Thermal Treatment of Natural Carbonate Catalyst for Biodiesel Production from Yemeni Jatropha Oil


Authors : Rokhsana Mohammed Ismail; Amal Mohammed Ahmed

Volume/Issue : 2nd ICTSA-2022

Google Scholar : https://bit.ly/3TmGbDi

Scribd : https://bit.ly/3lPA3aB

DOI : https://doi.org/10.5281/zenodo.7788640

In this paper, heterogeneous catalysts based on natural dolomite mineral in the transestrification of Jatropha oil into biodiesel. Investigating the applicability of natural basic carbonate minerals as potential catalysts in biodiesel production from Yemeni Jatropha oil. The effect of thermal treatment of these minerals had been addressed and correlating the catalytic behavior with the surface properties of these systems was attempted. XRD measurements show that the dolomite mineral is highly crystalline with small amounts of calcite. Increasing the temperature of thermal treatment up to 500oC has no significant effect on the X-ray diffraction patterns, but upon further increase of the temperature to 600oC the dolomite phase was found to decompose due to the decarbonisation of MgCO3. Temperatures as high as 800oC were found to be necessary to start the thermal decomposition of calcium carbonate, but appreciable amounts of calcite remain even after several hours of thermal treatment at 800oC. The transestrification of Jatropha oil was conducted at 60oC with a methanol-tooil molar ratio of 6:1. Dolomite samples thermally treated up to a temperature of 700oC showed only low activities in the transestrification of Jatropha oil (conversion~20%). Raising the temperature of thermal treatment to 800oC increased the activity significantly to 95%-conversion, apparently due to the formation of strongly basic CaO. It was found that heating the mineral for at least 30 minutes at 800oC is necessary to produce a highly active system. The optimum catalyst-tooil mass ratio was determined to be 1:50.

Keywords : Dolomite, Transestrification, Biodiesel, Thermal Treatment, Heterogeneous, Catalysts.

CALL FOR PAPERS


Paper Submission Last Date
29 - February - 2024

Paper Review Notification
In 1-2 Days

Paper Publishing
In 2-3 Days

Never miss an update from Papermashup

Get notified about the latest tutorials and downloads.

Subscribe by Email

Get alerts directly into your inbox after each post and stay updated.
Subscribe
OR

Subscribe by RSS

Add our RSS to your feedreader to get regular updates from us.
Subscribe