Potentials of African Star Apple (&lt;i&gt;Chrysophyllum albidum)&lt;/i&gt; Fruit Shell Adsorbent in Recovery of Valuable Hydrocarbons for Spent Engine Oil

Elijah Taiwo,Oluwatosin Tokede,Olayinka Sanda

doi:10.18052/www.scipress.com/ijet.20.9

Potentials of African Star Apple (<i>Chrysophyllum albidum)</i> Fruit Shell Adsorbent in Recovery of Valuable Hydrocarbons for Spent Engine Oil

Elijah Taiwo, Oluwatosin Tokede + Show 1 more

Open Access

https://doi.org/10.18052/www.scipress.com/ijet.20.9

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Abstract

Inventory of spent engine oil continuously increase and indiscriminately disposed of at auto-mechanics garages. Adsorptive separation established to be indispensable in recovery of these hydrocarbons was carried out using Chrysophyllum albidum (African star apple) fruit shell – a renewable resource. In this study, clay pretreated spent engine oil was recovered in a fixed bed adsorption processes and the recovered adsorbate components determined by GC-MS analysis. The results showed African star apple fruit shell adsorbent effective in recovering n-hexane solubilized spent lubricating oil. The study concluded that using the developed African star apple fruit shell adsorbent, an agricultural waste adsorbent in the recovery of waste lubricating oil will enhance greatly the nation’s economy.

Highlights

Lubricant is a composited organic substance, capable of reducing friction between surfaces, usually metals in physical contact, thereby reducing the heat generated by the motion of the contacting surfaces
Lubricating oil from petroleum consists mainly complex mixtures of hydrocarbons. It mostly consists of isoalkanes with slightly longer branches, mono cycloalkanes and mono aromatics with several branches on the ring [2]
Additives are mixed with the base oil is to enhance its ability to act as a film layer between contact surfaces

Summary

Introduction

Lubricant is a composited organic substance, capable of reducing friction between surfaces, usually metals in physical contact, thereby reducing the heat generated by the motion of the contacting surfaces. Functions of the lubricating oil are; cooling of surfaces when applied, transmitting forces and transporting foreign particles off the contacting surfaces [1]. Lubricating oils play dual function of heat removal and that of friction reduction [1,2,3]. Lubricating oil from petroleum consists mainly complex mixtures of hydrocarbons. It mostly consists of isoalkanes with slightly longer branches, mono cycloalkanes and mono aromatics with several branches on the ring [2]. Additives are mixed with the base oil is to enhance its ability to act as a film layer between contact surfaces. There are different grades of lubricating oil with varying quality and unique purpose, and this determines the types of additives added [1]

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