Comparative study of properties and fatty acid composition of some neat vegetable oils and waste cooking oils

Awogbemi, Omojola; Onuh, E. I.; Inambao, Freddie L.

doi:10.1093/ijlct/ctz038

Cited by 97 publications

(41 citation statements)

References 29 publications

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“…Distilled pyrolytic oil has a high density and free fatty acid content (0.927 g/cm 3 and 5.6%, respectively) compared to the produced biodiesel (0.884 g/cm 3 and 0.64%, respectively). Thus, the higher the oil sample's unsaturation degree, the higher the density [35,36].…”

Section: Discussionmentioning

confidence: 99%

Performance Evaluation of Biodiesel Produced from Waste Tire Pyrolytic Oil as a Lubricant Additive in Oil Drilling Systems

2020

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This study investigates the performance of biodiesel produced from distilled waste tire pyrolytic oil through transesterification as a lubricant additive for aqueous drilling fluid systems. Aqueous-based drilling fluids have a high coefficient of friction as compared to oil-based drilling fluids. The inclusion of a biodiesel additive was for smooth application/operation. The friction-reducing physicochemical properties of the additive were analyzed and compared with the guidelinesof the United States specification (ASTM Standard) and the European specification (EN Standard). The chemical structure of the produced biodiesel was analyzed using gas chromatography–mass spectrometry (GC-MS). The results show that the distilled waste tire pyrolytic oil contains aliphatic, naphthenic, and aromatic hydrocarbons. The free fatty acid value reduced from 5.6% (for pyrolytic oil) to 0.64% after the transesterification process. A saponification value of 203.36 mg/g was recorded for the pyrolytic oil, and this value was also reduced to 197.35 mg/g after the transesterification process. The kinematic viscosity was reduced from 11.2 to 5.3 mm2/s for the obtained biodiesel, and this value is within the ASTM D6751 and EN 14214 standard values (1.9 to 6 and 3.5 to 5 mm2/s, respectively). The cetane number (47.75) was obtained for the biodiesel, and this is within the minimum range stipulated in ASTM D6751 guidelines. The produced biodiesel’s chemical structure analysis using GC-MS shows that it comprises of decanoic acid methyl ester and methyl ester. Furthermore, comparative analysis of the quantified friction-reducing physicochemical properties of the additive shows that the biodiesel produced from the distilled pyrolytic oil is a suitable additive for the improved lubrication of the friction-prone metallic parts of drill bits when water-based drilling fluids are employed for drilling oil and gas wells.

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Section: Discussionmentioning

confidence: 99%

Performance Evaluation of Biodiesel Produced from Waste Tire Pyrolytic Oil as a Lubricant Additive in Oil Drilling Systems

2020

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“…During the frying process, a portion of triglycerides, of the ester moiety, break down. The degree of such degradation depends on the number of frying cycles, frying time, temperature, and the specific vegetable oil [25]. Moreover, during deep frying, many volatile compounds are generated as a consequence of a combination between high temperature and oxygen, which promotes oxidation processes, and other transformations (e.g., the Maillard process) [26,27].…”

Section: Technologies and Materials For The Chemical Treatment Of Wcosmentioning

confidence: 99%

Available Technologies and Materials for Waste Cooking Oil Recycling

et al. 2020

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Recently, the interest in converting waste cooking oils (WCOs) to raw materials has grown exponentially. The driving force of such a trend is mainly represented by the increasing number of WCO applications, combined with the definition, in many countries, of new regulations on waste management. From an industrial perspective, the simple chemical composition of WCOs make them suitable as valuable chemical building blocks, in fuel, materials, and lubricant productions. The sustainability of such applications is sprightly related to proper recycling procedures. In this context, the development of new recycling processes, as well as the optimization of the existing ones, represents a priority for applied chemistry, chemical engineering, and material science. With the aim of providing useful updates to the scientific community involved in vegetable oil processing, the current available technologies for WCO recycling are herein reported, described, and discussed. In detail, two main types of WCO treatments will be considered: chemical transformations, to exploit the chemical functional groups present in the waste for the synthesis of added value products, and physical treatments as extraction, filtration, and distillation procedures. The first part, regarding chemical synthesis, will be connected mostly to the production of fuels. The second part, concerning physical treatments, will focus on bio-lubricant production. Moreover, during the description of filtering procedures, a special focus will be given to the development and applicability of new materials and technologies for WCO treatments.

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“…Apart from the cost-benefit of using UCO as a feedstock, it is also available and sustainable. Research shows that UCO contributed 17 % and 9 % of the feedstock for the production of 11.92 million tons and 26.62 million tons of renewable energy globally in 2015 [49].…”

Section: Feedstock Optionsmentioning

confidence: 99%

Potential of Used Cooking Oil as Feedstock for Hydroprocessing into Hydrogenation Derived Renewable Diesel: A Review

Pelemo¹,

Inambao²,

Onuh³

2020

International Journal of Engineering Research and Technology

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Feedstock is one of the key resources for the production of hydrogenation derived renewable diesel (HDRD). Used cooking oil is a waste oil generated from vegetable oil after frying and can be easily sourced from domestic, restaurant outlet and food processing industries within the Durban metropolis. The right selection of feedstock contributes to the high yield and quality of HDRD. Current works on several vegetable oil sources for potential feedstock applications are reviewed. Good quality and optimal yields of HDRD can be obtained by proper selection of potential feedstock, the right catalyst, and optimal process parameters for desirable reaction pathway etc. The literature on vegetable oil as potential feedstock is discussed. Literature regarding the selection of catalysts for hydrogenation is reviewed. Biomass-based thermal power plants fly ash (BBTPPFS) and calcium oxide sourced from eggshell are identified as viable catalysts for the HDRD process.

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Comparative study of properties and fatty acid composition of some neat vegetable oils and waste cooking oils

Cited by 97 publications

References 29 publications

Performance Evaluation of Biodiesel Produced from Waste Tire Pyrolytic Oil as a Lubricant Additive in Oil Drilling Systems

Performance Evaluation of Biodiesel Produced from Waste Tire Pyrolytic Oil as a Lubricant Additive in Oil Drilling Systems

Available Technologies and Materials for Waste Cooking Oil Recycling

Potential of Used Cooking Oil as Feedstock for Hydroprocessing into Hydrogenation Derived Renewable Diesel: A Review

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