Hydrogen fuel engine oil composite additive composition and hydrogen fuel engine oil composition

Abstract

The invention discloses a hydrogen fuel engine oil composite additive composition which comprises the following components in percentage by weight: 3.0 to 5.0 percent of magnesium sulfonate with high base number, 12.0 to 20.0 percent of calcium sulfonate with low base number, 3.0 to 4.0 percent of sulfurized calcium alkyl phenolate with high base number, 2.0 to 5.0 percent of amine type antioxidant, 2.0 to 5.0 percent of phenol type antioxidant, 2.0 to 5.0 percent of alpha-naphthylamine, 1.5 to 3.0 percent of dibutyl dithiocarbamate, 1.5 to 3.0 percent of antiwear agent, 0.2 to 0.5 percent of fatty amide and the balance of ashless dispersant. The invention also discloses a hydrogen fuel engine oil composition which comprises 14.4-15.5% of the composite additive composition, 7.0-9.0% of a viscosity index agent, 0.2-0.5% of a pour point depressant and the balance of base oil. The composite additive provided by the invention improves the demulsification performance of the hydrogen fuel engine oil under high temperature and high pressure conditions, and further improves the water separation performance and other comprehensive use performance of the oil product.

Description

Technical Field

[0001] The invention belongs to the technical field of engine oil additives, and in particular relates to a hydrogen fuel engine oil composite additive composition, and also relates to a hydrogen fuel engine oil composition. Background Art

[0002] Hydrogen energy has many advantages such as high combustion calorific value, clean and pollution-free, convenient storage and transportation, wide sources, and multiple forms of utilization. It plays a very important supporting role in reducing carbon emissions and is a new clean fuel that will be equally important as electric vehicles in the future. The high heat and high proportion of water generated by hydrogen combustion will inevitably put forward higher requirements for engine oil's anti-oxidation, anti-nitration, anti-rust, and anti-wear performance. At present, there are no commercial lubricating oil products and product standards for hydrogen fuel engines at home and abroad. The joint development of special oils for hydrogen fuel engines with domestic OEMs can lead the development of the industry while ensuring the steady growth of hydrogen fuel engines.

[0003] In order to solve the stringent requirements of hydrogen fuel engine oil on water separation performance, emulsification performance, rust prevention, oxidation resistance and wear resistance under low sulfated ash conditions, a hydrogen fuel engine oil composite was successfully developed. It was applied to API II and III base oils. The blended hydrogen fuel engine oil has a 50% increase in water separation performance, 18% increase in anti-wear performance, and 23% increase in anti-corrosion performance compared to traditional gas engine oils, which can meet the lubrication requirements of hydrogen fuel engines. Summary of the invention

[0004] The purpose of the present invention is to provide a composite additive composition for hydrogen fuel engine oil, which improves the demulsification performance and anti-wear durability of hydrogen fuel engine oil under high temperature and high pressure conditions.

[0005] Another object of the present invention is to provide a hydrogen fuel engine oil composition which can improve the water separation performance and corrosion resistance of the engine oil.

[0006] The technical scheme adopted by the present invention is that the composite additive composition for hydrogen fuel engine oil includes the following components by mass percentage: 3.0-5.0% of high-base magnesium sulfonate, 12.0-20.0% of low-base calcium sulfonate, 3.0-4.0% of high-base sulfurized alkylphenol calcium, 2.0-5.0% of amine antioxidant, 2.0-5.0% of phenol antioxidant, 2.0-5.0% of α-naphthylamine, 1.5-3.0% of dibutyl dithiocarbamate, 1.5-3.0% of ester anti-wear agent, 0.2-0.5% of fatty amide, and the balance is a polymer ashless dispersant, and the sum of the mass percentages of the above components is 100%.

