000 02216nab a2200205 4500
005 20260520000847.0
008 260224s2009 xxu
245 0 0 _aProduction and evaluation of biodiesel from field pennycress (thlaspi arvense L.) oil
260 _a
_b
_cjul./ago. 2009
270 _a16/06/2010 ; 16/06/2010
300 _a7 p. ; 4149-4155
520 _aTranscripción del resumen del autor. Field pennycress (Thlaspi arvense L.) oil is evaluated for the first time as a feedstock for biodiesel production. Biodiesel was obtained in 82 wt % yield by a standard transesterification procedure with methanol and sodium methoxide catalyst at 60 °C and an alcohol to oil molar ratio of 6:1. Acid-catalyzed pretreatment to reduce the acid value of crude field pennycress oil resulted in a yield after methanolysis of 94 wt %. Field pennycress oil had high contents of erucic (13(Z)-docosenoic; 32.8 wt %) and linoleic (9(Z),12(Z)-octadecadienoic; 22.4 wt %) acids with other unsaturated fatty acids comprising most of the remaining fatty acid profile. As a result, the methyl esters (biodiesel) obtained from this oil exhibited a high cetane number of 59.8 and excellent low temperature properties, as evidenced by cloud, pour, and cold filter plugging points of -10, -18, and -17 °C, respectively. The kinematic viscosity and oxidative stability (Rancimat method) of field pennycress oil methyl esters were 5.24 mm2/s (40 °C) and 4.4 h (110 °C), respectively. Other fuel properties such as acid value, lubricity, free and total glycerol content, surface tension, as well as sulfur and phosphorus contents were also determined and are discussed in light of biodiesel standards such as ASTM D6751 and EN 14214. Also reported for the first time are cetane numbers of methyl esters of erucic and gondoic (methyl 11(Z)-eicosenoate) acids, which were found to be 74.2 and 73.2, respectively. In summary, field pennycress oil appears to an acceptable feedstock for biodiesel production.
581 _a4
773 0 _tEnergy & fuels
_g23
942 _cARTICULO
100 1 _aMoser, Bryan R.
_942817
100 1 _aKnothe, Gerhard
_936899
100 1 _aVaughn, Steven F.
_942818
999 _c171097
_d171097