Comparative evaluation of thermal degradation for biodiesels derived from various feedstocks through transesterification

Blends of diesel and biodiesel of cooking oil waste and moringa (Moringa oleífera Lam): kinetic and thermal analysis and monitoring during storage

“…The onset temperature of the thermal event for the samples was higher than 100°C and the hypothesis of an eventual presence of water was excluded. The behavior of the TG curves was similar to others reported in literature for biodiesel with same quality [16,18,19,22].…”

“…These methods offer integral resolution of the equation of the Arrhenius temperature and without supposition of the model kinetic-modelfree methods. The use of thermogravimetric data in the determination of the kinetic parameters is largely used in the determination of the biofuel quality [16][17][18][19] and represents an advance in the study of biofuels: characteristics of combustion can be evaluated using motor prototypes and through this method a large quantity of fuel need to be burned. The determination of the kinetic parameters using thermogravimetric data shows low cost when compared to prototypes used for the same objective and provides the same information using a small quantity of sample in the analysis.…”

Influences of ignition improver additive on ternary (diesel-biodiesel-higher alcohol) blends thermal stability and diesel engine performance

“…2 and 3. It was observed from the figures that, initially the TG curves attain ascent because of buoyancy and molecular adsorption effect [37]. While the TGA curves were in descending trend with increasing temperature due to volatilization of weak chemical bonds and small molecules of biodiesel blends [38].…”

“…Moreover, compared to the alcohol treated biodiesel blends, EHN treated ternary blends showed good thermal behavior and increase in EHN proportion in the blends makes them more thermally stable. Lower content of the unsaturated fatty acids in biodiesel is principally responsible for the higher thermal stability [37]. Diesel is less thermally stable than biodiesel due to greater tension in chains of the complex structure of biodiesel.…”

The stability evaluation of lime mud as transesterification catalyst in resisting CO2 and H2O for biodiesel production

“…[1,2]. Chemically, biodiesel is a mixture of fatty acid methyl esters (FAME) normally obtained by transesterification under the catalytic effect of bases, acids or enzymes [3][4][5][6][7][8][9][10]. Calcium oxide (CaO), a representative and promising heterogeneous base catalyst, has been adopted in transesterification for its abundant availability, environmental friendliness and high catalytic activity [6,7].…”