Abstract
Abstract A model and the simulation of a membrane reactor for xylene isomerization are presented. Kinetic parameters for the reaction carried out under industrial conditions are optimized using plant data with a conventional plug-flow model. In the membrane reactor, the characteristics of a ZSM-5 film supported on porous SS tubes, which was developed in our laboratory, are included to simulate the improvement in p -xylene production at 370 °C. The values used for the simulations correspond to ternary mixtures at 370 °C, and they are: 4.70 × 10 −8 , 8.44 × 10 −9 and 8.45 × 10 −9 mol s −1 m −2 Pa −1 for p -, o - and m -xylene, respectively. In this vein, while for the output of the conventional plug-flow reactor the ratio p -/ o -/ m -xylene is 1.000/0.936/1.940, in the case of the membrane reactor the rate is improved to 1.000/0.830/1.719, taking into consideration the contribution of the permeate and retentate sides. Consequently, an increase of 12% in p -xylene production is predicted by increasing permeation area and sweep gas flow, restricted to a reasonable pressure drop and whithin the physical and constructive feasibility of the SS tubes.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
