The cross-sectional area for longitudinal flow of vapor will be the largest of the following: 1. An area equal to 10% of the vessel cross…
Category: Process Design
The minimum dimensions in Figure 300-5 are based on the experience and laboratory studies mentioned above. Use these dimensions or increase Dimension “C” if required…
Base design conditions and rates on examination of all likely plant operating cases. Provide flexibility for extreme operating conditions. A separator must not limit plant…
The following design procedure is based on successful experience, plus some laboratory studies which indicate the desirability of the several internal baffles. (See Figures 300-4…
A knitted wire mesh pad coalescer may be used to improve separation of water from the hydrocarbon phase (Figures 300-4 and 300-7). Applications are based…
Assume that a reflux drum operates at 100°F. The water leg should allow 100-micron oil droplets to “settle” upward. This will produce “good separation” of…
Settling rates of 100-micron diameter water drops in hydrocarbon may be read directly from Figure 300-2. Hydrocarbon phase density and viscosity are at separator operating…
Measurement of droplet sizes (Dp) in industrial separators is impractical. We cannot verify the theoretical model; instead, we must rely on qualitative judgments. In general,…
Sizing of vessels for separation of liquid phases is based on a theoretical model and equations for terminal or free-settling velocity of a spherical particle…
Unless surge volume has been specified elsewhere, provide liquid volume between the maximum and minimum liquid levels to give the following residence times for each…