Hydrothermal Liquefaction of Wheat Straws for Bio-Oil and Related Analyses

2011 ◽  
Vol 347-353 ◽  
pp. 2419-2422 ◽  
Author(s):  
Hui Wang ◽  
Xiao Juan Liu ◽  
Yan Xing Liu ◽  
Peng Chen ◽  
Jian Sun
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Fourier Transform ◽  
Hydrothermal Liquefaction ◽  
Gas Chromatography Mass Spectrometry ◽  
Reaction Conditions ◽  
Heating Value ◽  
Bio Oil ◽  
The Fourier Transform ◽  
Optimal Reaction

The liquefaction of wheat straws in sub-critical water to obtain bio-oil was investigated in this paper. We observed that the reaction temperature (300-374 °C) and reaction time (1-15 min) played important roles in the yield of bio-oil and found the optimal reaction conditions (340 °C, 5 min). The bio-oil was analyzed by elemental analysis, the Fourier transform infrared spectroscopy (FTIR) and gas chromatography-mass spectrometry (GC-MS). Results indicated that the heating value of bio-oil product was 32-38 MJ/kg, higher than that of the bio-oil obtained from microalgae, and the product was composed of ketones, phenol and its derivatives, aromatics and small amount of aldehydes and ethers.

scholarly journals Qualitative characterization of solid residue from hydrothermal liquefaction of biomass using thermochemolysis and stepwise pyrolysis-gas chromatography-mass spectrometry

2017 ◽  
Vol 1 (10) ◽  
pp. 2110-2119 ◽  
Author(s):  
René B. Madsen ◽  
Mads M. Jensen ◽  
Marianne Glasius
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Hydrothermal Liquefaction ◽  
Gas Chromatography Mass Spectrometry ◽  
Solid Residue ◽  
Pyrolysis Gas ◽  
Pyrolysis Gas Chromatography ◽  
Chromatography Mass Spectrometry

Hydrothermal liquefaction of biomass produces solid residue (char) as an unwanted byproduct, which was characterized using advanced techniques in order to understand its composition and formation reactions.

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