Abstract
Home-made NaA zeolite membranes were used for pervaporation dehydration of ethylene glycol (EG)/water mixtures. Hydrothermal stability of the membranes in pervaporation was investigated for industrial application purpose. The membranes exhibited good stability for water content of less than 20wt.% at 100°C. The reduction of operating temperature was effective to improve membrane stability for operating at high feed water content (e.g. 30wt.%). The influence of feed water content and operating temperature on dehydration of EG was extensively investigated. A permeation flux of 4.03kgm−2h−1 with separation factor of >5000 was achieved at 120°C for the separation of the solution with 20wt.% water content. A pilot-scale pervaporation facility with membrane area of 3m2 was built up for dehydration of EG with the water content of 20wt.%, which showed technical feasibility for industrial application.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
