SIMULASI PEMISAHAN SISTEM BINER DENGAN DISTILASI BATCH SEDERHANA

Abstract: A simulation on separating binary system has been studied to investigate the temperature and liquid compositions profiles in the bottom changing with time. By having temperature and liquid compositions profiles in the bottom, one can find whether the binary mixture forms azeotropes or zeotropes mixtures. Antoine equation has used to calculate saturated vapour pressure at atmospheric pressure. The activity coefficient was calculated using UNIQUAC. Forward finite-difference was used to get the calculated value of the bottom still composition at a given time starting from a given initial composition of binary system.  Several  initial  values  of  the  composition  binary  system  had  been  chosen  to  complete  liquid compositions in the bottom. The results showed that the temperature profiles of acetone-n-butanol and ethanol-n-butanol  binary  system  have  differences  characteristic  from  acetone-ethanol  binary  system. Those can be seen from activity coefficient profile. The results showed that the binary system formed zeotropes mixture, without having any azeotropes mixtures of its components. The results   simulation on  separation  binary  system  has  been  validated  with  hydrocarbon  binary  system  benzene-toluene mixture.
Kata kunci: Azeotropik, distilasi batch sederhana, sistem biner, zeotropic
Penulis: N. Soewarno, N. K. Sari, Kuswandi, R. Handogo
Kode Jurnal: jpkimiadd060084

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Jp Kimia dd 2006