Effect of Temperature, Pressure, and Reaction Time on Hydrogenation of Hexadecanoic Acid to 1-Hexadecanol Using a Ru-Sn(3.0)/C Catalyst

Effect of temperature, initial H2 pressure, and reaction time on the selective hydrogenation of hexadecanoate acid to 1-hexadecanol over bimetallic ruthenium-tin supported on carbon (denoted as Ru-Sn(3.0)/C; 3.0 is molar ratio Ru/Sn) has been systematically investigated. Ru-Sn(3.0)/C catalyst was sy...

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Main Authors: Nor Ain, Rodiansono Rodiansono, Kamilia Mustikasari
Format: Article
Language:English
Published: Chemistry Department, Faculty of Sciences and Mathematics, Diponegoro University 2019-07-01
Series:Jurnal Kimia Sains dan Aplikasi
Subjects:
Online Access:https://ejournal.undip.ac.id/index.php/ksa/article/view/22340
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author Nor Ain
Rodiansono Rodiansono
Kamilia Mustikasari
author_facet Nor Ain
Rodiansono Rodiansono
Kamilia Mustikasari
author_sort Nor Ain
collection DOAJ
description Effect of temperature, initial H2 pressure, and reaction time on the selective hydrogenation of hexadecanoate acid to 1-hexadecanol over bimetallic ruthenium-tin supported on carbon (denoted as Ru-Sn(3.0)/C; 3.0 is molar ratio Ru/Sn) has been systematically investigated. Ru-Sn(3.0)/C catalyst was synthesized using a simple hydrothermal method at temperature of 150oC for 24 h followed by reduction with hydrogen at at 400oC and 500°C for 1.5 h. The XRD patterns of reduced Ru-Sn(3.0)/C showed a series diffraction peaks of bimetallic alloy Ru3Sn7 at 2θ = 30.0°; 35.0°; and 41.3° which are recognized as (310), (321), and (411) reflection planes present. The N2-adsorpsion/desorption profiles confirmed that the catalyst structure was microporous and mesoporous sizes with specific surface area (SBET) of 207 m2/g, pore volume (VpBJH) 0.1015 cm3/g, and pore diameter (dpBJH) 1,21 nm. NH3-TPD profile shows that the desorption temperature of 157.1°C was a weak acidity (Bronsted acid site) with amount of acid sites was 0.117 mmol/g. Meanwhile, the desorption temperature of 660.3°C was a strong acidity (Lewis acid site) with amount of acid sites was 0.826 mmol/g. The highest conversion of hexadecanoic acid (86.24%) was achieved at reaction temperature180°C, initial H2 pressure of 5.0 MPa, a reaction time of 6 h in ethanol solvent and afforded yield of hexadecane (0.15%), 1-hexadecanol (4.27%), and ethyl hexadecanoate (81.82%). At reaction temperature of 150°C, H2 of 3.0 MPa, and a reaction time of 18 h, 73.27% of hexadecanoic acid was converted to 1-hexadecanol (0.24%) and ethyl hexadecanoate (73,03%).
