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Sterculia foetida tree with fruits
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The depletion of fossil fuel reserves and the environmental concerns have made to search for new alternative source of energy. Biodiesel seems to be a solution for future because it is a naturally available, renewable and reduces environmental pollution. Biodiesel can be produced from edible/nonedible oils of plants by transesterification process a...
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It is discussed about the biodiesel in this study appeared as an alternative fuel due to its renewable and biodegradability characteristics.Some experiments tests have been carried out to produce the coconut oil diesel, evaluate the properties and performance of mixed biodiesel oils. All the fuels will be mixed with pure diesel according to percent...
Citations
... Kepuh tree seeds are not among foods that is used as staple consumption by most people [7]. The composition of kepuh oil consists of fat (51.78%), protein (21.61%), starch (12.1%), sugar (5%), cellulose (5.51%) and ash (3.9%) [8]. Kepuh biodiesel produces optimal performance in diesel engines and low exhaust emissions when compared to conventional fuels. ...
Kepuh biodiesel fuel (sterculia foetida) is an alternative fuel that can be used to replace fossil fuel. Diesel fuel is performed to determine the laminar flame speed of combustion and high flame by adding biodiesel kepuh volume of 10%, 20%, 30%. The purpose of this study was to study the effect of biodiesel and the effect of bunsen burners on the laminar flame speed of combustion and flame height. Bunsen burner is made of copper and stainless steel. Testing of flame characteristics were carried out by heating the mixture of fuel and air at temperature of 200oC. The purpose of heating the air is to prevent cooling when mixed with fuel. The mixture of fuel and air flowed into the mixing chamber and bunsen burner. The mixture of fuel and water flows into the mixing chamber and bunsen burner to form a fire. Flame images were recorded using a high speed fuji film camera with a speed of 480 fps with a resolution of 224x168. The test results were analyzed by measuring the angle and height of the flame using the freeware imageJ program. The results of the B10 (diesel oil without the addition of biodiesel) fuel mixture test using copper bunsen burner produced a maximum laminar flame speed of 23.6264 cm / s at φ = 0.8. The highest value of the B30 fuel mix flame (30% full biodiesel + 70% diesel oil) produces a maximum flame value using a stainless steel bunsen burner with a value of 25,417 mm at φ = 1.2. The results showed that B10 in copper bunsen burner had the highest laminar burn rate. The composition of the fuel and bunsen burner affects the combustion characteristics and flame height.
... Moreover, the properties of the produced java olive oil methyl esters and all the measured properties are within the limits of ASTM D 6751 and EN 14214 specifications , and from emission and combustion characteristics, java olive methyl ester oil closely followed the standard of diesel oil (Devan and Mahalakshmi 2009). Engine running with biodiesel from java olive seed as fuel is 14.2% higher efficient than diesel fuel due to low frictional losses (Rao et al. 2015). Therefore, java olive oil is one of the promising non-edible feedstocks for biodiesel production. ...
Java olive (Sterculia foetida L.) is one of the promising non-edible feedstocks for biodiesel production. Utilization of this tree species for plantation is limited due to knowledge gaps in many fundamental aspects of seed properties. The aim of the study was to determine the variation that may exist among java olive seed collected from Bogor, Palimanan, Tuban, Gilimanuk, Pemenang and Naioni populations, and to analyze correlations between one or many seed morpho-physiological and biochemical traits. Analysis of variance showed significant differences of seed morphological and biochemical traits, except for the germination capacity. Seed morphological traits were not significantly correlated with agro-climate factors, while some of biochemical traits revealed significant correlation with some agroclimate factors. Genotypic variance and genotypic coefficient of variation were higher for fruit length, fruit width, carbohydrate, fat, protein and oil contents, indicating higher genetic contribution on the variance of these traits. High heritability values combined with high genetic gain was found for protein content, fruit width and oil content, that revealed the characters having highly genetic origin with a good number of heritable components. Population clustering exhibited that most of the geographically distant population are genetically related. Pemenang population was found highly associated with oil content, indicating that the population have high potency to develop as the feedstocks for for biodiesel production. © 2018, Society for Indonesian Biodiversity. All rights reserved.
The members of the family Sterculiaceae also called as cacao family are trees, shrubs or herbs comprising 1000 species. They occur in tropical and subtropical regions. These plants are characterized by the presence of star-shaped hairs with mucilaginous secretions. Chocolate, cacao powder, cacao butter, caffeine and theobromine are produced from the seeds of chosen plants of this family.
This study examined the potential of Nanocatalyst CaO.CeO2 and Fe2O3 for efficient conversion of Sterculia foetida seed Oil into biodiesel. Sterculia foetida contains oil content 40% and low free fatty acid value (0.18mg KOH/g). The synthesized Nanocatalyst were characterized using X-Ray Diffraction (XRD), Fourier Transform Infrared Spectroscopy (FT-IR) and Scanning Electron Microscopy (SEM) techniques. The maximum conversion was achieved (92% yield) using CuO.CeO2 at 0.25% catalyst loading. The optimized reaction was carried out by experimental variables included molar ratio (1:3), temperature (700C), reaction time (3hrs) and stirring rate (600rpm) using reflux transesterification method. The XRD results showed the size of crystals with order 54.4nm for CuO.CeO2 and 31.3nm for Fe2O3. The SEM images of CuO.CeO2 showed spherical structure having particle size of 32.3nm. SEM images of Fe2O3 showed the size ranges from 46.27nm to 28.76nmhaving regular morphology including spherical shape. The FT-IR analysis of these Nanocatalyst also reinforced the results of this study. Gas Chromatography Mass Spectroscopy (GC-MS) and Fourier Transform Infrared Spectroscopy (FT-IR) confirmed the efficient conversion of Sterculia foetida seed oil into biodiesel using prepared nano-catalysts. The prepared nano-catalysts are cheaper, readily available and can be used for industrial scale biofuel production assembly it economically feasible and more cost effective.
