CN114940921A - 一种bog压缩机油组合物及其制备方法 - Google Patents

一种bog压缩机油组合物及其制备方法 Download PDF

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CN114940921A
CN114940921A CN202210790837.5A CN202210790837A CN114940921A CN 114940921 A CN114940921 A CN 114940921A CN 202210790837 A CN202210790837 A CN 202210790837A CN 114940921 A CN114940921 A CN 114940921A
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oil composition
bog compressor
compressor
compressor oil
bog
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陶菲
李健
李潘源
陆海
谭艳君
赵玉贞
吴旭东
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China Petroleum and Chemical Corp
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Abstract

本发明提供了一种BOG压缩机油组合物及其制备方法，以质量分数计，BOG压缩机油组合物包括以下组分：具有式Ⅰ结构的聚醚93～99.85％，抗氧剂0.05～3.5％，腐蚀抑制剂0.05～2.5％和金属钝化剂0.05～1.0％。该BOG压缩机润滑油具有良好的黏温性能、良好的热氧化安定性、优良的润滑性能、较好的黏温性能、优异的抗腐蚀防锈性能，为BOG压缩机提供良好润滑、密封、防护、冷却等作用，同时，与碳氢化合物类气体接触具有低溶解特性，有效避免气体溶解产生油品黏度下降和吸入压力波动时形成泡沫，保证压缩机运行的可靠性。

