Shell HiFi™ Extraction trays. Suitable for systems with interfacial tensions below 25 dyne/cm and large phase ratios ; To enhance capacity of existing extractors ; To increase capacity by up to 25% compared with rotating disc contactors ; To increase capacity by up to 15% compared with conventional extraction trays

Why use Shell CS and HiFi tray technology? Very high capacity and efficiency (20% higher capacity than conventional trays). Suitable for increasing existing plant capacity. Application at low tray spacing can provide lower reboiler and condenser duties. Proven technology. Excellent reliability based on actual operating experience.

Section and HiFi trays. These trays incorporate two additional features that boost tray capacity: • more effi cient downcomer designs using Crown Inlet Devices CIDTM at downcomer entrance to enhance vapor/ liquid disengagement and increase the liquid handling capacity by up to 20% over normal Calming Section and HiFi trays

The prominent feature of the HiFi tray is its long weir length which enables high liquid loaded systems (such as C 2 Splitters) to operate at reduced weir loading and achieve much higher capacity than conventional multi-pass trays.

includes Shell high performance trays such as the SHELL HIFI* trays, ideal for high liquid load applications, and SHELL CONSEP* Plus trays with proven ultra- system capabilities.

Shell HiFi high capacity trays have recently been tested by an independent research consortium. This presentation will present results obtained at 12” and 24” tray spacing using the iso-butane/n-butane test system at 165, 300 and 400 psia system pressures.

This article discusses the unique requirements for high liquid tray applications as well as the different tray designs and selection criteria that can be used to operate successfully in those systems.

downcomer technology for increased liquid capacity. Our proprietary high performance trays should be<br /> stage. The MVG tray deck offers better turndown<br /> 0.34 and 1.65 bar pressure. Measurements showed up<br /> capacity is required. The smaller size opening compared<br /> chordal downcomer trays. They offer industry proven<br />

Shell HiFi Extraction Trays. Shell HiFi Extraction trays are particularly well suited for systems with interfacial tensions below 25 dyne/cm and large phase ratios. They can be used to enhance the capacity of existing extractors in aromatics extraction, caustic treating and lube oil applications.

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