Browsing by Author "Olutoye, M. A."

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Investigation into the Properties of Clay doped with Silver Ion for Use as a Catalyst
(Journal of Science and Technology Research (JSTR), 2007) Olutoye, M. A.; Eterigho, E. J.; Agbajelola, O. D.
The work on the investigation into the properties of clay doped with silver ion for use as a catalyst has been carried out. The clay sample from llorin from llorin, Kwara State, Nigeria was ground, sieved and calcined in a furnace at a temperature of 550- 600'C for a period of 6hrs. The sample was doped with silver ion using 0.2M of NaOH/NaCl Solution with 0.2M AgNO, in a ratio 2:1. The sample was than analyzed using X-ray fluorescence equipment (XRF) [Cement X-ray spectrometer, PW 1660, Philips X-ray Analyser) with a monitor. The following results were obtained 33.44% SiO2, 23.11% 1120g, 9.87% Fe203, 3.86% CaO, 1.98% MgO, 0.01% SO3, 0.87% K,0, 0.71% Na2O, 8.61% L.O.I, 3.03% L.S.F, 1.01S/R and 2.34% A/R for the calcined sample. While that of the doped samples are 33.15% SO2, 22.10 Al203, 9.23%Fe203, 4,44% CaO, 1.99% MgO, 0.04% SO3, 0.96% K2O, 8.10 L. O.1, 3.55 L.S.F, 1.06 S/R and 2.39 A/R. These results when compare with samples having catalytic properties was found to be suitable for use as a catalyst.
Physical Characteristics of Ukpor and Ahoko Clay deposit for use as industrial raw materials
(Advanced Materials Research: Trans Tech Publications Ltd, Switzerland, 2007-06-15) Eterigho, E. J.; Olutoye, M. A.
The physical properties of some Nigerian clays were studied in order to determine their suitability for a variety of industrial applications. From the analysis, the specific gravity of Ukpor and Ahoko clays were 1.89 and 2.26 respectively and the Plasticity Index 26.05% and 22.45%, drying shrinkage was 18.90% and 8.2% and particle size distribution showed that the samples are clays. The results show that the physical properties of the clays are within the specifications for kaolin clays and are suitable for industrial uses
Quality Improvement of an Acid Treated Fuel Oil
(Leonardo Electronic Journal of Practices and Technologies, 2008-01) Eterigho, Elizabeth Jumoke; Olutoye, M. A.
The work on the quality improvement of fuel oil using acid treatment was carried out. The improvement of the fuel oil was done using sulphuric acid to remove contaminants. Sulphuric acid at different concentrations were mixed with the oil and kept at 45°C for four hours in the agitator vessel to allow reaction to take place. Acidic sludge was then drained off from the agitator and the oil was neutralized with sodium hydroxide. Centrifugation operation was used to extract the sulphonate dispersed in the oil. The treated and untreated oils were characterized for various properties and the results showed that the viscosity, total sulphur of fuel oil decreased from 6.0 to before 5.0 cst after acid treatment and 2.57 to 1.2225% w/w respectively while the flash point increased from 248 to 264°F. The water and sediment content increased from trace before to 0.6 after treatment. In addition, the calorific value increased from initial value of 44,368 to 44,805 and 44,715 kJ/kg at 50% and 75% conc. H2SO4 while decreasing with 85% and 90% conc. H2SO4. However, both carbon residue and ash content decreases with an increase in acid concentration.
Transesterification of waste frying oil to methyl ester using activated Carbon supported Mg-Zn oxide as solid-base catalyst
(1st International Engineering Conference (IEC) Federal University of Technology, Minna, Nigeria, 2015) Olutoye, M. A.; Eterigho, Elizabeth Jumoke; Suleiman, B.; Adeniyi, O. D.; Mohammed, I. A.; Musa, U.
An activated carbon-supported Mg-Zn catalyst (Mg-Zn/AC) was prepared by using co-precipitation combined with incipient wetness impregnation methods. The catalyst structure was characterized by powder X-ray diffraction (XRD), N2 adsorption-desorption, Fourier transform infrared spectroscopy (FTIR), its microstructure was studied by the use of scanning electron microscopy (SEM)and the catalytic performance toward synthesis of methyl esters from waste frying oil (WFO) was investigated. The properties studied provided insight into the catalytic performance of the catalyst whereby the large surface area and pore volume of the support facilitated the distribution of metal particles and high dispersion of metals. The optimum reaction conditions were obtained by varying parameters such as methanol to oil ratio, catalyst loading, temperature and time. Under the conditions of reaction time of 5 h, temperature, 150 °C and catalyst dosage of 2.5 wt%, the methyl ester yield of >86% was achieved using 64 g of WFO, 38 g of methanol. The results showed that Mg-Zn/AC catalyst presented efficient activity during the transesterification reaction and is a promising heterogeneous catalyst for the production biodiesel fuel from vegetable oil feedstock.