Propane/propene separation by SBA-15 and π-complexated Ag-SBA-15

Carlos A. Grande, Norberto Firpo, Elena Basaldella, Alírio E. Rodrigues

Research output: Chapter in Book/Report/Conference proceedingConference contribution

25 Scopus citations


Synthesis, characterization and adsorption properties of propane/propylene on mesoporous SBA-15 are reported. This material was also used as high surface area material for silver deposition to enhance propylene adsorption improving selectivity towards the olefin. Two different silver loadings were tested: Ag/SiO2 = 0.5 and Ag/SiO2 = 1.0. With the lower silver content, better selectivity and amount adsorbed was obtained. Preliminary studies were done for the use of this adsorbent in Vacuum-Pressure Swing Adsorption (VSA-PSA) units. With a four-step cycle comprising feed, pressurization, rinse and blowdown recovery of 97% propylene with chemical grade purity (91%) was obtained and also fuel grade HD-5 propane at high pressure. If higher propylene purity is required, a five-step cycle has to be used (pressurization, feed, rinse, co-current depressurization to intermediate pressure and counter-current blowdown). In this case, purity of 99% was obtained with 63% recovery. © 2005 Springer Science + Business Media, Inc.
Original languageEnglish (US)
Title of host publicationAdsorption
Number of pages6
StatePublished - Jul 1 2005
Externally publishedYes

Bibliographical note

Generated from Scopus record by KAUST IRTS on 2022-09-13

ASJC Scopus subject areas

  • General Chemical Engineering
  • General Chemistry
  • Surfaces and Interfaces


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