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Process Equipment and Plant Design

Process Equipment and Plant Design
In the agitators, the power required will be changed with the increase of diameter of agitator (D) as

D⁵
D
D⁹
D²

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Process Equipment and Plant Design
__________ tray arrangement is recommended for distillation column having diameter upto 4 ft.

Radial flow
Split flow
Cross flow
Cascade

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Process Equipment and Plant Design
In perforated plate towers, the

Hole sizes may be around 1/8" or 3/16"
Total hole area may be around 6 to 15% of tower cross-sectional area
All of these
Pressure drop is less compared is similar bubble cap towers

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Process Equipment and Plant Design
Optimum reflux ratio in a continuous distillation column is determined by the

None of these
Total cost consideration (fixed cost of the column plus the cooling water & steam cost)
Flooding limit of the column
Maximum permissible vapour velocity

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Process Equipment and Plant Design
Cooling water fouling factors vary in the range of 0.001 to 0.003

(W/m².°K)⁻¹
(kcal/hr. m. °C)⁻¹
(BTU/hr.ft² . °F)⁻¹
(kcal/hr.m² .°C)⁻¹

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Process Equipment and Plant Design
Column support for the roof of cylindrical storage tank must be provided for

Small diameter tall tanks
Large diameter tanks
All of these
Small diameter tanks

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