Porous magnesia-alumina composite nanoparticle for biodiesel production
| Autor: | Yu-Shen Chen, Thanh Truc Nguyen Hoang, De-Hao Tsai, Che-Ming Yang |
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| Rok vydání: | 2021 |
| Předmět: |
Materials science
020209 energy General Chemical Engineering Organic Chemistry Composite number Energy Engineering and Power Technology Nanoparticle 02 engineering and technology Transesterification Fuel Technology 020401 chemical engineering Chemical engineering Yield (chemistry) Biodiesel production Desorption 0202 electrical engineering electronic engineering information engineering Particle 0204 chemical engineering Porosity |
| Zdroj: | Fuel. 285:119203 |
| ISSN: | 0016-2361 |
| DOI: | 10.1016/j.fuel.2020.119203 |
| Popis: | A facile, aerosol-based controlled synthesis of porous Mg-Al-O composite nanoparticle is demonstrated for developing solid base catalysts with high performance for transesterification of soybean oil to biodiesel. Pore size, crystallite size and chemical composition of the Mg-Al-O composite nanoparticle are tunable by design. A significantly higher surface area (by 1.8 times) and a smaller pore size (i.e., decreased by 20%) of the Mg-Al-O composite particle achieved by using the aerosol-based synthesis than the conventional method. Hybridization with Al2O3 remarkably increased surface area of the MgO particle by decreasing pore size using homogenous Al precursor or increasing pore volume via choosing heterogeneous Al precursor. The fatty acid methyl esters (FAME) yield catalyzed by Mg-Al-O composite particle was significantly higher in comparison to the results without catalysts (i.e., a maximum of 3.4×). The FAME yield was proportional to methanol-to-oil molar ratio, and the highest yield was identified at Mg/Al = 4, in accordance to the highest number of strong basic site quantified via a CO2-based temperature-programmed desorption study. Operation stability (i.e., FAME yield declined by |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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