[0007] The present invention is also characterized in that:

[0008] The alkalinity of high-alkalinity magnesium sulfonate is 395-420 mgKOH / g, and the high-alkalinity magnesium sulfonate is T107; the alkalinity of low-alkalinity calcium sulfonate is 20-35 mgKOH / g, and the low-alkalinity calcium sulfonate is T104; the alkalinity of high-alkalinity sulfurized alkylphenol calcium is 245-265 mgKOH / g, and the high-alkalinity sulfurized alkylphenol calcium is T115B.

[0009] The polymer ashless dispersant is succinimide T161A; the amine antioxidant is hindered phenol ester RHY505; and the phenol antioxidant is butyl octyl diphenylamine RHY057.

[0010] The α-naphthylamine is N-phenyl-α-naphthylamine; the carbamate is dibutyl dithiocarbamate; the ester anti-wear agent is a sulfurized organic carboxylic acid ester; and the fatty amide is a condensate of tall oil fatty amide or amine and ethylene oxide.

[0011] Another technical solution adopted by the present invention is that the hydrogen fuel engine oil composition comprises the following components by mass percentage: 14.4-15.5% of the hydrogen fuel engine oil composite additive composition according to claim 1 or 2, 7.0-9.0% of an OCP type viscosity modifier, 0.2-0.5% of a PMA type pour point depressant, and the remainder is base oil, and the sum of the mass percentages of the above components is 100%.

[0012] The beneficial effects of the present invention are:

[0013] First, the metal detergent system composed of high-base magnesium sulfonate, low-base calcium sulfonate and high-base sulfurized alkylphenol calcium in the present invention can solve the problem of reduced cleaning performance of hydrogen fuel engines due to water generated after hydrogen combustion;

[0014] Second, the antioxidant and cleaning system composed of high-base magnesium sulfonate, low-base calcium sulfonate, high-base sulfurized alkylphenol calcium, amine-type, phenol-type and a-naphthylamine antioxidants in the present invention can solve the problems of high-temperature oxidation and aging of hydrogen fuel engine oil caused by hydrogen combustion and inhibit the formation of piston deposits;

[0015] Third, the anti-wear-dispersion system composed of high-base magnesium sulfonate, low-base calcium sulfonate, high-base sulfurized alkylphenol calcium, polymer ashless dispersant, amine-type, phenol-type and a-naphthylamine antioxidants, dibutyl dithiocarbamate and sulfurized organic carboxylic acid ester anti-wear agent in the present invention realizes the anti-wear and durability performance of hydrogen fuel engine oil under conditions of high water content, high pressure and high load;

[0016] Fourth, the composite additive system of the present invention, which is composed of high-alkalinity magnesium sulfonate, low-alkalinity calcium sulfonate, high-alkalinity sulfurized alkylphenol calcium, polymer ashless dispersant, amine-type, phenol-type and α-naphthylamine antioxidants, dibutyl dithiocarbamate, sulfurized organic carboxylic acid ester anti-wear agent and fatty amide, improves the demulsification performance of hydrogen fuel engine oil containing high water content under high temperature, high pressure and other conditions, and further improves the water separation and other comprehensive performance of the oil. DETAILED DESCRIPTION

[0017] The present invention is described in detail below in conjunction with specific implementation modes.

[0018] The composite additive composition for hydrogen fuel engine oil of the present invention comprises the following components by mass percentage: 3.0-5.0% of high-base magnesium sulfonate, 12.0-20.0% of low-base calcium sulfonate, 3.0-4.0% of high-base sulfurized alkyl phenol calcium, 2.0-5.0% of amine antioxidant, 2.0-5.0% of phenol antioxidant, 2.0-5.0% of α-naphthylamine, 1.5-3.0% of dibutyl dithiocarbamate, 1.5-3.0% of ester anti-wear agent, 0.2-0.5% of fatty amide, and the balance is a high molecular ashless dispersant, and the sum of the mass percentages of the above components is 100%.

