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Desulfurization of liquid-phase Butane by zeolite molecular sieve 13X in a fixed bed: Modeling, simulation, and comparison with commercial-scale plant data

Shams, A ; Sharif University of Technology | 2008

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  1. Type of Document: Article
  2. DOI: 10.1021/ef700500x
  3. Publisher: 2008
  4. Abstract:
  5. This paper deals with the modeling and simulation of binary liquid-phase adsorption of methyl mercaptan and hydrogen sulfide from a liquid butane stream by zeolite molecular sieve 13X in a fixed bed. The model equations account for the effect of axial dispersion and the inter- and intraparticle, mass-transfer resistances at isothermal operating conditions. Orthogonal collocation and Gill's fourth-order Runge-Kutta methods were used to solve the dimensionless general forms of the 4N-eoupled ordinary differential equations for simultaneous adsorption of the solutes by the adsorbent in a fixed bed. The model predictions were compared to the commercial-scale plant data of an Iranian petrochemical company (Bandar Imam, Iran), and a fair agreement was observed for the fixed-bed absorber of 1.7 m in diameter and 5.06 m in height. Moreover, the influences of the bed Reynolds number, Peclet number, total inlet sulfur concentrytion, feed temperature, and diameter of the spherical adsorbent on the breakthrough curve were investigated. © 2008 American Chemical Society
  6. Keywords:
  7. Adsorption ; Desulfurization ; Hydrogen sulfide ; Mass transfer ; Molecular sieves ; Ordinary differential equations ; Peclet number ; Reynolds number ; Runge Kutta methods ; Zeolites ; Fixed-bed absorber ; Methyl mercaptan ; Butane
  8. Source: Energy and Fuels ; Volume 22, Issue 1 , 2008 , Pages 570-575 ; 08870624 (ISSN)
  9. URL: https://pubs.acs.org/doi/10.1021/ef700500x