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Suprapto Suprapto
Chemistry Department, Faculty Mathematics and Science Institut Teknologi Sepuluh November, Surabaya
Chemical Engineering, Chemistry & Bioengineering Chemistry

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Synthesis of SrO.SiO2 Catalyst and Its Application in the Transesterification Reactions of Soybean Oil Nuni Widiarti; Lisa Amalia Suryana; Nanik Wijayati; Endah Fitriani Rahayu; Harjito Harjito; Samuel Budi Wardhana; Didik Prasetyoko; Suprapto Suprapto
Bulletin of Chemical Reaction Engineering & Catalysis 2017: BCREC Volume 12 Issue 2 Year 2017 (August 2017)
Publisher : Department of Chemical Engineering - Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (111.98 KB) | DOI: 10.9767/bcrec.12.2.804.299-305

Abstract

The synthesis and characterization of SrO.SiO2 were carried out. The rice hull ash was utilized as a source for SiO2. The SrO.SiO2 was prepared by sol-gel technique, and the ratios of SrO:SiO2 were      varied as 0:1, 1:0, 3:2, 2:4, and 2:7. The sol-gel was calcined at 800 oC for 4 hours. The result was    characterized using XRD and FTIR. The diffraction pattern shows that the diffraction angle was shifted, and the intensity of the main peaks was increased. This research indicated that the            crystallinity of SrO was improved at the higher SiO content. Further, a new peak was observed in the IR spectra at a wavenumber of 900 cm-1 indicating the appearance of new functional groups of the SrO.SiO2. The catalytic activity of SrO.SiO2 on transesterification reaction was optimized. The optimum condition was obtained at SrO.SiO2 of 2:7, reaction time of 30 minutes, reaction temperature of 65 oC, the amount of catalyst of 1 % w/v of reactants, and the biodiesel yield of 96.66 %. 
Synthesis of SrO.SiO2 Catalyst and Its Application in the Transesterification Reactions of Soybean Oil Nuni Widiarti; Lisa Amalia Suryana; Nanik Wijayati; Endah Fitriani Rahayu; Harjito Harjito; Samuel Budi Wardhana; Didik Prasetyoko; Suprapto Suprapto
Bulletin of Chemical Reaction Engineering & Catalysis 2017: BCREC Volume 12 Issue 2 Year 2017 (August 2017)
Publisher : Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/bcrec.12.2.804.299-305

Abstract

The synthesis and characterization of SrO.SiO2 were carried out. The rice hull ash was utilized as a source for SiO2. The SrO.SiO2 was prepared by sol-gel technique, and the ratios of SrO:SiO2 were      varied as 0:1, 1:0, 3:2, 2:4, and 2:7. The sol-gel was calcined at 800 oC for 4 hours. The result was    characterized using XRD and FTIR. The diffraction pattern shows that the diffraction angle was shifted, and the intensity of the main peaks was increased. This research indicated that the            crystallinity of SrO was improved at the higher SiO content. Further, a new peak was observed in the IR spectra at a wavenumber of 900 cm-1 indicating the appearance of new functional groups of the SrO.SiO2. The catalytic activity of SrO.SiO2 on transesterification reaction was optimized. The optimum condition was obtained at SrO.SiO2 of 2:7, reaction time of 30 minutes, reaction temperature of 65 oC, the amount of catalyst of 1 % w/v of reactants, and the biodiesel yield of 96.66 %. 
Co-Authors Didik Prasetyoko Harjito Harjito Lisa Amalia Suryana Nanik Wijayati Nuni Widiarti Rahayu, Endah Fitriani Samuel Budi Wardhana