C12-C16 isoparaffin, 8-10 parts of triethanolamine oleate, 4.5-5.5 parts of ethylene glycol dimer acid, 0.008-0.012 part of benzotriazole, 3.8-4.5 parts of isooctyl nitrate, 0.3-0.6 part of dimethyl carbonate, 3.2-3.8 parts of nano cerium oxide, 0.25-0.35 part of polyether amine, 0.25-0.35 part of 2, 6-di-tert-butyl-p-cresol, 0.12-0.18 part of octyl butyl diphenylamine, 0.04-0.06 part of triethylhydroxylamine, 5-7 parts of propylene glycol methyl ether, 4-6 parts of isobutanol, 1.8-2.2 parts of ethylene glycol tert-butyl ether, 3.5-4.5 parts of polyethylene glycol dimethyl ether, 2.5-3.5 parts of sorbitan monostearate and 0.3-0.7 part of alkylate.
  3. 3. The high-stability composite additive of M100 green methanol fuel for vehicles and ships according to claim 2, which is characterized by comprising the following components in parts by weight: 10 parts of tetrahydrodicyclopentadiene, 9 parts of dimethylbenzene, 36.5 parts of C12-C16 isoparaffin, 9.5 parts of triethanolamine oleate, 5 parts of ethylene glycol dimer acid, 0.01 part of benzotriazole, 4.2 parts of isooctyl nitrate, 0.5 part of dimethyl carbonate, 3.5 parts of nano cerium dioxide, 0.3 part of polyether amine, 0.3 part of 2, 6-di-tert-butyl-p-cresol, 0.15 part of octyl butyl diphenylamine, 0.05 part of triethylhydroxylamine, 6.5 parts of propylene glycol methyl ether, 5 parts of isobutanol, 2 parts of ethylene glycol tert-butyl ether, 4 parts of polyethylene glycol dimethyl ether, 3 parts of sorbitan monostearate and 0.5 part of alkylate.
  4. 4. The high-stability composite additive of M100 green methanol fuel for vehicles and ships according to claim 1, which is characterized by comprising the following components in parts by weight: 9-11 parts of tetrahydrodicyclopentadiene or decalin, 6-8 parts of dimethylbenzene, 38-42 parts of C12-C16 isoparaffin, 8-9 parts of triethanolamine oleate, 5.2-5.8 parts of ethylene glycol dimer acid, 0.008-0.012 part of benzotriazole, 3.5-4.2 parts of isooctyl nitrate, 0.1-0.3 part of dimethyl carbonate, 3.8-4.3 parts of nano cerium oxide, 0.25-0.35 part of polyether amine, 0.25-0.35 part of 2, 6-di-tert-butyl-p-cresol, 0.15-0.25 part of octyl butyl diphenylamine, 0.04-0.06 part of triethylhydroxylamine, 5-7 parts of propylene glycol methyl ether, 3-5 parts of isobutanol, 2.3-2.7 parts of ethylene glycol tert-butyl ether, 4.5-5.5 parts of polyethylene glycol dimethyl ether, 1.5-2.5 parts of sorbitan monostearate and 0.3-0.6 part of alkylate.
  5. 5. The high-stability composite additive for M100 green methanol fuel for vehicles and ships according to claim 4, which is characterized by comprising the following components in parts by weight: 10 parts of tetrahydrodicyclopentadiene, 7 parts of dimethylbenzene, 40 parts of C12-C16 isoparaffin, 8.5 parts of triethanolamine oleate, 5.5 parts of ethylene glycol dimer acid ester, 0.01 part of benzotriazole, 4 parts of isooctyl nitrate, 0.2 part of dimethyl carbonate, 4 parts of nano cerium dioxide, 0.3 part of polyether amine, 0.3 part of 2, 6-di-tert-butyl-p-cresol, 0.2 part of octyl butyl diphenylamine, 0.05 part of triethylhydroxylamine, 6 parts of propylene glycol methyl ether, 4 parts of isobutanol, 2.5 parts of ethylene glycol tert-butyl ether, 5 parts of polyethylene glycol dimethyl ether, 2 parts of sorbitan monostearate and 0.45 part of alkylate.
  6. 6. A method for preparing the high-stability composite additive of M100 green methanol fuel for vehicles and ships according to any one of claims 1 to 5, which is characterized by comprising the following steps: s1, mixing C12-C16 isoparaffin, dimethylbenzene, tetrahydrodicyclopentadiene or decalin, and stirring for 10-15 minutes at 500-600 r/min to obtain a base material; s2, maintaining stirring, adding propylene glycol methyl ether, isobutanol, an ether modifier and polyethylene glycol dimethyl ether, and stirring for 5-8 minutes; s3, rotating the speed to 400-500 r/min, adding triethanolamine oleate, glycol dimer acid and benzotriazole, and stirring for 8-10 minutes; s4, sequentially adding isooctyl nitrate, dimethyl carbonate, nano cerium dioxide, polyether amine, alkylate and sorbitan monostearate, and stirring for 12-15 minutes at 500-600 r/min; and S5, finally adding 2, 6-di-tert-butyl-p-cresol, octyl butyl diphenylamine and triethylhydroxylamine, stirring for 5 minutes, standing for 20-30 minutes, and degassing to obtain the composite additive.
