A parametric study on supercritical water gasification of Laminaria hyperborea: A carbohydrate-rich macroalga

被引：42

作者：

Cherad, Ramzi ^{[1
]}

Onwudili, Jude A. ^{[1
]}

Williams, Paul T. ^{[1
]}

Ross, Andrew B. ^{[1
]}

机构：

[1] Univ Leeds, Energy Res Inst, Leeds LS2 9JT, W Yorkshire, England

来源：

BIORESOURCE TECHNOLOGY | 2014年 / 169卷

基金：

英国工程与自然科学研究理事会;

关键词：

Hydrothermal gasification; Macroalgae; Syngas; Algae biorefinery; CATALYTIC HYDROTHERMAL GASIFICATION; HYDROGEN-PRODUCTION; BIOETHANOL PRODUCTION; BIOMASS; LIQUEFACTION; SEAWEED; FERMENTATION; OPERATION; REACTOR;

D O I：

10.1016/j.biortech.2014.07.046

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

The potential of supercritical water gasification (SCWG) of macroalgae for hydrogen and methane production has been investigated in view of the growing interest in a future macroalgae biorefinery concept. The compositions of syngas from the catalytic SCWG of Laminaria hyperborea under varying parameters including catalyst loading, feed concentration, hold time and temperature have been investigated. Their effects on gas yields, gasification efficiency and energy recovery are presented. Results show that the carbon gasification efficiencies increased with reaction temperature, reaction hold time and catalyst loading but decreased with increasing feed concentrations. In addition, the selectivity towards hydrogen and/or methane production from the SCWG tests could be controlled by the combination of catalysts and varying reaction conditions. For instance, Ru/Al2O3 gave highest carbon conversion and highest methane yield of up to 11 mol/kg, whilst NaOH produced highest hydrogen yield of nearly 30 mol/kg under certain gasification conditions. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：573 / 580

页数：8

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