کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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241851 | 466343 | 2010 | 10 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Biodiesel and renewable diesel: A comparison Biodiesel and renewable diesel: A comparison](/preview/png/241851.png)
The search for alternatives to petroleum-based fuels has led to the development of fuels from various sources, including renewable feedstocks such as fats and oils. Several types of fuels can be derived from these triacylglycerol-containing feedstocks. One of them is biodiesel, which is defined as the mono-alkyl esters of vegetable oils or animal fats. Biodiesel is produced by transesterifying the oil or fat with an alcohol such as methanol under mild conditions in the presence of a base catalyst. Another kind of product that can be obtained from lipid feedstocks is a fuel whose composition simulates that of petroleum-derived diesel fuel. This kind of fuel, probably best termed “renewable diesel”, is produced from the fat or oil by a hydrodeoxygenation reaction at elevated temperature and pressure in the presence of a catalyst. This article discusses in a general and comparative fashion aspects such as fuel production and energy balance, fuel properties, environmental effects including exhaust emissions and co-products. Among the questions that are addressed are if these fuels compete with or complement each other and what the effect of production scale may be.
Journal: Progress in Energy and Combustion Science - Volume 36, Issue 3, June 2010, Pages 364–373