CD Skripsi

Sintesis Katalis Cao Dengan Metoda Hidrasi-Dehidrasi Terimpregnasi Koh Dan Aplikasinya Pada Transesterifikasi Cpo Dengan Variasi Berat-Katalis Dan Rasio Mol Minyak : Metanol

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SUMMARY
Biodiesel is an alternative fuel that is environmentally friendly and can be synthesized from oil/fat and methanol using a catalyst. Heterogeneous CaO catalyst is widely used in biodiesel synthesis because it has high catalytic activity and has low solubility in methanol. The KOH/CaO catalyst which was obtained from CKD calcinated at 900℃ was used for the synthesis of biodiesel with CPO as raw material, but the yield was still low at 74.7%. Therefore, this study aims to modify the synthesis of CaO catalysts by hydration-dehydration method with the impregnated KOH which is expected to increase catalytic activity, thereby increase yield biodiesel. The resulting catalyst was applied to biodiesel production with variations in catalyst weight (1, 2, 3 and 4% w/w) and oil : methanol mole ratios (1:6, 1:9, 1:12 and 1:15). The catalyst was characterized using the Surface Area Analyzer with the BET method to determine the surface area and FTIR to determine the functional groups contained in the catalyst. The surface area of the KOH/CaO catalyst (0, 1, 3, 5 and 7% K) were 1.4291; 2.9617; 4.2854; 1.4125 and 1.6544 m2 g-1, resfectively. Based on the FTIR data, it can be seen that the Ca-O stretching present at wave number 414.71; 413.75; 412.78; 410.86 and 405.07 cm-1. The optimum biodiesel was obtained using KOH/CaO (3% K) catalyst with a catalyst weight of 1% w/w and a mole ratio of oil to methanol of 1:12 to produce yield of 82.81%. The characteristics of the biodiesel produced for water content is 0.02% v/v, specific gravity is 862 kg m-3, viscosity is 2.36 mm2s-1, carbon residue is 0.09% w/w and the acid number is 0.00044 mg-KOH g-1. In general, the characteristics of biodiesel are in accordance with the requirements of SNI 7182-2015 biodiesel, except the carbon residue value which is slightly higher than the SNI standard value.

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Ketersediaan

Informasi Detail

Judul Seri

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No. Panggil

1703122673

Penerbit

Pekanbaru : Universitas Riau - FMIPA - Kimia., 2023

Deskripsi Fisik

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Bahasa

Indonesia

ISBN/ISSN

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Klasifikasi

1703122673

Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

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Subjek

KIMIA

Info Detail Spesifik

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Pernyataan Tanggungjawab

tethi

Versi lain/terkait

Lampiran Berkas

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