Development of a test method for distillation of diesel-biodiesel-alcohols mixtures at reduced pressure

[摘要] Increased environmental awareness and depletion of fossil petroleum resources are driving the automotive industry to seek out and use alternative fuels. For instance, the biofuel is a major renewable energy source to supplement declining fossil fuel resources. The addition of alcohols like methanol and ethanol is practical in biodiesel blends due to its miscibility with the pure biodiesel. Alcohols also improve physico-chemical properties of biodiesel blends, which lead to improved combustion efficiency. Proper volatility of fuels is critical to the operation of internal combustion engines with respect to both performance and emissions. Volatility may be characterised by various measurements, the most common of which are vapour pressure, distillation and the vapour/liquid ratio. The presence of ethanol or other oxygenates may affect these properties and, as a result, performance and emissions, as well. However, in the case of diesel-biodiesel-alcohols mixtures, the variance of component volatility makes difficult the analysis of the overall volatility. Thus, the paper presents an experimental method of distilling diesel-biodiesel-alcohols mixtures by adjusting the boiler pressure of an i-Fischer Dist equipment.

[发布机构] University of Piteti, Dep. Automobiles and Transport, 1, Tg. din Vale Street, Piteti, Romania^1;Le Cnam Paris, 292, rue St. Martin, Paris, France^2;University of Piteti, Dep. of Natural Science, 1, Tg. din Vale Street, Piteti, Romania^3

[效力级别] 运输工程 [学科分类] 工业工程学

[关键词] Combustion efficiencies;Component volatility;Environmental awareness;Experimental methods;Fossil fuel resources;Performance and emissions;Physicochemical property;Renewable energy source