Prediction of point efficiency for sieve trays in distillation

Journal Article · Thu Apr 01 04:00:00 EST 1993 · Industrial and Engineering Chemistry Research; (United States)

DOI:https://doi.org/10.1021/ie00016a017· OSTI ID:6826772

Chen, G X; Chuang, K T ^[1]

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1. Univ. of Alberta, Edmonton (Canada)

A new semiempirical model for the prediction of the number of mass-transfer units, hence tray efficiency, for distillation has been developed. The interfacial area of sieve tray dispersion is estimated by the Levich theory, and the mass-transfer coefficients are determined by the penetration theory. Two constants that are required to complete the model were obtained by fitting the model to the tray efficiency data of cyclohexane/n-heptane mixtures published by Fractionation Research Inc. (FRI). The predicted efficiency and percent liquid-phase resistance are in good agreement with the experimental values for ethylbenzene/styrene published by Billet and additional data from FRI.

• OSTI ID: 6826772
• Journal Information: Industrial and Engineering Chemistry Research; (United States), Journal Name: Industrial and Engineering Chemistry Research; (United States) Vol. 32:4; ISSN IECRED; ISSN 0888-5885
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020400* -- Petroleum-- Processing
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320303 -- Energy Conservation
Consumption
& Utilization-- Industrial & Agricultural Processes-- Equipment & Processes
ALKANES
CYCLOALKANES
CYCLOHEXANE
DISTILLATION
DISTILLATION EQUIPMENT
EFFICIENCY
EQUIPMENT
HEPTANE
HYDROCARBONS
INTERFACES
MASS TRANSFER
MATHEMATICAL MODELS
ORGANIC COMPOUNDS
SEPARATION PROCESSES