The Experts below are selected from a list of 7818 Experts worldwide ranked by ideXlab platform
Abdelrahman B. Fadhil - One of the best experts on this subject based on the ideXlab platform.
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production of chicken fat ethyl esters via optomized protocols with Dry Washing by silica gel
2016Co-Authors: Abdelrahman B. Fadhil, Waseem S AbdulahadAbstract:ABSTRACTThe chicken fat ethyl ester (CFEE) was developed through alkali-catalyzed transesterification with ethanol using potassium hydroxide (KOH) as a catalyst. Parameters affecting the process of transesterification such as the catalyst concentration, ethanol to oil molar ratio, reaction temperature, and reaction duration are investigated. As a result, maximum CFEEs of 90% (~96.21 ester content% w/w) was obtained under optimal conditions of 1.0 wt.% KOH, 8:1 ethanol to fat molar ratio, a reaction temperature of 70°C, and a duration of 90 min. Dry Washing method using (3.0% w/w) of silica gel was used to purify the crude ethyl ester from the residual catalyst, glycerol, and other impurities. Properties of the produced ethyl esters were determined and found in accordance with specifications prescribed by the ASTM standards. Moreover, blends of CFEEs and petrodiesel were prepared and evaluated according to ASTM test methods.
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ethanolysis of fish oil via optimized protocol and purification by Dry Washing of crude ethyl esters
2016Co-Authors: Abdelrahman B. Fadhil, Adnan I AhmedAbstract:Abstract In this research work, fatty acid ethyl ester (biodiesel) was successfully developed from fish oil. The acid value of fish oil used is 1.23 mg KOH/g. As a result, transesterification of fish oil with ethanol was performed via one-step transesterification, namely alkaline-catalyzed transesterification using potassium hydroxide (KOH) as a catalyst. The influence of transesterification variables including amount of KOH, ethanol to oil molar ratio, reaction temperature, reaction time and type of the alkali catalyst on yield of fish oil ethyl esters (FOEE) were investigated. The Dry Washing method which used the activated carbon produced from de-oiled fish waste was used to purify the crude ethyl esters. The best yield of FOEE (98.04% ∼ 97.11% w/w ester content) was obtained at 0.75% wt. KOH, 9:1 ethanol to oil molar ratio, 70 °C reaction temperature and 60 min of reaction. The fuel properties of FOEE were complied with the limits prescribed in the ASTM D6751 standards and EN 14214, where applicable. The viscosity of the produced ethyl ester was found much lower than those reported for the ethyl esters produced from various feedstocks. The transesterification of fish oil with ethanol followed first order kinetics and the activation energy was found to be 14.45 kJ/mol.
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transesterification of mustard brassica nigra seed oil with ethanol purification of the crude ethyl ester with activated carbon produced from de oiled cake
2014Co-Authors: Abdelrahman B. Fadhil, Waseem S AbdulahadAbstract:Abstract The present study reports the production of mustard seed oil ethyl esters (MSOEE) through alkali-catalyzed transesterification with ethanol using potassium hydroxide as a catalyst. The influence of the process parameters such as catalyst concentration, ethanol to oil molar ratio, reaction temperature, reaction duration and the catalyst type was investigated so as to find out the optimal conditions for the transesterification process. As a result, optimum conditions for production of MSOEE were found to be: 0.90% KOH wt/wt of oil, 8:1 ethanol to oil molar ratio, a reaction temperature of 60 °C, and a reaction time of 60 min. Dry Washing method with (2.50% wt.) of the activated carbon that was produced from the de-oiled cake was used to purify the crude ethyl ester from the residual catalyst and glycerol. The transesterification process provided a yield of 94% w/w of ethyl esters with an ester content of 98.22% wt. under the optimum conditions. Properties of the produced ethyl esters satisfied the specifications prescribed by the ASTM standards. Blending MSOEE with petro diesel was also investigated. The results showed that the ethyl esters had a slight influence on the properties of petro diesel.
Joao Gomes - One of the best experts on this subject based on the ideXlab platform.
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Dry Washing biodiesel purification using fumed silica sorbent
2020Co-Authors: Monica Catarino, Eduardo Goncalves Ferreira, Ana Paula Soares Dias, Joao GomesAbstract:Abstract Aiming the decarbonization of the transport sector, biodiesel, obtained by alcoholysis of oils or animal fats, is currently mixed with conventional fossil diesel. For this purpose, biodiesel has to comply with the established quality standards and, therefore, the production process comprises purification steps, which need huge volumes of water. Thus, the biodiesel purification procedure must be improved in order to provide a greener and low-cost renewable fuel. Biodiesel (FAME) produced by methanolysis of soybean and waste frying oils over a heterogeneous calcium-based catalyst was purified by Dry Washing, using commercial silica sorbent (Sipernat 22 from Evonik). ATR-FTIR spectra of post-purification sorbents showed that silica was effective to remove unreacted oil species, glycerin and Ca soap from biodiesel and, contrary to the previously reported in the literature, it was also able to remove leached calcium from the biodiesel. For both feedsotcks, the highest purity was reached for the sorption test carried out at 45 ℃ during 60 min. Sorbent regeneration was evaluated using acetone, methanol, and isopropanol alcohols at room temperature during short contact time (5 min for 1 g of sorbent and 20 mL of solvent). All the tested solvents were effective to remove the adsorbed species from silica surface.
