Process Equipment and Plant Design Larger depth of liquid on the trays of a distillation column Results in higher pressure drop per tray Both A & B Leads to high tray efficiency Neither A nor B Results in higher pressure drop per tray Both A & B Leads to high tray efficiency Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Overall distillation column efficiency for most of the refinery columns can be given by (for μ = 0.07 - 1.4 cp and relative volatility < 4) (where η = overall column efficiency, % μ = molal average viscosity of feed at average column temperature and pressure, cp Δp = pressure drop per tray, psi) Η = 24.6 (Δp/μ) Η = 17 - 61.1 log μ Η = 0.25 log μ - 1.67 Η = 1.66 - 0.25 log μ Η = 24.6 (Δp/μ) Η = 17 - 61.1 log μ Η = 0.25 log μ - 1.67 Η = 1.66 - 0.25 log μ ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design 1.2 to 3.8 cms is the value of the All of these Skirt clearance for bubble caps Downcomer liquid seal in case of a balanced tray design Static submergence in case of a bubble cap tray for column operating under pressure (≥ 1 atm.) All of these Skirt clearance for bubble caps Downcomer liquid seal in case of a balanced tray design Static submergence in case of a bubble cap tray for column operating under pressure (≥ 1 atm.) ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design In packed towers provided with saddle packing, liquid redistributors are positioned at every __________ times column diameter or 6 metres whichever is less. 20-25 43959 43864 44119 20-25 43959 43864 44119 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Log mean temperature difference in case of multi-pass shell and tube heat exchanger is always More than geometric mean value Both B & C More than arithmetic mean value Less than arithmetic mean value More than geometric mean value Both B & C More than arithmetic mean value Less than arithmetic mean value ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Excessive liquid gradient on a tray may result in the Gas blowing beneath cap skit All of these Back trapping Maldistribution of gas Gas blowing beneath cap skit All of these Back trapping Maldistribution of gas ANSWER DOWNLOAD EXAMIANS APP
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