Characterization and transesterification of Iranian bitter almond oil for biodiesel production

In the present work the production of biodiesel using bitter almond oil (BAO) in a potassium hydroxide catalyzed transesterification reaction was investigated. The BAO was obtained from resources available in Iran and its physical and chemical properties including iodine value, acid value, density, kinematic viscosity, fatty acid composition and mean molecular weight were specified. The low acid value of BAO (0.24 mg KOH/g) indicated that the pretreatment of raw oil with acid was not required. The fatty acid content analysis confirmed that the contribution of unsaturated fatty acids in the BAO is high (84.7 wt.%). Effect of different parameters including methanol to oil molar ratio (3-11 mol/mol), potassium hydroxide concentration (0.1-1.7% w/w) and reaction temperature (30-70 °C) on the production of biodiesel were investigated. The results indicated that these parameters were important factors affecting the tranesterification reaction. The fuel properties of biodiesel including iodine value, acid value, density, kinematic viscosity, saponification value, cetane number, flash point, cloud point, pour point and distillation characteristics were measured. The properties were compared with those of petroleum diesel, EN 14214 and ASTM 6751 biodiesel standards and an acceptable agreement was observed.

[1]  Xuewu Zhang,et al.  Biodiesel Production by Microalgal Biotechnology , 2018, Renewable Energy.

[2]  A. S. Ramadhas,et al.  Biodiesel production from high FFA rubber seed oil , 2005 .

[3]  D. Leung,et al.  Transesterification of neat and used frying oil : Optimization for biodiesel production , 2006 .

[4]  Bin Liang,et al.  Production of biodiesel from Jatropha curcas L. oil , 2009, Comput. Chem. Eng..

[5]  M. P. Dorado,et al.  EXHAUST EMISSIONS FROM A DIESEL ENGINE FUELED WITH TRANSESTERIFIED WASTE OLIVE OIL , 2003 .

[6]  Bhaskar Singh,et al.  Development of biodiesel: Current scenario , 2009 .

[7]  H. Raheman,et al.  Process optimization for biodiesel production from mahua (Madhuca indica) oil using response surface methodology. , 2006, Bioresource technology.

[8]  Abderrahim Bouaid,et al.  Production of biodiesel from bioethanol and Brassica carinata oil: oxidation stability study. , 2009, Bioresource technology.

[9]  D. Firestone,et al.  Official methods and recommended practices of the AOCS , 2009 .

[10]  O. Njoku,et al.  Production of biodiesel using rubber [Hevea brasiliensis (Kunth. Muell.)] seed oil , 2000 .

[11]  S. Meneghetti,et al.  Ethanolysis of castor and cottonseed oil: A systematic study using classical catalysts , 2006 .

[12]  Andrew C. Matheaus,et al.  Cetane numbers of branched and straight-chain fatty esters determined in an ignition quality tester , 2003 .

[13]  A. Phan,et al.  Biodiesel production from waste cooking oils , 2008 .

[14]  Dong Ying,et al.  Biodiesel production from crude rice bran oil and properties as fuel , 2009 .

[15]  A. Saydut,et al.  Methyl ester of peanut (Arachis hypogea L.) seed oil as a potential feedstock for biodiesel production , 2009 .

[16]  H. J. Berchmans,et al.  Biodiesel production from crude Jatropha curcas L. seed oil with a high content of free fatty acids. , 2008, Bioresource technology.

[17]  Ahindra Nag,et al.  Biofuels Refining and Performance , 2008 .

[18]  Ayhan Demirbas,et al.  Political, economic and environmental impacts of biofuels: A review , 2009 .

[19]  G. Vicente,et al.  Optimisation of integrated biodiesel production. Part I. A study of the biodiesel purity and yield. , 2007, Bioresource technology.

[20]  P. Devan,et al.  A study of the performance, emission and combustion characteristics of a compression ignition engine using methyl ester of paradise oil-eucalyptus oil blends , 2009 .

[21]  Farooq Anwar,et al.  Okra (Hibiscus esculentus) seed oil for biodiesel production , 2010 .

[22]  L. C. Meher,et al.  Optimization of alkali-catalyzed transesterification of Pongamia pinnata oil for production of biodiesel. , 2006, Bioresource technology.

[23]  Guanyi Chen,et al.  Biodiesel production from waste cooking oil via alkali catalyst and its engine test , 2008 .

[24]  Erik Dahlquist,et al.  Synthesis of biodiesel from vegetable oil with methanol catalyzed by Li-doped magnesium oxide catalysts , 2010 .

[25]  M. Rieger.  Introduction to Fruit Crops , 2006 .

[26]  Rafael Hernandez,et al.  Biodiesel production by in situ transesterification of municipal primary and secondary sludges. , 2009, Bioresource technology.

[27]  M. C. Gutiérrez,et al.  Application of the factorial design of experiments to biodiesel production from lard , 2009 .

[28]  S. Deng,et al.  Optimization of biodiesel production from edible and non-edible vegetable oils , 2009 .

[29]  U. Rashid,et al.  Production of biodiesel through optimized alkaline-catalyzed transesterification of rapeseed oil , 2008 .

[30]  R. Chakraborty,et al.  Parametric sensitivity in transesterification of waste cooking oil for biodiesel production—A review , 2009 .

[31]  M. Mbarawa,et al.  Alkaline catalyzed biodiesel production from moringa oleifera oil with optimized production parameters , 2010 .

[32]  H. Raheman,et al.  Biodiesel production from mahua (Madhuca indica) oil having high free fatty acids , 2005 .

[33]  D. Leung,et al.  A review on biodiesel production using catalyzed transesterification , 2010 .

[34]  Mercedes Martínez,et al.  Optimisation of integrated biodiesel production. Part II: a study of the material balance. , 2007, Bioresource technology.

[35]  J. Encinar,et al.  Biodiesel from Used Frying Oil. Variables Affecting the Yields and Characteristics of the Biodiesel , 2005 .

[36]  Ian McCallum,et al.  Optimizing biodiesel production in India , 2009 .

[37]  L. C. Meher,et al.  Technical aspects of biodiesel production by transesterification—a review , 2006 .