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首页> 外文期刊>Fuel >Hydrothermal liquefaction of lignocellulosic biomass feedstock to produce biofuels: Parametric study and products characterization
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Hydrothermal liquefaction of lignocellulosic biomass feedstock to produce biofuels: Parametric study and products characterization

机译：木质纤维素生物量原料的水热液化以生产生物燃料：参数研究和产品表征

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In this work, hydrothermal liquefaction (HTL) of corn stover, obtained from north Alberta farms, was performed at different temperatures of 250, 300, 350 and 375 degrees C, initial pressures (P-i) of 300 and 600 psi and retention time (t(r)) of 0, 15, 30 and 60 min. All experiments were performed in a 250 mL autoclave reactor with 5 g corn stover and 30 mL de-ionized water (corresponding feed to water ratio of 1:6) in inert N-2 condition. The highest yield of heavy oil (29.25 wt%) was obtained at 300 degrees C, final pressure (P-f) of 2200 psi and 0 min retention time. The highest yield of hydrochar (30.21 wt%) was obtained at 350 degrees C, P-f of 3150 psi and t(r) of 15 min. Based on elemental analysis and energy calculation, highest carbon content and higher heating value for heavy oil was 76.32 wt% and 35.13 MJ/kg at 375 degrees C, P-f of 600 psi and t(r) of 15 min; and for hydrochar it was 68.23 wt% and 24.7 MJ/kg at 350 degrees C, P-f of 3150 psi and t(r) of 15 min. The GC-MS results for heavy oil indicated that majority of the compounds were phenolic in nature. SEM and FTIR results confirmed the presence of oxygen containing function groups on hydrochar surface. The gas was mainly composed of CO2, CH4, C2H6, C2H4, C3H6, C4H8, C4H6, C5H12, C6H14, and C6H12.
机译：在这项工作中，从北艾伯塔省农场获得的玉米秸秆的水热液化（HTL）在250,300,350和375摄氏度，初始压力（PI）的不同温度下，初始压力（PI）和保留时间（T （R））0,15,30和60分钟。在惰性N-2条件下，在250ml高压釜反应器中在250ml高压釜反应器中进行所有实验，并在30mL玉米秸秆和30ml去离子水（相应的饲料中为1：6）。在300摄氏度，最终压力（P-F）为2200psi和0分钟保留时间的最高产率。在350℃，P-F的350℃，T（R）为15分钟的350℃，p-F的最高收率。基于元素分析和能量计算，最高碳含量和重油的更高的加热值为76.32wt％和35.13mJ / kg，375℃，p-F，600psi，T（r）为15分钟;对于氢淀粉，在350℃，P-F的350℃，P-F的350℃，T（r）为15分钟，为68.23wt％和24.7mJ / kg。重油的GC-MS结果表明大多数化合物本质上是酚类。 SEM和FTIR结果证实存在含氧含氧功能基团的含水碳。气体主要由CO 2，CH 4，C 2 H 6，C 2 H 4，C 3 H 6，C 4 H 8，C4H6，C5H12，C6H14和C6H12组成。

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