Seasonal variation in the chemical composition of the bioenergy feedstock Laminaria digitata for thermochemical conversion

TY - JOUR

T1 - Seasonal variation in the chemical composition of the bioenergy feedstock Laminaria digitata for thermochemical conversion

AU - Adams, J. M M

AU - Ross, A. B.

AU - Anastasakis, K.

AU - Hodgson, E. M.

AU - Gallagher, J. A.

AU - Jones, J. M.

AU - Donnison, I. S.

PY - 2011/1/1

Y1 - 2011/1/1

N2 - 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.

AB - 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.

KW - Algae

KW - Bio-oil

KW - Biorefinery

KW - Py-GC-MS

KW - TGA

UR - http://www.scopus.com/inward/record.url?scp=77957331300&partnerID=8YFLogxK

U2 - 10.1016/j.biortech.2010.06.152

DO - 10.1016/j.biortech.2010.06.152

M3 - Journal article

C2 - 20685112

AN - SCOPUS:77957331300

SN - 0960-8524

VL - 102

SP - 226

EP - 234

JO - Bioresource Technology

JF - Bioresource Technology

IS - 1

ER -