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Synthetic diesel engine oil and preparation method thereof

A technology of engine oil and synthetic diesel, which is applied in the petroleum industry, lubricating compositions, etc., can solve the problems of poor engine protection, aggravated soot and carbon pollution, and high working temperature, and achieves outstanding high-temperature oxidation stability and excellent Excellent effect on deposition control and equipment cleanliness, high and low temperature performance

Active Publication Date: 2014-03-26
TEXAS PETROCHEM YANTAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Most of the new trucks, buses, engineering vehicles and stationary diesel units are equipped with Euro III and Euro IV engines. These engines are compact in structure and generally adopt technologies such as delayed injection, high-pressure common rail, and exhaust gas recirculation EGR. High-quality diesel engine oil will be oxidized and degraded quickly, soot and carbon pollution will increase, and wear will increase, which will not protect the engine well

Method used

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  • Synthetic diesel engine oil and preparation method thereof
  • Synthetic diesel engine oil and preparation method thereof
  • Synthetic diesel engine oil and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Embodiment 1: (in terms of 100 kilograms, the same below)

[0026]

[0027] The composite additive package contains 2.85% calcium, 0.94% zinc, 0.65% nitrogen, 0.86% phosphorus, 0.04% molybdenum and 0.36% boron.

[0028] The preparation method of this synthetic diesel engine oil adopts the following steps:

[0029] (1) Pump the oil-soluble polyalkylene glycol and synthetic ester base oil of the above weight into the blender with a gear pump, heat and stir, and mix evenly at a constant temperature of 60°C to obtain a mixed oil A;

[0030] (2) Add the above-mentioned compound additive package and viscosity index improver (polymethacrylate) to the mixed oil A prepared in step (1), and continue mechanical stirring at a constant temperature of 60°C for 2 hours to prepare mixed oil B ;

[0031] (3) Filter the blended oil B prepared in step (2), and filter it through a filter with a filter bag device under a pressure of 0.2 MPa to obtain clear and transparent synthetic die...

Embodiment 2

[0033]

[0034] The composite additive package contains 3.85% calcium, 1.40% zinc, 0.86% nitrogen and 1.22% phosphorus.

[0035] The preparation method of this synthetic diesel engine oil adopts the following steps:

[0036] (1) Pump the oil-soluble polyalkylene glycol and synthetic ester base oil of the above weight into the blender with a gear pump, heat and stir, and mix evenly at a constant temperature of 55°C to obtain a mixed oil A;

[0037] (2) Add the above-mentioned compound additive package and viscosity index improver (hydrogenated styrene isoprene copolymer) to the mixed oil A prepared in step (1), and continue mechanical stirring for 1.5 hours at a constant temperature of 55°C. Prepare mixed oil B;

[0038] (3) Filter the blended oil B prepared in step (2), and filter it through a filter with a filter bag device under a pressure of 0.15 MPa to obtain clear and transparent synthetic diesel engine oil.

Embodiment 3

[0040]

[0041]

[0042] The composite additive package contains 0.89% calcium, 1.15% zinc, 0.72% nitrogen, 1.12% phosphorus and 0.88% magnesium.

[0043] The preparation method of this synthetic diesel engine oil adopts the following steps:

[0044] (1) Pump the oil-soluble polyalkylene glycol and synthetic hydrocarbon base oil of the above weight into the blender with a gear pump, heat and stir, and mix evenly at a constant temperature of 50°C to obtain a mixed oil A;

[0045] (2) Add the above-mentioned compound additive package and viscosity index improver (styrene-diene copolymer) to the mixed oil A prepared in step (1), and continue mechanical stirring for 1 hour at a constant temperature of 50°C to obtain a mixed oil oil B;

[0046] (3) Filter the blended oil B prepared in step (2), and filter it through a filter with a filter bag device under a pressure of 0.1 MPa to obtain clear and transparent synthetic diesel engine oil.

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Abstract

The invention relates to the field of engine oil and particularly discloses synthetic diesel engine oil and a preparation method thereof. The synthetic diesel engine oil comprises the following components in percentage by weight: 5.31-11.5% of a composite additive, 5.0-9.0% of a viscosity index improver, 70-85% of oil soluble polyalkylene glycol and the balance of base oil. The synthetic diesel engine oil has the following benefits: the composition is reasonable, and the high-temperature oxidation stability, thermal stability, detergent-dispersibility and long oil change period are highlighted; at high temperature, the synthetic diesel engine oil film is tougher, and at low temperature, the synthetic diesel engine oil has higher flow rate and higher starting protective capacity, so that oil is saved; in addition, the synthetic diesel engine oil has excellent detergency property, is suitable for a vehicle which is frequently under long-distance, heavy-load and climbing working environments and frequently goes to areas with greatly different climates and terrains, and can be used for lubricating a naturally aspirated diesel engine or turbocharging heavy loading diesel engine equipped with an EGR, a DPF, and an SCR emission control device.

Description

(1) Technical field [0001] The invention relates to the field of engine oil, in particular to a synthetic diesel engine oil and a preparation method thereof. (2) Background technology [0002] Most of the new trucks, buses, engineering vehicles and stationary diesel units are equipped with Euro III and Euro IV engines. These engines are compact in structure and generally adopt technologies such as delayed injection, high-pressure common rail, and exhaust gas recirculation EGR. High-quality diesel engine oil will be oxidized and degraded rapidly, soot and carbon pollution will be aggravated, wear will be aggravated, and the engine cannot be well protected. (3) Contents of the invention [0003] In order to make up for the deficiencies of the prior art, the present invention provides a synthetic diesel engine oil with reasonable components, long oil change interval, good cleaning and dispersibility, good high-temperature oxidation stability, stronger starting protection abil...

Claims

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Application Information

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IPC IPC(8): C10M169/04C10N30/04C10N30/02C10N40/25
Inventor 王述申李晓丽
Owner TEXAS PETROCHEM YANTAI
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