Protecting EAL oils in demanding applications
Environmentally Acceptable Lubricants (EALs) are widely used in marine and industrial systems where environmental protection and regulatory compliance are critical. These biodegradable oils reduce the impact of leaks, but they are also more chemically sensitive than mineral oils. Water ingress, particle contamination, and elevated temperatures can quickly trigger hydrolysis and oxidation, leading to rising acidity, loss of lubricating properties, and accelerated component wear.
To protect EAL systems, oil condition must be actively controlled. CJC offline filtration continuously removes water, fine particles, and oxidation by-products without disturbing system operation. By stabilising the oil and limiting chemical degradation, CJC helps prevent seal damage, extend oil service life, and maintain reliable operation in stern tubes, hydraulic systems, and other EAL-critical applications.
Industry insight, why EAL oils fail in real operation
EAL lubricants are environmentally responsible, but far more sensitive to contamination than mineral oils. In daily operation, small changes in oil condition can quickly lead to degradation and component risk.
Water ingress is unavoidable
EAL systems are exposed to condensation, seals, and surrounding water. Even small water levels accelerate oil ageing and reduce lubrication performance.
Hydrolysis drives acidity
Oxidation forms sludge and varnish
Particles amplify wear and oil ageing
Without active oil condition control, these effects compound quickly. Clean, dry oil is essential to keep EAL systems stable and reliable.
How CJC stabilises EAL oils in real operation
CJC protects EAL lubricants by controlling the factors that cause premature oil failure. Instead of reacting to oil degradation after it occurs, CJC offline filtration continuously maintains oil cleanliness and dryness, keeping biodegradable oils chemically stable throughout their service life.
How the Offline Principle Works
Outcome for EAL systems
- Extended EAL oil service life
- Reduced seal wear and leakage risk
- Fewer unplanned stops and oil changes
- Stable, predictable system operation
Key Turbine Systems That Depend on Clean Lube Oil
Stern tubes and shaft lines
Challenge: Continuous seawater ingress through seals leads to hydrolysis, rising acidity, and accelerated seal and bearing wear.
Result: Cleaner, drier oil with reduced acid formation, extending seal life and reducing the need for oil replacement.
Hydraulic systems
Challenge: Condensation and temperature fluctuations introduce water and oxidation products, causing sticking valves and unstable operation.
Result: Stable oil condition with fewer deposits, improving valve reliability and reducing unplanned stops.
Gearboxes and thrusters
Challenge: Water contamination and wear particles increase abrasive wear and accelerate oil degradation under load.
Result: Lower particle levels and controlled water content, supporting longer oil and component lifetime.
Bearings and auxiliary systems
Challenge: Fine particles and oxidation residues circulate continuously, increasing wear and shortening service intervals.
Result: Reduced contamination levels, more predictable maintenance intervals, and improved system availability.
Proof and documented results from EAL applications
Reduced water content in operation
CJC systems are documented to continuously remove free and emulsified water from oil, helping EAL users keep water levels within OEM and oil supplier limits, even in moisture-exposed environments.
Extended oil lifetime
Across multiple oil types and applications, CJC filtration is documented to extend oil lifetime by a factor of 3 to 4 by removing particles, water, and oxidation by-products before degradation accelerates.
Slower TAN increase and stabilised oil chemistry
By limiting hydrolysis and oxidation drivers, CJC filtration has shown reduced TAN development over time compared to systems relying only on in-line filtration, supporting longer oil service intervals.
Improved component reliability
Clean, dry oil has consistently been shown to reduce seal wear, valve sticking, and abrasive damage, leading to fewer oil-related failures and more predictable maintenance planning.
Keep EAL systems stable and compliant
Protect EAL oils from degradation, reduce seal wear and unplanned stops, and extend oil life through continuous offline filtration that keeps the oil clean, dry, and stable.
No obligation. We start with an oil condition review to identify your improvement potential.
EAL oils
Protecting EAL oils in demanding applications
Environmentally Acceptable Lubricants (EALs) are widely used in marine and industrial systems where environmental protection and regulatory compliance are critical. These biodegradable oils reduce the impact of leaks, but they are also more chemically sensitive than mineral oils. Water ingress, particle contamination, and elevated temperatures can quickly trigger hydrolysis and oxidation, leading to rising acidity, loss of lubricating properties, and accelerated component wear.
