@article{8603aab0fd9311dda37d000ea68e967b,
title = "Novel investigation of enzymatic biodiesel reaction by isothermal calorimetry",
abstract = " Isothermal calorimetry ITC has been used to investigate enzymatic biodiesel production. The transesterification of rapeseed oil with methanol and ethanol was catalyzed by the immobilized lipase Novozym 435 at 40°C. The ITC-experiments clearly demonstrate the possibilities of investigating complex reaction mixture kinetics using ITC. It is possible to determine thermodynamic properties like reaction enthalpy and reaction rate, and the difficulty in actually measuring the true non-mass transfer limited reaction kinetics is exposed by the high time resolution of ITC. Based on the measured enthalpy and composition change in the system, the heat of reaction at 40°C for the two systems has been determined to -9.8 ± 0.9 kJ/mole biodiesel formed from rapeseed oil and methanol, and - 9.3 ± 0.7 kJ/mole when rapeseed oil and ethanol is used. ",
keywords = "lipase, Kalorimetri, biodiesel, lipase, Calorimetry, Biodiesel",
author = "{Fjerb{\ae}k S{\o}toft}, Lene and Peter Westh and Christensen, {Knud Villy} and Birgir Norddahl",
year = "2010",
month = mar,
day = "30",
doi = "10.1016/j.tca.2010.01.014",
language = "English",
volume = "501",
pages = "84--90",
journal = "Thermochimica Acta",
issn = "0040-6031",
publisher = "Elsevier",
number = "1-2",
}