阅读说明：本技术 一种合成型酯类基础油型在线清洗剂及其制备方法 (Synthetic ester base oil type online cleaning agent and preparation method thereof ) 是由 徐芹龙 宋桂林 田晓如 刘辉 库国强 张贵栋 龙晨程 韦仁智 于 2021-01-26 设计创作，主要内容包括：本发明公开了一种合成型酯类基础油型在线清洗剂及其制备方法,属于润滑油技术领域。本发明的清洗剂由下述质量百分比的原料组成：清净分散剂：10-16％；极压抗磨剂：1-8％；基础油A：5-20％；基础油B：10-20％；基础油C：40-74％。采用本发明的技术方案能够有效保证清洗剂在高温环境下清洗的安全性及清净能力,降低了设备因需人工清洗所带来的停工时间及生产成本,提高了生产效率。(The invention discloses a synthetic ester base oil type online cleaning agent and a preparation method thereof, belonging to the technical field of lubricating oil. The cleaning agent disclosed by the invention comprises the following raw materials in percentage by mass: cleaning dispersant: 10 to 16 percent; extreme pressure antiwear agent: 1 to 8 percent; base oil A: 5 to 20 percent; base oil B: 10 to 20 percent; base oil C: 40-74 percent. By adopting the technical scheme of the invention, the cleaning safety and cleaning capacity of the cleaning agent in a high-temperature environment can be effectively ensured, the downtime and production cost of equipment caused by manual cleaning are reduced, and the production efficiency is improved.)

1. The synthetic ester base oil type online cleaning agent is characterized by comprising the following raw materials in percentage by mass: cleaning dispersant: 10 to 16 percent; extreme pressure antiwear agent: 1 to 8 percent; base oil A: 5 to 20 percent; base oil B: 10 to 20 percent; base oil C: 40-74 percent.

2. The synthetic type ester base oil type on-line cleaning agent as claimed in claim 1, which is characterized in that: the detergent dispersant is Severon OLOA 45500 or LubomoistlZ 6786.

3. The synthetic type ester base oil type on-line cleaning agent as claimed in claim 1, which is characterized in that: the extreme pressure antiwear agent adopts Whitwal H4212 or Whitwal T306.

4. The synthetic type ester base oil type on-line cleaning agent as claimed in any one of claims 1-3, wherein: the base oil A adopts five types of fully synthetic ester base oil; the base oil B is selected from a second-class hydrogenated base oil 150N; the base oil C is selected from three types of base oil 100N or bright stock.

5. The synthetic type ester base oil type on-line cleaning agent as claimed in claim 4, wherein: the base oil A is preferably isooctyl sebacate or trimethylolpropane oleate.

6. The synthetic type ester base oil type on-line cleaning agent as claimed in claim 4, wherein: the base oil B is preferably 150N Taizhou or 150N Heizhou.

7. The synthetic type ester base oil type on-line cleaning agent as claimed in claim 4, wherein: the base oil C is preferably 6CST or 150 BS.

8. The preparation method of the synthetic type ester base oil type on-line cleaning agent as claimed in any one of claims 1 to 7, characterized by comprising the following steps:

step one, stirring and mixing base oil A, base oil B and base oil C; heating and keeping the temperature of the obtained mixture at 55-65 ℃, and continuously stirring;

step two, when the temperature is controlled to be 60-65 ℃, adding an extreme pressure antiwear agent into the mixture and stirring;

step three, when the temperature of the mixture obtained in the step two is stabilized at 60 ℃, continuously adding the detergent dispersant, and stirring for at least 1 hour;

and step four, filtering the oil product obtained in the step three by using a filter, beating out the finished oil product, and stopping heating and stirring.

9. The method for preparing the synthetic type ester base oil type online cleaning agent according to claim 8, wherein in the first step, the base oil B and the base oil C are stirred and mixed, and the base oil A is added before the temperature rise process is completed.

10. The method for preparing the synthetic type ester base oil type on-line cleaning agent according to claim 8, wherein in the fourth step, the filtering is performed by using a filter with the size less than 5 microns.

Technical Field

The invention belongs to the technical field of lubricating oil and additives, and particularly relates to a synthetic ester base oil type online cleaning agent and a preparation method thereof.

