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Ask Norm Lieberman
Tuesday, March 31, 2015
CRUDE DISTILLATION; HOW TO ADJUST PUMPAROUND FLOWS
CRUDE DISTILLATION; HOW TO ADJUST PUMPAROUND FLOWS
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Tuesday, March 17, 2015
DISTILLATION TRAY DOWNCOMER BACKUP AND LIQUID FLOODING
"Norm, what causes downcomer backup in distillation towers?"
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Monday, March 16, 2015
CONDENSATE BACK-UP IN CONDENSERS; THE EFFECT OF SUB-COOLING
"Norm, does the cool condenser outlet temperature indicate good condenser performance?"
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Thursday, March 12, 2015
CENTRIFUGAL PUMP HEAD VS FLOW PERFORMANCE CURVES
"Norm, does the discharge pressure from a centrifugal pump
always increase when the discharge valve is throttled back?"
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Wednesday, March 11, 2015
EFFECT OF REFLUX ON FRACTIONATOR TOP TEMPERATURE
"Norm, is it always true that increasing reflux will decrease tower top temperature?"
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Tuesday, March 10, 2015
STEAM CONDENSATE DRAINAGE FROM REBOILERS BLOWING CONDENSATE SEAL
"Norm, sometimes when I open my reboiler steam condensate outlet valve,
the reboiler duty decreases. What causes this?"
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