433668 Sequential Hydrothermal Liquefaction of Galdieria Sulphuraria Algal Biomass to Enhance Biocrude Oil Yield

Wednesday, November 11, 2015
Exhibit Hall 1 (Salt Palace Convention Center)
Tapaswy Muppaneni1, Kodanda Phani Raj Dandamudi2, Thinesh Selvaratnam3, Nirmala Khandan4, Tanner Schaub5, Barry Dungan6, Francisco Holguin6, Peter Lammers7, Wayne Voorhies8 and Shuguang Deng9, (1)Chemical Engineering, New Mexico State University, Las Cruces, NM, (2)Chemical Engineering, New mexico state university, las cruces, NM, (3)Civil and Environmental Engineering, New Mexico State University, Las Cruces, NM, (4)Civil Engineering Department, New Mexico State University, Las Cruces, NM, (5)College of Agricultural, Consumer and Environmental Sciences, New Mexico State University, Las Cruces, NM, (6)Plant and environmental sciences, New Mexico State university, Las Cruces, NM, (7)Energy Research Laboratory, New Mexico State University, Las Cruces, NM, (8)Molecular biology, New Mexico State university, LAS CRUCES, NM, (9)Chemical Engineering Department, New Mexico State University, Las Cruces, NM

Hydrothermal liquefaction (HTL) helps the macromolecules present in the algal biomass to hydrolyze at lower temperatures (100-200oC) and converts into biocrude oil at higher temperatures (250-350oC). Sequential hydrothermal liquefaction of Galdieria sulphuraria was conducted to extract valuable proteins and carbohydrates at 180oC and to convert the rest into biocrude oil at 300oC. This process enhanced the biocrude oil yield at higher temperature and helped to extract valuable by products at lower temperatures. Direct HTL was also performed to compare the biocrude oil yield obtained via sequential HTL. Experimental parameters studied in this work were reaction temperature (180-300oC), 10% biomass loading, and 30 min. reaction time. The yields of biocrude oil, bio-char, water soluble compounds and gaseous products were calculated based on the experimental results. The high heating values (HHV) of biocrude oil and bio-char were determined with a bomb calorimeter. The biocrude oils and water soluble organics were Analyzed using gas chromatography mass spectrometry (GC-MS) and calorimetrically.

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See more of this Session: Poster Session: Sustainability and Sustainable Biorefineries
See more of this Group/Topical: Sustainable Engineering Forum