Apollo Screens’ Scale Trap Wedge Wire Screens are precision-engineered reactor internals designed for hydroprocessing units, including hydrotreaters and hydrocrackers. Installed above the catalyst bed or integrated with distributor trays, Apollo scale traps effectively capture metallic scale, rust, coke fines, and particulate debris before they reach the catalyst — significantly reducing pressure-drop rise and extending catalyst life.
Hydroprocessing feeds often contain contaminants generated from:
These solids accumulate at the top of the catalyst bed, leading to:
Global licensors and refiners recognize mechanical scale trapping as a critical first line of defence in fouling-prone reactors.
Apollo Screens delivers robust, high-open-area wedge wire scale traps that mechanically intercept and disperse solid contaminants before they plug the catalyst bed.
Why Wedge Wire?
While results vary by feed contamination level and trap sizing, properly designed Apollo scale traps have demonstrated:
Apollo Screens custom-engineers each scale trap based on reactor duty and feed characteristics.
Available Configurations
Slot Openings
Materials of Construction
Provide Apollo Screens with:
Our engineering team will recommend the optimal wedge wire scale trap design, complete with drawings and technical justification.
