AZEO SEP pervaporation hybrid systems

It is quite common in the chemical process industry to use various kinds of salts to dehydrate complex mixtures of solvents to avoid azeotropic distillation. These salts can cause many serious problems in the whole process. They can also cause a msting problem in the whole piping system. The disposal of such toxic wastewater is a colossal issue for the chemical industry. The AZEO SEP pervaporation hybrid system can eliminate the use of salt, and it can breakdown the azeotropes for further process or use. 

Small- to medium-size footprint ethanol plants are fading away from the industry due to the high operafronal eost and the high capital cost. AZEO SEP pervaporation hybrid systems offer altemafrves for conventional four-column distillation. This includes only one column hybrid with AZEO SEP. This can reduce the operational cost by as much as 30%. (See Figs. 17.1 and 17.2.)... 

Estcrificafron is quite a complex process especially, separation steps to separate the ester, ethanol, water, and the catalyst (Fig. 17.3). In addition to a reactor, it involves six to eight unit operafrons to complete the separation steps in a conventional process. Therefore, the cost of ester is always much higher than the reactants. However, by using AZEO SEP pervaporation hybrid systems the process becomes very simple and economical. This process can reduce the operating and the capital cost significantly. 

In the resin manufacturing industry, resin manufacturers lose 30% of the reactants in the wastewater. The process is very similar to esterification. The reaction produces water with the formation of resins. At the end, 30% of the reactant remains unreacted due to the presence of water. Similar to esterification in the later stage, the reaction slows down. This step takes a lot of time to complete the batch. It has been demonstrated in a resin manufacturing application that if an AZEO SEP pervaporation hybrid system is incorporated with the conventional system, it increases the yield. It also reduces the reaction time and the wastewater problem. The savings in recovering the unreacted reactants could be phenomenal. It has... 

---

See also in sourсe #XX -- [ ]

---