Extending Equipment Life in Sustainable Aviation Fuel Production

In any Sustainable Aviation Fuel (SAF) production facility, equipment reliability is critical. Unplanned maintenance, premature component failure and unexpected shutdowns can significantly impact production efficiency, operating costs and overall plant performance.

As SAF production capacity continues to grow worldwide, operators are increasingly focused on maximising the lifespan of high-value process equipment while reducing maintenance interventions wherever possible.

At Diffusion Alloys, our advanced diffusion coating technologies help customers achieve exactly that. By protecting critical components against oxidation, corrosion and wear, our coatings enable longer operating campaigns, improved plant availability and lower whole-life ownership costs.

The Cost of Component Failure

Every component operating within a high-temperature process environment has a finite service life. However, without appropriate surface protection, degradation can occur much sooner than expected.

Premature failure can result in:

• Unplanned plant shutdowns
• Reduced production capacity
• Increased maintenance labour
• Expensive component replacement
• Production delays
• Increased operational risk

In continuous processing industries, even relatively short periods of downtime can have significant financial consequences.

Extending component life is therefore about much more than reducing replacement costs – it’s about improving the overall efficiency and reliability of the production process.

Why Components Degrade

Equipment used throughout Sustainable Aviation Fuel production is exposed to several degradation mechanisms simultaneously.

These commonly include:

• High-temperature oxidation
• Corrosion
• Carburisation
• Sulphidation
• Thermal fatigue
• Erosion
• Mechanical wear

Over time these conditions gradually weaken components, reducing performance and increasing the likelihood of failure.

Selecting the correct surface engineering solution helps minimise these effects while maintaining equipment integrity for longer.

How Diffusion Coatings Extend Service Life

Unlike conventional coatings that form a separate surface layer, diffusion coatings become part of the parent material through a metallurgical bonding process.

This creates a durable protective layer that remains effective under prolonged exposure to high temperatures and aggressive industrial environments.

The benefits include:

• Slower oxidation rates
• Improved corrosion resistance
• Increased wear resistance
• Reduced material loss
• Greater thermal stability
• Longer inspection intervals
• Extended component life

By reducing the rate at which components degrade, operators can safely extend maintenance intervals and reduce the frequency of replacement.

Improving Plant Reliability

Reliable equipment is essential for maintaining efficient production.

Every maintenance shutdown introduces additional cost, whether through lost production, labour requirements or replacement parts.

Protecting critical components allows operators to:

• Improve operational reliability
• Reduce unexpected failures
• Increase equipment availability
• Support planned maintenance schedules
• Improve production efficiency
• Maximise return on capital equipment

For facilities operating continuously throughout the year, even small improvements in reliability can deliver significant commercial benefits.

Lower Whole-Life Costs

When evaluating industrial equipment, purchase price represents only a small proportion of the total cost of ownership.

Maintenance, repairs, downtime and replacement components often account for the largest ongoing expenses throughout a plant’s operational life.

By extending service life and reducing maintenance requirements, diffusion coatings help lower whole-life costs by:

• Reducing replacement frequency
• Lowering maintenance expenditure
• Reducing production interruptions
• Improving asset utilisation
• Extending the operational life of high-value equipment

This allows manufacturers to achieve greater value from existing assets while improving long-term operational efficiency.

Supporting New and Existing Equipment

Diffusion coatings are suitable for both newly manufactured components and existing equipment undergoing refurbishment.

Whether supplying new process plants or maintaining established facilities, applying the correct coating technology can significantly improve long-term performance.

Typical applications include:

• Reformer tubes
• Heat exchangers
• Furnace components
• Reactor internals
• Process pipework
• Burner assemblies
• Catalyst support structures

Our engineering team works closely with customers to recommend coating solutions based on each component’s operating environment and performance requirements.

Why Choose Diffusion Alloys?

For over 60 years, Diffusion Alloys has helped customers operating in high-temperature process industries improve equipment performance and maximise component life.

Our engineering expertise, combined with proven diffusion coating technologies, enables customers to reduce maintenance, improve reliability and lower operating costs across a wide range of industrial applications.

Whether you’re designing new Sustainable Aviation Fuel facilities or extending the life of existing assets, we provide tailored coating solutions backed by decades of technical experience.

To learn more about how diffusion coatings support Sustainable Aviation Fuel production, visit our Sustainable Aviation Fuel page or contact our engineering team to discuss your application.