阅读说明：本技术 一种燃气发动机油组合物及其制备方法 (Gas engine oil composition and preparation method thereof ) 是由 乔良 袁俊洲 宋来功 曹克强 秦胜利 赵金伟 王晶 江良所 于 2021-08-14 设计创作，主要内容包括：本发明涉及发动机油技术领域,尤其涉及了一种燃气发动机油组合物及其制备方法,包括溶剂精制矿物油、金属钝化剂、无灰摩擦改进剂、抗氧剂、防锈剂和降凝剂。溶剂精制矿物油由溶剂法精制获得的矿物油型基础油,溶剂精制矿物油的质量百分比为90.8％-95.8％,所述金属钝化剂的质量百分比为0.1％-5％,无灰摩擦改进剂的质量百分比为3％-5％,抗氧剂的质量百分比为0.5％-1％,防锈剂的质量百分比为0.5％-1％,降凝剂的质量百分比为0.1％-0.3％,经过合成制备的机油能够控制硫酸盐灰分在1％以下,防止在燃烧室内形成极为坚硬的沉积物,无法进行清洗,防止出现提前点火、爆燃等现象,并且污染火花塞,使发动机不能平衡操作,影响汽车正常运行。(The invention relates to the technical field of engine oil, in particular to a gas engine oil composition and a preparation method thereof. The solvent refined mineral oil is mineral oil type base oil obtained by refining by a solvent method, the mass percent of the solvent refined mineral oil is 90.8-95.8%, the mass percent of the metal deactivator is 0.1-5%, the mass percent of the ashless friction modifier is 3-5%, the mass percent of the antioxidant is 0.5-1%, the mass percent of the antirust agent is 0.5-1%, and the mass percent of the pour point depressant is 0.1-0.3%.)

1. A gas engine oil composition comprises solvent refined mineral oil, a metal deactivator, an ashless friction modifier, an antioxidant, an antirust agent and a pour point depressant, and is characterized in that: the solvent refined mineral oil is mineral oil type base oil obtained by refining with a solvent method, and the mass percentage of the solvent refined mineral oil is 90.8% -91.7%.

2. The gas engine oil composition of claim 1, wherein: the metal passivator is a thiadiazole derivative, the substitute of the metal passivator is thiadiazole polysulfide (T561), the synthesis process is to synthesize 2, 5-dihydroxy thiadiazole (DMTD) sodium salt by taking hydrazine hydrate, carbon disulfide and sodium hydroxide as raw materials, and the mass percent of the metal passivator is 3% -5%.

3. The gas engine oil composition of claim 1, wherein: the ashless friction modifier is selected from one or more of fatty acid amide, fatty acid polyol ester and fatty amine, and the mass percent of the ashless friction modifier is 3.7-5%.

4. The gas engine oil composition of claim 1, wherein: the antioxidant is selected from one or more of zinc butyl octyl dialkyl dithiophosphate or amine and phenol antioxidants, and the mass percentage of the antioxidant is 0.7% -1%.

5. The gas engine oil composition of claim 1, wherein: the antirust agent is a compound of 40-60% of alkyl imidazoline phosphate and 60-40% of dodecenyl butylene succinate half ester, and the mass percentage of the antirust agent is 0.7-1%.

6. The gas engine oil composition of claim 1, wherein: the pour point depressant is polymethacrylate, is polymerized by methyl methacrylate monomers and is 0.2-0.3% by mass.

7. The preparation method of the gas engine oil composition comprises a reaction box (1), a motor (2), a stirring shaft (3), a first permeable membrane (4) and a second permeable membrane (5), and is characterized in that: the reactor is characterized in that the motor (2) is fixedly arranged at the center of the top of the reaction box (1), the stirring shaft (3) is rotatably connected to the output end of the motor (2), the first permeable membrane (4) is fixedly arranged at the top end of the interior of the reaction box (1), and the second permeable membrane (5) is fixedly arranged at the bottom of the interior of the reaction box (1).

8. The method for producing a gas engine oil composition according to claim 7, characterized in that: reaction box (1) comprises feed inlet one (101), feed inlet two (102), feed inlet three (103), feed inlet four (104), feed inlet five (105) and discharge gate (106), the left side top of reaction box (1) is seted up in feed inlet one (101), the right side top of reaction box (1) is seted up in feed inlet two (102), the left side bottom of reaction box (1) is seted up in feed inlet three (103), the right side bottom of reaction box (1) is seted up in feed inlet four (104), the top left side of reaction box (1) is seted up in feed inlet five (105), the bottom of reaction box (1) is seted up in discharge gate (106).

