Journal
ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS
Volume 30, Issue 20, Pages 1896-1902Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/15567030701468050
Keywords
biodiesel; fatty acids; Kraft process; tall oil; wood
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Tall oil is a by-product of coniferous wood recovered in the Kraft pulping process. Fatty acids can be recovered from tall oil by vacuum distillation. Biodiesel is becoming a displacement alternative for petroleum diesel. Chemically, biodiesel is a fatty acid (m)ethyl ester. Fatty acid derivatives as alternative fuels have become more attractive recently because of their environmental benefits and the fact that they are made from renewable resources. After saponification, acidulation, and methylation procedures, methyl esters (biodiesel) of the fatty acids were obtained from the tall oil samples. The properties of the various individual fatty esters that comprise biodiesel determine the overall fuel properties of the biodiesel. The kinematic viscosity and density values of biodiesel from tall oil fatty acids were 4.1-5.3 mm2/sec at 311.2 K and 0.878-0.885 kg/L at 288.7 K, respectively.
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