HIDRORENGKAH KATALITIK MINYAK SAWIT MENJADI FRAKSI BIOFUEL CAIR MENGGUNAKAN KATALIS Cr/ZEOLIT ALAM AKTIF
| Main Authors: | , Gaspar Bao Balabuana, , Prof. Dr. rer. nat. Karna Wijaya, M.Eng. |
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| Format: | Thesis NonPeerReviewed |
| Terbitan: |
[Yogyakarta] : Universitas Gadjah Mada
, 2011
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| Subjects: | |
| Online Access: |
https://repository.ugm.ac.id/89629/ http://etd.ugm.ac.id/index.php?mod=penelitian_detail&sub=PenelitianDetail&act=view&typ=html&buku_id=51767 |
Daftar Isi:
- Preparation, characterization and activity test of Cr/Activated natural zeolite in hydrocracking of palm oil to liquid biofuels have been examined. The natural zeolite were obtained from Klaten was activated by sulfate acid 1 M so that obtained the activated natural zeolite sample. Catalyst preparation of Cr onto activated natural zeolite was conducted with impregnation method using salt precursor Cr(NO3)3.9H2O followed by calcination, oxidation, and reduction to obtain catalyst Cr/Activated natural zeolite. Catalyst characterization includes determination of the site TO4 (T = Si or Al) in zeolites observed with FT-IR, Bronsted and Lewis acid and catalyst acidity using ammonia and pyridine bases adsorption, crystalinity using X-Ray diffraction (XRD), and catalyst porosity using Surface Area Analyzer. Hydrocracking reaction of palm oil was carried out in a fixed-bed reactor at 450o C and H2 flow rate of 20 mL/minute in feed/catalyst ratio of 1/1, 2/1 and 3/1. Pretreatment of palm oil was conducted by heating, esterification method, or adding with methanol. The liquid product of hydrocracking analyzed by gas chromatography. The research results showed that acid treatment and metal impregnation on to the zeolite sample increased its acidity. The activated natural zeolite and Cr/ Activated natural zeolite samples have specific surface area of 162.46 m2/g and 74.54 m2/g, respectively. The highest conversion of liquid product was 82.05% produced at ratio of feed/catalyst of 2/1 with esterification method in pretreatment of palm oil.