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Special lubricating oil for gas filling sub-station system

A technology for filling sub-stations and lubricating oil, which is applied in lubricating compositions, petroleum industry, etc., can solve the problems of not meeting the requirements of lubrication and gas push, and achieve the effects of excellent extreme pressure and anti-wear properties and reducing equipment noise.

Inactive Publication Date: 2015-12-09
TIANJIN ZHONGDA PETROCHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Although the gas filling substation uses a hydraulic pump as the power source, due to the characteristics of natural gas rich in water, semi-field operations, frequent switching between high and low pressure, and pressure delivery up to 230MPa, conventional hydraulic oil cannot meet its lubrication and gas pushing needs.

Method used

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  • Special lubricating oil for gas filling sub-station system
  • Special lubricating oil for gas filling sub-station system
  • Special lubricating oil for gas filling sub-station system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Example 1 is a full-component lubricating oil for 46# gas filling sub-station system, and the component contents are shown in Table 1.

[0022] Table 146# Concentration of special lubricating oil components in gas filling sub-station system

[0023]

[0024] The preparation method of the special lubricating oil for the gas filling sub-station system comprises the following steps:

[0025] Step a), pump 55kg of 150N hydrogenated base oil (base oil A) into a 150L blending kettle, and then pump 40kg of 500N hydrogenated base oil (base oil B). Stir and heat to 65±5°C to obtain the first mixture.

[0026] Step b), add 2000g of ashless dispersant, 500g of antioxidant, 200g of auxiliary antioxidant, 1200g of antioxidant and antiwear agent, 200g of metal deactivator, 300g of pour point depressant into the first mixture obtained in step a) respectively agent, keep the temperature at 65±5°C, and keep stirring for 45 minutes to obtain the second mixture.

[0027] Step c), us...

Embodiment 2

[0032] Example 2 is a special lubricating oil for the full-component 46# gas filling sub-station system. The component contents are shown in Table 2.

[0033] Table 246# Contents of special lubricating oil components in gas filling sub-station system

[0034]

[0035] The preparation method of the special lubricating oil for the gas filling sub-station system comprises the following steps:

[0036] Step a), pump 45kg of 150N hydrogenated base oil (base oil A) into a 150L blending kettle, and then pump 50kg of 500N hydrogenated base oil (base oil B). Stir and heat to 65±5°C to obtain the first mixture.

[0037] Step b), add 2200g of ashless dispersant, 400g of antioxidant, 300g of auxiliary antioxidant, 1000g of antioxidant and antiwear agent, 100g of metal deactivator, 500g of pour point depressant into the first mixture obtained in step a) respectively agent, keep the temperature at 65±5°C, and keep stirring for 45 minutes to obtain the second mixture.

[0038] Step c)...

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Abstract

The present invention relates to a special lubricating oil for a gas filling sub-station system, wherein the special lubricating oil comprises, by mass, 2.0-2.2 parts of an ash-free dispersant, 0.4-0.5 part of an antioxidant, 0.2-0.3 part of an auxiliary antioxidant, 1.0-1.2 parts of an anti-oxidation and anti-wear agent, 0.1-0.2 part of a metal deactivator, 0.04-0.05 part of an anti-rust agent, 0.08-0.11 part of a demulsifier, 0.001-0.002 part of an anti-foaming agent, 0.3-0.5 part of a pour point depressant, 0.018-0.019 part of kerosene, and 85-95 parts of base oil. According to the present invention, the special lubricating oil has characteristics of excellent extreme pressure anti-wear property, excellent water separation property and effective equipment noise reducing, and completely meets the use requirements of the gas filling sub-station system.

Description

technical field [0001] The invention belongs to the technical field of lubricating oil compositions, in particular to a lubricating oil composition suitable for use as an air-pushing medium in a CNG filling substation system and for lubricating hydraulic pumps. Background technique [0002] With the increasingly stringent national environmental protection requirements and increasingly stringent requirements for vehicle emissions, compressed natural gas and liquefied petroleum gas are characterized by their high octane number, low emissions of carbon monoxide, hydrocarbons and particulates, rich resources and low prices. Born to operate. In the future, more and more boilers fueled by coal, automobiles fueled by gasoline and diesel, and engines fueled by diesel or heavy wood will gradually shift to natural gas. With the gradual large-scale use of natural gas, the number and scale of refueling sub-stations, which are one of the important links in natural gas storage and transp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M169/04C10N30/06
Inventor 赵明红李树革
Owner TIANJIN ZHONGDA PETROCHEM CO LTD
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