[0019] Preferably, the composition comprises the following components by mass percentage: 3.6-4.5% of high base magnesium sulfonate, 14.0-18.0% of low base calcium sulfonate, 3.3-3.8% of high base sulfurized alkyl phenol calcium, 3.0-4.0% of amine antioxidant, 3.0-4.0% of phenol antioxidant, 3.0-4.0% of α-naphthylamine, 2.0-2.6% of dibutyl dithiocarbamate, 1.3-1.7% of ester anti-wear agent, 0.3-0.4% of fatty amide, and the remainder is high molecular ashless dispersant, and the sum of the mass percentages of the above components is 100%.

[0020] The base number of the overbased magnesium sulfonate is 395-420 mgKOH / g, and the overbased magnesium sulfonate is T107;

[0021] The base value of low-base calcium sulfonate is 20-35 mgKOH / g, and the low-base calcium sulfonate is T104;

[0022] The base value of high base value sulfurized alkyl phenol calcium is 245-265 mgKOH / g, and the high base value sulfurized alkyl phenol calcium is T115B;

[0023] The polymer ashless dispersant is succinimide T161A; the amine antioxidant is hindered phenol ester RHY505; the phenol antioxidant is butyl octyl diphenylamine RHY057; the α-naphthylamine is N-phenyl-a-naphthylamine; the carbamate is dibutyl dithiocarbamate; the ester anti-wear agent is sulfurized organic carboxylic acid ester; the fatty amide is tall oil fatty amide or amine and ethylene oxide condensate.

[0024] The preparation method of the hydrogen fuel engine oil composite additive composition of the present invention can be obtained by uniformly mixing the raw materials according to the above composition. The present invention does not specifically limit the order of adding the raw materials, the stirring rate, and the mixing temperature.

[0025] The hydrogen fuel engine oil composite additive composition of the present invention is compounded by high basic magnesium sulfonate, low basic calcium sulfonate, high basic sulfurized alkylphenol calcium, polymer ashless dispersant, amine type and phenol type antioxidants, α-naphthylamine, dibutyl dithiocarbamate, ester anti-wear agent and fatty amide, so that the performance of each component is organically coordinated, and a hydrogen fuel engine oil with better water separation, demulsification, high temperature detergency, oxidation resistance, nitration resistance, dispersibility and wear resistance is obtained under the condition of lower sulfate ash content.

[0026] The hydrogen fuel engine oil composition of the present invention comprises the following components by mass percentage: 14.4-15.5% of the hydrogen fuel engine oil composite additive composition, 7.0-9.0% of the OCP type viscosity modifier, 0.2-0.5% of the PMA type pour point depressant, and the balance is base oil, and the sum of the mass percentages of the above components is 100%.

[0027] The base oil is APIⅡ and APIⅢ base oil;

[0028] The preparation method of the hydrogen fuel engine oil composition of the present invention can be obtained by uniformly mixing the raw materials according to the above composition. The present invention does not specifically limit the order of adding the raw materials, the stirring rate, and the mixing temperature.

[0029] The hydrogen fuel engine oil composite additive composition of the present invention can be added to API II and III base oils, and after being mixed with an OCP viscosity index improver and a PMA pour point depressant, the hydrogen fuel engine oil prepared at a certain dosage has a water separation performance improved by 50%, an anti-wear performance improved by 18%, and an anti-corrosion performance improved by 23% compared with traditional diesel engine oil, and can meet the lubrication requirements of hydrogen fuel engines.