  7. 7. The application of the high-stability composite additive of the M100 green methanol fuel for vehicles and ships is characterized in that the high-stability composite additive of claim 2 or 3 is added into the M100 methanol fuel to be used as the vehicle methanol fuel, and the addition amount of the composite additive is 5-6% of the mass of the M100 methanol fuel; or, adding the high-stability composite additive according to claim 4 or 5 into M100 methanol fuel to be used as marine methanol fuel, wherein the adding amount of the composite additive is 6-8% of the mass of the M100 methanol fuel.

Description

High-stability composite additive of M100 green methanol fuel for vehicles and ships and preparation method and application thereof Technical Field The invention relates to the technical field of clean energy additives, in particular to a high-stability composite additive of M100 green methanol fuel for vehicles and ships, and a preparation method and application thereof. Background The large-scale and commercial application of M100 methanol fuel in two fields of vehicles and ships has been fully accelerated. In the field of vehicles, tap enterprises such as China petroleum and the like are built and operate dozens of M100 methanol filling stations in Guizhou provinces, shanxi provinces, liaoning provinces, heilongjiang provinces and the like, so that a regional service network is formed, the daily sales volume is stabilized at dozens of tons, and market promotion is developed. Vehicle operation data show that the problem of low-temperature starting of the M100 methanol automobile in a cold region (such as Heilongjiang) is solved, and the operation is stable. In the field of ships, commercial applications realize important breakthroughs. The method has the advantages that the green methanol produced in China is successfully filled into the first-system methanol power container ship in 2025 and 7 months, and the whole process of production, transportation, filling and use is realized. Management departments such as Shandong maritime bureau have issued special management methods, provide a standardized supervision framework for novel fuel water filling operations including methanol (alcohol fuel), and clear safety operation barriers. However, the direct application of M100 fuel still has inherent technical bottlenecks, and the performance requirements of the vehicle and ship scenes are obviously different, namely, the low heat value (about 22.7 MJ/kg, only 54% of diesel oil) leads to insufficient engine power and short endurance mileage, particularly restricts the high-load endurance of ships, the strong corrosiveness, the strong chemical and electrochemical corrosion effects of methanol and combustion products thereof on metal parts and rubber sealing parts of an engine fuel system, the poor compatibility with high-energy hydrocarbon additives, the difficulty in forming a stable homogeneous system between hydrocarbon components and polar methanol for improving the heat value, the easiness in layering and turbidity, the narrow temperature adaptability, and the insufficient long-term storage stability, particularly the easiness in oxidation generation of acidic substances under high water content or high temperature (such as a ship cabin environment), and the aggravation of corrosion and the generation of colloid. The prior additive technology adopts the simple compounding of functional components, is difficult to systematically solve the contradiction that part of products depend on polycyclic aromatic hydrocarbon such as naphthalene and the like to improve the heat value, has certain effects, but has potential limitations of environmental toxicity, combustion carbon deposition risks and international environmental protection regulations (such as IMO and REACH), is contrary to the sustainable development of green methanol, is mostly a single metal corrosion inhibitor in corrosion protection, lacks a synergistic and long-acting protection system aiming at frequent cold and hot start and stop of a vehicle and high-temperature, high-humidity and high-salt environments for a ship, lacks an effective solution to the compatibility problem of high-proportion nonpolar components and methanol in stability, and is difficult to ensure long-term uniform stability of the products in a full-temperature range of-25 ℃ to 60 ℃. The defects severely restrict the large-scale market application of the high-performance M100 green methanol fuel, and form a clear drop with the current strong policy driving and market demands. Therefore, aiming at different application scenes of vehicles and ships, development of a composite additive which can thoroughly abandon environmental disputes components, has high heat value, strong corrosion protection and ultra-wide temperature range stability and is fully compliant is needed to unlock the full potential of M100 green methanol fuel, respond to national strategy and occupy international market share. Disclosure of Invention The invention aims to provide a high-stability composite additive of M100 green methanol fuel for vehicles and ships, which has a high closed flash point (more than or equal to 62 ℃), meets the cold start of-25 ℃ for the vehicles, ensures the high-temperature stability of 60 ℃ for the ships, has the corrosion rate of less than or equal to 0.0009 mm/a and has the rubber swelling rate of less than or equal to 2.0 percent. The addition of 5% -8% can raise the calorific value of M100 fuel by 11% -14%, and has the advantages of super-strong corrosion protection, stable wide t