Synthesis and characterization of anthill-eggshell-Ni-Co mixed oxides composite catalyst for biodiesel production from waste frying oil

Direct use of vegetable oil as a fuel on compression ignition engine has been described as impossible, because of its high viscosity and density. Transesterification process and other methods have been identified as ways of reducing these two properties. The high cost of virgin vegetable oils and its competition for food have made the biodiesel unable to compete with fossil diesel and also hike its cost. In order to solve these menaces, in this study, waste frying oil was used as a feedstock for production of biodiesel via transesterification using anthill-eggshell promoted Ni-Co mixed oxides (NiCoAE) as heterogeneous catalyst. The composite catalyst was prepared via incipient wetness impregnation (IWI) method and thermally treated at 1000 °C for 4 h. The developed catalyst was characterized using FTIR and SEM techniques. The biodiesel produced under the favourable reaction conditions was blended with petroleum diesel in three different proportions (B20, B50 and B80) and were tested on diesel engine to evaluate their performance and emission characteristics. The blended fuel containing 20% by volume biodiesel (B20) emitted lowest percentage of CO and CO2. The result obtained herein indicates that the mixture of biodiesel and petroleum diesel containing 20% biodiesel (B20) emitted less carbon monoxide (CO) and carbon dioxide (CO2), thus, indicating best dual fuel combination, which can be used in diesel engines without any adjustment or modification in the engines. This result is in agreement with the findings reported in the literature and Energy Policy Act (EPA) of 1992.

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Development and Characterization of a Composite Anthill-chicken Eggshell Catalyst for Biodiesel Production from Waste Frying Oil

International Journal of Technology ◽

10.14716/ijtech.v9i1.1166 ◽

2018 ◽

Vol 9 (1) ◽

pp. 110 ◽

Cited By ~ 3

Author(s):

Adeyinka S. Yusuff ◽

Olalekan D. Adeniyi ◽

Moses A. Olutoye ◽

Uduak G. Akpan

Keyword(s):

Frying Oil ◽

Biodiesel Production ◽

Waste Frying Oil ◽

Chicken Eggshell ◽

Eggshell Catalyst

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Synthesis and characterization of coal fly ash supported zinc oxide catalyst for biodiesel production using used cooking oil as feed

Renewable Energy ◽

10.1016/j.renene.2021.01.101 ◽

2021 ◽

Vol 170 ◽

pp. 302-314

Author(s):

Adeyinka S. Yusuff ◽

Aman K. Bhonsle ◽

Jayati Trivedi ◽

Dinesh P. Bangwal ◽

Lok P. Singh ◽

...

Keyword(s):

Zinc Oxide ◽

Fly Ash ◽

Oxide Catalyst ◽

Coal Fly Ash ◽

Biodiesel Production ◽

Synthesis And Characterization ◽

Cooking Oil ◽

Used Cooking Oil

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Enzymatic Transesterification of Waste Frying Oil from Local Restaurants in East Colombia Using a Combined Lipase System

Applied Sciences ◽

10.3390/app10103566 ◽

2020 ◽

Vol 10 (10) ◽

pp. 3566

Author(s):

Mary Angélica Ferreira Vela ◽

Juan C. Acevedo-Páez ◽

Nestor Urbina-Suárez ◽

Yeily Adriana Rangel Basto ◽

Ángel Darío González-Delgado

Keyword(s):

Reaction Time ◽

Methyl Esters ◽

Enzyme Concentration ◽

Operating Conditions ◽

Frying Oil ◽

Biodiesel Production ◽

Optimum Operating ◽

Waste Frying Oil ◽

Production Chain ◽

Enzymatic Transesterification

The search for innovation and biotechnological strategies in the biodiesel production chain have become a topic of interest for scientific community owing the importance of renewable energy sources. This work aimed to implement an enzymatic transesterification process to obtain biodiesel from waste frying oil (WFO). The transesterification was performed by varying reaction times (8 h, 12 h and 16 h), enzyme concentrations of lipase XX 25 split (14%, 16% and 18%), pH of reaction media (6, 7 and 8) and reaction temperature (35, 38 and 40 °C) with a fixed alcohol–oil molar ratio of 3:1. The optimum operating conditions were selected to quantify the amount of fatty acid methyl esters (FAMEs) generated. The highest biodiesel production was reached with an enzyme concentration of 14%, reaction time of 8 h, pH of 7 and temperature of 38 °C. It was estimated a FAMEs production of 42.86% for the selected experiment; however, best physicochemical characteristics of biodiesel were achieved with an enzyme concentration of 16% and reaction time of 8 h. Results suggested that enzymatic transesterification process was favorable because the amount of methyl esters obtained was similar to the content of fatty acids in the WFO.

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