Transesterification reaction conditions and low-quality feedstock treatment processes for biodiesel production- A review

Abdallah Ahmed Elgharbawy,Wagih Sadik,Olfat Sadek,Mosaad Kasaby

doi:10.21608/jpme.2021.67482.1076

Abdallah Ahmed Elgharbawy, Wagih Sadik + Show 2 more

Open Access

https://doi.org/10.21608/jpme.2021.67482.1076

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Abstract

Diesel or petro-diesel is a non-renewable fossil fuel that is derived from crude oil and it is likely to be exhausted shortly. Since diesel comes from non-renewable resources, this leads to a rise in energy costs especially with the decline of crude oil production. Biodiesel is a type of biofuel that has a composition and combustion properties similar to petrodiesel fuel. Renewable resources such as vegetable oil, algae, and animal fats are crucial feedstocks for biodiesel production. Biodiesel is a renewable and clean fuel as it reduces carbon monoxide, carbon dioxide, hydrocarbons, and particulate matter emissions compared with petroleum-based diesel fuel. The conversion of vegetable oil to alkyl esters (biodiesel) depends upon certain parameters that affect the biodiesel production process such as catalyst concentration, methanol to waste cooking oil ratio, temperature, mixing rate, and reaction time. In this paper, the effect of reaction parameters on the yield quantity and properties will be shown.

Highlights

Diesel or petro-diesel is a non-renewable fossil fuel that is derived from crude oil and it is likely to be exhausted shortly [1, 2]
The transesterification reaction is strongly affected by the reaction temperature, as the temperature increases the rate of reaction increases and enhancing biodiesel formation
Alkalinecatalyzed process is suitable for biodiesel production by trans-esterification when free fatty acid (FFA) content is below 1%

Summary

Introduction

Diesel or petro-diesel is a non-renewable fossil fuel that is derived from crude oil and it is likely to be exhausted shortly [1, 2]. Transesterification reaction occurs when the triglycerides react with alcohol in the specified time, temperature, mixing rate, and in presence of catalyst producing a mixture of fatty acids alkyl esters (biodiesel) and glycerol[7]. The conversion of triglycerides to alkyl esters (biodiesel) depends upon certain parameters that affect the biodiesel production process such as catalyst concentration, methanol to waste cooking oil ratio, temperature, mixing rate, and reaction time[6, 9, 10].

Results

Conclusion