Process and apparatus for the preparation of a cylinder oil

Process for the operation of an internal combustion engine comprising the steps of:

• preparing a cylinder oil using a process for the production of a cylinder oil, said process for the production of a cylinder oil comprising the steps:
• providing a used oil,
• providing a fresh cylinder oil from a fresh cylinder oil storage compartment, and
• blending the used oil with the fresh cylinder oil in a blending apparatus,
• wherein the used oil has a lower TBN value than the fresh cylinder oil and wherein the cylinder oil and the fresh cylinder oil are all-loss cylinder oils for the use in crosshead diesel engines and comprise alkaline additives;
• and
• using the cylinder oil in the internal combustion engine.

Apparatus for the preparation of a cylinder oil, comprising

• a blending apparatus operable to blend used oil and fresh cylinder oil,
• an internal combustion engine comprising at least one cylinder,
• at least one compartment of the internal combustion engine that comprises used oil or at least one storage compartment comprising used oil, and
• at least one fresh cylinder oil storage compartment containing fresh cylinder oil,
• wherein the blending apparatus is in flow communication with
• the at least one compartment of the internal combustion engine that comprises used oil or at least one storage compartment comprising used oil,
• the at least one fresh cylinder oil storage compartment containing fresh cylinder oil, and
• at least one cylinder of an internal combustion engine,
• wherein the internal combustion engine is a two-stroke crosshead engine, and
• wherein the cylinder oil and the fresh cylinder oil are all-loss cylinder oils for the use in crosshead diesel engines and comprise alkaline additives.

Ship comprising an apparatus for the preparation of a cylinder oil, comprising

• a blending apparatus operable to blend used oil and fresh cylinder oil,
• an internal combustion engine comprising at least one cylinder,
• at least one compartment of the internal combustion engine that comprises used oil or at least one storage compartment comprising used oil, and
• at least one fresh cylinder oil storage compartment containing fresh cylinder oil,
• wherein the blending apparatus is in flow communication with
• the at least one compartment of the internal combustion engine that comprises used oil or at least one storage compartment comprising used oil,
• the at least one storage compartment for fresh cylinder oil, and
• at least one cylinder of an internal combustion engine,
• wherein the internal combustion engine is a two-stroke crosshead engine, and
• wherein the cylinder oil and the fresh cylinder oil are all-loss cylinder oils for the use in crosshead diesel engines and comprise alkaline additives.