Lube-Tech PUBLISHED BY LUBE: THE EUROPEAN LUBRICANTS INDUSTRY MAGAZINE
Field experience- with Shell Mysella S5 S has reconfirmed the potential and the benefits of this lubricant for customers who operate engines on landfill gas, by demonstrating very long oil life and good control of combustion chamber deposits.
Acknowledgement
The authors wish to thank the following persons for their contribution to this paper:
• Claudio Cocco, Project Engineer, Shell Global Solutions (Deutschland) GmbH
• Stefan Schleper, Senior Research Technologist, Shell Global Solutions (Deutschland) GmbH
• Luis Garcia, Lubes Development Chemist, Shell Global Solutions (Deutschland) GmbH
• Jerry Hammett, Marine & Power Technology Group Manager, Shell Global Solutions (Deutschland) GmbH
• Peter Morrey, Senior Lubricants Technical Advisor, Shell UK Oil Products
• Mario Campi, Key Account Manager, Shell Italy S.p.A • Peter Schippers, Technical Team Leader, Shell Nederland Verkoop Maatschappij B.V.
• Ruediger Heine, Lubricants Technical Advisor, Shell Deutschland Schmierstoff GmbH
• Peter Busse, Lubricant Development Manager, Shell Global Solutions (Deutschland) GmbH
References 1. Presentation “Economic Utilization Of Biomass and Municipal Waste for Power Generation”, GE-Jenbacher, June 13 2007
2.
http://www.hkc22.com/
biogas.html 3. “GIA Industries White Paper: How to Profit from Biogas Market Developments”, Global Intelligence Alliance, June 2010.
4. Technical Instruction “Limit levels for used oil in GE Jenbacher gas engines”, TI No 1000-0099B, GE-Jenbacher, January 2009
5. Service Bulletin “Cat Gas Engine Lubricant, Fuel and Coolant Recommendations”, SEBU 6400-05, Caterpillar, November 2010
Appendix 1:
Field trial installation data Trial engine:
GE-Jenbacher J312 GSC21 installed on a landfill site in Italy Engine rating: 646 kWm Engine speed 1500 rpm Genset rating: 625 kWe Actual load: 550 kWe Oil volume: 320 liter
Oil consumption: 0.12 liter/hr, i.e. 0.18 g/kWh The installation is equipped with:
Enlarged oil volume (320 liter) Oxidation catalyst
28 LUBE MAGAZINE NO.125 FEBRUARY 2015
Appendix 2: Oil analysis results of the field trials of the candidate formulations
No.96 page 3
The landfill gas is not cleaned before going into the engine. The fuel gas is relatively mild when considering acids. The Si B value (as per GE-Jenbacher calculation) is 0.04, twice as high as GE-Jenbacher’s limit, but in comparison with some other landfill sites, it is still quite moderate.
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