Hydrothermal liquefaction of the brown macro-alga Laminaria Saccharina: Effect of reaction conditions on product distribution and composition

被引:386
作者
Anastasakis, K. [1 ]
Ross, A. B. [1 ]
机构
[1] Univ Leeds, Sch Proc Environm & Mat Engn, Energy & Resources Res Inst, Leeds LS2 9JT, W Yorkshire, England
基金
英国工程与自然科学研究理事会;
关键词
Liquefaction; Macro-algae; Seaweed; Bio-crude; Bio-refinery; HOT-COMPRESSED WATER; LIQUID FUEL; BIO-OIL; SEAWEED; CONVERSION; MICROALGAE; BIOMASS; PYROLYSIS; BEHAVIOR; ALKALI;
D O I
10.1016/j.biortech.2011.01.031
中图分类号
S2 [农业工程];
学科分类号
0828 ;
摘要
The brown macro-alga Laminaria saccharina was converted into bio-crude by hydrothermal liquefaction in a batch reactor. The influence of reactor loading, residence time, temperature and catalyst (KOH) loading was assessed. A maximum bio-crude yield of 19.3 wt% was obtained with a 1:10 biomass:water ratio at 350 degrees C and a residence time of 15 min without the presence of the catalyst. The bio-crude had an HHV of 36.5 MJ/kg and is similar in nature to a heavy crude oil or bitumen. The solid residue has high ash content and contains a large proportion of calcium and magnesium. The aqueous phase is rich in sugars and ammonium and contains a large proportion of potassium and sodium. (C) 2011 Elsevier Ltd. All rights reserved.
引用
收藏
页码:4876 / 4883
页数:8
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