Effect of blends of Diesel and Palm-Castor biodiesels on viscosity, cloud point and flash point

Abstract Many countries are promoting the use of biodiesel as a direct replacement for, or blend stock component with petroleum based diesel fuel using policy instruments that aim to gradually increase the use of vegetable oil biodiesel–diesel ratio from the current (or inexistent) blend to values among 15–20% by an specific upcoming year. For the particular use of palm oil as biomass raw material in the diesel–palm oil biodiesel (Diesel–POB) blend that goal could bring some difficulties because the high content of saturated fatty acids in POB could confer a problematic high cloud point to the fuel mixtures. On the other hand, the use of castor oil biodiesel in the blends could lower the cloud point value but, simultaneously, increase the viscosity of the diesel–biodiesel blends. In this article there were evaluated three properties (viscosity, cloud point and flash point) of binary mixtures castor oil biodiesel (COB), palm oil biodiesel (POB) and diesel fuel. It was also measured the cloud point for some ternary bends of Diesel/POB/COB. It was found that diesel–castor oil biodiesel (Diesel COB) blends showed appropriate and approximately the same cloud point temperatures when the biodiesel concentration in those mixtures was under 40% in volume. The use of palm oil biodiesel–castor oil biodiesel (POB COB) blends to obtain a type of pure biodiesel with both low cloud point and viscosity was not a practical option. Experimental data were also compared with the predictions of different published models for diesel–biodiesel mixtures. The general thermodynamic expressions used for estimation of viscosity and cloud point for liquid mixtures showed lower deviations from experimental values properties predictions from other proposed empirical models.

[1]  M. Sharma,et al.  Jatropha-Palm biodiesel blends: An optimum mix for Asia , 2007 .

[2]  W. Crosby,et al.  A Review on the Challenges for Increased Production of Castor , 2012 .

[3]  Rushang M. Joshi,et al.  FLOW PROPERTIES OF BIODIESEL FUEL BLENDS AT LOW TEMPERATURES , 2007 .

[4]  F. Skopal,et al.  Relationships among flash point, carbon residue, viscosity and some impurities in biodiesel after ethanolysis of rapeseed oil. , 2010, Bioresource technology.

[5]  Dipti Singh,et al.  Biodiesel production through the use of different sources and characterization of oils and their esters as the substitute of diesel: A review , 2010 .

[6]  J. Agudelo,et al.  Basic properties of palm oil biodiesel–diesel blends , 2008 .

[7]  Kanisa Kittiratanapiboon,et al.  An empirical approach for predicting kinematic viscosities of biodiesel blends , 2010 .

[8]  Amit Sarin,et al.  Effect of blends of Palm-Jatropha-Pongamia biodiesels on cloud point and pour point , 2009 .

[9]  Yunjun Yan,et al.  Physicochemical properties of stillingia oil: Feasibility for biodiesel production by enzyme transesterification , 2009 .

[10]  A. Demirbas,et al.  Importance of biodiesel as transportation fuel , 2007 .

[11]  Mustafa Canakci,et al.  Determination of the density and the viscosities of biodiesel–diesel fuel blends , 2008 .

[12]  S. Meneghetti,et al.  Biodiesel Production from Vegetable Oil Mixtures: Cottonseed, Soybean, and Castor Oils , 2007 .

[13]  Gerhard Knothe,et al.  Kinematic viscosity of biodiesel components (fatty acid alkyl esters) and related compounds at low temperatures , 2007 .

[14]  A. Demirbas,et al.  Progress and recent trends in biodiesel fuels , 2009 .

[15]  F. N. Teixeira,et al.  Cogeneration potential in the Columbian palm oil industry: Three case studies , 2007 .

[16]  G. Knothe.  Dependence of biodiesel fuel properties on the structure of fatty acid alkyl esters , 2005 .

[17]  M. Ramos,et al.  Influence of fatty acid composition of raw materials on biodiesel properties. , 2009, Bioresource technology.

[18]  Suzana Yusup,et al.  Basic properties of crude rubber seed oil and crude palm oil blend as a potential feedstock for biodiesel production with enhanced cold flow characteristics , 2010 .

[19]  M. Lapuerta,et al.  Fatty acid methyl esters (FAMEs) from castor oil: Production process assessment and synergistic effects in its properties , 2010 .

[20]  Haiying Tang,et al.  Fuel properties and precipitate formation at low temperature in soy-, cottonseed-, and poultry fat-based biodiesel blends , 2008 .

[21]  Robert L. McCormick,et al.  Combustion of fat and vegetable oil derived fuels in diesel engines , 1998 .

[22]  Subhash Bhatia,et al.  Feasibility of edible oil vs. non-edible oil vs. waste edible oil as biodiesel feedstock , 2008 .

[23]  G. Knothe,et al.  Kinematic viscosity of biodiesel fuel components and related compounds. Influence of compound structure and comparison to petrodiesel fuel components , 2005 .

[24]  Juan A. Lazzús,et al.  Prediction of Flash Point Temperature of Organic Compounds Using a Hybrid Method of Group Contribution + Neural Network + Particle Swarm Optimization , 2010 .

[25]  Selmo Q. Almeida,et al.  Characterization of beef tallow biodiesel and their mixtures with soybean biodiesel and mineral diesel fuel. , 2010 .

[26]  Shiro Saka,et al.  Thermodynamic study on cloud point of biodiesel with its fatty acid composition , 2006 .

[27]  K. Krisnangkura,et al.  An empirical approach in predicting biodiesel viscosity at various temperatures , 2006 .