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Distillation Lewis-Matheson method

Multicomponent distillation, 393 absorption factor method, 398 azeotropic, 420-426 bubblepoint (BP) method, 406-409 computer program references. 404 concentration profiles, 394 distribution of non-kevs. 395 Edmister method, 398,399 extractive, 412, 417-422 feed tray location, 397 free variables, number of 395 Lewis-Matheson method 404 MESH eauations. 405-407 molecular, 425-427 nomenclature, 405 number of theoretical trays, 397 packed towers, 433-439 petroleum, 411-415 reflux, minimum, 397 reflux, operating, 397 SC (simultaneous correction) method, 408-411... [Pg.752]

CALCULATION OF REQUIRED REFLUX RATIO AND CONCENTRATION PROFILES. The number of plates needed for a specified separation at a selected reflux ratio can be determined by a plate-by-plate calculation called the Lewis-Matheson method. The amount of all components in the products must be specified to start the calculation. From the composition of the distillate (which is the same as the vapor from the top if a total condenser is used), the temperature and liquid... [Pg.604]

Although this method has not been described herein for solving problems in which a finite number of plates are used, it may be used for conventional distillation columns in conjunction with the 0 method of convergence as described by Holland.4 However, when more than one feed plate is involved, the procedure is subject to problems of roundoff error which appear to be unsolvable with today s computer capabilities. In spite of this difficulty, the Lewis and Matheson method is ideally suited for aid in the visualization of the characteristics of a column with infinitely many plates. [Pg.367]

The general methods of design for multicomponent distillation apply. Since in most cases all the components of the feed streams are found in the bottoms, the method of Lewis and Matheson can be used, starting at the bottom and computing to the top. There will be an optimum solvent-circulation rate small solvent rates require many trays, but the column diameters are small large ratios require fewer trays but larger column diameters and greater solvent-circulation costs. [Pg.459]

See other pages where Distillation Lewis-Matheson method is mentioned: [Pg.751]    [Pg.751]    [Pg.992]    [Pg.218]    [Pg.1278]    [Pg.206]    [Pg.1101]    [Pg.1282]    [Pg.251]    [Pg.24]    [Pg.251]   
See also in sourсe #XX -- [ Pg.404 ]

See also in sourсe #XX -- [ Pg.429 ]

See also in sourсe #XX -- [ Pg.404 ]

See also in sourсe #XX -- [ Pg.404 ]

See also in sourсe #XX -- [ Pg.404 ]



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Distillation method

Lewis method

Matheson

Multicomponent distillation Lewis-Matheson method

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