Cooling Function

SAF production through hydroprocessing of bio-feedstocks operates at 300-400°C converting oils into jet fuel range hydrocarbons. Product exits reactors at elevated temperature requiring cooling to 30-50°C for safe storage meeting aviation fuel specifications. The trim cooler provides final temperature reduction delivering product at controlled conditions preventing vapor formation and ensuring flash point compliance.

Design Configuration

Shell-and-tube construction with SAF product on tube side enabling maintenance access and cooling medium on shell side. ERGIL engineers coolers based on product flow rate, inlet temperature after upstream heat recovery, target outlet temperature, and available cooling utilities with typical duties 1-10 MMBTU/hr. Multiple tube passes optimize efficiency while maintaining low pressure drop.

Cooling Methods

Water-cooled units using cooling tower water provide compact efficient design. Air-cooled exchangers employ finned tubes with fans for locations prioritizing water conservation. Material selection addresses SAF paraffinic characteristics and trace contaminants with operating pressures 50-300 psig. Stainless steel construction resists corrosion ensuring long service life.

Applications

Dedicated SAF production facilities converting waste oils and fats, renewable jet fuel plants processing bio-feedstocks, refinery co-processing units blending renewable feeds with petroleum streams, and integrated biorefineries producing aviation fuel alongside renewable diesel across capacities 2,000-50,000 BPD production rates.

Control Integration

Temperature control modulates cooling medium flow maintaining precise outlet temperature critical for aviation fuel specifications. Prevents overcooling affecting product freeze point characteristics. Continuous monitoring ensures compliance with stringent jet fuel standards. Integration with upstream heat recovery maximizes overall energy efficiency.

Performance Standards

Design per ASME Section VIII with materials suitable for clean hydrocarbon service. Stainless steel tubes and shells resist corrosion from SAF product. Construction accommodates thermal cycling during startup and shutdown. Hydrostatic testing validates integrity. Documentation includes material certifications meeting aviation industry requirements.

Performance Benefits

Ensures SAF meets strict aviation fuel handling and safety specifications. Enables efficient heat integration recovering energy before final cooling. Protects storage systems from thermal damage. Reliable operation maintains consistent product quality meeting ASTM D7566 and other aviation fuel standards. Minimal maintenance with periodic inspection schedules.

ERGIL SAF trim coolers deliver dependable final cooling for sustainable aviation fuel ensuring specification compliance and safe storage in renewable jet fuel production facilities.