ACADSTAFF UGM
| Title | : | Conversion Of N-Butanol to 1,1 Dibutoxybutane using Zn/Activated Carbon (Zn/Ac) Catalyst |
| Author | : |
Mokhammad Fajar Pradipta, S.Si.,M.Eng. (1) Prof. Dr. Iip Izul Falah (2) |
| Date | : | 0 2016 |
| Keyword | : | 1,1-dibutoxybutane,catalytic conversion,n-butanol,Zn/AC catalyst,Taguchi method 1,1-dibutoxybutane,catalytic conversion,n-butanol,Zn/AC catalyst,Taguchi method |
| Abstract | : | This research was conducted to prepare Zn catalyst supported on activated carbon (AC) which has high acidity, high catalytic activity and selectivity to produce 1,1-dibutoxybutane. Taguchi method was used to optimize parameters affecting reaction such as temperature, the mass of catalyst and H2 gas flow rate. The catalyst was prepared through carbon activation method at 850 °C by CO2 gas flow, washing process using acetone and 1,0 M HCl. Impregnation on activated carbon was done with ZnCl2 solution, then reduced at 650 °C using H2 gas flow. Metal impurities of Fe, Ca, and Na were measured using an atomic absorption spectrometer (AAS). The acidity catalyst test was performed by ammonia adsorption, and the acidity was obtained by the gravimetric method. n-Butanol conversion in the gas phase was carried out in an electric furnace with the variation of the temperature (450; 550; 650 °C), the mass of the catalyst (10; 15; 20 g), and H2 gas flow rate (5; 10; 15 mL/min). The product was analyzed by fourier transform-infrared (FT-IR), gas chromatography (GC), gas chromatography-mass spectrometer (GC-MS), 1H and 13C nuclear magnetic resonance spectrometer (NMR). Results of analyses showed that washing with acetone and 1,0 M HCl could reduce the amount of metal impurities in the activated carbon. The test results of acidity showed that catalyst acidity of Zn/AC has higher than AC, which was 8.807 and 3.840 mmol/g, respectively. The highest product of 1,1-dibutoxybutane was produced as much as 44.01% at 450 °C using the mass of the catalyst of 15 g and H2 gas flow rate of 10 mL/min. The optimum condition for the dehydration of n-butanol using Taguchi method was at temperature 550 °C using the mass of the catalyst of 15 g and H2 gas flow rate of 10 mL/min |
| Group of Knowledge | : | Kimia |
| Level | : | Internasional |
| Status | : |
Published
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