Diesel engine lubrication with poor quality residual fuel
The quality of marine residual fuel is declining. This is being caused by a gradual trend towards production of heavier crudes and increased residuum conversion processes in refineries to meet light product demand while holding down crude runs. Additionally, more stringent inland fuel sulfur regulations have caused the higher sulfur residues to be used for marine residual fuel blending. Engine manufacturers are making major efforts in design so that their engines can burn these fuels at high efficiency with minimum adverse effects. The oil industry is developing improved lubricants to reduce as much as possible the increased wear and deposit formation caused by these poor quality fuels. To guide the development of improved lubricants, knowledge is required about the impact of the main fuel characteristics on lubrication. This paper summarizes work conducted to assess the impact of fuel sulfur, Conradson carbon and asphaltenes on wear and deposit formation in engines representative of full scale crosshead diesel engines and medium speed trunk piston engines. Results obtained with improved lubricants in these engines are reviewed.
- Research Organization:
- Chevron Central Laboratories, Rotterdam
- OSTI ID:
- 5513765
- Journal Information:
- Am. Soc. Mech. Eng., (Pap.); (United States), Journal Name: Am. Soc. Mech. Eng., (Pap.); (United States) Vol. 83-DGP-11; ISSN ASMSA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
330102* -- Internal Combustion Engines-- Diesel
ASPHALTENES
ASPHALTS
BITUMENS
CARBON
CONTROL
DEPOSITS
DESIGN
DIESEL ENGINES
EFFICIENCY
ELEMENTS
ENERGY SOURCES
ENGINES
FOSSIL FUELS
FUEL OILS
FUELS
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
LIQUID FUELS
LUBRICANTS
LUBRICATION
MANUFACTURERS
MIXING
NONMETALS
OILS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PETROLEUM
PETROLEUM FRACTIONS
PETROLEUM PRODUCTS
PETROLEUM RESIDUES
PISTONS
QUALITY CONTROL
REGULATIONS
RESIDUAL FUELS
SCALING
SHIPS
SULFUR
TAR
WEAR