KONVERSI MINYAK DEDAK PADI MENJADI FRAKSI BIOGASOLINE MELALUI PROSES CATALYTIC HYDROCRACKING MENGGUNAKAN KATALIS ZEOLIT ALAM AKTIF TEREMBAN LOGAM NI DAN MO

Winarti, Wiwit (2014) KONVERSI MINYAK DEDAK PADI MENJADI FRAKSI BIOGASOLINE MELALUI PROSES CATALYTIC HYDROCRACKING MENGGUNAKAN KATALIS ZEOLIT ALAM AKTIF TEREMBAN LOGAM NI DAN MO. Undergraduate thesis, UNIMED.

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Abstract

Telah dilakukan penelitian konversi minyak dedak padi menjadi fraksi biogasoline melalui proses catalytic hydrocracking menggunakan katalis zeolit alam aktif teremban logam Ni dan Mo. Minyak dedak padi diekstrak dengan menggunakan pelarut N-hexane. Esterifikasi dilakukan dengan perbandingan minyak dedak padi : methanol (1:6) dan katalis H2SO4 1%(v/v) selama 1 jam. Selanjutnya transesterifikasi dilakukan dengan menambahkan NaOH 1% (b/b) sebagai katalis. Zeolit alam diaktivasi dengan metode pengasaman pada temperatur 90C selama 30 menit dan dikalsinasi pada temperatur 500C selama 2 jam dengan dialirankan gas Nitrogen. Impregnasi logam Ni dan Mo pada sampel zeolit dilakukan dengan menggunakan larutan garam prekursor (Ni(NO3)2.6H2O) dan (NH4)6Mo7O24.4H2O). Zeolit direfluks pada temperatur 80C selama 5 jam, kemudian dikeringkan dan dikalsinasi selama 2 jam pada temperatur 500C dengan dialirankan gas Nitrogen. Katalis dioksidasi pada temperatur 500C selama 2 jam dengan aliran gas Oksigen. Hydrocracking MEFA minyak dedak padi dilakukan dengan menggunakan reaktor fixed- bed dengan variasi temperatur 350ºC, 400ºC, dan 450C selama 1 jam dan konsentrasi katalis ZAA dan NiO-MoO/ZAA sebesar 1%(b/b). Produk cair hasil catalytic hydrocracking dianalisis dengan GC. Hasil penelitian menunjukkan konversi produk cair dari katalis NiO-MoO/ZAA lebih tinggi yaitu sebesar 89,53% pada temperatur 450C sedangkan katalis ZAA menghasilkan konversi produk cair yaitu 79,16% pada temperatur 450C. Selektivitas katalis ZAA terhadap fraksi bensin masing-masing adalah 45,08%, 27,66% dan 27,84%, sedangkan untuk fraksi diesel pada masing-masing sebesar 54,92%, 72,34% dan 72,16%. Sedangkan selektivitas katalis NiO-MoO/ZAA terhadap fraksi bensin masing-masing adalah 37,09%, 25,08% dan 24,49%, dan untuk fraksi diesel masing-masing sebesar 62,91%, 74,92% dan 75,51%.

Item Type: Thesis (Undergraduate)
Contributors:
ContributionNameNIDN/NIDK
Thesis advisorSihombing, Junifa Layla198006202006042001
Call Number: 549.68 Win k
Keywords: Minyak Dedak Padi; Dedak Padi; Zeolit; Zeolit Alam; Zeolit Sintetik; Zeolit Sebagai Katalis
Subjects: Q Science > QD Chemistry
Q Science > QD Chemistry > QD625 Radiation chemistry
Divisions: Fakultas Matematika dan Ilmu Pengetahuan Alam > Kimia
Depositing User: Mrs Desy Sry Yani
Date Deposited: 08 Apr 2016 08:34
URI: http://digilib.unimed.ac.id/id/eprint/11938

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