Background

With the rapid development of the industrial industry, the number of large-scale plants is rapidly increased, the daily maintenance of equipment in the plants also becomes an important part in the production link, and the lubrication management is one of the daily maintenance and is naturally concerned. Under the daily working conditions of the equipment, substances such as oil sludge, carbon deposit and the like are inevitably generated, and the substances are difficult to remove by a filtering and cleaning system carried by the equipment, so that the equipment needs to be cleaned by human intervention. The international research on the condition is early, and some corresponding cleaning agents capable of cleaning machines on line are also provided, but for some equipment with higher working condition temperature, the online cleaning agents cannot ensure to complete online cleaning work on the premise of safety.

Aiming at the problems encountered by the on-line cleaning agent of the industrial system at the present stage, namely, the safety of cleaning under a high-temperature environment cannot be ensured, and meanwhile, the excellent cleaning capability of the cleaning agent cannot be ensured under the high temperature. If the traditional two-type and three-type base oil is used for blending, although the cost is low, the performance condition can not completely meet the use requirement under the high-temperature condition. In order to further improve the high-temperature performance of the product, a research about a high-temperature-resistant online cleaning agent needs to be carried out.

Through search, the Chinese patent application numbers are: 201610100016.9, filing date: in 2016, 2, 23 days, the invention and creation names are: an anti-wear and anti-friction efficient cleaning agent for an engine lubricating system and a cleaning method for the engine lubricating system. The cleaning agent disclosed in the application consists of the following raw materials in percentage by mass: 0.5-5% of oil-soluble surfactant, 5-15% of penetrating agent, 1-10% of high-efficiency dispersant, 1-10% of high-efficiency detergent, 1-15% of carbon deposit dissolving agent, 0.5-1.5% of anti-wear and anti-friction agent, 10-30% of oil-soluble polyether and the balance of base oil. When the cleaning agent is used for cleaning, the dynamic cleaning and maintenance of each part in an engine lubricating system can be carried out without disassembling an engine or equipping special equipment, the operation is simple, and the cleaning effect is good. However, when the cleaning agent of the application is used for online cleaning of equipment with higher temperature, on one hand, the problem of safety is inevitable, and the equipment is easy to burn due to overhigh temperature; on the other hand, the cleaning effect under high-temperature environment is difficult to guarantee.

Disclosure of Invention

1. Problems to be solved

Aiming at the problems that the high-temperature performance of the traditional cleaning agent is relatively poor and the cleaning safety and cleaning capacity of the traditional cleaning agent can not be ensured under the high-temperature environment, the synthetic type ester base oil type online cleaning agent and the preparation method thereof are provided. By adopting the technical scheme of the invention, the problems can be effectively solved, the downtime and the production cost caused by the need of manual cleaning of equipment are reduced, and the production efficiency is improved.

2. Technical scheme

In order to solve the problems, the technical scheme adopted by the invention is as follows:

the invention relates to a synthetic ester base oil type online cleaning agent which is prepared from the following raw materials in percentage by mass: cleaning dispersant: 10 to 16 percent; extreme pressure antiwear agent: 1 to 8 percent; base oil A: 5 to 20 percent; base oil B: 10 to 20 percent; base oil C: 40-74 percent.

Furthermore, the detergent dispersant is Severone OLOA 45500 or LuboRunz LZ 6786.

Furthermore, the extreme pressure antiwear agent adopts Wheatstone H4212 or Wheatstone T306.

Furthermore, the base oil A adopts five types of fully synthetic ester base oil; the base oil B is selected from a second-class hydrogenated base oil 150N; the base oil C is selected from three types of base oil 100N or bright stock.

Further, the base oil A is preferably isooctyl sebacate or trimethylolpropane oleate.

Further, the base oil B is preferably 150N Taizhou or 150N Heizhou.

Further, the base oil C is preferably 6CST or 150 BS.

The preparation method of the synthetic ester base oil type online cleaning agent comprises the following steps:

step one, stirring and mixing base oil A, base oil B and base oil C; heating and keeping the temperature of the obtained mixture at 55-65 ℃, and continuously stirring;

step two, when the temperature is controlled to be 60-65 ℃, adding an extreme pressure antiwear agent into the mixture and stirring;

step three, when the temperature of the mixture obtained in the step two is stabilized at 60 ℃, continuously adding the detergent dispersant, and stirring for at least 1 hour;

and step four, filtering the oil product obtained in the step three by using a filter, beating out the finished oil product, and stopping heating and stirring.

