PROSES PRODUKSI KATALIS -Al2O3 MENGGUNAKAN METODE IMPREGNASI

Alviany, Riza; Marbun, Maja Pranata; Kurniawansyah, Firman; Roesyadi, Achmad

doi:10.33005/tekkim.v12i2.1088

Cited by 2 publications

(2 citation statements)

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“…The γ-Al2O3 catalyst analysis which was done by Murdijanto et al (2010) produced a peak 2Ɵ value in 32°; 37.6°; 45.48°; and 68.81°. In the catalyst (Alviany et al 2018) the XRD result showed a diffractogram pattern with 2Ɵ peak value in 39.59°; 46.14° and 66.81°. The shift in the 2Ɵ value was influenced by the differences in the analyzed catalyst due to the composition of the catalyst.…”

Section: Analysis Of Catalyst Using Xrd and Xrfmentioning

confidence: 99%

Characterization and Preparation of Ni/γAl2O3 Catalyst for Acetylation of Glycerol in a Fixed Bed Reactor Applied as an Octane Booster for Commercial Fuels

Dewajani

Chumaidi

Suryandari

et al. 2021

JBAT

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Glycerol is a by-product of biodiesel production with the amount of 10% of the total biodiesel product. To increase the utility and economic value of glycerol, it can be processed into several derivative products. One of the glycerol derivative products is currently being developed through the acetylation process. Glycerol acetylation product has been investigated as a component that can be used to increase the octane number of commercial fuels, otherwise known as bio-additives or octane boosters. This study aims to convert glycerol from the by-product of biodiesel production through the acetylation process using a modified solid catalyst Ni/γ-Al2O3 in a fixed bed reactor. The focus of this research is to study the effect of reactant flow rate and the mole ratio of glycerol to acetic acid on glycerol conversion. The variations used were flow rates of feed from 40, 60, 80 and 100 ml/minute, and the mole ratio of glycerol to acetic acid was 1:3, 1:5, 1:7, and 1:9. The experiment was carried out in several stages, namely: preparation and modification of the catalyst, the acetylation process and product application into commercial fuels. The acetylation reaction took place at a temperature of 100 °C and the mass of the catalyst used was 5% of the mass of glycerol. The results showed that the highest conversion of 74.24% was achieved under operating conditions with a reactant flow rate of 40 ml/min and glycerol to acetic acid mole ratio of 1:9. The utilization of acetylation products as bio-additives is carried out by adding reaction products to Pertamax fuel. The highest increase in octane number of Pertamax fuel at the addition of 8% volume of acetylation product from the initial octane number of 93 increased to 102 (increased by 10%).

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Section: Analysis Of Catalyst Using Xrd and Xrfmentioning

confidence: 99%

Characterization and Preparation of Ni/γAl2O3 Catalyst for Acetylation of Glycerol in a Fixed Bed Reactor Applied as an Octane Booster for Commercial Fuels

Dewajani

Chumaidi

Suryandari

et al. 2021

JBAT

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“…Namun, beberapa penelitian melaporkan bahwa doping logam terhadap γ-Al2O3 menyebabkan luas permukaanya menurun. Menurunnya luas permukaan γ-Al2O3 terdoping logam dimungkinkan kerena adanya permukaan γ-Al2O3 yang tertutupi oleh logam [6], [24].…”

Section: Analisis Luas Permukaanunclassified

Pengaruh Doping Ca dan K pada γ-Al2O3 terhadap Sifat Fisik Katalis pada Transesterifikasi Minyak Kelapa

Supriadi

Prajitno

Mahfud

et al. 2021

REACTOR

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Metal doping plays important role in increasing catalytic activity of catalyst materials. In this work, Ca and K were doped to the γ-Al2O3 by dry impregnation method to study the crystallinity, surface area, activation energy, and yield in the coconut oil transesterification reaction. The success of doping was shown in the characterization of Ca/γ-Al2O3 and K/γ-Al2O3 using X-Ray Diffraction (XRD) which increasing in crystallinity from 62.2% (γ-Al2O3) to 69.3 (K/γ-Al2O3) and 76.0 (Ca/γ-Al2O3). The emerging peak of 2θ characteristics of K (29.70° and 32.65°) and Ca (25.35°, 26.77°, and 27.17°) on the γ-Al2O3 (37.66°, 45.82° and 67.22 °) was also observed. Characterization by the Surface Area Analyzer (SAA) shows that the K/γ-Al2O3 catalyst has a smaller surface area (34.03 m2/g) than Ca/γ-Al2O3 (83.77 m2/g), but a higher pore diameter (66.12 Å) than Ca/γ-Al2O3 (35.22 Å). The K/γ-Al2O3 catalyst produced greater FAME yield (93.19%) than Ca/γ-Al2O3 (29.76%) at a catalyst concentration of 2.5%, reaction time 150 s, and ultrasonic frequency of 40 kHz. The quality of the FAME catalyzed by K/γ-Al2O3 fulfills four test parameters: density, kinematic viscosity, flash point, and pour point according to SNI 04-7182-2006 standards.

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PROSES PRODUKSI KATALIS -Al2O3 MENGGUNAKAN METODE IMPREGNASI

Cited by 2 publications

References 0 publications

Characterization and Preparation of Ni/γAl2O3 Catalyst for Acetylation of Glycerol in a Fixed Bed Reactor Applied as an Octane Booster for Commercial Fuels

Characterization and Preparation of Ni/γAl2O3 Catalyst for Acetylation of Glycerol in a Fixed Bed Reactor Applied as an Octane Booster for Commercial Fuels

Pengaruh Doping Ca dan K pada γ-Al2O3 terhadap Sifat Fisik Katalis pada Transesterifikasi Minyak Kelapa

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