Seasonal variation in the chemical composition of the bioenergy feedstock Laminaria digitata for thermochemical conversion
Seasonal variation in the chemical composition of the bioenergy feedstock Laminaria digitata for thermochemical conversion
复制标题
DOI：
10.1016/j.biortech.2010.06.152
复制
发表时间：
2011-01-01
影响因子：
11.4
通讯作者：
Donnison, I. S.
中科院分区：
文献类型：
--
作者：
Adams, J. M. M.;Ross, A. B.;Donnison, I. S.
为了避免对粮食生产的负面影响，需要确定和利用新型非粮食生物燃料原料。一种选择是利用海洋生物质，特别是快速生长的大型海洋“植物”，如大型海藻。本文报道了新技术测定的海带在整个生长周期中成分的变化。海带作为生物燃料生产原料的潜力和未来生物精炼的可能性通过工业分析和最终分析，使用热重分析（TGA）的初始热解速率，金属含量和热解气相色谱质谱法进行评估。3月份收获的样品含有最低比例的碳水化合物和最高的灰分和碱金属含量，而7月份收获的样品含有最高比例的碳水化合物，最低的碱金属和灰分含量。因此，7月被认为是收获海带生物质进行热化学转化为生物燃料的最合适月份。(C)2010爱思唯尔有限公司保留所有权利。
To avoid negative impacts on food production, novel non-food biofuel feedstocks need to be identified and utilised. One option is to utilise marine biomass, notably fast-growing, large marine 'plants' such as the macroalgal kelps. This paper reports on the changing composition of Laminaria digitata throughout it growth cycle as determined by new technologies. The potential of Laminaria sp. as a feedstock for biofuel production and future biorefining possibilities was assessed through proximate and ultimate analysis, initial pyrolysis rates using thermo-gravimetric analysis (TGA), metals content and pyrolysis gas chromatography mass spectrometry.Samples harvested in March contained the lowest proportion of carbohydrate and the highest ash and alkali metal content, whereas samples harvested in July contained the highest proportions of carbohydrate, lowest alkali metals and ash content. July was therefore considered the most suitable month for harvesting kelp biomass for thermochemical conversion to biofuels. (C) 2010 Elsevier Ltd. All rights reserved.