Further, in the first step, the base oil B and the base oil C are stirred and mixed; the addition of base oil a was completed before the warming process was completed.

Further, in step four, the filtration is performed using a filter of less than 5 microns.

3. Advantageous effects

Compared with the prior art, the technical scheme provided by the invention has the following remarkable effects:

(1) according to the synthetic type ester base oil type online cleaning agent, the components and the proportion are optimally designed, and particularly, a high-performance clean dispersing agent and high-quality base oil are added to prepare the synthetic type ester base oil type online cleaning agent. On the other hand, the cleaning agent has higher flash point and viscosity index, and the safety factor in the cleaning process is greatly improved on the basis of ensuring the cleaning effect by combining the addition of special additives. Meanwhile, the components interact with each other and exert a synergistic effect, so that the aim of cleaning the parts of the machine on line under a high-temperature condition is effectively fulfilled.

(2) According to the synthetic ester base oil type online cleaning agent, the type of the cleaning dispersant is optimized, specifically, the Chevrolet OLOA 45500 or Luborun LZ6786 is adopted as the cleaning dispersant, and the ash content and the addition amount of the cleaning dispersant are controlled, so that the cleaning agent can meet the requirement of the specifications of natural gas engine oil for long oil change mileage of sixty thousand kilometers on the long oil change period, has excellent oxidation resistance, wear resistance, high-temperature cleaning property and the like, further prolongs the oil change period, and has good economic benefits.

(3) According to the synthetic ester base oil type online cleaning agent, the extreme pressure antiwear agent is one of Huihua H4212 and Huihua T306, and the extreme pressure antiwear property of the cleaning agent is further improved through the specific selection of the extreme pressure antiwear agent, so that on one hand, a machine can be effectively guaranteed to normally work in the cleaning process, and the influence on the lubrication of the machine is avoided. On the other hand, the obtained cleaning agent provides possibility of on-line cleaning under high temperature conditions, and has excellent cleaning capability.

(4) The preparation method of the synthetic ester base oil type online cleaning agent has the advantages of simple preparation process, low temperature, low energy consumption and easy realization of industrialization by optimizing the preparation process. Specifically, according to the principle that the base oil and the additive are firstly added, the viscosity is large and the ratio is low, and then the base oil B and the base oil C are added into a blending tank to be mixed, and the base oil A is added while the temperature is raised, so that the base oil with high viscosity can be completely mixed. Meanwhile, the temperature is accurately controlled, the added additives can be completely fused into the base oil, the effect can be exerted to the maximum extent, the produced cleaning agent is ensured to have higher yield, and the product quality is improved.

Drawings

FIG. 1 is a graph of the results of performance testing of the detergents of example 1 of the present invention and comparative examples 1-4;

Detailed Description

Aiming at the existing cleaning agent on the market, firstly, the cleaning agent can not clean the high-temperature chain in a working state on the premise of ensuring safety and cleaning effect, and can not be cleaned at any time according to actual conditions, so that the cleaning agent can be cleaned only when the cleaning agent is stopped and overhauled, and the time is limited; secondly, in the process of cleaning pollutants such as oil sludge, the cleaning agent can be mixed with high-temperature chain oil caused by the reason on the chain, and the two oil phases are poor in solubility and can cause adverse effects on equipment lubrication.

The invention provides a synthetic ester base oil type online cleaning agent which is prepared from the following raw materials in percentage by mass: cleaning dispersant: 10 to 16 percent; extreme pressure antiwear agent: 1 to 8 percent; base oil A: 5 to 20 percent; base oil B: 10 to 20 percent; base oil C: 40-74 percent.

