Structured Polyvinyl Alcohol/Zeolite/Carbon Composites Prepared Using Supercritical Fluid Extraction Techniques as Adsorbent for Bioethanol Dehydration

Figure 3

Adsorption isotherms of water at same temperature in various adsorbents. (a) 22°C; (b) 30°C; (c) 40°C. , PVA/Zeo/AC 1 : 1: 1; , PVA/Zeo/AC 1 : 1 : 0.75; , PVA/Zeo/AC 1 : 1 : 0.5; , PVA/Zeo/AC 1 : 1 : 0.25; , PVA/Zeo/AC 1 : 1 : 0; , Langmuir.

(a)

(b)

(c)