Waseem S Abdulahad - One of the best experts on this subject based on the ideXlab platform.
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production of chicken fat ethyl esters via optomized protocols with Dry Washing by silica gel
2016Co-Authors: Abdelrahman B. Fadhil, Waseem S AbdulahadAbstract:ABSTRACTThe chicken fat ethyl ester (CFEE) was developed through alkali-catalyzed transesterification with ethanol using potassium hydroxide (KOH) as a catalyst. Parameters affecting the process of transesterification such as the catalyst concentration, ethanol to oil molar ratio, reaction temperature, and reaction duration are investigated. As a result, maximum CFEEs of 90% (~96.21 ester content% w/w) was obtained under optimal conditions of 1.0 wt.% KOH, 8:1 ethanol to fat molar ratio, a reaction temperature of 70°C, and a duration of 90 min. Dry Washing method using (3.0% w/w) of silica gel was used to purify the crude ethyl ester from the residual catalyst, glycerol, and other impurities. Properties of the produced ethyl esters were determined and found in accordance with specifications prescribed by the ASTM standards. Moreover, blends of CFEEs and petrodiesel were prepared and evaluated according to ASTM test methods.
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transesterification of mustard brassica nigra seed oil with ethanol purification of the crude ethyl ester with activated carbon produced from de oiled cake
2014Co-Authors: Abdelrahman B. Fadhil, Waseem S AbdulahadAbstract:Abstract The present study reports the production of mustard seed oil ethyl esters (MSOEE) through alkali-catalyzed transesterification with ethanol using potassium hydroxide as a catalyst. The influence of the process parameters such as catalyst concentration, ethanol to oil molar ratio, reaction temperature, reaction duration and the catalyst type was investigated so as to find out the optimal conditions for the transesterification process. As a result, optimum conditions for production of MSOEE were found to be: 0.90% KOH wt/wt of oil, 8:1 ethanol to oil molar ratio, a reaction temperature of 60 °C, and a reaction time of 60 min. Dry Washing method with (2.50% wt.) of the activated carbon that was produced from the de-oiled cake was used to purify the crude ethyl ester from the residual catalyst and glycerol. The transesterification process provided a yield of 94% w/w of ethyl esters with an ester content of 98.22% wt. under the optimum conditions. Properties of the produced ethyl esters satisfied the specifications prescribed by the ASTM standards. Blending MSOEE with petro diesel was also investigated. The results showed that the ethyl esters had a slight influence on the properties of petro diesel.
Adnan I Ahmed - One of the best experts on this subject based on the ideXlab platform.
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ethanolysis of fish oil via optimized protocol and purification by Dry Washing of crude ethyl esters
2016Co-Authors: Abdelrahman B. Fadhil, Adnan I AhmedAbstract:Abstract In this research work, fatty acid ethyl ester (biodiesel) was successfully developed from fish oil. The acid value of fish oil used is 1.23 mg KOH/g. As a result, transesterification of fish oil with ethanol was performed via one-step transesterification, namely alkaline-catalyzed transesterification using potassium hydroxide (KOH) as a catalyst. The influence of transesterification variables including amount of KOH, ethanol to oil molar ratio, reaction temperature, reaction time and type of the alkali catalyst on yield of fish oil ethyl esters (FOEE) were investigated. The Dry Washing method which used the activated carbon produced from de-oiled fish waste was used to purify the crude ethyl esters. The best yield of FOEE (98.04% ∼ 97.11% w/w ester content) was obtained at 0.75% wt. KOH, 9:1 ethanol to oil molar ratio, 70 °C reaction temperature and 60 min of reaction. The fuel properties of FOEE were complied with the limits prescribed in the ASTM D6751 standards and EN 14214, where applicable. The viscosity of the produced ethyl ester was found much lower than those reported for the ethyl esters produced from various feedstocks. The transesterification of fish oil with ethanol followed first order kinetics and the activation energy was found to be 14.45 kJ/mol.
Samir Kumar Khanal - One of the best experts on this subject based on the ideXlab platform.
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analysis of operating costs for producing biodiesel from palm oil at pilot scale in colombia
2015Co-Authors: J C Acevedo, Jorge A Hernandez, Carlos F Valdes, Samir Kumar KhanalAbstract:The present study aims to evaluate the operating costs of biodiesel production using palm oil in a pilot-scale plant with a capacity of 20,000 L/day (850 L/batch). The production plant uses crude palm oil as a feedstock, and methanol in a molar ratio of 1:10. The process incorporated acid esterification, basic transesterification, and Dry Washing with absorbent powder. Production costs considered in the analysis were feedstock, supplies, labor, electricity, quality and maintenance; amounting to $3.75/gal ($0.99/L) for 2013. Feedstocks required for biodiesel production were among the highest costs, namely 72.6% of total production cost. Process efficiency to convert fatty acids to biodiesel was over 99% and generated a profit of $1.08/gal (i.e., >22% of the total income). According to sensitivity analyses, it is more economically viable for biodiesel production processes to use crude palm oil as a feedstock and take advantage of the byproducts such as glycerine and fertilizers.
