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https://hdl.handle.net/10216/103999
Author(s): | Jonathan C. Gonçalves Alírio E. Rodrigues |
Title: | Simulated moving bed reactor for p-xylene production: Dual-bed column |
Issue Date: | 2016 |
Abstract: | A dual-bed Simulated Moving Bed Reactor (SMBR) is developed under the framework of a proposed aromatics complex where the extract product, with 70 wt% p-xylene, is further purified by a crystallization unit to obtain the final product. Each column within the unit contains an adsorbent/catalyst homogeneous mixture as first bed followed by another bed of just adsorbent. A method of dynamic optimization is applied to estimate the optimum adsorbent/catalyst proportion within the first bed so p-xylene production is equal to its adsorption. Afterwards, the unit is optimized through successive simulations using the SMBR model giving a productivity of 226.27kg/m(3) h (produced p-xylene per volume of adsorbent and catalyst within the columns), a desorbent consumption of 0.07 m(3)/kg (volume of desorbent per produced p-xylene), and a produced p-xylene to fed p-xylene ratio of 1.75 at 200 degrees C. Finally, using the commercial software gPROMS, an integrated method that combines less time-consuming results from True Moving Bed Reactor (TMBR) approach with the rigorous SMBR calculations to develop the dual-bed SMBR unit is presented. |
URI: | https://hdl.handle.net/10216/103999 |
Related Information: | info:eu-repo/grantAgreement/FCT - Fundação para a Ciência e a Tecnologia/Projetos Estratégicos/UID/EQU/50020/2013- POCI-01-0145-FEDER-006984/Laboratório de Processos de Separação e Reação - Laboratório de Catálise e Materiais/LSRE-LCM |
Document Type: | Artigo em Revista Científica Internacional |
Rights: | restrictedAccess |
Appears in Collections: | FEUP - Artigo em Revista Científica Internacional |
Files in This Item:
File | Description | Size | Format | |
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190005.pdf Restricted Access | 1.23 MB | Adobe PDF | Request a copy from the Author(s) |
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