Fig. 1From: Agricultural byproducts-based biosorbents for purification of bioalcohols: a reviewPressure swing adsorption: a two bed pressure swing adsorption process [Ref. (Simo 2013)] Copyrights John Wiley and Sons, 2013. Reprinted with permission from the publisher. b Pressure profile for two-bed ethanol PSA cycle [Ref. (Simo 2008)] Copyrights Elsevier, 2008. Reprinted with permission from the publisherBack to article page