Rectification column contact equipment operating under cyclic conditions

Journal Article · Fri Nov 01 00:00:00 EST 1985 · Chem. Pet. Eng. (Engl. Transl.); (United States)

DOI:https://doi.org/10.1007/BF01154884· OSTI ID:5648909

Gel'perin, N I; Golant, O Y; Lenskii, M S; Migal, A A; Polotskii, L M

The influence of vapor velocity, reflux ratio, and the cycling parameters on the efficiency of a rectification column, operating under cyclic conditions, has been considered. Preliminary experiments using the ethanol-water system were performed to determine the optimum dimensions of the contact equipment with which subsequent investigations were carried out. The experiments showed that the bubble-cap plates without downcomers were less efficient than the plates having downcomers; they have considerable hydraulic resistance and are characterized by low capacity due to the prolonged liquid feed periods. For all the plates the efficiency increases with an increase of relative volatility of the mixture being separated. In all the tests the pressure drop under cyclic and otherwise similar conditions was less than under steady-state conditions.

• OSTI ID: 5648909
• Journal Information: Chem. Pet. Eng. (Engl. Transl.); (United States), Vol. 21:3
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
DISTILLATION EQUIPMENT
ENERGY EFFICIENCY
PERFORMANCE TESTING
PETROLEUM
DISTILLATION
ETHANOL
FLOW RATE
HYDRAULIC CONDUCTIVITY
HYDRAULICS
OPTIMIZATION
PRESSURE DROP
SIZING
VAPOR CONDENSATION
VAPORS
VOLATILITY
WATER
ALCOHOLS
EFFICIENCY
ENERGY SOURCES
EQUIPMENT
FLUID MECHANICS
FLUIDS
FOSSIL FUELS
FUELS
GASES
HYDROGEN COMPOUNDS
HYDROXY COMPOUNDS
MECHANICS
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
SEPARATION PROCESSES
TESTING
020400* - Petroleum- Processing