Abstract
Renewable fuel production from vegetable oil and fat or its fatty acids by direct decarboxylation has been widely reported. An innovative approach to produce drop-in fuel via thermal catalytic decarboxylation of basic soap derived from palm stearin reported in this research. The catalytic effect of the calcium and magnesium metals in the basic soap and its decarboxylation on drop-in fuel yield and product distribution was studied. The catalytic effect was tested in the temperature range up to 370°C and atmospheric pressure for 5 hours in a batch reactor. It has been proved that the calcium basic soap decarboxylation, effectively produce the drop-in fuel in carbon ranges C8 – C20, in which more than 78% selectivity toward alkane. Whereas, only 70% selectivity toward alkane has been resulted from the magnesium basic soap decarboxylation.
Highlights
Nowadays, a considerable of attention has been devoted to producing renewable diesel via deoxygenation of vegetable oils and fats or fatty acids
The purpose of this study is to prove that the decarboxylation of reactants from calcium basic soaps derived from palm stearin, can produce high green diesel content of n-alkanes and free ketones
The thermal catalytic decarboxylation of two different types of basic soaps, i.e., magnesium and calcium basic soap derived from palm stearin oils, respectively was studied
Summary
A considerable of attention has been devoted to producing renewable diesel (drop-in fuel) via deoxygenation of vegetable oils and fats or fatty acids. Biodiesel as one of the renewable liquid fuels that have been popular can only be used in a certain amount by blended with petrodiesel as an additive. A blended fuel comprised of 20% biodiesel and 80% petrodiesel is called B20 [1]. The direct production of liquid biohydrocarbons from vegetable oils and fats via the hydrodeoxigenation method has been reported by many researchers. The disadvantages of the hydrodeoxigenation process of oils and fats are using noble metal catalysts [2] and require fossil fuel-derived hydrogen. That the process is not 100% renewable
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