A Comparative study of microwave-induced pyrolysis of lignocellulosic and algal biomass

作者：Wang Nan; Tahmasebi Arash; Yu Jianglong^*; Xu Jing; Huang Feng; Mamaeva Alisa

来源：Bioresource Technology, 2015, 190: 89-96.

DOI：10.1016/j.biortech.2015.04.038

• Microwave pyrolysis
• Lignocellulosic biomass
• Microalgae
• Kinetics
• Bio-oil

Microwave (MW) pyrolysis of algal and lignocellulosic biomass samples were studied using a modified domestic oven. The pyrolysis temperature was recorded continuously by inserting a thermocouple into the samples. Temperatures as high as 1170 and 1015 degrees C were achieved for peanut shell and Chlorella vulgaris. The activation energy for MW pyrolysis was calculated by Coats-Redfern method and the values were 221.96 and 214.27 kJ/mol for peanut shell and C. vulgaris, respectively. Bio-oil yields reached to 27.7 wt.% and 11.0 wt.% during pyrolysis of C. vulgaris and peanut shell, respectively. The bio-oil samples from pyrolysis were analyzed by a gas chromatography-mass spectrometry (GC-MS). Bio-oil from lignocellulosic biomass pyrolysis contained more phenolic compounds while that from microalgae pyrolysis contained more nitrogen-containing species. Fourier transform infrared spectroscopy (FTIR) analysis results showed that concentration of OH, C-H, C=O, O-CH3, and C-O functional groups in char samples decreased significantly after pyrolysis.

• 出版日期2015-8
• 单位辽宁科技大学