A vertical cylindrical continuous decanter is to separate 44 gal/min of a liquid petroleum oil rom wash acid. The volume of wash acid is twice the volume of the liquid petroleum oil. The il is the continuous phase and at the operating temperature has a viscosity of 1.1 mPa.s and a density of 54.6 lb/ft³. The density of the acid is 72 lb/ft³. Compute (a) the volume of he decanter, (b) the liquid levels of the light and heavy liquids in the vessel and (c) the height of the heavy liquid overflow leg where the heavier liquid is discharged in an open atmosphere vith a pressure of 750 mmHg. Assume that the ends of the vessel are flat and that the ressel height is twice its diameter. Air space with a pressure of 780 mmHg on top of the ighter liquid is 1/4 the volume of the mixture.

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Author:Kreith, Frank; Manglik, Raj M.
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Chapter5: Analysis Of Convection Heat Transfer
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Problem 5.5P: Evaluate the dimensionless groups hcD/k,UD/, and cp/k for water, n-butyl alcohol, mercury, hydrogen,...
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A vertical cylindrical continuous decanter is to separate 44 gal/min of a liquid petroleum oil
from wash acid. The volume of wash acid is twice the volume of the liquid petroleum oil. The
oil is the continuous phase and at the operating temperature has a viscosity of 1.1 mPa.s
and a density of 54.6 lb/ft³. The density of the acid is 72 lb/ft³. Compute (a) the volume of
the decanter, (b) the liquid levels of the light and heavy liquids in the vessel and (c) the height
of the heavy liquid overflow leg where the heavier liquid is discharged in an open atmosphere
with a pressure of 750 mmHg. Assume that the ends of the vessel are flat and that the
vessel height is twice its diameter. Air space with a pressure of 780 mmHg on top of the
lighter liquid is 1/4 the volume of the mixture.
Transcribed Image Text:A vertical cylindrical continuous decanter is to separate 44 gal/min of a liquid petroleum oil from wash acid. The volume of wash acid is twice the volume of the liquid petroleum oil. The oil is the continuous phase and at the operating temperature has a viscosity of 1.1 mPa.s and a density of 54.6 lb/ft³. The density of the acid is 72 lb/ft³. Compute (a) the volume of the decanter, (b) the liquid levels of the light and heavy liquids in the vessel and (c) the height of the heavy liquid overflow leg where the heavier liquid is discharged in an open atmosphere with a pressure of 750 mmHg. Assume that the ends of the vessel are flat and that the vessel height is twice its diameter. Air space with a pressure of 780 mmHg on top of the lighter liquid is 1/4 the volume of the mixture.
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