Hydrodeoxygenation of Microalgae Oil in a Microreactor

You will be able to download and print a certificate for PDH credits once the content has been viewed. If you have already viewed this content, please click here to login.

Removal of residual oxygen from long chain lipids via hydrodeoxygenation (HDO) will produce a liquid fuel comprising mostly straight chain alkanes , which mimics diesel. Green diesel is chemically similar to petroleum-derived diesel , and it can be used in existing internal combustion engines without any modification. Microalgae has been favored as a feedstock for green diesel , on account of its high acylglycerols contents and faster growth rate than terrestrial oil crops. Moreover , HDO , a process that uses high pressure hydrogen to remove oxygen is CO2 neutral. In the present work , sulfided NiMo/Al2O3 catalyst was evaluated for HDO with the aim of converting algae oil to diesel-like hydrocarbons. Microreactor was used due to its advantages compared to conventional reactors. These advantages include: 1) enhanced mass and heat transfer , 2) less energy consumption , 3) faster and cost-saving screening of materials and process , 4) easier scale-up , and 5) improved safety. Changes in the hydrogen consumption and the product composition as a function of operating conditions: reaction temperature , hydrogen partial pressure , residence time were determined quantitatively by GC-TCD and FID. This work will provide baseline data which will guide future work on the HDO of algae oil.


Share This Post:


Credits 0.5 Use credits
List Price $25.00 Buy now
AIChE Members $15.00 Buy now
AIChE Undergraduate Student Members Free Free access
AIChE Graduate Student Members Free Free access