9. The method of manufacturing a gas engine oil composition according to claim 7, comprising the steps of:

s1; adding mineral oil type base oil obtained by solvent refining into a reaction box (1) from a first feeding hole (105), adding a metal deactivator into the reaction box (1) from a first feeding hole (101), adding an ashless friction modifier into the reaction box (1) from a second feeding hole (102), starting a motor (2), driving a stirring shaft (3) to rotate by the motor (2), and stirring a mixture of the solvent refined mineral oil, the metal deactivator and the ashless friction modifier by the stirring shaft (3).

S2; after standing for a period of time, the mixture of the solvent refined mineral oil, the metal deactivator and the ashless friction modifier gradually flows to the bottom end of the interior of the reaction box (1) through the first permeable membrane (4), the antioxidant and the antirust agent are added into the reaction box (1) from the third feed inlet (103), the pour point depressant is added into the reaction box (1) from the fourth feed inlet (104), the motor (2) is started, the motor (2) drives the stirring shaft (3) to rotate, and the stirring shaft (3) stirs the mixed solvent refined mineral oil.

S3; after standing for a period of time, the synthesized engine oil gradually flows to the bottom inside the reaction box (1) through the second permeable membrane (5) and finally flows out of the discharge hole (106) to obtain the fuel engine oil.

Technical Field

The invention relates to the technical field of engine oil, in particular to a gas engine oil composition and a preparation method thereof.

Background

The engine lubricating oil, also called as internal combustion engine lubricating oil, is called as engine oil for short, is a lubricating medium of each moving part in an engine system, has the functions of lubricating, cooling, cleaning, sealing and the like, has the main functions of reducing friction and slowing down abrasion in machinery so as to ensure the effective and long-term work of the machinery, and has the cooling function, so that the lubricating oil can take away heat generated during the friction of the machinery, keep a certain heat balance state, control the machinery to work within a certain temperature range and prevent parts from being damaged due to the continuous rise of temperature.

The gas engine oil is mainly distinguished from the oil engine oil by controlling the addition amount of sulfated ash, because the gas engine oil is easily oxidized and nitrated to generate sludge due to the higher combustion temperature of the gas fuel, and the metal salt is easily deposited if the engine oil contains a metal detergent, so that the gas engine oil is required to have low ash content and good sludge dispersibility.

Research shows that after lubricating oil with over 1 percent of sulfated ash content is leaked into a combustion chamber of a gas engine, extremely hard sediments (particularly calcium-containing detergent) can be formed in the combustion chamber and cannot be cleaned, and a potential ignition point is formed.

Disclosure of Invention

The present invention is directed to a gas engine oil composition and a method for preparing the same, which solve the problems of the background art mentioned above.

In order to achieve the purpose, the invention provides the following technical scheme: the gas engine oil composition comprises solvent refined mineral oil, a metal deactivator, an ashless friction modifier, an antioxidant, an antirust agent and a pour point depressant, wherein the solvent refined mineral oil is mineral oil type base oil obtained by refining with a solvent method, and the mass percentage of the solvent refined mineral oil is 90.8-95.8%.

Preferably, the metal deactivator is a thiadiazole derivative, the substitute of the metal deactivator is thiadiazole polysulfide (T561), the synthesis process is to synthesize 2, 5-dimercapto thiadiazole (DMTD) sodium salt by taking hydrazine hydrate, carbon disulfide and sodium hydroxide as raw materials, and the mass percent of the metal deactivator is 0.1% -5%.

Preferably, the ashless friction modifier is selected from one or more of fatty acid amide, fatty acid polyol ester and fatty amine, and the mass percent of the ashless friction modifier is 3-5%.

Preferably, the antioxidant is selected from one or more of zinc butyl octyl dialkyl dithiophosphate or amine and phenol antioxidants, and the mass percentage of the antioxidant is 0.5% -1%.

Preferably, the antirust agent is a compound of 40-60% of alkyl imidazoline phosphate and 60-40% of dodecenyl butylene succinate half ester, and the mass percentage of the antirust agent is 0.5-1%.

Preferably, the pour point depressant is polymethacrylate, the pour point depressant is formed by polymerizing methyl methacrylate monomers, and the mass percent of the pour point depressant is 0.1-0.3%.

The preparation method of the gas engine oil composition comprises a reaction box, a motor, a stirring shaft, a first permeable membrane and a second permeable membrane, wherein the motor is fixedly arranged at the center of the top of the reaction box, the stirring shaft is rotatably connected to the output end of the motor, the first permeable membrane is fixedly arranged at the top end of the interior of the reaction box, and the second permeable membrane is fixedly arranged at the bottom of the interior of the reaction box.

Preferably, the reaction box comprises feed inlet one, feed inlet two, feed inlet three, feed inlet four, feed inlet five and discharge gate, feed inlet one is seted up in the left side top of reaction box, feed inlet two is seted up in the right side top of reaction box, the left side bottom of reaction box is located to feed inlet three openings, the right side bottom of reaction box is located to the feed inlet four divisions, the top left side of reaction box is seted up to feed inlet five, the bottom of reaction box is seted up to the discharge gate.

