Kristianingsih, Wahyu (2019) Pemodelan dan Optimasi Konsentrasi Zeolit dan Waktu Adsorpsi Terhadap Penurunan Nilai Free Fatty Acid Minyak Goreng Curah Kelapa Sawit dalam Pretreatment Biodiesel Menggunakan Response Surface Methodology. Sarjana thesis, Universitas Brawijaya.
Abstract
Minyak goreng curah kelapa sawit merupakan salah satu bahan pembuatan biodiesel yang mudah didapatkan dan tersedia dalam jumlah besar. Proses pretreatment dapat dilakukan dengan penambahan adsorben zeolit ukuran 100 mesh yang telah teraktivasi untuk menurunkan nilai Free Fatty Acid (FFA) minyak sebagai pengganti proses esterifikasi. Penelitian ini dengan Respon Surface Methodology (RSM) dan rancangan Central Composite Design (CCD) dalam program Design Expert 10.0.8, menghasilkan 13 kombinasi percobaan dari dua faktorial perlakuan yaitu penambahan adsorben zeolit dan waktu adsorpsi. Tujuan dari penelitian ini adalah memodelkan dan mengoptimasi kedua faktor tersebut terhadap respon penurunan nilai FFA dari sampel. Faktor konsentrasi zeolit dan waktu adsorpsi dengan batas atas 30% dan 120 menit serta batas bawah 10% dan 60 menit, berpengaruh nyata terhadap penurunan nilai FFA minyak goreng kelapa sawit pada proses pretreatment biodiesel dengan respon maksimal yang dihasilkan sebesar 0.30% dan respon minimal -0.612%. Diperoleh model kuadratik dengan persamaan: Y = (−0.5469) + (0.066411X1) + (1.25880 × 10−3X2) − (2.31544 × 10−4X1X2) − (1.45271 × 10−3X12) + (1.55199 × 10−5X22). Proses validasi data dengan kombinasi konsentrasi zeolit sebesar 10.594% serta waktu adsorpsi 101.571 menit menghasilkan simpangan 5.37% antara data prediksi dan data aktual.
English Abstract
Bulk cooking oil from palm oil processing is one of the ingredients for making biodiesel that is easy to get and available in large quantities. The pretreatment process can be done by adding 100 mesh of zeolite adsorbent which has been activated to reduce the Free Fatty Acid (FFA) value of oil as the substituted of esterification process. In this study with the Surface Methodology (RSM) Response and the design of Central Composite Design (CCD) in the Design Expert 10.0.8 program resulted in 13 experimental combinations of the two factorial treatments, the addition of zeolite adsorbents and the adsorption time. The purpose of this study is to model and optimize zeolite concentration and adsorption time to the response of decrease FFA value. Zeolite addition and adsorption time with an upper limit of 30% and 120 minutes and a lower limit of 10% and 60 minutes significantly affected the decrease in palm oil FFA value in the biodiesel pretreatment process with a maximum response of 0.30% and the minimum response of -0.612 %. The response generated from the modeling and optimization process decreases the FFA value resulting in a quadratic model with the equation: Y = (−0.5469) + (0.066411X1) + (1.25880 × 10−3X2) − (2.31544 × 10−4X1X2) − (1.45271 × 10−3X12) + (1.55199 × 10−5X22). The recommended process of data validation with the optimum combination of zeolite addition of 10,594% and the adsorption time of 101,571 minutes resulted in a 5.37% deviation between predictive data and actual data.
Other obstract
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| Item Type: | Thesis (Sarjana) |
|---|---|
| Identification Number: | SKR/FTP/2019/318/052002279 |
| Uncontrolled Keywords: | Adsorben Zeolit, FFA, Response Surface Methodology, Waktu Adsorpsi, Adsorbent Zeolite, Adsorption Time, FFA, Response Surface Methodology |
| Subjects: | 600 Technology (Applied sciences) > 658 General management > 658.5 Management of production > 658.56 Product control, packaging; waste control and utilization |
| Divisions: | Fakultas Teknologi Pertanian > Keteknikan Pertanian |
| Depositing User: | Nur Cholis |
| Date Deposited: | 10 Aug 2020 06:51 |
| Last Modified: | 10 Aug 2020 06:51 |
| URI: | http://repository.ub.ac.id/id/eprint/181021 |
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