Study of the Dehydration of Isopropanol by a Pervaporation‐Based Hybrid Process

Abstract

The permeation characteristics of the commercial polymeric membrane PERVAP ® 2201 were studied to carry out the dehydration of binary water/isopropanol mixtures. The influence of the composition (2-75 wt % H 2 O) and temperature of the feed (311.15-348.15 K) on the membrane performance was studied. The selected membrane showed a high selectivity towards water in the entire concentration range. It was found that the permeation rate increased with the water content and the operating temperature. The influence of the temperature on the flux can be described by an Arrhenius-type expression. The commercial software Aspen Plus was used to simulate the dehydration of isopropanol by means of a hybrid process combining distillation and pervaporation.

Pervaporation study for different binary mixtures in the esterification system of lactic acid with ethanol

“…An increase in the operating temperature reduces the sorption but is compensated with an increase in the diffusion. Similar behavior was observed by Sanz and Gmheling [14] with the same membrane and Qiao et al [15] with PERVAP ® 2510 in the pervaporation of water/isopropanol mixtures.…”

Study of pervaporation for dehydration of caprolactam through blend NaAlg–poly(vinyl pyrrolidone) membranes on PAN supports

“…Consequently, the increase in permeances is due to the combination of fluxes and the driving force effects mentioned above. A similar behavior was observed by Sanz and Gmehling [35] for the membrane PERVAP ® 2201 for binary water/isopropanol mixtures.…”

The Effect of Reactive Ionic Liquid or Plasticizer Incorporation on the Physicochemical and Transport Properties of Cellulose Acetate Propionate-Based Membranes

“…It can be seen that the type of additive has a more significant impact on the initial degradation temperature of CAP-based membranes than its content. However, it is noteworthy that tested CAP-based membranes are thermally stable up to at least 120 °C, which is an important property for polymeric membranes applied in various membrane-separation processes, including pervaporation [ 47 ].…”