A preparation method of a gas engine oil composition comprises the following steps:

s1; adding mineral oil type base oil obtained by solvent refining into a reaction box from a feed inlet five, adding a metal deactivator into the reaction box from the feed inlet, adding an ashless friction modifier into the reaction box from the feed inlet to the reaction box, starting a motor, driving a stirring shaft to rotate by the motor, and stirring the mixture of the solvent refined mineral oil, the metal deactivator and the ashless friction modifier by the stirring shaft.

S2; after standing for a period of time, the mixture of the solvent refined mineral oil, the metal deactivator and the ashless friction modifier gradually slowly flows to the bottom end inside the reaction box through the permeable membrane, the antioxidant and the antirust agent are added into the three-way reaction box from the feeding port, the pour point depressant is added into the four-way reaction box from the feeding port, the motor is started, the motor drives the stirring shaft to rotate, and the stirring shaft stirs the mixed solvent refined mineral oil.

S3; after a period of standing, the synthesized engine oil gradually flows to the bottom of the inner part of the reaction box through the permeable membrane II and finally flows out of the discharge hole to obtain the fuel engine oil.

Compared with the prior art, the invention has the beneficial effects that:

1. the gas engine oil composition is prepared by blending solvent refined mineral oil, a metal deactivator, an ashless friction modifier, an antioxidant, an antirust agent and a pour point depressant according to a specific proportion, can control sulfated ash content to be below 1 percent, prevents extremely hard sediments from being formed in a combustion chamber, cannot be cleaned, prevents phenomena of pre-ignition, deflagration and the like, pollutes a spark plug, enables an engine to be out of balance operation, and influences the normal operation of an automobile.

2. The gas engine oil composition and the preparation method thereof are matched with the optimal ash content, prevent abrasion damage or valve problems, are used for an engine running at high temperature, have excellent oxidation resistance and anti-nitriding performance, excellent chemical stability and an ultra-long replacement period, enable the engine to keep a comfortable state within a long service life, have excellent fluidity at low temperature, have good low-temperature starting performance and low fuel efficiency.

3. The gas engine oil composition and the preparation method thereof are characterized in that the engine oil is prepared in the stirring process, the solvent refined mineral oil, the metal deactivator, the ashless friction modifier, the antioxidant, the antirust agent and the pour point depressant are sequentially added into the reaction box for mixing and stirring, the mixture is allowed to stand and pass through the first permeable membrane and the second permeable membrane, and large particles in the preparation process are filtered, so that the prepared engine oil is higher in purity and better in lubrication degree.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive labor.

FIG. 1 is a schematic view of the structure of a reaction chamber of the present invention.

In the figure: 1 reaction box, 101 feed inlet I, 102 feed inlet II, 103 feed inlet III, 104 feed inlet IV, 105 feed inlet V, 106 feed outlet, 2 motor, 3 stirring shaft, 4 permeable membrane I and 5 permeable membrane II.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Example 1:

referring to fig. 1, the present invention provides a technical solution: a gas engine oil composition comprises solvent refined mineral oil, a metal deactivator, an ashless friction modifier, an antioxidant, an antirust agent and a pour point depressant, wherein the solvent refined mineral oil is mineral oil type base oil refined by a solvent method, the mass percent of the solvent refined mineral oil is 90.8%, the metal deactivator is a thiadiazole derivative specifically, the substitute of the metal deactivator is thiadiazole polysulfide (T561), the synthesis process is that hydrazine hydrate, carbon disulfide and sodium hydroxide are used as raw materials to synthesize 2, 5-di-mercapto thiadiazole (DMTD) sodium salt, the mass percent of the metal deactivator is 5%, the ashless friction modifier is one or more selected from fatty acid amide, fatty acid polyol ester and aliphatic amine, the ashless friction modifier is 5%, the antioxidant is one or more selected from butyl octyl dialkyl zinc dithiophosphate or amine and phenol antioxidant, the mass percent of the antioxidant is 1 percent, the antirust agent is a compound of 40-60 percent of alkyl phosphate imidazoline and 60-40 percent of dodecenyl butylene succinate half ester, the mass percent of the antirust agent is 1 percent, the pour point depressant is polymethacrylate, the pour point depressant is formed by polymerizing methyl methacrylate monomers, the mass percent of the pour point depressant is 0.3 percent, the solvent refined mineral oil, the metal deactivator, the ashless friction modifier, the antioxidant, the antirust agent and the pour point depressant are blended into the gas engine oil according to a specific proportion, the sulfate ash content can be controlled to be below 1 percent, the extremely hard deposit can be prevented from being formed in a combustion chamber, the cleaning can not be carried out, the phenomena of preignition, deflagration and the like can be prevented, the spark plug can be polluted, the engine can not operate in a balanced manner, and the normal operation of an automobile can be influenced.