Specifically, the detergent dispersant may be one of a Severon OLOA 45500 and a Lubozun LZ 6786. The former additive is used for cleaning an engine, and the latter additive is used for cleaning an industrial gear box or a hydraulic oil tank. According to the comparison of the quality standards in the test process, the applicant finds that the cleaning agent can be used for debugging the synthetic type ester base oil type online cleaning agent. And simultaneously, the additive amount is controlled, and the oxidation resistance and the equipment oil for cleaning equipment are subjected to mixing test, so that the final obtained product can meet the requirements. And the cleaning agent has excellent oxidation resistance, compatibility with oil products and the like, and further optimizes the cleaning effect of the cleaning agent.

The extreme pressure antiwear agent adopts one of Huihua H4212 and Huihua T306, so that the obtained cleaning agent product has good extreme pressure antiwear performance. According to the invention, through the specific selection of the extreme pressure antiwear agent, the extreme pressure antiwear property of the obtained cleaning agent is further improved, on one hand, the normal work of a machine in the cleaning process can be effectively ensured, and the self lubrication of the machine cannot be influenced. On the other hand, the obtained cleaning agent provides possibility of on-line cleaning under high temperature conditions, and has excellent cleaning capability.

The base oil A is selected from top five types of fully synthetic ester base oil which can be one of isooctyl sebacate or trimethylolpropane oleate, and has higher viscosity index and excellent oxidation stability. The base oil B is selected from a second-class hydrogenated base oil 150N, which can be 150N of Taizhou 150N, and has good low-temperature performance and additive sensitivity. The base oil C is selected from three types of base oil 100N or bright stock, and can be one of 6CST or 150 BS.

It should be noted that, in the original debugging process, because the service performance of the obtained cleaning agent is difficult to meet the standard requirements (especially for seal aging, maintenance of high temperature and high shear viscosity, generation of paint film sludge and the like), the applicant makes a diligent attempt to introduce another base oil again for performance filling. Meanwhile, the applicant optimizes and designs the scheme for many times, analyzes and processes a large amount of test data, and finally determines to adopt more bright stock or three types of base oil applied to the field of industrial oil, so that the product has good low-temperature performance, viscosity-temperature performance, oxidation resistance and lower evaporation loss. In addition, the performance of the obtained product is tested, and a large amount of experimental data is combined, so that the addition proportion of the base oil is finally determined, the cleaning condition of mechanical equipment during online work can be effectively met, particularly, the machine is cleaned online under the high-temperature condition, and the product has excellent cleaning and dispersing performance and extreme pressure wear resistance.

The cleaning agent disclosed by the invention comprises the following preparation steps of:

step one, adding the base oil B and the base oil C which are prepared in proportion into a blending tank, and stirring and mixing. And (3) heating and keeping the temperature of the mixture at 55-65 ℃, wherein the base oil A is added into a blending tank according to a required proportion in the heating process (the base oil A is added before the heating process is finished), stirring is kept, and the base oil with higher viscosity can be completely and uniformly mixed.

Step two, controlling the temperature to be 60-65 ℃ (the temperature is not more than 65 ℃), and adding an extreme pressure antiwear agent into the mixture and stirring when the temperature is close to 60 ℃;

step three, when the temperature of the mixture obtained in the step two is stabilized at 60 ℃, continuously adding the detergent dispersant, and stirring for at least 1 hour;

and step four, filtering the oil product obtained in the step three by using a filter with the diameter less than 5 microns, beating out the finished oil product, and stopping heating and stirring.

The preparation process of the detergent is optimally designed, so that the preparation process is simple, the temperature is low, the energy consumption is low, and the industrialization is easy to realize. Specifically, according to the principle that the base oil and the additive are firstly added, the viscosity is large and the ratio is low, and then the base oil B and the base oil C are added into a blending tank to be mixed, and the base oil A is added while the temperature is raised, so that the base oil with high viscosity can be completely mixed. Meanwhile, the temperature is accurately controlled, the added additives can be completely fused into the base oil, the effect can be exerted to the maximum extent, the produced cleaning agent is ensured to have higher yield, and the product quality is improved.

The invention is further described with reference to specific examples.

Example 1

The synthetic type ester base oil type online cleaning agent comprises the following raw materials in percentage by mass: the detergent dispersant is Luborun LZ 6786: 14 percent; extreme pressure antiwear agent huihua H4212: 5 percent; base oil a was trimethylolpropane oleate: 6 percent; the base oil B is 150N: 15 percent; base oil C was 6 CST: 60 percent.

