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Numerical simulation of continuous countercurrent adsorption systems

Shamsur-Rahman, A.K.M. (1992) Numerical simulation of continuous countercurrent adsorption systems. Masters thesis, King Fahd University of Petroleum and Minerals.

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Theoretical models for unsteady state continuous countercurrent adsorption systems are developed both for two section and four section (SORBEX) equivalent countercurrent processes having nonlinear equilibria. Further, a detailed model representing the actual system is developed by writing appropriate differential equations for each adsorption column. An axially dispersed plug flow model with linear driving force rate expression for mass transfer and Langmuir equilibria are considered. For the equivalent models, an equivalent solid phase velocity was assumed and for the detailed model, time dependent boundary conditions for each column are formulated and related to the switching time. Computations are performed for several cycles till the cyclic steady state is obtained. The results obtained from the equivalent and detailed models for the limiting cases of linear and nonlinear isotherms are compared with available experimental data and are found to agree well. The effect of various process parameters on the performance of the systems are investigated for all models. There exists a set of optimum values of all the process parameters which can be evaluated from the present simulation.



Item Type:Thesis (Masters)
Date:June 1992
Date Type:Completion
Subjects:Chemical Engineering
Divisions:College Of Engineering Sciences > Chemical Engineering Dept
Creators:Shamsur-Rahman, A.K.M.
Committee Advisor:Hassan, Essam E.
Committee Members:Loughlin, Kevin F. and Beg, Shafkat A.
ID Code:10335
Deposited By:KFUPM ePrints Admin
Deposited On:22 Jun 2008 17:02
Last Modified:30 Apr 2011 15:16

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