The dwarf-castor can produce a large amount of biomass oil, which also can improve air quality and inhibit global warming. The dwarf-castor is drought tolerant, pest-resistant, requires less artificial care, and biomass oil could be harvested for three times in a year. So far, the dwarf-castor is only for harvesting terrestrial biomass by mechanical harvesting in the world. Differential scanning calorimetry (DSC) was used to obtain the crystallization temperature and the enthalpy of endothermic and exothermic of the dwarf-castor oil, the biodiesel, petrodiesel, and the environmentally friendly diesel. Moreover, the infrared spectrometer (FT-IR) was also used in the results of transesterification for identifying the characteristic functional groups. Furthermore, the heat of combustion and the kinematic viscosity of environmentally friendly diesel were conducted by bomb calorimeter and viscometer, respectively, which were compared with the various proportions of biodiesel for mixing with petro diesel, and then to obtain the best condition of mixtures B20, (heat of combustion 43.44 MJ/kg; kinematic viscosity 4.44 mm2/s) as a suitable environmentally friendly diesel of dwarf-castor’s biodiesel.
