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Modeling Tray Separation Columns with Parallel Streams
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DOI：10.1021/acs.iecr.3c01016.png)
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摘要
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Linear tray models based on liquid phase plug flow, aredevelopedfor absorption and desorption using conventional-, para-, and metaseparation columns. The models are explicit in the local (point) efficiencyrather than tray efficiency, leading to direct integration of theLewis enhancement effects, i.e. of point-to-plate efficiency enhancement.The models lead to mathematical systems, also encountered in modelingand analysis of periodic separations. With similar analysis, the modelscan evaluate stationary profiles and tray efficiencies of systemswith arbitrary numbers of trays and parallel streams. The models areused to simulate stripping/desorption of ammonia from water with airand absorption of SO2 with seawater. The presented frameworkof modeling and analysis makes it possible to develop a basis forcomparing different separation forms on a common basis. Periodic separationand conventional tray-based separation are special cases of para separationand meta separation without stream partitioning. Similarly, para separationand meta separation can be seen as extensions of periodic and conventionalseparation to higher numbers of parallel streams.
Keyword:
GENERAL-APPROACH
DISTILLATION
ABSORPTION
期刊
I
IF:
3.9
论文数:
4.0W
被引数:
9.6W
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