FANG Liang, LI Wanbin, YANG Zhihong, et al. Effect of coating based on various hollow fiber packings on distillation of IPA/water system[J]. CIESC Journal, 2012, (12): 3914-3919.
FANG Liang, LI Wanbin, YANG Zhihong, et al. Effect of coating based on various hollow fiber packings on distillation of IPA/water system[J]. CIESC Journal, 2012, (12): 3914-3919.DOI: 10.3969/j.issn.0438-1157.2012.12.025.
The composite polydimethylsiloxane(PDMS)/polysulfone(PSf)and PDMS/polyvinylidenefluoride(PVDF)hollow fiber membranes were prepared by dip-coating modification for the distillation of isopropanol(IPA)/water solution.Compared with the PVDF and PSf hollow fiber membrane contactors
the distillate concentration of membrane contactors packed with PDMS/PVDF and PDMS/PSf hollow fibers was increased by 20% and decreased by 3%~10%
respectively.The height of mass transfer unit of modified packing could be less than 20 cm and the minimum is 5 cm.Mass transfer time was generally less than 10 s.All contactors can be operated normally without considering the flooding and loading limits of conventional packings
which presents great advantages in both hydraulic performance and separation efficiency.