Biomedical Engineering Reference
In-Depth Information
8
Synthesis of Biodiesel/
Bio-Oil from Microalgae
Bhaskar Singh
Department of Applied Chemistry
Indian Institute of Technology (BHU)
Varanasi, India
Yun Liu
College of Life Science and Technology
Beijing University of Chemical Technology
Beijing, China
Yogesh C. Sharma
Department of Applied Chemistry
Indian Institute of Technology (BHU)
Varanasi, India
CONTENTS
8.1 Introduction .................................................................................................... 99
8.2 Esterification/Transesterification .................................................................. 101
8.3 Thermochemical ........................................................................................... 103
8.4 World Scenario on Production and Application of Biodiesel ....................... 108
8.5 Biofuel/Biodiesel from Microalgal Oil as a Potential Alternative to
Other Fuels.................................................................................................... 109
8.6 Conclusion .................................................................................................... 110
Acknowledgments .................................................................................................. 110
References .............................................................................................................. 110
8.1 INTRODUCTION
Microalgae have emerged as a potential feedstock for the production of biodiesel. The
steps involved in the production of bio-oil and biodiesel from microalgae include cul-
tivation, harvesting, dewatering and concentrating microalgae, extraction of oil/lip-
ids from the microalgae, and separation of triglycerides and free fatty acids from the
crude lipids (for the synthesis of biodiesel). The final step consists of pyrolysis or ther-
mochemical catalytic liquefaction for the production of bio-oil and esterification or
99
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