3.1. Alcohol adsorption on alumina powder
The feasibility of adsorbing alcohol onto -alumina,
as well as the thermal stability of the adsorbed layer
was first tested using alumina powder in the TPR.
Alcohol adsorption was conducted in gas phase for
several normal and secondary alcohol. Table 1 lists
the normal alcohol tested, later used for modifying the
membrane, and their corresponding normal boiling
point and viscosity. Desorption tests prove that all the
alcohol were readily chemisorbed. As expected, the