Measurements, Correlations and Comparison of Biodiesel Blend Properties with three Commercial Diesel Fuels, Kerosene and Benzene

摘要

In this experimental work, waste mixture of sunflower and rapeseed (WSRME), waste canola (WCME), waste sunflower (WSME), hazelnut (HNME) and refined canola oil (RCME) methyl ester biodiesel were prepared via transesterification process. Mixtures of biodiesel with three commercial diesel fuels, namely, petroleum diesel fuel, ultra-low sulfur diesel winter (ULSDW) and ultra-low sulfur diesel summer (ULSDS) were used to study the variation of density and kinematic viscosity as a function of volume fraction of biodiesel. It has been found that the physical-chemical properties are within the range of different specification standards. Engine problems with the use of biodiesel-fuel blends that contain higher percentages of the biodiesel need to be solved in order to utilize the advantages of biodiesel in environmental and economic ways. The mentioned problems can also be solved by blending biodiesel with another low density or viscosity fuel such as kerosene and benzene. In the present work, biodiesel have been blended with kerosene and benzene with various volume fractions. Furthermore, the cold flow properties like cloud point (CP) and pour point (PP) of biodiesel blends were also examined. The results showed that overall physico-chemical characteristics of blending fuel were reduced by the increasing of kerosene and benzene concentrations. Consequently, kerosene and benzene can play a role as a diluents agent to reduce the characteristic of the cold flow properties of biodiesel. Moreover, correlations were developed for predicting temperature dependent viscosity and densities based on the volume fraction of biodiesel.