Aryandha, Raihan Rafa and Sochib, Hana Hanifah Rachmawati (2026) Kesetimbangan Uap-Cair Sistem Acetone + Methanol Menggunakan Deep Eutectic Solvent Choline Chloride-Ethylene Glycol dan Choline Chloride-Diethylene Glycol Sebagai Entrainer. Other thesis, Institut Teknologi Sepuluh Nopember.
![[thumbnail of 2041221012_2041221060-Undergraduate_Thesis.pdf]](http://repository.its.ac.id/style/images/fileicons/text.png) |
Text
2041221012_2041221060-Undergraduate_Thesis.pdf - Accepted Version Restricted to Repository staff only Download (2MB) | Request a copy |
Abstract
Pemisahan campuran acetone-methanol tidak dapat dilakukan secara optimal menggunakan distilasi sederhana karena nilai volatilitas relatif yang rendah serta titik didih kedua komponen yang berdekatan. Pada industri farmasi, polimer dan cat, campuran limbah pelarut tersebut diproduksi secara masif. Pemulihan pelarut menjadi urgensi untuk menekan tingginya konsumsi energi pada distilasi konvensional. Oleh karena itu, distilasi ekstraktif menjadi metode yang lebih efektif dengan penambahan entrainer untuk meningkatkan efisiensi pemisahan. Deep Eutectic Solvents (DES) berbasis choline chloride-ethylene glycol (ChCl-EG) rasio 1:2 dan 1:3 dan choline chloride-diethylene glycol (ChCl-DEG) rasio 1:2 dan 1:3, pemilihan entrainer digunakan dalam penelitian ini karena kemampuannya berinteraksi secara selektif dengan acetone-methanol serta sifatnya yang lebih ramah lingkungan. Pada proyek akhir ini mencakup eksperimen, pemodelan prediktif, hingga simulasi proses. Pengukuran data kesetimbangan uap–cair (Vapor-Liquid Equilibrium, VLE) untuk sistem biner acetone + methanol dan sistem terner acetone + methanol + entrainer (ChCl-EG dan ChCl-DEG) pada tekanan atmosfer (101,3 kPa) menggunakan alat ebulliometer yang telah divalidasi. Data VLE yang diperoleh selanjutnya diuji konsistensinya menggunakan metode konsistensi termodinamika Van Ness dan LW–Wisniak. Hasil termodinamika dibandingkan dengan prediksi model UNIFAC yang berbasis gugus fungsi, kemudian dikorelasikan menggunakan model NRTL dan UNIQUAC. Hasil korelasi menghasilkan nilai Average Absolute Percentage untuk suhu (AAPD T), komposisi fasa cair, dan komposisi fasa uap, serta parameter interaksi biner sebagai dasar perancangan dan optimasi kolom distilasi ekstraktif. Pada tahap simulasi proses menggunakan aspen plus, parameter interaksi biner digunakan untuk mempresentasikan pemisahan campuran azeotrop secara makroskopis. Hasil simulasi menunjukkan acetone dengan purity 99.8% dapat dicapai menggunakan distilasi ekstraktif pada stage 25 dengan reflux ratio 21,11 dan kebutuhan heat duty reboiler sebesar 19857.990 cal/s.
======================================================================================================================================
The separation of acetone-methanol mixture cannot be done optimally using simple distillation due to the low relative volatility value and the close boiling points of the two components. In the pharmaceutical, polymer and paint industries, the solvent waste mixture is produced massively. Solvent recovery is urgent to reduce the high energy consumption in conventional distillation. Therefore, extractive distillation becomes a more effective method with the addition of entrainer to increase separation efficiency. Deep Eutectic Solvents (DES) based on choline chloride-ethylene glycol (ChCl–EG) ratios of 1:2 and 1:3 and choline chloride-diethylene glycol (ChCl-DEG) ratios of 1:2 and 1:3, the selection of entrainer used in this study because of its ability to interact selectively with acetone-methanol and its more environmentally friendly nature. This final project includes experiments, predictive modeling, and process simulation. Measurement of vapor-liquid equilibrium (VLE) data for the binary system of acetone + methanol and the ternary system of acetone + methanol + entrainer (ChCl-EG and ChCl-DEG) at atmospheric pressure (101.3 kPa) using a validated ebulliometer. The obtained VLE data were then tested for consistency using the Van Ness and LW–Wisniak thermodynamic consistency methods. The thermodynamic results were compared with the predictions of the UNIFAC model based on functional groups, then correlated using the NRTL and UNIQUAC models. The correlation results produced the Average Absolute Percentage value for temperature (AAPD T), liquid phase composition, and vapor phase composition, as well as binary interaction parameters as the basis for designing and optimizing the extractive distillation column. In the process simulation stage using aspen plus, binary interaction parameters were used to represent the separation of the azeotropic mixture macroscopically. Simulation results demonstrate that acetone with a purity of 99.8% can be achieved through extractive distillation at stage 25, with a reflux ratio of 21.11 and a reboiler heat duty requirement of 19,857.990 cal/s.
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | Acetone, ChCl–DEG, ChCl–EG, Distilasi Ekstraktif, Deep Eutectic Solvents, Methanol, VLE, Acetone–Methanol, ChCl–EG, ChCl–DEG, Deep Eutectic Solvents, Extractive Distillation, VLE |
| Subjects: | T Technology > TP Chemical technology > TP155.7 Chemical processes. T Technology > TP Chemical technology > TP156 Crystallization. Extraction (Chemistry). Fermentation. Distillation. Emulsions. |
| Divisions: | Faculty of Vocational > 24305-Industrial Chemical Engineering |
| Depositing User: | Hana Hanifah Rachmawati Sochib |
| Date Deposited: | 31 Jul 2026 07:50 |
| Last Modified: | 31 Jul 2026 07:50 |
| URI: | http://repository.its.ac.id/id/eprint/141087 |
Actions (login required)
 |
View Item |