[0030] Example 1

[0031] The hydrogen fuel engine oil composition of the present invention has the following component contents:

[0032]

[0033]

[0034] Example 2

[0035] The hydrogen fuel engine oil composition of the present invention has the following component contents:

[0036]

[0037]

[0038] Example 3

[0039] The hydrogen fuel engine oil composition of the present invention has the following component contents:

[0040]

[0041]

[0042] Example 4

[0043] The hydrogen fuel engine oil composition of the present invention has the following component contents:

[0044]

[0045] In order to test the performance of the hydrogen fuel engine oil composite additive composition, the hydrogen fuel engine oil composite additive composition, OCP viscosity index agent, PMA pour point depressant were applied to API II and III base oils, and the blended test oil was tested (the comparative example was commercially available gas engine oil). The specific results are shown in Table 1;

[0046] Table 1 Oil performance test results

[0047]

[0048] It can be seen from the above table that the oil products blended in Examples 1 to 4 have slightly different performances in terms of anti-oxidation, anti-wear, cleanliness and dispersibility, while the water separation and emulsification performance of Example 3 is more excellent. Compared with commercially available gas engine oil, the oil product has a water separation performance of 50%, an anti-wear performance of 18%, and an anti-corrosion performance of 23%, which can meet the lubrication requirements of hydrogen fuel engines.

Claims

1. A composite additive composition for hydrogen fuel engine oil, characterized in that: The invention comprises the following components by mass percentage: 3.0-5.0% of high alkalinity magnesium sulfonate, 12.0-20.0% of low alkalinity calcium sulfonate, 3.0-4.0% of high alkalinity sulfurized alkyl phenol calcium, 2.0-5.0% of amine antioxidant, 2.0-5.0% of phenol antioxidant, 2.0-5.0% of α-naphthylamine, 1.5-3.0% of dibutyl dithiocarbamate, 1.5-3.0% of ester anti-wear agent, 0.2-0.5% of fatty amide, and the balance is high molecular ashless dispersant. The sum of the mass percentages of the above components is 100%.

2. The hydrogen fuel engine oil additive package composition according to claim 1, characterized in that: The invention comprises the following components by mass percentage: 3.6-4.5% of high alkalinity magnesium sulfonate, 14.0-18.0% of low alkalinity calcium sulfonate, 3.3-3.8% of high alkalinity sulfurized alkyl phenol calcium, 3.0-4.0% of amine antioxidant, 3.0-4.0% of phenol antioxidant, 3.0-4.0% of α-naphthylamine, 2.0-2.6% of dibutyl dithiocarbamate, 1.3-1.7% of ester anti-wear agent, 0.3-0.4% of fatty amide, and the balance is high molecular ash-free dispersant. The sum of the mass percentages of the above components is 100%.

3. The hydrogen fuel engine oil additive package composition according to claim 1 or 2, characterized in that: The alkalinity of the high alkalinity magnesium sulfonate is 395-420 mgKOH / g, and the high alkalinity magnesium sulfonate is T107; the alkalinity of the low alkalinity calcium sulfonate is 20-35 mgKOH / g, and the low alkalinity calcium sulfonate is T104; the alkalinity of the high alkalinity sulfurized alkylphenol calcium is 245-265 mgKOH / g, and the high alkalinity sulfurized alkylphenol calcium is T115B.

4. The hydrogen fuel engine oil additive package composition according to claim 1 or 2, characterized in that: The polymer ashless dispersant is succinimide T161A; the amine antioxidant is hindered phenol ester RHY505; and the phenol antioxidant is butyl octyl diphenylamine RHY057.

5. The hydrogen fuel engine oil additive package composition according to claim 1 or 2, characterized in that: The α-naphthylamine is N-phenyl-α-naphthylamine; the carbamate is dibutyl dithiocarbamate; the ester anti-wear agent is a sulfurized organic carboxylic acid ester; and the fatty amide is a condensate of tall oil fatty amide or amine and ethylene oxide.

6. A hydrogen fuel engine oil composition, characterized in that: The components include the following by mass percentage: The hydrogen fuel engine oil composite additive composition of claim 1 or 2 comprises 14.4-15.5%, 7.0-9.0% of an OCP viscosity modifier, 0.2-0.5% of a PMA pour point depressant, and the remainder is base oil, the sum of the mass percentages of the above components being 100%.

7. The hydrogen fuel engine oil composition according to claim 6, characterized in that: The base oil is API II and API III base oil.

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