Properties of Bio-Oil from Alga Fast Pyrolysis

Author

Guo, Xiujuan ; Wang, Shurong ; Guo, Zuogang ; Luo, Zhongyang

Author_Institution

State Key Lab. of Clean Energy Utilization, Zhejiang Univ., Hangzhou, China

fYear

2011

fDate

25-28 March 2011

Firstpage

1

Lastpage

4

Abstract

Properties of bio-oil from alga fast pyrolysis were studied based on the molecular distillation. The composition of bio-oil and fractions was analyzed by GC-MS, and the thermal behavior of evaporation and decomposition was investigated using TG-FTIR. Fast pyrolysis of alga obtained a bio-oil yield of 20.54 % and a char yield of 31.12 % due to its low cellulose and hemicellulose content, and high lignin and extractives content. Light fraction accounted for about 85 % of the total bio-oil. It was mainly composed of volatile compounds, so its weight loss was completed before 200°C and evaporation was dominant during pyrolysis. But for heavy fraction, the weight loss was in the temperature range of 25-650°C due to the decomposition of phenols or sugars. Compared with bio-oil, light fraction had a worse thermal stability, and heavy fraction is better.

Keywords

Fourier transform spectra; biofuel; distillation; evaporation; infrared spectra; pyrolysis; thermal analysis; thermal stability; alga fast pyrolysis; bio-oil property; extractive content; hemicellulose content; light fraction; lignin content; molecular distillation; phenol decomposition; sugar decomposition; temperature 25 degC to 650 degC; thermal behavior; thermal stability; volatile compound; Biomass; Compounds; Fuels; Hafnium; Heating; Production; Thermal stability;

fLanguage

English

Publisher

ieee

Conference_Titel

Power and Energy Engineering Conference (APPEEC), 2011 Asia-Pacific

Conference_Location

Wuhan

ISSN

2157-4839

Print_ISBN

978-1-4244-6253-7

Type

conf

DOI

10.1109/APPEEC.2011.5748790

Filename

5748790