Oxidative degradation and stabilisation of mineral oil based lubricants

Rasberger, M.

doi:10.1007/978-94-017-1021-3_4

Cited by 37 publications

(38 citation statements)

References 24 publications

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“…Remaining Useful Life Evaluation Routine (RULER) test is used to quantify the remaining concentration of antioxidants by comparing the voltammetric response of fresh oil with the used oil [20]. RULER results showed the phenol antioxidant was consumed much faster than the amine antioxidant [23].…”

Section: Discussionmentioning

confidence: 99%

Composition and degradation of turbine oil sludge

Liu¹,

Wang²,

Zhang

et al. 2016

J Therm Anal Calorim

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Sludge is an inevitable by-product of turbine oil during the operation of lubricating turbines. However, there are few reports of the detailed analytical results of the sludge. In addition, no global specification exists to evaluate the sludge formation from turbine oils. Hence, it is critical to analyze the contents of the sludge. In this study, we investigate both fresh and in-service (contains sludge) turbine oil based on ASTM standards. In-service turbine oil was first washed by petroleum ether to obtain the sludge and then characterized by FTIR, SEM, TG and EDAX. We found that the main compositions of sludge were C, O and N, while metals were \4 mass %. The analytical results show that antioxidant, defoamer, antirust and demulsifier are possible origins for the formation of sludge, which would be beneficial to decrease the sludge for the formulation of turbine oil.

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Section: Discussionmentioning

confidence: 99%

Composition and degradation of turbine oil sludge

Liu¹,

Wang²,

Zhang

et al. 2016

J Therm Anal Calorim

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“…Oil quality monitoring is often used to follow the progress of deterioration and determine when an oil change is needed (105,106). Figure 5 shows the way hindered phenols react with peroxide radicals to terminate the oxidation chain reaction (103,104). Chemicals used in this process include (102,103,107,108) …”

Section: Oxidation Inhibitors: Antioxidants Hydrocarbons and Manymentioning

confidence: 99%

“…Each functions via a different mechanism, in a different temperature range, and at different rates. Each stabilizes different species, and one may act to regenerate another (103)(104)(105).…”

Section: Oxidation Inhibitors: Antioxidants Hydrocarbons and Manymentioning

confidence: 99%

“…Examples of aromatic amine antioxidants include alkylated diphenylamines (ADPA), phenyl alpha diphenyl amine (PANA), alkyl-substituted PANA, and trimethyl quinoline derivatives (99,103,104).…”

Section: Oxidation Inhibitors: Antioxidants Hydrocarbons and Manymentioning

confidence: 99%

“…They act at both the initiation and propagation steps and are effective at lower concentrations and over a wider temperature range than are the hindered phenols (102)(103)(104).…”

Section: Oxidation Inhibitors: Antioxidants Hydrocarbons and Manymentioning

confidence: 99%

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Lubrication and Lubricants

Gresham

Canter²,

Zabawski³

et al. 2015

Kirk-Othmer Encyclopedia of Chemical Technology

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Lubrication is a process in which a lubricant is placed between rubbing surfaces to control friction and reduce wear. This article outlines the nature of the frictional force, the wear process, the role of surface characteristics, and the mechanisms of lubrication. The manufacture and classification of lubricating oil base stocks, including refined petroleum stocks, chemical base stocks, stocks synthesized from other chemicals, and vegetable oils, are covered. The composition and function of lube oil additives are described for enhancing oxidation stability, corrosion resistance, wear reduction, friction modifying, viscosity–temperature characteristics, and other important performance characteristics. The performance characteristics of lubricating oils for selected applications are discussed, including automotive engine oils, diesel engine oils, automatic transmission fluids, automotive gear oils, jet engine lubes, and industrial turbine oils. Metalworking fluids, lubricating grease, solid‐film lubricants, and lubrication in extreme environments are covered, as are the lubricants market and environmental and health concerns.

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Lubricant Additives and Their Evaluation

Srivastava¹

2014

Developments in Lubricant Technology

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Oxidative degradation and stabilisation of mineral oil based lubricants

Cited by 37 publications

References 24 publications

Composition and degradation of turbine oil sludge

Composition and degradation of turbine oil sludge

Lubrication and Lubricants

Lubricant Additives and Their Evaluation

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