Layered vacuum pressure-swing adsorption for biogas upgrading

Carlos A. Grande, Alírio E. Rodrigues

Research output: Contribution to journalArticlepeer-review

55 Scopus citations


Biogas is an important source of renewable raw methane that can be upgraded and applied as fuel for vehicles. One of the economic limitations of the upgrading relies in the bulk separation of CO2. In a previous communication (Grande, C. A.; Rodrigues, A. E. Ind. Eng. Chem. Res. 2006, 46, 4595), we have compared the performance of equilibrium- and kinetic-based adsorbents for application in vacuum pressure-swing adsorption (VPSA) processes for biogas upgrading. The main disadvantage of using carbon molecular sieves (CMSs) is that less than 40% of the total capacity to remove CO2 is employed to satisfy purity requirements of methane product (>98%) with direct impact in process productivity. In this work, we report a new adsorbent layering strategy to improve the total productivity of CO2 removal, resulting in a kinetic VPSA process with size reductions up to 60%. © 2007 American Chemical Society.
Original languageEnglish (US)
Pages (from-to)7844-7848
Number of pages5
JournalIndustrial and Engineering Chemistry Research
Issue number23
StatePublished - Nov 7 2007
Externally publishedYes

Bibliographical note

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

ASJC Scopus subject areas

  • General Chemical Engineering
  • General Chemistry
  • Industrial and Manufacturing Engineering


Dive into the research topics of 'Layered vacuum pressure-swing adsorption for biogas upgrading'. Together they form a unique fingerprint.

Cite this