Silitonga, Lastri Anita (2018) OPTIMALISASI AKTIVITAS KATALIS ZY DAN NIMO/ZY PADA PROSES CATALYTIC HYDROCRACKING MINYAK BIJI KARET MENJADI FRAKSI BAHAN BAKAR. Undergraduate thesis, UNIMED.
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Abstract
Penelitian produksi fraksi bahan bakar cair dari minyak biji karet melalui proses Catalytic Hydrocracking menggunakan katalis ZY dan NiMo/ZY. Minyak biji karet diperoleh dari ekstraksi dengan pelarut n-heksan, rendemen yang diperoleh yaitu 46,358% dengan kadar asam lemak bebas (FFA) 9,6367% dan berat jenis 0,8988 g/mL. Impregnasi logam Ni dan Mo pada ZY menggunakan larutan garam prekursor yaitu (NH4)6Mo7O24.4H2O) dan Ni(NO3)2.6H2O. Karakterisasi katalis meliputi penentuan kristalinitas dengan X-Ray Diffraction (XRD) dan penentuan luas permukaan, volume pori dan rerata jari pori dengan Gas Sorption Analyzer NOVA. Kristalinitas katalis setelah pengembanan logam tidak mengalami perubahan struktur kristalinitas nya. Pengembanan logam meningkatkan luas permukaan, rerata jari pori dan volume pori yaitu secara berturut 455,057m2g, 26,13Å dan 0,59cc/g. Proses catalytic hydrocracking dilakukan dengan menggunakan reaktor sistem semiflow jenis fixed-bed dengan perbandingan katalis : umpan yaitu 1:6 dengan variasi suhu 4000C,4500C dan 5000C. Produk cair yang didapat dianalisis dengan Gas Chromatography (CG), dimana produk cair terdiri dari fraksi bensin, diesel dan minyak berat. Konversi produk cair terbesar yang dieroleh sebanyak 69% dengan katalis ZY pada suhu 5000C dan selektivitas tertinggi pada fraksi bensin yaitu 88,11% dengan katalis NiMo/ZY pada suhu 4000C. perengkahan dengan katalis regenerasi dilakukan pada suhu 5000C untuk membandingkan dengan katalis baru. Konversi produk cair tertinggi pada katalis regenerasi ialah 43% (NiMo/ZY regenerasi) dan selektivitas tertinggi 78,80% (ZY regenerasi).
Item Type: | Thesis (Undergraduate) | ||||||
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Call Number: | SK-2018 KIM 174 | ||||||
Keywords: | Minyak Biji Karet, Catalytic Hydrocracking, ZY dan NiMo/ZY | ||||||
Subjects: | Q Science > QD Chemistry > QD415 Biochemistry T Technology > TP Chemical technology > TP248 Biotechnology T Technology > TP Chemical technology > TP315 Fuel |
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Divisions: | Fakultas Matematika dan Ilmu Pengetahuan Alam > Kimia | ||||||
Depositing User: | Mr Fifri Juanda Harahap | ||||||
Date Deposited: | 21 Feb 2019 14:02 | ||||||
URI: | http://digilib.unimed.ac.id/id/eprint/32155 |
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