"When more components than desired are adsorbed, conventional adsorption-desorption separation process may not be satisfactory or may need further separation procedures, even though one is highly preferentially adsorbed. This study is on a method termed Variable-Temperature Stepwise Desorption (VTSD), which can enhance the separation during desorption when more components than desired are adsorbed. The separation of mixtures of propane and propylene, ethanol and water, and hydrogen sulfide-carbon dioxide-propane may be improved by VTSD.
To investigate the VTSD method, a pilot column was set up and tested for the separation of propane and propylene and hydrogen sulfide, carbon dioxide, and propane, after adsorption on molecular sieves, 13X.
A differential thermal desorber was modified and was used to determine the rates and apparent equilibrium of propane-propylene mixtures adsorbing and desorbing on molecular sieves.
A computer algorithm was developed to predict VTSD results from desorption equilibrium data. Using the equilibrium data determined on the thermal desorber and the algorithm, the concentrations and quantities desorbed for pilot-scale runs were estimated at various desorption temperatures. These estimated results were near those determined in experimental runs "--Abstract, page iii.
Findley, Marshall E., 1927-1991
Liapis, Athanasios I.
Bertrand, Gary L.
Poling, Bruce E.
Patel, Jagdish K.
Chemical and Biochemical Engineering
Ph. D. in Chemical Engineering
United States. Department of Energy
National Science Foundation (U.S.)
University of Missouri--Rolla
xxiv, 294 pages
© 1990 Chi Min Shu, All rights reserved.
Dissertation - Restricted Access
Adsorption -- Computer simulation
Materials -- Analysis -- Data processing
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Electronic access to the full-text of this document is restricted to Missouri S&T users. Otherwise, request this publication directly from Missouri S&T Library or contact your local library.http://merlin.lib.umsystem.edu/record=b1474336~S5
Shu, Chi Min, "Estimation of desorbed compositions with variable-temperature stepwise desorption" (1990). Doctoral Dissertations. 486.
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