A LCA (life cycle assessment) of the methanol production from sugarcane bagasse
A LCA (life cycle assessment) of the methanol production from sugarcane bagasse
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DOI：
10.1016/j.energy.2010.12.010
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发表时间：
2011-06
期刊：
影响因子：
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通讯作者：
M. Renó;E. Lora;J. Palácio;O. Venturini;J. Buchgeister;O. Almazán
中科院分区：
文献类型：
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作者：
M. Renó;E. Lora;J. Palácio;O. Venturini;J. Buchgeister;O. Almazán
如今，最重要的环境问题之一是工业和运输部门的污染行动导致温室效应呈指数级增加。生产生物燃料被认为是缓解污染、促进农村发展的一个可行的替代方案。这项工作分析了甘蔗渣生产甲醇的环境影响，考虑到能源生命周期及其净环境影响的平衡，这两者都包括在生命周期评估(LCA)方法中。该评价是以一个10万吨/年的甘蔗渣为原料的甲醇厂为例进行的。甲醇是通过BTL(生物质转化为液体)路线生产的。将环境影响的结果与其他生物燃料的生命周期评价研究进行了比较，结果表明，即使是相同的原料，现有的生物燃料生产系统的环境性能也存在显著差异。这种差异取决于许多因素，如耕作方式、生物质转化技术等。从产量/投入比的结果来看，用蔗渣生产甲醇是一种可行的方法，可以替代从天然气中提取的部分化石甲醇。
Nowadays one of the most important environmental issues is the exponential increase of the greenhouse effect by the polluting action of the industrial and transport sectors. The production of biofuels is considered a viable alternative for the pollution mitigation but also to promote rural development. The work presents an analysis of the environmental impacts of the methanol production from sugarcane bagasse, taking into consideration the balance of the energy life cycle and its net environmental impacts, both are included in a LCA (Life Cycle Assessment) approach. The evaluation is done as a case study of a 100,000 t/y methanol plant, using sugarcane bagasse as raw material. The methanol is produced through the BTL (Biomass to Liquid) route. The results of the environmental impacts were compared to others LCA studies of biofuel and it was showed that there are significant differences of environmental performance among the existing biofuel production system, even for the same feedstock. The differences are dependent on many factors such as farming practices, technology of the biomass conversion. With relation to the result of output/input ratio, the methanol production from sugarcane bagasse showed to be a feasible alternative for the substitution of an amount of fossil methanol obtained from natural gas.