To protect EAL systems, oil condition must be actively controlled. CJC offline filtration continuously removes water, fine particles, and oxidation by-products without disturbing system operation. By stabilising the oil and limiting chemical degradation, CJC helps prevent seal damage, extend oil service life, and maintain reliable operation in stern tubes, hydraulic systems, and other EAL-critical applications.
Why EAL oils fail in real operation
EAL lubricants are environmentally responsible, but far more sensitive to contamination than mineral oils. In daily operation, small changes in oil condition can quickly lead to degradation and component risk.
Water ingress is unavoidable
EAL systems are exposed to condensation, seals, and surrounding water. Even small water levels accelerate oil ageing and reduce lubrication performance.
Hydrolysis drives acidity
Water reacts with ester-based oils, forming acids that attack seals and metal surfaces. Rising acidity shortens oil life and increases leakage risk.
Oxidation forms sludge and varnish
Heat and oxygen cause biodegradable oils to oxidise faster, forming sludge and varnish that disturb flow and component function.
Particles amplify wear and oil ageing
Dirt and wear debris circulate continuously, accelerating abrasion and further speeding up oil degradation.
Centrifugal Separator
|
CJC® Filtration
| |
|---|---|---|
Energy Consumption
|
High (heating + rotating bowl)
|
Low (3% compared to Centrifuge)
|
Maintenance
|
Daily supervision required
|
Minimal, periodic filter change
|
Waste Generation
|
Several tonnes of sludge annually
|
Dry filter element only
|
Heating |
Required | None require |
CO₂ Impact
|
High (energy intensive)
|
Low (97% reduction)
|
Compliance |
Adds to CII |
Up to 2% CII improvement |
How CJC stabilises EAL oils in real operation
Proof and documented results from EAL applications
Reduced water content in operation
CJC systems are documented to continuously remove free and emulsified water from oil, helping EAL users keep water levels within OEM and oil supplier limits, even in moisture-exposed environments.
Extended oil lifetime
Across multiple oil types and applications, CJC filtration is documented to extend oil lifetime by a factor of 3 to 4 by removing particles, water, and oxidation by-products before degradation accelerates.
Slower TAN increase and stabilised oil chemistry
By limiting hydrolysis and oxidation drivers, CJC filtration has shown reduced TAN development over time compared to systems relying only on in-line filtration, supporting longer oil service intervals.
Improved component reliability
Clean, dry oil has consistently been shown to reduce seal wear, valve sticking, and abrasive damage, leading to fewer oil-related failures and more predictable maintenance planning.
Clean Oil Is Not a Recommendation.
It Is a Reliability Strategy.
Understand contamination mechanisms, ISO codes, water control, and how to extend oil and component lifetime.
Key turbine systems that depend on clean lube oil
Stern tubes and shaft lines
Challenge: Continuous seawater ingress through seals leads to hydrolysis, rising acidity, and accelerated seal and bearing wear.
Result: Cleaner, drier oil with reduced acid formation, extending seal life and reducing the need for oil replacement.
Hydraulic systems
Challenge: Condensation and temperature fluctuations introduce water and oxidation products, causing sticking valves and unstable operation.
Result: Stable oil condition with fewer deposits, improving valve reliability and reducing unplanned stops.
Gearboxes and thrusters
Challenge: Water contamination and wear particles increase abrasive wear and accelerate oil degradation under load.
Result: Lower particle levels and controlled water content, supporting longer oil and component lifetime.
Bearings and auxiliary systems
Challenge: Fine particles and oxidation residues circulate continuously, increasing wear and shortening service intervals.
Result: Reduced contamination levels, more predictable maintenance intervals, and improved system availability.
Improve Gearbox Reliability with Clean Oil
Clean gear oil is one of the easiest and most cost-effective ways to extend gearbox life, reduce downtime and keep operations running predictably. Start with an oil condition review and a practical filtration strategy tailored to your system.
No obligation, we start with a condition review and clear recommendations.