The preparation process comprises the following steps:

step one, adding the base oil B and the base oil C which are prepared according to the proportion into a blending tank, and stirring and mixing. And (3) heating and keeping the temperature of the mixture at 55 ℃, wherein the base oil A is added into the blending tank according to the proportion in the heating process (the base oil A is added before the heating process is finished), and stirring is kept, so that the base oil with higher viscosity can be completely and uniformly mixed.

Step two, controlling the temperature at 65 ℃ (the temperature is not more than 65 ℃), and adding the extreme pressure antiwear agent in the proportion into the mixture and stirring when the temperature is close to 60 ℃;

step three, when the temperature of the mixture obtained in the step two is stabilized at 60 ℃, continuously adding the detergent dispersant in the proportion, and stirring for at least 1 hour;

and step four, filtering the oil product obtained in the step three by using a filter with the diameter less than 5 microns, beating out the finished oil product, and stopping heating and stirring.

The prepared cleaning agent is subjected to performance test, and specific test results are shown in figure 1.

Example 2

The synthetic type ester base oil type online cleaning agent comprises the following raw materials in percentage by mass: the detergent dispersant is Luborun LZ 6786: 10 percent; the extreme pressure antiwear agent is Huihua T306: 1 percent; base oil a was isooctyl sebacate: 5 percent; base oil B was heyaw 150N: 10 percent; base oil C was 150 BS: 74 percent.

The preparation process comprises the following steps:

step one, adding the base oil B and the base oil C which are prepared according to the proportion into a blending tank, and stirring and mixing. And (3) heating and keeping the temperature of the mixture at 65 ℃, wherein the base oil A is added into the blending tank according to the proportion in the heating process (the base oil A is added before the heating process is finished), and stirring is kept, so that the base oil with higher viscosity can be completely and uniformly mixed.

Step two, controlling the temperature at 60 ℃ (the temperature is not more than 65 ℃), and adding the extreme pressure antiwear agent in the proportion into the mixture and stirring when the temperature is close to 60 ℃;

step three, when the temperature of the mixture obtained in the step two is stabilized at 60 ℃, continuously adding the detergent dispersant in the proportion, and stirring for at least 1 hour;

and step four, filtering the oil product obtained in the step three by using a filter with the diameter less than 5 microns, beating out the finished oil product, and stopping heating and stirring.

The performance of the prepared cleaning agent is tested, and the specific test result is basically the same as that of the embodiment 1.

Example 3

The synthetic type ester base oil type online cleaning agent comprises the following raw materials in percentage by mass: the detergent dispersant is a mixture of a Schiff dragon OLOA 45500: 16 percent; the extreme pressure antiwear agent is Huihua H4212: 8 percent; base oil a was isooctyl sebacate: 16 percent; base oil B is huihua H4212: 20 percent; base oil C was 150 BS: 40 percent.

The preparation process comprises the following steps:

step one, adding the base oil B and the base oil C which are prepared according to the proportion into a blending tank, and stirring and mixing. And (3) heating and keeping the temperature of the mixture at 60 ℃, wherein the base oil A is added into the blending tank according to the proportion in the heating process (the base oil A is added before the heating process is finished), and stirring is kept, so that the base oil with higher viscosity can be completely and uniformly mixed.

Step two, controlling the temperature at 62 ℃ (the temperature is not more than 65 ℃), and adding the extreme pressure antiwear agent in the proportion into the mixture and stirring when the temperature is close to 60 ℃;

step three, when the temperature of the mixture obtained in the step two is stabilized at 60 ℃, continuously adding the detergent dispersant in the proportion, and stirring for at least 1 hour;

and step four, filtering the oil product obtained in the step three by using a filter with the diameter less than 5 microns, beating out the finished oil product, and stopping heating and stirring.

The performance of the prepared cleaning agent is tested, and the specific test result is basically the same as that of the embodiment 1.

Example 4

The synthetic type ester base oil type online cleaning agent comprises the following raw materials in percentage by mass: the detergent dispersant is a mixture of a Schiff dragon OLOA 45500: 14 percent; the extreme pressure antiwear agent is Huihua H4212: 5 percent; base oil a was isooctyl sebacate: 6 percent; base oil B is huihua H4212: 15 percent; base oil C was 150 BS: 60 percent.

