Uji Coba Produksi Biofuel dari RBD Stearin dalam Reaktor Fixed Bed dengan Metode Cracking

Agus Budianto, Sumari Sumari, Wahyu Setyo Pambudi, Novi Andriani, A. Alif Mardianto

Abstract


Stearin merupakan satu produk yang dihasilkan dari pengolahan minyak sawit. Stearin biasanya dijadikan minyak goreng padat, akan tetapikurang diminati msyarakat. Stearin dapat diproses menjadi biofuel melalui proses perengkahan katalitik dengan katalis Zink HZSM-5/ ? alumina. Penelitian ini bertujuan untuk mempelajari pengaruh temperatur dan katalis Zink HZSM-5/ ? alumina terhadap selektivitas dan yield produk biofuel yang dihasilkan. Reaksi dilakukan pada temperatur 350, 375, 400, 425, dan 450 oC. Katalis yang digunakan dengan komposisi massa Zink HZSM-5/ ? alumina (1:1) dan (1:2). Reaksi Perengkahan katalitik stearin dilakukan dalam sebuah reaktor fixed bed. Campuran produk dalam bentuk uap dikondensasi menghasilkan produk campuran liquid dan padat. Campuran ini dipisahkan. Produk liquid dianalisa komposisinya menggunakan GC-MS. Hasil penelitian menujukkan bahwa selektivitas tertinggi adalah biokerosen 75,94 % pada suhu reaksi 425 oC menggunakan katalis 1:1. Yield produk tertinggi sebesar 26,40% pada suhu 450 oC menggunakan katalis Zink HZSM-5/ ? alumina 1:1.

Keywords


Biofuel, CPO,Fixed Bed, Reaktor, Perengkahan katalitik, Stearin

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