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spelling doaj.art-aeebda44a19a4f42bf6c46c5dbdaa9982022-12-22T04:12:59ZengChemistry Department, Faculty of Sciences and Mathematics, Diponegoro UniversityJurnal Kimia Sains dan Aplikasi1410-89172597-99142019-07-0122411212210.14710/jksa.22.4.112-12215290Effect of Temperature, Pressure, and Reaction Time on Hydrogenation of Hexadecanoic Acid to 1-Hexadecanol Using a Ru-Sn(3.0)/C CatalystNor Ain0Rodiansono Rodiansono1https://orcid.org/0000-0002-9047-3586Kamilia Mustikasari2Research Catalyst Group, Department of Chemistry, Lambung Mangkurat University, IndonesiaResearch Catalyst Group, Department of Chemistry, Lambung Mangkurat University, IndonesiaResearch Catalyst Group, Department of Chemistry, Lambung Mangkurat University, IndonesiaEffect of temperature, initial H2 pressure, and reaction time on the selective hydrogenation of hexadecanoate acid to 1-hexadecanol over bimetallic ruthenium-tin supported on carbon (denoted as Ru-Sn(3.0)/C; 3.0 is molar ratio Ru/Sn) has been systematically investigated. Ru-Sn(3.0)/C catalyst was synthesized using a simple hydrothermal method at temperature of 150oC for 24 h followed by reduction with hydrogen at at 400oC and 500°C for 1.5 h. The XRD patterns of reduced Ru-Sn(3.0)/C showed a series diffraction peaks of bimetallic alloy Ru3Sn7 at 2θ = 30.0°; 35.0°; and 41.3° which are recognized as (310), (321), and (411) reflection planes present. The N2-adsorpsion/desorption profiles confirmed that the catalyst structure was microporous and mesoporous sizes with specific surface area (SBET) of 207 m2/g, pore volume (VpBJH) 0.1015 cm3/g, and pore diameter (dpBJH) 1,21 nm. NH3-TPD profile shows that the desorption temperature of 157.1°C was a weak acidity (Bronsted acid site) with amount of acid sites was 0.117 mmol/g. Meanwhile, the desorption temperature of 660.3°C was a strong acidity (Lewis acid site) with amount of acid sites was 0.826 mmol/g. The highest conversion of hexadecanoic acid (86.24%) was achieved at reaction temperature180°C, initial H2 pressure of 5.0 MPa, a reaction time of 6 h in ethanol solvent and afforded yield of hexadecane (0.15%), 1-hexadecanol (4.27%), and ethyl hexadecanoate (81.82%). At reaction temperature of 150°C, H2 of 3.0 MPa, and a reaction time of 18 h, 73.27% of hexadecanoic acid was converted to 1-hexadecanol (0.24%) and ethyl hexadecanoate (73,03%).https://ejournal.undip.ac.id/index.php/ksa/article/view/22340ru-sn(3.0)/c catalystselective hydrogenationhexadecanoic acid1-hexadecanolethyl hexadecanoate
spellingShingle Nor Ain
Rodiansono Rodiansono
Kamilia Mustikasari
Effect of Temperature, Pressure, and Reaction Time on Hydrogenation of Hexadecanoic Acid to 1-Hexadecanol Using a Ru-Sn(3.0)/C Catalyst
Jurnal Kimia Sains dan Aplikasi
ru-sn(3.0)/c catalyst
selective hydrogenation
hexadecanoic acid
1-hexadecanol
ethyl hexadecanoate
title Effect of Temperature, Pressure, and Reaction Time on Hydrogenation of Hexadecanoic Acid to 1-Hexadecanol Using a Ru-Sn(3.0)/C Catalyst
title_full Effect of Temperature, Pressure, and Reaction Time on Hydrogenation of Hexadecanoic Acid to 1-Hexadecanol Using a Ru-Sn(3.0)/C Catalyst
title_fullStr Effect of Temperature, Pressure, and Reaction Time on Hydrogenation of Hexadecanoic Acid to 1-Hexadecanol Using a Ru-Sn(3.0)/C Catalyst
title_full_unstemmed Effect of Temperature, Pressure, and Reaction Time on Hydrogenation of Hexadecanoic Acid to 1-Hexadecanol Using a Ru-Sn(3.0)/C Catalyst
title_short Effect of Temperature, Pressure, and Reaction Time on Hydrogenation of Hexadecanoic Acid to 1-Hexadecanol Using a Ru-Sn(3.0)/C Catalyst
title_sort effect of temperature pressure and reaction time on hydrogenation of hexadecanoic acid to 1 hexadecanol using a ru sn 3 0 c catalyst
topic ru-sn(3.0)/c catalyst
selective hydrogenation
hexadecanoic acid
1-hexadecanol
ethyl hexadecanoate
url https://ejournal.undip.ac.id/index.php/ksa/article/view/22340
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AT rodiansonorodiansono effectoftemperaturepressureandreactiontimeonhydrogenationofhexadecanoicacidto1hexadecanolusingarusn30ccatalyst
AT kamiliamustikasari effectoftemperaturepressureandreactiontimeonhydrogenationofhexadecanoicacidto1hexadecanolusingarusn30ccatalyst