The preparation process comprises the following steps:

step one, adding the base oil B and the base oil C which are prepared according to the proportion into a blending tank, and stirring and mixing. And (3) heating and keeping the temperature of the mixture at 59 ℃, wherein the base oil A is added into the blending tank according to the proportion in the heating process (the base oil A is added before the heating process is finished), and stirring is kept, so that the base oil with higher viscosity can be completely and uniformly mixed.

Step two, controlling the temperature to 63 ℃ (the temperature is not more than 65 ℃), and adding the extreme pressure antiwear agent in the proportion into the mixture and stirring when the temperature is close to 60 ℃;

step three, when the temperature of the mixture obtained in the step two is stabilized at 60 ℃, continuously adding the detergent dispersant in the proportion, and stirring for at least 1 hour;

and step four, filtering the oil product obtained in the step three by using a filter with the diameter less than 5 microns, beating out the finished oil product, and stopping heating and stirring.

The performance of the prepared cleaning agent is tested, and the specific test result is basically the same as that of the embodiment 1.

Comparative example 1

This comparative example differs from example 1 in that: the detergent dispersant is LubomoistlZ 6786, and the addition amount of the detergent dispersant is controlled to be 9%; the base oil B is 150N, the addition amount of the base oil B is controlled to be 20%, other components are unchanged, and the preparation process is the same as that of the example 1. The prepared cleaning agent is subjected to performance test, and the specific test result is shown in figure 1.

Comparative example 2

This comparative example differs from example 1 in that: the extreme pressure antiwear agent is changed into a Whiteflower T304: 5 percent, and other components are unchanged, and the preparation process is the same as that of the example 1. The prepared cleaning agent is subjected to performance test, and the specific test result is shown in figure 1.

Comparative example 3

This comparative example differs from example 1 in that: the base oil A is a mixture of 3% isooctyl sebacate and 3% PAO, other components are unchanged, and the preparation process is the same as that of the example 1. The prepared cleaning agent is subjected to performance test, and the specific test result is shown in figure 1.

Comparative example 4

This comparative example differs from example 1 in that: the detergent dispersant adopts Lubozun LZ6786, and the content of the detergent dispersant is controlled to be 9%; the extrusion antiwear agent adopts Whitman H4212, the content of the extrusion antiwear agent is increased to 10 percent, and the rest components are not changed; the preparation process was the same as in example 1. The prepared cleaning agent is subjected to performance test, and the specific test result is shown in figure 1.

As shown in fig. 1, combining the data of example 1 and comparative examples 1-4, it can be seen that example 1 has a higher viscosity index and a smaller magnitude of viscosity change with temperature than comparative example 1; compared with the comparative example 2, the sintering load is higher, and the extreme pressure performance is better; compared with the comparative example 3, the copper sheet has better corrosion grade, has less corrosion to the copper parts of the equipment, and protects the equipment to a greater extent; both the extreme pressure performance and the copper sheet corrosion rating were better compared to comparative example 4. In the case of the comparison of various schemes, the reduction of the component types or the change of the key component ratio can hardly achieve the performance of example 1 in the comprehensive performance. The synthetic type ester base oil type online cleaning agent has excellent extreme pressure abrasion resistance, can ensure that a machine can work normally in the cleaning process, and cannot influence the lubrication of the machine; the high flash point, the high viscosity index and the special additive are selected, so that the cleaning effect is ensured, and the safety factor in the cleaning process is greatly improved. The two interact and coordinate to achieve the aim of cleaning the parts of the machine on line under high temperature conditions (all comparative examples are compared with example 1). Comprehensively considering all aspects, the extreme pressure antiwear agent is confirmed, the type of base oil is selected, and the detergent dispersant and the like are selected. And through a plurality of tests, the proportion among related components is determined, and the existing scheme is obtained so as to meet the fundamental purpose of online cleaning of the parts of the machine under the high-temperature condition.

The present invention and its embodiments have been described above schematically, without limitation, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching, without departing from the spirit of the invention, the person skilled in the art shall not inventively design the similar structural modes and embodiments to the technical solution, but shall fall within the scope of the invention.