Pervaporation separation of organics from multicomponent aqueous mixtures


Hasanoglu A. M. , Salt Y. , KELESER S., Ozkan S. , Dincer S.

CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION, cilt.46, ss.300-306, 2007 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 46 Konu: 4
  • Basım Tarihi: 2007
  • Doi Numarası: 10.1016/j.cep.2006.06.010
  • Dergi Adı: CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION
  • Sayfa Sayıları: ss.300-306

Özet

Pervaporation (PV) separation of ternary and quaternary mixtures of ethyl acetate (EAc), water, ethanol (EOH) and acetic acid (AsAc), which are present in the hydrolysis of ethyl acetate encountered in pharmaceutical industries was investigated. Water concentrations in the feed mixtures are in the range of 90-98 wt.%, while the concentrations of ethyl acetate, ethanol and acetic acid are much lower. Polydimethylsiloxane (PDMS) was used as membrane to separate organic compounds from aqueous streams. Pervaporation experiments were conducted at 30 degrees C. The effect of feed concentration on flux and selectivity was discussed. Experiments show that PDMS membrane is much more selective to ethyl acetate than other organic components. Increase in the ethyl acetate concentration in feed mixture yields higher total fluxes but lower selectivities of ethyl acetate. (c) 2006 Elsevier B.V. All rights reserved.