Example 2:

a gas engine oil composition comprises solvent refined mineral oil, a metal deactivator, an ashless friction modifier, an antioxidant, an antirust agent and a pour point depressant, wherein the solvent refined mineral oil is mineral oil type base oil refined by a solvent method, the mass percent of the solvent refined mineral oil is 91.7%, the metal deactivator is a thiadiazole derivative specifically, the substitute of the metal deactivator is thiadiazole polysulfide (T561), the synthesis process is that hydrazine hydrate, carbon disulfide and sodium hydroxide are used as raw materials to synthesize 2, 5-dimercapto thiadiazole (DMTD) sodium salt, the mass percent of the metal deactivator is 3%, the ashless friction modifier is selected from one or more of fatty acid amide, fatty acid polyol ester and aliphatic amine, the mass percent of the ashless friction modifier is 3.7%, the antioxidant is selected from one or more of zinc butyl octyl dialkyl dithiophosphate or amine and phenolic antioxidant, the anti-oxidant is 0.7 percent by mass, the antirust agent is a compound of 40 to 60 percent of alkyl imidazoline phosphate and 60 to 40 percent of dodecenyl butylene succinate half ester, the antirust agent is 0.7 percent by mass, the pour point depressant is polymethacrylate, the pour point depressant is formed by polymerizing methyl methacrylate monomers, the pour point depressant is 0.2 percent by mass, the optimal ash content is matched, the abrasion damage or the valve problem is prevented, and the engine used in high-temperature operation has excellent oxidation resistance and anti-nitridation performance, excellent chemical stability and an ultra-long replacement period, so that the engine keeps a comfortable state in a long service life, excellent fluidity at low temperature, good low-temperature starting performance and low fuel efficiency.

Referring to fig. 1, the present invention provides a technical solution: a preparation method of a gas engine oil composition comprises a reaction box 1, a motor 2, a stirring shaft 3, a first permeable membrane 4 and a second permeable membrane 5, and is characterized in that: the motor 2 is fixedly arranged at the center of the top of the reaction box 1, the stirring shaft 3 is rotatably connected to the output end of the motor 2, the permeable membrane one 4 is fixedly arranged at the top end of the interior of the reaction box 1, the permeable membrane two 5 is fixedly arranged at the bottom of the interior of the reaction box 1, the reaction box 1 is composed of a first feed inlet 101, a second feed inlet 102, a third feed inlet 103, a fourth feed inlet 104, a fifth feed inlet 105 and a discharge outlet 106, the first feed inlet 101 is arranged at the top of the left side of the reaction box 1, the second feed inlet 102 is arranged at the top of the right side of the reaction box 1, the third feed inlet 103 is arranged at the bottom of the left side of the reaction box 1, the fourth feed inlet 104 is arranged at the bottom of the right side of the reaction box 1, the fifth feed inlet 105 is arranged at the left side of the top of the reaction box 1, the discharge outlet 106 is arranged at the bottom of the reaction box 1, engine oil is prepared in the stirring process, and the solvent refined mineral oil is successively added into the reaction box 1, And mixing and stirring the metal deactivator, the ashless friction modifier, the antioxidant, the antirust agent and the pour point depressant, standing the mixture to pass through the first permeable membrane 4 and the second permeable membrane 5, and filtering large particles in the preparation process to obtain the high-purity lubricating oil with high lubrication degree.

A preparation method of a gas engine oil composition comprises the following steps:

s1; mineral oil type base oil obtained by solvent refining is added into a reaction box 1 from a feed inlet five 105, a metal deactivator is added into the reaction box 1 from a feed inlet one 101, an ashless friction modifier is added into the reaction box 1 from a feed inlet two 102, a motor 2 is started, the motor 2 drives a stirring shaft 3 to rotate, and the stirring shaft 3 stirs a mixture of solvent refined mineral oil, the metal deactivator and the ashless friction modifier.

S2; after standing for a period of time, the mixture of the solvent refined mineral oil, the metal deactivator and the ashless friction modifier gradually slowly flows to the bottom end inside the reaction box 1 through the first permeable membrane 4, the antioxidant and the antirust agent are added into the reaction box 1 from the third feed inlet 103, the pour point depressant is added into the reaction box 1 from the fourth feed inlet 104, the motor 2 is started, the motor 2 drives the stirring shaft 3 to rotate, and the stirring shaft 3 stirs the mixed solvent refined mineral oil.

S3; after standing for a period of time, the synthesized engine oil gradually flows to the bottom inside the reaction box 1 through the permeable membrane II 5 and finally flows out from the discharge hole 106 to obtain the fuel engine oil.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. The term "comprising", without further limitation, means that the element so defined is not excluded from the group consisting of additional identical elements in the process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.