Hydrocracking Minyak Nyamplung (Calophyllum Inophyllum linn) Menjadi Biofuel Menggunakan Katalis Ni/Hydrotalcite

., Hafshah (2016) Hydrocracking Minyak Nyamplung (Calophyllum Inophyllum linn) Menjadi Biofuel Menggunakan Katalis Ni/Hydrotalcite. Masters thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Biofuel dapat diperoleh dengan cara hydrocracking (perengkahan hidro) melalui reaksi hidrogenasi dan pemutusan rantai panjang trigliserida menjadi rantai yang lebih pendek dengan bantuan hidrogen dan katalis. Proses preparasi katalis Ni/hydrotalcite untuk reaksi hydrocraking, pengaruh % loading nikel dan kondisi operasi terhadap komposisi hidrokarbon, konversi, yield dan selektivitas produk telah dipelajari untuk memperoleh kondisi proses terbaik hydrocracking. Hydrotalcite disintesis dengan metode kopresipitasi dengan ratio Al/Al+Mg 0,5. Hydrotalcite diimpregnasikan dengan nikel menggunakan metode incipient wetness impregnation menjadi Ni/hydrotalcite. Katalis dikarakterisasi dengan Fourier Transform Infrared Spectroscopy (FTIR), metode X-ray Diffraction (XRD) dan Absorpsi-Desorpsi Nitrogen. Katalis Ni/hydrotalcite digunakan dalam proses hydrocracking minyak nyamplung menjadi biofuel dengan volume minyak 200 ml, tekanan 20 bar dengan berat katalis 5 gram. Produk cair hasil hydrocracking dianalisa dengan Fourier Transform Infrared Spectroscopy (FTIR) dan Gas Chromatography Mass Spectrometry (GC-MS). Berdasarkan hasil penelitian, Ni/hydrotalcite hasil sintesis memiliki luas permukaan yang besar yaitu 150-201 m2 /g. Setelah dilakukan uji katalitik, hasil analisa terhadap produk cair hydrocracking menunjukkan bahwa reaksi hydrocracking minyak nyamplung lebih dominan menghasilkan gasoil dibandingkan kerosene. Loading nikel terbaik pada 10% wt (temperatur 350°C, waktu reaksi 150 menit) memperoleh konversi sebesar 98,57%, yield gasoil 54,15% wt dan selektivitas gas oil 81,31%. Kondisi operasi terbaik diperoleh pada waktu reaksi 150 menit dan temperatur 375°C dengan konversi reaksi 100%, yield gasoil 58,29% wt dan selektivitas gasoil 83,33% ================================================================================================================== Biofuels can be obtained by hydrocracking (cracking hydro) through hydrogenation reaction and termination of long-chain triglycerides into shorter chain with the presence of hydrogen and catalyst. Preparation catalyst Ni/hydrotalcite for hydrocracking, the effect of % loading of nickel and operating condition on the composition of the hydrocarbons, conversion, yield and product selectivity have been studied to obtain the best process conditions. Hydrotalcite was synthesized by copresipitation methods with ratio Al/Al+Mg 0.5. Hydrotalcite was impregnated with nickel using incipient wetness impregnation method becomes Ni/hydrotalcite. The catalyst was characterized by Fourier Transform Infrared Spectroscopy (FTIR) methods, X-ray Diffraction (XRD) and Nitrogen Adsorption-Desorption. Ni/hydrotalcite catalysts was used in the hydrocracking process of nyamplung oil into biofuel with the volume of oil 200 ml, under pressure of 20 bar with 5 grams of catalyst weight. Liquid products of hydrocracking were analyzed by Fourier Transform Infrared Spectroscopy (FTIR) and Gas Chromatography Mass Spectrometry (GC-MS). Based on this the research, synthesis Ni/hydrotalcite has large surface area 150-201 m2 /g. After the catalytic test, the analysis of liquid products showed that hydrocracking reactions of nyamplung oil produce gasoil more dominant than kerosene. Best loading nickel was obtained at 10% wt (temperature of 350°C, reaction time of 150 minutes) with the conversion of 98.57%, yield of gasoil 54.15%wt and selectivity to gasoil 81.31%. The best operating conditions was obtained on the reaction time of 150 minutes and temperature of 375°C with conversion of 100%, yield of gasoil 58.29% wt and selectivity to gasoil 83.33°C

Item Type: Thesis (Masters)
Additional Information: RTK 662.28 Haf h
Uncontrolled Keywords: Minyak nyamplung, Biofuel, katalis, Ni/hydrotalcite, Hydrocracking
Subjects: T Technology > TP Chemical technology > TP339 Ethanol as fuel. Biomass energy.
Divisions: Faculty of Industrial Technology > Chemical Engineering > 24101-(S2) Master Thesis
Depositing User: ansi aflacha
Date Deposited: 07 Jul 2020 03:14
Last Modified: 07 Jul 2020 03:14
URI: https://repository.its.ac.id/id/eprint/76317

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