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Gas phase SMB for propane/propylene separation using enhanced 13X zeolite beads

Title
Gas phase SMB for propane/propylene separation using enhanced 13X zeolite beads
Type
Article in International Scientific Journal
Year
2014
Authors
M. C. Campo
(Author)
FEUP
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M. C. Baptista
(Author)
FEUP
A. M. Ribeiro
(Author)
FEUP
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A. Ferreira
(Author)
FEUP
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J. C. Santos
(Author)
FEUP
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C. Lutz
(Author)
Other
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J. M. Loureiro
(Author)
FEUP
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A. E. Rodrigues
(Author)
FEUP
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Journal
Vol. 20 No. 1
Pages: 61-75
ISSN: 0929-5607
Publisher: Springer
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Publicação em ISI Proceedings ISI Proceedings
Publicação em ISI Web of Science ISI Web of Science
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Scientific classification
FOS: Engineering and technology > Chemical engineering
CORDIS: Technological sciences > Engineering > Chemical engineering
Other information
Authenticus ID: P-008-NER
Abstract (EN): A gas phase simulated moving bed technology using improved 13X zeolite beads and isobutane as desorbent is assessed for the separation of propane/propylene. Adsorption equilibrium (via gravimetric method) and dynamics (via breakthrough curves) were determined in order to validate the mathematical model used to describe the adsorption process. Simulation results have shown that it is possible to separate propylene from a mixture with propane using gas phase SMB technology. The results indicate that high purity propylene (99.99 % desorbent free basis) can be recovered up to 99.96 % with a productivity of 17.6 mol kg(-1) h(-1), with propane being also recovered at high levels (99.98 %) and high purity (99.89 % desorbent free basis). Comparing the SMB simulation results obtained for this new 13X zeolite beads with those obtained with a commercial 13X zeolite characterized elsewhere, it was found that the productivity of the process was raised by 25 %, with half desorbent consumption.
Language: English
Type (Professor's evaluation): Scientific
No. of pages: 15
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