CD Skripsi

Sintesis Biodiesel Dari Low Grade Crude Palm Oil Menggunakan Katalis Asam Heterogen Dari Karbon Aktif Tersulfonasi (Hso3-Cnss@Fe3o4)

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Biodiesel is one alternative energy substitute for fossil fuels that has the advantage of producing lower exhaust emissions and higher combustion efficiency. Biodiesel is produced through the transesterification of vegetable oils. The process of making biodiesel so far has used a homogeneous catalyst NaOH or KOH which has the disadvantage of forming side products in the form of soap and the complexity of separating biodiesel products from catalysts because they have the same phase. Therefore, the use of heterogeneous catalysts has been developed, where in this study biodiesel was made from CPO using the HSO3-CNSs@Fe3O4 catalyst. HSO3-CNSs@Fe3O4 catalyst is first synthesized by reacting sucrose from brown sugar, iron (III) chloride, iron (III) chloride, aquades, and sulfuric acid. HSO3-CNSs@Fe3O4 produced and then characterized include surface morphology, elemental composition, and surface area. The biodiesel synthesis process is carried out at various catalyst concentrations of 0.5%, 1.0%, 1.5%, 2.0% w / w and the mole ratio of oil: methanol 1: 3, 1: 6, 1: 9, 1: 12 While the fixed variables are CPO weight of 50 grams, reaction time of 90 minutes, reaction temperature of 60oC, and stirring speed of 400 rpm. Catalysts at certain concentrations will increase biodiesel yield, but at excess concentrations will reduce biodiesel yield. Meanwhile, with the greater mole ratio of oil: methanol, biodiesel yield will also be even greater. The highest yield of biodiesel was obtained at a catalyst concentration of 1% w / w and a mole ratio of oil: methanol 1: 9 which was 91.52%. The resulting biodiesel has the characteristic content of methyl ester 97.42%, density 873.31 kg / m3, kinematic viscosity 3.902 mm2 / s, acid number 0.25 mg-KOH / g biodiesel, and flash point 146 ° C meets quality standards Indonesian biodiesel (SNI 7182: 2015).
Keywords: Biodiesel, Catalyst, CPO, HSO3-CNSs@Fe3O4, Transesterification, Yield

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Ketersediaan

Informasi Detail

Judul Seri

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No. Panggil

07 02. 119 (0222)

Penerbit

Pekanbaru : Universitas Riau – Fakultas Teknik – Teknik Kimia., 2019

Deskripsi Fisik

xv, 52 hlm.; ill.; 29 cm

Bahasa

Indonesia

ISBN/ISSN

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Klasifikasi

07 02. 119 (0222)

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

DAUS

Versi lain/terkait

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