Pembuatan katalis padat K-Al2O3 untuk proses transesterifikasi minyak kelapa sawit RBD

Santoso, Aristia Anggraeni and Dewi, Aulia Kartika (2015) Pembuatan katalis padat K-Al2O3 untuk proses transesterifikasi minyak kelapa sawit RBD. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Penelitian ini bertujuan untuk mempelajari cara membuat katalis heterogen K/γ-Al2O3 untuk reaksi transesterifikasi minyak kelapa sawit menjadi biodiesel, mempelajari pengaruh katalis homogen KOH dan katalis heterogen K/γ-Al2O3 terhadap yield biodiesel melalui transesterifikasi minyak kelapa sawit pada reaktor batch, mempelajari pengaruh temperatur reaksi dan waktu terhadap yield biodiesel yang dihasilkan pada reaktor batch, dan mendapatkan yield dan konversi terbaik dari kombinasi variabel penelitian. Penelitian ini mengembangkan katalis K/γ-Al2O3. Pembuatan katalis melalui metode impregnasi KOH pada γ-Al2O3. Kemudian, dioven selama 24 jam pada suhu 110˚C dan dikalsinasi pada suhu 475˚C selama 4 jam dengan dialirkan gas H2 dan N2. Katalis yang diperoleh digunakan untuk proses tranesterifikasi biodiesel dengan variabel massa katalis 0,5; 1; 2 gram, waktu 0; 30; 60; 90; 120 menit dan suhu 60; 80; 100˚C. Dari hasil penelitian didapatkan bahwa biodiesel dapat diproduksi melalui reaksi tranesterifikasi menggunakan katalis K/γ- Al2O3 dalam reaktor batch. Berdasarkan hasil analisa BET didapat luas permukaan katalis sebesar 59,538 m2/g. Pengaruh komposisi katalis terhadap yield biodiesel menunjukkan bahwa semakin besar penambahan katalis sebanding dengan kenaikan yield biodiesel, komposisi katalis optimum diperoleh pada massa katalis 1 gram KOH dan 7 gram K/-Al2O3. Yield biodiesel tertinggi menggunakan katalis homogen (KOH) dengan yield sebesar 71,752% diperoleh pada kondisi operasi suhu 60oC dan waktu reaksi 120 menit. ===================================================================================================== Biodiesel is one of alternative energy for fuel which made from transesterification reaction between vegetable oil and methanol. This study aims to learn how to make heterogeneous catalysts K/γ-Al2O3 for palm oil transesterification reaction into biodiesel, study the effect of KOH homogeneous catalysts and heterogeneous catalysts K/γ-Al2O3 to the yield of biodiesel through transesterification of palm oil in a batch reactor, study the effect of reaction temperature and time on the yield of biodiesel produced in a batch reactor, and get the best yield and the conversion of a combination of research variables. This study developes a catalyst K/γ-Al2O3. Preparation of the catalyst through impregnation method KOH on γ-Al2O3. Then, the oven for 24 hours at a temperature of 110˚C and calcined at a temperature of 475˚C for 4 hours with H2 and N2 gas flowed. The catalyst obtained is used to process biodiesel tranesterifikasi with variable catalyst mass of 0.5; 1; 2 grams, time 0; 30; 60; 90; 120 minutes and a temperature of 60; 80; 100˚C. The result showed that biodiesel can be produced through a reaction using catalysts tranesterifikasi K/γ-Al2O3 in a batch reactor. The influence of the catalyst composition of the biodiesel yield show that the larger the addition of the catalyst is proportional to the increase biodiesel yield, the optimum catalyst composition is obtained in the catalyst mass 1 gram of KOH and 7 grams of K/γ-Al2O3. The highest yield of biodiesel using homogeneous catalyst (KOH) at a yield of 71,752% is obtained at a temperature of 60°C operating conditions and reaction time of 120 minutes.

Item Type: Thesis (Undergraduate)
Additional Information: RSK 661.83 San p
Uncontrolled Keywords: Katalis; Biodiesel; RBD; Transesterifikasi
Subjects: T Technology > TP Chemical technology > TP669 Oils, fats, and waxes
Divisions: Faculty of Industrial Technology > Chemical Engineering > 24201-(S1) Undergraduate Thesis
Depositing User: - Taufiq Rahmanu
Date Deposited: 23 Apr 2019 04:03
Last Modified: 23 Apr 2019 04:03
URI: https://repository.its.ac.id/id/eprint/62800

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