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Adsorption Process Modeling by Rigorous Solution Method, on the Packed Bed Filled Zeolite

Feizbakhshan, Mohammad | 2014

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 45785 (06)
  4. University: Sharif University of Technology
  5. Department: Chemical and Petroleum Engineering
  6. Advisor(s): Rashtchian, Davood; Taghikhani, Vahid; Farhadi, Fatolla
  7. Abstract:
  8. The appearance of water in pipe lines of the natural gas transportation would cause several problems. In this regard, disparate methods have been developed to produce and refine of the natural gas, and one of the most common method is adsorption process. In this study, modeling and simulation of the adsorption process in the packed bed of zeolite 4A has been done. This research includes four steps, first, adsorption process and all types of adsorbent were investigated. Second, using rigorous solution method, equations of mass and energy balance derived. Third, using the collocation method and MATLAB programing, system equations of mass and energy was solved. Finally, accuracy of simulation was validated by doing comparison between results of simulation and experimental data. Another achievement of this study was a software package which could be used for simulation of adsorption in all kinds of molecular sieve adsorbents. According to rigorous solution method which is utilized in this study, it is possible to investigate not only the breakthrough curve of packed bed but also adsorption process in granules of adsorbents. In this study two dimensionless parameters were introduced, ϒ and LeBi. Using these two parameters disparate elements which could influence adsorption process were investigated that culminated in two important results. First, there is no need to solve the energy balance equations in conjunction with mass transfer equations in the water-zeolite system. Second, in the system of water-zeolite, macro pore diffusion controls adsorption process in the granule rather than micro pore diffusion. These two efficient results would culminate in convenient and high speed solution
  9. Keywords:
  10. Adsorption ; Modeling ; Packed Bed Column ; Rigorous Solution Method

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