A case study involving the revamp of two rotating disc contactors in aromatics service highlights the most important design considerations for enhancing capacity and efficiency in high-performance extraction sieve trays.
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The proper evaluation for new FCCU cyclone equipment or the risk assessment can substantially impact profitability. The combination of assumed pressure, corrosion rates, mechanical loading and fluctuating temperature must be taken into account.
Development in catalyst and internals technologies exploit the flexibility of the ULSD unit.
With the old trays in the scrap yard and no working drawings available, an amine still revamp called for engineering detective work.
Field data from eight gas treating plants show how tray design parameters can be selected to improve contactor performance.