« Previous AbstractChilling-induced tomato flavor loss is associated with altered volatile synthesis and transient changes in DNA methylation    Next AbstractElectrochemical oxidation of gaseous benzene on a Sb-SnO(2)/foam Ti nano-coating electrode in all-solid cell »

Bioresour Technol

Title:		"Effect of acidic, neutral and alkaline conditions on product distribution and biocrude oil chemistry from hydrothermal liquefaction of microalgae"
Author(s):		Zhang B; He Z; Chen H; Kandasamy S; Xu Z; Hu X; Guo H;
Address:		"Institute for Energy Research, Jiangsu University, Zhenjiang 212013, PR China. Institute for Energy Research, Jiangsu University, Zhenjiang 212013, PR China. Electronic address: zxhe@ujs.edu.cn. School of Materials Science and Engineering, University of Jinan, Jinan 250022, PR China"
Journal Title:		Bioresour Technol
Year:		2018
Volume:		20180901
Issue:
Page Number:		129 - 137
DOI:		10.1016/j.biortech.2018.08.129
ISSN/ISBN:		1873-2976 (Electronic) 0960-8524 (Linking)
Abstract:		"Hydrothermal liquefaction (HTL) of microalgae produces high amount of water-insoluble organic compounds, the biocrude oil. Using high-growth-rate Spirulina platensis as feedstock, product fraction distribution and biocrude oil chemistry from HTL at a temperature of 240-300?ª+ degrees C under acidic, neutral and alkaline condition were studied. Positive effects on biocrude oil yield were only found with KOH and acetic acid, and these effects were stronger under milder HTL conditions. FT-ICR MS showed that O(2) class in the biocrude was high due to higher carbohydrate in the biomass, numbers of N(3)O(5-6) species present in the sample from acetic acid run, indicating its less decarboxylation ability. GC-MS showed more ketones and amides were formed from fatty acids in catalytic HTL, and this effect was sensitive toward reaction temperature. GPC suggested more light volatiles were in biocrude from KOH run, while analysis from NMR, FT-IR and elemental confirmed its high oil quality"
Keywords:		"Biomass Catalysis Cyanobacteria/*chemistry Gas Chromatography-Mass Spectrometry Hydrogen-Ion Concentration Microalgae/*chemistry Petroleum Spectroscopy, Fourier Transform Infrared Temperature Acetic acid Biofuel Hydrothermal liquefaction Koh Microalgae;"
Notes:		"MedlineZhang, Bo He, Zhixia Chen, Haitao Kandasamy, Sabariswaran Xu, Zhixiang Hu, Xun Guo, Hongyu eng England 2018/09/15 Bioresour Technol. 2018 Dec; 270:129-137. doi: 10.1016/j.biortech.2018.08.129. Epub 2018 Sep 1"