CO2 as a Viscosity Index Improver for Wind Turbine Oils

Pohrer B, Zürcher M, Westerholt A, Bösmann A, Siebert D, Völkl J, Holweger W, Wehrum N, Arlt W, Wasserscheid P, Schlücker E (2015)

Publication Status: Published

Publication Type: Journal article, Original article

Publication year: 2015

Journal

Industrial & Engineering Chemistry Research American Chemical Society (ACS)

Publisher: ACS American Chemical Society

Book Volume: 54

Pages Range: 5810-5819

Journal Issue: 21

DOI: 10.1021/acs.iecr.5b00494

Abstract

A high viscosity index (VI) is crucial for lubricants in industrial gearboxes exposed to changing load or weather conditions. Especially in the field of wind turbine oil, viscosity indices of 150 or higher are demanded to reduce power losses and ensure reliability at the same time. In this context, the use of dissolved CO2 to improve viscositytemperature behavior has been investigated for task-specific, halogen-free ionic liquids and benchmarked against poly(alpha-olefins). By measuring the viscosity and density of the lubricants with dissolved CO2, it was proven that the VI can be increased significantly, even at moderate pressures. In addition, measurements and simulation on CO2 solubility and studies on corrosion and tribology under CO2 pressure are presented.

Authors with CRIS profile

Benjamin Pohrer Chair of Engineering Design (KTmfk) Manuel Zürcher Lehrstuhl für Prozessmaschinen und Anlagentechnik (iPAT) Antje Westerholt Lehrstuhl für Chemische Reaktionstechnik (CRT) Andreas Bösmann Lehrstuhl für Chemische Reaktionstechnik (CRT) Daniel Siebert Lehrstuhl für Thermische Verfahrenstechnik (TVT) Wolfgang Arlt Lehrstuhl für Thermische Verfahrenstechnik (TVT) Peter Wasserscheid Lehrstuhl für Chemische Reaktionstechnik (CRT) Eberhard Schlücker Lehrstuhl für Prozessmaschinen und Anlagentechnik (iPAT)

Involved external institutions

Schaeffler Technologies AG & Co. KG DE Germany (DE) Merck KGaA DE Germany (DE)

How to cite

APA:

Pohrer, B., Zürcher, M., Westerholt, A., Bösmann, A., Siebert, D., Völkl, J.,... Schlücker, E. (2015). CO2 as a Viscosity Index Improver for Wind Turbine Oils. Industrial & Engineering Chemistry Research, 54(21), 5810-5819. https://doi.org/10.1021/acs.iecr.5b00494

MLA:

Pohrer, Benjamin, et al. "CO2 as a Viscosity Index Improver for Wind Turbine Oils." Industrial & Engineering Chemistry Research 54.21 (2015): 5810-5819.

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