Life cycle assessment of the integrated generation of solid fuel and biogas from biomass (IFBB) in comparison to different energy recovery, animal-based and non-refining management systems

被引:45
|
作者
Buehle, Lutz [1 ]
Hensgen, Frank [1 ]
Donnison, Iain [2 ]
Heinsoo, Katrin [3 ]
Wachendorf, Michael [1 ]
机构
[1] Univ Kassel, Dept Grassland Sci & Renewable Plant Resources, D-37213 Witzenhausen, Germany
[2] Aberystwyth Univ, Inst Biol Environm & Rural Sci, Aberystwyth SY23 3EB, Dyfed, Wales
[3] Estonian Univ Life Sci, Inst Agr & Environm Sci, EE-51014 Tartu, Estonia
基金
英国生物技术与生命科学研究理事会;
关键词
Bioenergy; IFBB; Life cycle assessment; Semi-natural grassland; Solid fuel; GREENHOUSE-GAS BALANCE; GRASSLAND; STATE; SOILS;
D O I
10.1016/j.biortech.2012.02.072
中图分类号
S2 [农业工程];
学科分类号
0828 ;
摘要
The study compares energy production from semi-natural grasslands by the integrated generation of solid fuel and biogas from biomass (IFBB) through mechanical separation of the biomass with the dry fermentation (DF) and hay combustion system (HC). In addition, traditional use for beef cattle production and non-refining systems of landscape conservation, i.e. mulching and composting, are considered. Highest conversion efficiency (45-54% of the gross yield), net savings of fossil fuels (44-54 GJ ha(-1)) and net savings of greenhouse gases (2.9-3.7 t CO2-eq ha(-1)) are obtained by HC and IFBB. Potentials of DF are limited due to low digestibility of the mature biomass. (C) 2012 Elsevier Ltd. All rights reserved.
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页码:230 / 239
页数:10
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