Experimental Study of Wave Propagation Dynamics of Multicomponent Distillation Columns
Distillation columns with sharp separations exhibit severely nonlinear behavior, which has been known to cause difficulties in column control and design. Such a column is characterized by sharp composition and temperature variations in the column. Previously, the binary distillation case was thoroug...
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| Veröffentlicht in: | Industrial & engineering chemistry research 1999-10, Vol.38 (10), p.3588-3605 |
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| container_title | Industrial & engineering chemistry research |
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| creator | Ting, Jack Helfferich, Friedrich G Hwang, Yng-Long Graham, Glenn K Keller, George E |
| description | Distillation columns with sharp separations exhibit severely nonlinear behavior, which has been known to cause difficulties in column control and design. Such a column is characterized by sharp composition and temperature variations in the column. Previously, the binary distillation case was thoroughly analyzed using a nonlinear wave theory and such an analysis was experimentally validated. For multicomponent distillation, the complicated nonlinear dynamics of the movement and interference of multiple sharp composition variations can be elucidated with a coherent-wave theory developed earlier for general countercurrent separation processes. With a ternary alcohol mixture, the present study has experimentally verified the theory by demonstrating the existence and propagation of constant-pattern coherent waves in a 50-tray stripping column in response to a step disturbance of feed composition, feed flow rate, or reboiler heat supply. The study has also tested the theory's predictions of composition profile, wave velocities, and asymmetric dynamics. |
| doi_str_mv | 10.1021/ie990038o |
| format | Article |
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Eng. Chem. Res</addtitle><description>Distillation columns with sharp separations exhibit severely nonlinear behavior, which has been known to cause difficulties in column control and design. Such a column is characterized by sharp composition and temperature variations in the column. Previously, the binary distillation case was thoroughly analyzed using a nonlinear wave theory and such an analysis was experimentally validated. For multicomponent distillation, the complicated nonlinear dynamics of the movement and interference of multiple sharp composition variations can be elucidated with a coherent-wave theory developed earlier for general countercurrent separation processes. With a ternary alcohol mixture, the present study has experimentally verified the theory by demonstrating the existence and propagation of constant-pattern coherent waves in a 50-tray stripping column in response to a step disturbance of feed composition, feed flow rate, or reboiler heat supply. 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Eng. Chem. Res</addtitle><date>1999-10-01</date><risdate>1999</risdate><volume>38</volume><issue>10</issue><spage>3588</spage><epage>3605</epage><pages>3588-3605</pages><issn>0888-5885</issn><eissn>1520-5045</eissn><coden>IECRED</coden><abstract>Distillation columns with sharp separations exhibit severely nonlinear behavior, which has been known to cause difficulties in column control and design. Such a column is characterized by sharp composition and temperature variations in the column. Previously, the binary distillation case was thoroughly analyzed using a nonlinear wave theory and such an analysis was experimentally validated. For multicomponent distillation, the complicated nonlinear dynamics of the movement and interference of multiple sharp composition variations can be elucidated with a coherent-wave theory developed earlier for general countercurrent separation processes. With a ternary alcohol mixture, the present study has experimentally verified the theory by demonstrating the existence and propagation of constant-pattern coherent waves in a 50-tray stripping column in response to a step disturbance of feed composition, feed flow rate, or reboiler heat supply. The study has also tested the theory's predictions of composition profile, wave velocities, and asymmetric dynamics.</abstract><cop>Washington, DC</cop><pub>American Chemical Society</pub><doi>10.1021/ie990038o</doi><tpages>18</tpages></addata></record> |
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| source | ACS Publications |
| subjects | 09 BIOMASS FUELS ALCOHOLS Applied sciences Chemical engineering DESIGN Distillation DISTILLATION EQUIPMENT ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION Exact sciences and technology FLUID MECHANICS MATHEMATICAL MODELS PROCESS CONTROL WAVE PROPAGATION |
| title | Experimental Study of Wave Propagation Dynamics of Multicomponent Distillation Columns |
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