Description

一种BOG压缩机油组合物及其制备方法
技术领域
本发明属于压缩机油技术领域，尤其涉及一种BOG压缩机油组合物及其制备方法。
背景技术
BOG(Boil-Off Gas蒸发气体，简称BOG)是指气体(如甲烷、丙烷、丁烷等)在其临界温度以下经加压被液化后的低温液体，因难以与环境绝对绝热，吸收外界热量而蒸发出的气体。随着储罐内挥发气体的增多，储罐内压力不断上升，为维持储罐压力在允许的范围内，一般需要把BOG压缩再冷凝成液体或压缩后输出。BOG压缩机就是用于压缩BOG的压缩机，通常采用往复式压缩机，其工作原理是利用连杆推动活塞进行反复运动，使气体增压外输。BOG压缩机的入口吸入的是低温气体(如LNG：-162℃、低温丙烷：-40～-42℃等)，因此压缩机的一级缸体、活塞等必须耐低温，还要防止结冰。
BOG压缩机的工况条件，决定了所使用的压缩机油需要具备如下主要性能：(1)良好的黏温性能，低温时，润滑油黏度不能太大，润滑油能够充分流到润滑部位；高温时，润滑油黏度不能太小，润滑油在润滑部位形成足够厚的油膜，保证良好润滑；(2)良好的润滑性能，减少摩擦面的磨损，保证设备正常运行；(3)具备良好的低温性能，以保证压缩机在低温时正常启动、运行；(4)与碳氢化合物类气体接触具有低溶解特性，避免气体溶解产生油品黏度下降和吸入压力波动时形成泡沫，而可能导致操作故障的发生；(5)具有良好的抗腐蚀防锈性能，保证设备正常运转；(6)具备良好的热氧化安定性和化学稳定性，保证压缩机运行的可靠性。
发明内容
有鉴于此，本发明的目的在于提供一种BOG压缩机油组合物及其制备方法，该组合物具有良好的热氧化安定性。
本发明提供了一种BOG压缩机油组合物，以质量分数计，包括以下组分：
具有式Ⅰ结构的聚醚93～99.85％，抗氧剂0.05～3.5％，腐蚀抑制剂0.05～2.5％和金属钝化剂0.05～1.0％；
Figure BDA0003730141970000021
所述R1为正丁基；所述R2和R4均为甲基；所述R3为H；
10≤n≤200；10≤m≤200。
在本发明中，10≤n≤30，10≤m≤30；所述n>m。
本发明特别适用于BOG压缩机油的润滑，为BOG压缩机提供良好润滑、密封、防护、冷却等作用。
在本发明中，所述聚醚在40℃的运动黏度为30～500mm2/s。所述式Ⅰ结构的聚醚为市售商品；或本领域技术人员采用熟知的方法自行制备。
在本发明中，所述腐蚀抑制剂选自改性磷酸酯和咪唑类衍生物的混合物；或咪唑类衍生物。
在本发明中，所述金属钝化剂选自苯并三氮唑和三氮唑的混合物；或甲基苯并三氮唑。所述抗氧剂选自N-(1-萘基)苯胺、液态受阻酚和受阻酚噻二唑衍生物中至少两种。
在本发明具体实施例中，所述BOG压缩机油组合物具体包括以下组分：
具有式Ⅰ结构的聚醚98.8％，N-(1-萘基)苯胺0.2％，液态受阻酚0.2％，0.1％改性磷酸酯，0.5％咪唑类衍生物，0.1％苯并三氮唑和0.1％三氮唑；
或包括具有式Ⅰ结构的聚醚97.7％，N-(1-萘基)苯胺0.5％，受阻酚噻二唑衍生物0.5％，1.0％咪唑类衍生物和0.3％甲基苯并三氮唑。
本发明提供了一种上述技术方案所述BOG压缩机油组合物的制备方法，包括以下步骤：
将具有式Ⅰ结构的聚醚、抗氧剂、腐蚀抑制剂和金属钝化剂在80～120℃和真空度<-0.80MPa下搅拌均匀，得到BOG压缩机油组合物。
本发明提供了一种BOG压缩机油组合物，以质量分数计，包括以下组分：具有式Ⅰ结构的聚醚93～99.85％，抗氧剂0.05～3.5％，腐蚀抑制剂0.05～2.5％和金属钝化剂0.05～1.0％。该BOG压缩机润滑油具有良好的黏温性能、良好的热氧化安定性、优良的润滑性能、较好的黏温性能、优异的抗腐蚀防锈性能，为BOG压缩机提供良好润滑、密封、防护、冷却等作用，同时，与碳氢化合物类气体接触具有低溶解特性，有效避免气体溶解产生油品黏度下降和吸入压力波动时形成泡沫，保证压缩机运行的可靠性。
具体实施方式
为了进一步说明本发明，下面结合实施例对本发明提供的一种BOG压缩机油组合物及其制备方法进行详细地描述，但不能将它们理解为对本发明保护范围的限定。
实施例1
将0.2g N-(1-萘基)苯胺、0.2g液态受阻酚抗氧剂；0.1g改性磷酸酯、0.5g咪唑类衍生物腐蚀抑制剂；0.1g苯并三氮唑、0.1g三氮唑金属钝化剂依次加入98.8g表1中所示的聚醚中，在100～110℃温度和真空度(＜-0.80MPa)下搅拌均匀，得到BOG压缩机油组合物。
实施例2
将0.5g N-(1-萘基)苯胺、0.5g受阻酚噻二唑衍生物抗氧剂；1.0g咪唑类衍生物腐蚀抑制剂；0.3g甲基苯并三氮唑金属钝化剂依次加入97.7g表1中所示的聚醚中，在100～110℃温度和真空度(＜-0.80MPa)下搅拌均匀，得到BOG压缩机油组合物。
对比例1
将0.3g N-(1-萘基)苯胺、0.3g液态受阻酚抗氧剂；0.3g改性磷酸酯、0.6g咪唑类衍生物腐蚀抑制剂；0.2g苯并三氮唑、0.2g甲基苯并三氮唑金属钝化剂依次加入98.1g表1中所示的聚醚中，在100～110℃温度和真空度(＜-0.80MPa)下搅拌均匀，得到BOG压缩机油组合物。
对比例2
将1.0g液态受阻酚抗氧剂；0.2g十二烯基丁二酸衍生物腐蚀抑制剂；0.3g苯并三氮唑金属钝化剂依次加入98.5g表1中所示的聚醚中，在100～110℃和真空度(＜-0.80MPa)下搅拌均匀，得到BOG压缩机油组合物。
表1实施例和对比例的原料组成及产品性能测试结果
Figure BDA0003730141970000031
Figure BDA0003730141970000041
由以上实施例可知，本发明提供了一种BOG压缩机油组合物，以质量分数计，包括以下组分：具有式Ⅰ结构的聚醚93～99.85％，抗氧剂0.05～3.5％，腐蚀抑制剂0.05～2.5％和金属钝化剂0.05～1.0％。该BOG压缩机润滑油具有良好的黏温性能、良好的热氧化安定性、优良的润滑性能、较好的黏温性能、优异的抗腐蚀防锈性能(吸湿性)，为BOG压缩机提供良好润滑、密封、防护、冷却等作用，同时，与碳氢化合物类气体接触具有低溶解特性，有效避免气体溶解产生油品黏度下降和吸入压力波动时形成泡沫，保证压缩机运行的可靠性。
以上所述仅是本发明的优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也应视为本发明的保护范围。

