The goal of the research is to convert dry algal biomass into biodiesel in a single step under supercritical methanol conditions, which is both environmentally benign and cost effective. Methanol is used to extract and transesterify lipids from algae under supercritical conditions, resulting in fatty acid methyl esters. The fatty acid methyl esters are generated from polar phospholipids, free fatty acids, and triglycerides, and the process conditions prevent the development of byproducts. On the production of fatty acid methyl esters, the effects of dry algae to methanol (weight/volume) ratio (1:12-1:40), reaction temperature (150-300°C), and reaction duration (5–50 min.) are examined. The conversion percentage reached 97 percent at 300°C, with a molar ratio of 1:30 (weight/volume) and a reaction time of 30 minutes. The purity of fatty acid methyl ester was determined by gas chromatography analysis, and it was found to be 80 percent pure with a 77.6% alkyl ester content. With a high anticipated cetane number (60), strong oxidation resistance, and low viscosity, this green conversion technique has the potential to provide an energy-efficient and cost-effective route for biodiesel production.
Author(S) Details
S. Hawash
Chemical Engineering & Pilot Plant Department, National Research Centre, Egypt.
S. A. Abo El- Enin
Chemical Engineering & Pilot Plant Department, National Research Centre, Egypt.
G. El Diwani
Chemical Engineering & Pilot Plant Department, National Research Centre, Egypt.
View Book:- https://stm.bookpi.org/NICB-V3/article/view/4017
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