Ananda, Arih Cahyaning (2024) Eksperimen dan Prediksi Kesetimbangan Uap-Cair Pada Kondisi Isobarik Sistem Biner 2-Butanol + Gliserol, Tert-Butanol + Gliserol, Metanol + Gliserol Pada Tekanan Vakum dan Atmosferik. Masters thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Sumber energi alternatif yang berpotensi untuk dikembangkan di Indonesia adalah biodiesel. Metode yang paling banyak digunakan untuk memproduksi biodiesel adalah transesterifikasi. Produk dari proses transesterifikasi industri biodiesel menghasilkan gliserol sebanyak 10-15% dari kapasitas produksinya dengan tingkat kemurnian gliserol umumnya berkadar 40-50% karena masih mengandung komponen air dan bahan pengotor lainnya. Proses kimia yang sering melibatkan pemurnian dan recovery produk, produk samping sebagian besar menggunakan proses distilasi. Sebelum melakukan perancangan distilasi, diperlukan data kesetimbangan uap-cair antar komponennya. Nilai optimal dari interaksi parameter biner model termodinamika ditentukan dengan mengkorelasikan data VLE hasil eksperimen dengan model termodinamika yang dipilih. Dengan menggunakan metode ebulliometer, data kesetimbangan uap-cair pada kondisi isobarik sistem biner 2-Butanol (1) + Gliserol (2), Tert-butanol (1) + Gliserol (2), dan Metanol (1) + Gliserol (2) pada tekanan vakum (60 kPa) dan atmosferik (100,8 kPa) dengan rentang komposisi (x1) 0 – 1 pada masing-masing tekanan. Dilakukan Validasi alat menggunakan komponen murni untuk 2-Butanol, Tert-Butanol, Metanol, dan Gliserol. Hasil penelitian ini selanjutnya dilakukan uji konsistensi dengan menggunakan metode L-W Wisniak dan diperoleh data sudah konsisten secara thermodinamika. Data hasil eksperimen telah dikorelasikan dengan baik menggunakan metode Wilson, NRTL, dan UNIQUAC. Diperoleh pula metode UNIFAC mampu mempresentasikan data hasil eksperimen dengan cukup baik dengan nilai minimum %AAD T dan %AAD y pada sistem 2-Butanol (1) + Gliserol (2) dan Tert-Butanol (1) + Gliserol (2) ± 1%. Untuk sistem Metanol (1) + Gliserol (2) memiliki %AAD T dan %AAD y < 3%.
============================================================================================================================One of the alternative energy sources with potential for development in Indonesia is biodiesel. The most commonly used method for producing biodiesel is transesterification. The products of the biodiesel industry's transesterification process yield glycerol at a rate of 10-15% of its production capacity, with glycerol purity generally ranging from 40-50% due to the presence of water and other contaminants. The chemical process often involves the purification and recovery of by-products, with distillation being the primary method used. Before designing a distillation process, vapor-liquid equilibrium (VLE) data for the components involved is required. The optimal values for binary interaction parameters in the thermodynamic model are determined by correlating experimental VLE data with the chosen thermodynamic model. Using an ebulliometer, VLE data were obtained for binary systems of 2-Butanol (1) + Glycerol (2), Tert-Butanol (1) + Glycerol (2), and Methanol (1) + Glycerol (2) at vacuum (60 kPa) and atmospheric (100.8 kPa) pressures, with a composition range (x1) of 0-1 at each pressure. Equipment validation was performed using pure components for 2-Butanol, Tert-Butanol, Methanol, and Glycerol. The results were further validated for consistency using the L-W Wisniak method, and the data were found to be thermodynamically consistent. The experimental data were well correlated using the Wilson, NRTL, and UNIQUAC methods. The UNIFAC method also effectively represented the experimental data, with minimum %AAD T and %AAD y values for the 2-Butanol (1) + Glycerol (2) and Tert-Butanol (1) + Glycerol (2) systems within ± 1%. For the Methanol (1) + Glycerol (2) system, the %AAD T and %AAD y values were < 3%.
| Item Type: | Thesis (Masters) |
|---|---|
| Uncontrolled Keywords: | Kata Kunci : Alkohol, Biodiesel, Gliserol, Kesetimbangan Uap Cair, Transesterifikasi ==============================================================Keywords : Alcohol, Biodiesel, Glycerol, Transesterification, Vapor-Liquid Equilibrium |
| Subjects: | T Technology > TP Chemical technology > TP155.7 Chemical processes. T Technology > TP Chemical technology > TP359.B46 Biodiesel fuels. |
| Divisions: | Faculty of Industrial Technology and Systems Engineering (INDSYS) > Chemical Engineering > 24101-(S2) Master Thesis |
| Depositing User: | Arih Cahyaning Ananda |
| Date Deposited: | 07 Aug 2024 21:31 |
| Last Modified: | 07 Aug 2024 21:31 |
| URI: | http://repository.its.ac.id/id/eprint/112030 |
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