Claims (7)

1.一种BOG压缩机油组合物，以质量分数计，包括以下组分：
具有式Ⅰ结构的聚醚93～99.85％，抗氧剂0.05～3.5％，腐蚀抑制剂0.05～2.5％和金属钝化剂0.05～1.0％；
Figure FDA0003730141960000011
所述R1为正丁基；所述R2和R4均为甲基；所述R3为H；
10≤n≤200；10≤m≤200。
2.根据权利要求1所述的BOG压缩机油组合物，其特征在于，所述腐蚀抑制剂选自改性磷酸酯和咪唑类衍生物的混合物；或咪唑类衍生物。
3.根据权利要求1所述的BOG压缩机油组合物，其特征在于，所述金属钝化剂选自苯并三氮唑和三氮唑的混合物；或甲基苯并三氮唑。
4.根据权利要求1所述的BOG压缩机油组合物，其特征在于，所述抗氧剂选自N-(1-萘基)苯胺、液态受阻酚和受阻酚噻二唑衍生物中至少两种。
5.根据权利要求1所述的BOG压缩机油组合物，其特征在于，10≤n≤30，10≤m≤30。
6.根据权利要求1所述的BOG压缩机油组合物，其特征在于，所述BOG压缩机油组合物具体包括以下组分：
具有式Ⅰ结构的聚醚98.8％，N-(1-萘基)苯胺0.2％，液态受阻酚0.2％，0.1％改性磷酸酯，0.5％咪唑类衍生物，0.1％苯并三氮唑和0.1％三氮唑；
或包括具有式Ⅰ结构的聚醚97.7％，N-(1-萘基)苯胺0.5％，受阻酚噻二唑衍生物0.5％，1.0％咪唑类衍生物和0.3％甲基苯并三氮唑。
7.一种权利要求1～6任一项所述BOG压缩机油组合物的制备方法，包括以下步骤：
将具有式Ⅰ结构的聚醚、抗氧剂、腐蚀抑制剂和金属钝化剂在80～120℃和真空度<-0.80MPa下搅拌均匀，得到BOG压缩机油组合物。
CN202210790837.5A 2022-07-05 2022-07-05 一种bog压缩机油组合物及其制备方法 Pending CN114940921A (zh)

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Citations (2)

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Publication number Priority date Publication date Assignee Title
CN112210427A (zh) * 2020-10-15 2021-01-12 中国石油化工股份有限公司 一种空压机油组合物及制备方法
CN113817526A (zh) * 2021-10-29 2021-12-21 中国石油化工股份有限公司 一种高温链条油组合物及其制备方法

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112210427A (zh) * 2020-10-15 2021-01-12 中国石油化工股份有限公司 一种空压机油组合物及制备方法
CN113817526A (zh) * 2021-10-29 2021-12-21 中国石油化工股份有限公司 一种高温链条油组合物及其制备方法

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