Abstract
A novel biodiesel from Curcas oil with high oxygen content was synthesized in the study, which was conducted to analyze its physicochemical properties and engine emissions performance. The novel biodiesel named Curcas oil propylene glycol monoethyl ether ester was prepared, whose molecular structure was analyzed and validated by FT-IR, 1H-NMR, GPC and ultimate analysis. This article is also intended to study the emission performance through engine bench test. The tests analyzed emission characteristics of the three fuels with different blending ratio, including smoke, CO, HC and NOx under the same engine loads Compared with 0 # diesel (B0), under the low load conditions at rotation speed of 1500rpm, smoke emissions of B100 reduced by 43% to 78%; CO emissions decreased 25.0% ~ 50.0%; HC emissions by 44.4 % ~ 58.3%; while little change with NOx emission levels. At a high load conditions with 2100rpm speed, smoke emissions of B100 reduced by 40.0% to 63.2%, CO emissions reduced by 25.0% to 66.7%, HC emissions reduced by 45.5% to 55.6%, and NOx emissions reduced by 24.1% to 32.2%. The results showed that when the engine fueled with biodiesel and blended fuel emission performance has been greatly improved because Curcas oil diethylene glycol ether esters was introduced into an ester group, which has a higher oxygen content. Through the above experimental verification, this biodiesel has good discharge performance and the wide application in the further future.
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More From: DEStech Transactions on Environment, Energy and Earth Science
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