Ditapis dengan
Ultrasound-assisted transesterification of refined and crude palm oils using …
Ultrasound-assisted transesterification of refined palm oil (RPO) and crude palm oil (CPO) to produce biodiesel using a palm oil mill fly ash supported calcium oxide (CaO) catalyst is studied in this work. The reaction time is significantly reduced from a maximum of 360 min under conventional mixing to just 30 min with the use of ultrasound. Under ultrasonic cavitation, the required catalyst lo…
- Edisi
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- ISBN/ISSN
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- Deskripsi Fisik
- Energy Science and Engineering 2014; 3(3): 257–269
- Judul Seri
- Energy Science and Engineering
- No. Panggil
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Cu/SiO2 catalysts prepared by the ammonia-evaporation method: Texture, struct…
Abstract. Cu/SiO2 catalysts prepared by the ammonia-evaporation (AE) method have been systematically characterized focusing on the effect of the AE temperature during catalyst preparation. It is found that the texture, composition, and structure of the calcined and reduced Cu/SiO2 catalysts were profoundly affected by the AE temperature. Based on characterizations and previous findings, the…
- Edisi
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- ISBN/ISSN
- 00219517
- Deskripsi Fisik
- Journal of Catalysis 257 (2008) 172–180
- Judul Seri
- Journal of Catalysis
- No. Panggil
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The influence of precursors on Rh/SBA-15 catalysts for N2O decomposition
Abstract. Series of Rh/SBA-15 catalysts were prepared by impregnation and grafting method applying different Rh precursors. The catalytic behaviors of N2O decomposition over these catalysts were tested in an automated eight flow reactor system. The catalysts were characterized by X-ray fluorescence spectroscopy (XRF), X-ray diffraction (XRD), N2 adsorption/desorption, transmission electron …
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- ISBN/ISSN
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- Deskripsi Fisik
- Applied Catalysis B: Environmental 84 (2008) 490–496
- Judul Seri
- Applied Catalysis B: Environmental
- No. Panggil
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Preparation of Cu/SBA-15 catalysts by different methods for the hydrogenolysi…
Abstract. Mesoporous siliceous SBA-15-supported Cu catalysts have been prepared by different methods and systematically characterized. The results revealed that the incipient wetness impregnation (IWI)method gives poor dispersion of copper species, whereas much better dispersion is found in catalysts prepared by the deposition precipitation (DP), grafting, and homogeneous deposition precipi…
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- ISBN/ISSN
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- Deskripsi Fisik
- Applied Catalysis A: General 356 (2009) 129–136
- Judul Seri
- Applied Catalysis A: General
- No. Panggil
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Dehydrogenation of ethane to ethylene over a highly efficient Ga2O3/HZSM-5 ca…
Abstract. Dehydrogenation of ethane to ethylene in the presence of carbon dioxide was investigated over various gallium-based catalysts. Ga2O3/HZSM-5 catalysts show better stability than b-Ga2O3, and the higher Si/ Al ratio HZSM-5 supported gallium oxide catalysts are more resistant to deactivation. The Ga2O3/HZSM- 5(97) catalyst exhibits both high activity and stability for dehydrogenation…
- Edisi
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- ISBN/ISSN
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- Deskripsi Fisik
- Applied Catalysis A: General 356 (2009) 148–153
- Judul Seri
- Applied Catalysis A: General
- No. Panggil
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