Transcription of Visualizing the McCabe-Thiele Diagram
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36 December 2009 CEPR eactions and SeparationsPaul M. MathiasFluor this spreadsheet-based visualization and interactive analysis of the McCabe-Thiele Diagram to understand the foundations of distillation the McCabe-Thiele DiagramMore than 80 years ago, McCabe and Thiele developed a creative graphical solution tech-nique based on Lewis s assumption of constant molal overfl ow (CMO) for the rational design of distilla-tion columns (1). The McCabe-Thiele Diagram enabled decades of effective design and operational analysis of distillation columns, and has been used to teach several generations of chemical engineers to design and trouble-shoot distillation and other cascaded processes.
the acetone-ethanol x-y diagram. For another system with an x-y diagram that has a more complex shape, more data points in the table may be needed. The McCabe-Thiele diagram is constructed by “stepping off stages.” The starting point is (x D, x D), which is the vapor composition ascending from tray 1. The liquid composition
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