관형 PDMS/세라믹 복합막을 이용한 이소프로판올 수용액의 투과증발특성 Pervaporation Characteristics of Aqueous Isopropanol Solution Using Tubular Type PDMS/Ceramic Composite Membrane

Cited 0 time in webofscience Cited 0 time in scopus
  • Hit : 287
  • Download : 0
PDMS(Polydimethylsiloxane)/ceramic composite membrane was used in pervaporation process in order to enhance the flux with maintaining proper selectivity. In pervaporation of IPA(Isopropanol) from aqueous IPA solution, selectivities of IPA decreased and fluxes increased with concentration of IPA in feed mixtures. in removal of IPA from aqueous IPA solution by using PDMS/ceramic composite membrane, selectivities of IPA increased with operating temperature in the range from 0 to 20wt% of IPA, in feed mixtures. This phenomenon could be explained in terms of coupling effects between permeant and composite membrani and between permeants. Among these effects, capillary condensation could be importantly considered due to hydrophilicity and porous structure of ceramic support. In order to investigate the effect of ceramic support on pervaporation characteristics, pervaporation with homogeneous PDMS membrane without ceramic support was carried out with the same feed mixtures. In the case of non-support membrane, the selectivities of IPA decreased with operating temperature in all the concentration range of IPA in feed mixtures.
Publisher
한국화학공학회
Issue Date
1998-08
Language
Korean
Citation

KOREAN CHEMICAL ENGINEERING RESEARCH(HWAHAK KONGHAK), v.36, no.4, pp.524 - 529

ISSN
0304-128X
URI
http://hdl.handle.net/10203/75682
Appears in Collection
CBE-Journal Papers(저널논문)
Files in This Item
There are no files associated with this item.

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0