Transcription of Understand vacuum-system fundamentals
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Understand vacuum-system fundamentals
Understand vacuum - system fundamentalsProperly operating ejectors and condensers is important in maximizing vacuum tower gas-oil yieldG. R. MARTIN, PROCESS CONSULTING SERVICES, Grapevine, TexasJ. R. LINES, GRAHAM MANUFACTURING CO., INC., Batavia, New YorkS. W. GOLDEN, Glitsch, Inc., Dallas, TexasCrude vacuum unit heavy vacuum gas-oil (HVGO) yield issignificantly impacted by ejector- system performance, espe-cially at conditions below 20 mmHg absolute pressure. A deepcutvacuum unit, to reliably meet the yields, calls for proper design ofall the major pieces of equipment.
GAS-OIL YIELDS The gas-oil yield on a crude vacuum column is controlled by feed enthalpy. If more heat can be added to the reduced crude at a given
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