Muhammad, Kusuma Faisal (2017) Rancang Bangun Fungsional Alat Pervaporasi Dan Optimasi Kadar Etanol Dengan Variabel Suhu Feed Dan Tekanan Pada Sisi Permeat Menggunakan Response Surface Methodology. Sarjana thesis, Universitas Brawijaya.
Abstract
Pervaporasi (PV) adalah proses pemisahan untuk campuran cairan dengan bantuan membran tak berpori. Perpindahan massa pada proses pemisahan ini berdasarkan interaksi campuran senyawa umpan dengan membran. Pada proses ini, aliran umpan berupa fasa cairan yang akan diubah menjadi permeat berfasa gas. Untuk menaikkan driving force umpan ke membran, dilakukan pemanasan pada umpan, dan penambahan pompa vakum pada sisi permeatsehingga akan menaikkan tekanan parsial. Penelitian ini ditujukan untuk membangun suatu alat pervaporasi skala laboratorium sesuai desain fungsional alat tersebut serta mengetahui nilai optimal pada tekanan sisi permeat dan suhu feed untuk mendapatkan kadar etanol yang terbaik dengan menggunakan metode Response Surface Methodology(RSM). Penelitian dilakukan berdasarkan rancangan Central Composite Design (CCD) pada aplikasi Design Expert 10. Didalam rancangan CCD, dimasukkan faktor tekanan dengan level rendah yaitu 46 kPa dan level tinggi yaitu 56 kPa. Sedangkan untuk faktor suhu, level rendah bernilai 67,83oC dan level tinggi 76,20oC. CCD akan mengatur penelitian menjadi 13 kali percobaan. Selanjutnya,dimasukkan 13 hasil yaitu kadar etanol sebagai respon. Kemudian didapatkan model yang disarankan berupa model kuadratik. Solusi optimal berdasarkan RSM yaitu pada tekanan 50,29 kPa dan suhu 71oC, menghasilkan kadar etanol 82,83% dengan nilai desirability sebesar 0,681. Dari solusi optimal yang telah didapatkan, dilakukan uji validasi faktor tersebut berdasarkan solusi optimal yang telah diberikan. vi Dilakukan tiga kali pengujian dengan hasil kadar etanol rata-rata sebesar 82,85%. Tingkat kesalahan pada pengujian ini yaitu sebesar 0,024% sehingga bisa dikatakan pengujian ini valid karena nilai tersebut masih dibawah batas kesalahan yang dapat diterima, yaitu 5%.
English Abstract
Pervaporation (PV) is a separation process for liquid mixture with the aid of porous membrane. The mass transfer in this separation process is based on the interaction of the mixture of the feed compound with the membrane. In this process, the feed stream is on a liquid phase to be converted into gas phasepermeate. To increase the driving force of the feed to the membrane, feed is heated and addition of vacuum pump on the permeate side will raise the partial pressure. This research is aimed to build a laboratory scale pervaporation unit according to the functional design of the unit and to know the optimum value at permeate side pressure and feed temperature to get the best ethanol content by using Surface Methodology (RSM) Response method. The study is based on the design of Central Composite Design (CCD) in Design Expert 10 software.In the CCD design, we set the pressure factor at the low level is 46 kPa and high level is 50 kPa. As for the temperature factor, low level is 67,83oC and high level 76,20oC. CCD will organize the research into 13 trials. Subsequently, there were 13 results of ethanol content as a response. Then we get the suggested model in the form of quadratic model. Optimal solution based on RSM that is at pressure 50,29 kPa and temperature 71oC, yield of ethanol concentration 82,83% with desirability value equal to 0,681. From the optimal solution that has been obtained, validation test conducted based on the optimal solution that has been given. Three times validation test with ethanol result average of 82,85%. The error rate at this test that is equal to 0,024% so it viii can be said this test is valid because the value is still under acceptable error limit that is 5%.
| Item Type: | Thesis (Sarjana) |
|---|---|
| Identification Number: | SKR/FTP/2017/713/051712622 |
| Uncontrolled Keywords: | Etanol, Optimasi, Pervaporasi, Response Surface Methodology |
| Subjects: | 600 Technology (Applied sciences) > 631 Specific techniques; apparatus, equipment materials > 631.3 Tools, machinery, apparatus, equipment / Agricultural engineering |
| Divisions: | Fakultas Teknologi Pertanian > Keteknikan Pertanian |
| Depositing User: | Yusuf Dwi N. |
| Date Deposited: | 22 Jan 2018 07:34 |
| Last Modified: | 04 Nov 2021 07:04 |
| URI: | http://repository.ub.ac.id/id/eprint/8283 |
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