Aromatics/Sorbex Separation
From UOP Equipment
UOP’s Rotary Valve Insures Sorbex Unit Reliability and High On-Stream Factor. The Sorbex family of processes utilize stationary, multi-bed adsorbent chambers in a unique process configuration to simulate moving bed, counter-current extraction. Key to the exacting performance of the process is the use of UOP’s Rotary Valve that sequences and directs the flows of feed, desorbent, and extract in and out of the multiple adsorbent beds. The UOP Rotary Valve is a hydraulically driven, rotating plate device that replaces the need for multiple separately controlled valves. The Rotary Valve is supplied by UOP in a variety of sizes to meet process and unit capacity requirements.
The UOP Rotary Valve is key to the economic efficiency of the various Sorbex processes for three fundamental reasons
- Process Performance – The RV allows maximum product purities and recoveries by optimal flow control throughout the unit, and due to optimal piping layouts with a single valve, minimizing liquid inventories outside the adsorbent beds
- Process Reliability and on-steam factor. The UOP RV provides greater overall reliability relative to individual valves and shorter time to on-spec product following unit restarts
- Lower Operating Costs – The UOP RV results in lower maintenance costs relative to banks of individual valves, and due to the process efficiency of the close-coupled RV and adsorbent chambers, lower desorbent circulation rates and resultant utility consumption
The UOP Rotary Valve works in conjunction with the...
The UOP Rotary Valve works in conjunction with the UOP proprietary Adsorbent Chamber Control System to monitor and control unit operation and to respond to dynamic changes in flow-rate or feedstock composition. On-spec, on-line, all-the-time performance drives unit profitability. Performance and operability have been proven with over a hundred commercial installations since the Sorbex process was first commercialized.
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