Fuel quality assessment of biodiesel produced from combination of different animal fats and vegetable oils

Animal fat (chicken and beef fat) and vegetable oil (ground nut oil and palm oil) were gotten commercially, treated, combined to know their characteristic physico-chemical properties, ASTM and AOCS methods were used. Parameters with highest results for raw oils include GOCF- Acid Value (15.70±0.01mgKOH/g), GOCF- Free Fatty Acid (7.90±0.07%), PO- Saponification Value (208.40±0.06 mgKOH/g), POCF- Peroxide Value (52.00±0.35mEq/Kg), GOPO- Iodine Value (64.50±0.03 gI2/100g), GOPO- Relative Density (0.93±0.01), GOCF- Flash Point (242.80±0.12oC), GOPO- Pour Point (5.70±0.10oC), CFBF- Kinematic Viscosity (5.70±0.04mm2/s) GOBF- Cloud point (7.50±0.10oC). The transesterification products with highest values were PO- Acid Value (2.90±0.02mgKOH/g), PO- Free Fatty Acid (1.50±0.07%), POBF- Saponification Value (259.10±0.24 mgKOH/g), POBF- Peroxide Value (18.00±0.35mEq/Kg), GO- Iodine Value (41.20±0.01gI2/100g), GOPO and GOCF - Relative Density (0.89±0.00), GOPO- Flash Point (158.80±0.31oC), CF- Pour Point (4.4±0.17oC), GOCF- Kinematic Viscosity (4.40±0.15mm2/s), GO- Cloud point (8.7±0.21oC). Transesterification of combined oils and fats is a new trend in the production of biodiesel, percentage yield of biodiesel were significant, with GOCF giving a high yield of 82.40% among the combinations. The availability and sustainability of sufficient supplies of less expensive feed stocks will be a crucial determinant in delivering a competitive biodiesel for commercial uses.