High-pressure-charging long-service-life diesel engine oil and manufacturing method thereof

A diesel engine oil, long-life technology, applied in the petroleum industry, lubricating compositions, etc., can solve the problems of poor high temperature performance of viscosity index improvers, unfavorable oil cleanliness and oxidation resistance, and reduced diesel vehicle pressure, etc. Achieve excellent high temperature detergency, inhibit the generation of carbon deposits and paint films, and prolong the oil change interval.

CN106883918AActive Publication Date: 2017-06-23YANTAI HENGBANG CHEM
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2017-06-23

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Abstract

The invention provides a high-pressure-charging long-service-life diesel engine oil which comprises the following components in percentage by weight: 80-90% of base oil and 10-20% of additive. The base oil comprises 72-80% of paraffin base Type II or Type III, 3-6% of high-viscosity poly-alpha-olefin of which the viscosity is 100-300 mm<2> / s at 100 DEG C and 1-3% of ester oil. The additive comprises 1-3% of hyperalkaline calcium sulfonate, 7-10% of polyisobutylene polysuccimide, 1-3% of sulfurized calcium alkyl phenate, 1-3% of sulfur / phosphorus bis octyl alkaline octyl salt, 0.001-0.005% of oil-soluble graphene, 0.3-1% of amine high-temperature antioxidant, 0.1-0.3% of pour-point depressant and 0.001-0.002% of composite defoaming agent. The diesel engine oil has the advantages of excellent high temperature detergency, excellent acid neutralizing capacity and rust resistance, is capable of effectively reducing high-temperature deposits on engine components and prolonging the oil change period, can inhibit the carbon deposits and paint film on the engine piston from generation, can form a complex micelle with a metallic detergent, has the characteristics of excellent consonance effect, excellent heat stability and outstanding abrasion resistance.
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Description

technical field

[0001] The invention belongs to the field of chemical industry, and in particular relates to a high-pressure and long-life diesel engine oil and a preparation method thereof. Background technique

[0002] With the improvement of refining technology, the output of Group II and Group III base oils is getting higher and higher worldwide. It has become a trend to use Group II and Group III base oils to blend high-performance diesel engine oils. However, base oils increase with the refining depth , while the performance is improved, the solubility is greatly reduced, especially for paraffin-based base oils. In order to achieve qualified low-temperature performance, it is often necessary to add 5% to 10% viscosity index improvers, and viscosity index improvers are all It is composed of substances with high viscosity and high molecular weight. Under the high temperature and high shear of the internal combustion engine, the viscosity tends to gradually decrease, whic...

Examples

Embodiment 1

[0019] Embodiment 1: A kind of diesel engine oil of high pressurization and long life, prepare paraffin base type II 500N 928kg, viscosity is 100mm under 100 ℃ 2 / s Polyalphaolefin (150) 48kg, Polyester PriEco (4035) 24kg, Superbasic Calcium Sulfonate 20kg, Polyisobutylene Polysuccinimide 80kg, Sulfurized Calcium Alkylphenate 15kg, Phosphobisoctyl Base 15kg of octyl salt, 0.01kg of oil-soluble graphene, 3kg of amine-type high-temperature antioxidant, 1kg of polymethacrylate depressant, and 0.01kg of composite antifoaming agent;

[0020] Production method: put 500N, polyalphaolefin (150), polyester PriEco (4035) into the reaction kettle, heat up to 60°C-70°C, stir for 10 minutes, then put in superbasic calcium sulfonate, sulfurized alkylphenol in turn Calcium, polyisobutylene polysuccinimide, amine-type high-temperature antioxidant, polymethacrylate, thiophosphobisoctyl basic octyl salt, composite antifoaming agent, oil-soluble graphene, constant temperature 60°C-70°C Stir for...

Embodiment 2

[0023] Embodiment 2: A kind of diesel engine oil with high supercharging and long life, prepare paraffin base III type 650N 915kg, the viscosity is 300mm under 100 ℃ 2 / s polyalphaolefin (200) 80kg, trimethylolpropane oleate 5kg, superbasic calcium sulfonate 22kg, polyisobutylene polysuccinimide 85kg, sulfurized alkylphenate calcium 13kg, thiophosphobioctine 15kg basic octyl salt, 0.01kg oil-soluble graphene, 4kg amine high temperature antioxidant, 1kg polymethacrylate pour point depressant, 0.013kg composite antifoaming agent;

[0024] Production method: put 650N, polyalphaolefin (200), trimethylolpropane oleate into the reaction kettle, raise the temperature to 60°C-70°C and stir for 10 minutes, then put in superbasic calcium sulfonate, sulfurized alkyl Calcium phenate, polyisobutylene polysuccinimide, amine-type high-temperature antioxidant, polymethacrylate, bis-octyl basic octyl salt of sulfur phosphorus, composite anti-foaming agent, oil-soluble graphene, constant temper...