Abstract
Strontium oxide (SrO) deposited onto a porous titanium (Ti)-based scaffold (P-Ti) is a promising and novel approach for high-throughput transesterification. Notably, a highly porous and calcinated scaffold provides a load-bearable support for a continuous process, while the calcinated SrO catalyst, as it is well distributed inside the porous matrix, can extend its surface contact area with the reactant. In this work, the formation of transesterification reaction with the conversion and production of olive oil to biodiesel inside the porous matrix is particularly examined. The as-designed SrO-coated porous titanium (Ti)-based scaffold with 55% porosity was prepared via a hydrothermal procedure, followed by a dip coating method. Mechanical tests of samples were conducted by a nanoindentator, whereas the physical and chemical structures were identified by IR and Raman Spectroscopies. The results implied that SrO catalysts can be firmly deposited onto a load-bearable, highly porous matrix and play an effective role for the transesterification reaction with the oil mass. It is promising to be employed as a load-bearable support for a continuous transesterification process, such as a process for batch or continuous biodiesel production, under an efficient heating source by a focused microwave system.
Highlights
Nowadays, the development of industries as well as the demand toward a high living standard have increased the consumption of energy and the use of petroleum/fuel cells
In this study, a highly porous Ti-based scaffold (55% porosity, P-Ti_55) with considerable strength is employed for conducting a load-bearable application
Strontium oxide (SrO) as the catalyst is spin-coated into the porous matrix and calcinated with Ti-based scaffold (i.e., Srx-P-Ti_55, x = 0.5 or 0.7 for this study)
Summary
The development of industries as well as the demand toward a high living standard have increased the consumption of energy and the use of petroleum/fuel cells. For their industrial development, the increased use of the imported petroleum leads to intensifying and localizing the extent of air pollution, mainly caused by the emission of CO2 and, as a consequence, to magnifying the global warming problem. Many extensive negotiations such as the Kyoto Protocol [1] have been conducted and established to protect our living environment and to make it sustainable. Its mechanical and chemical properties will be characterized and discussed in this study
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