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Registros recuperados: 11
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Process design and sustainability in the production of bioethanol from lignocellulosic materials Electron. J. Biotechnol.
Scott,Felipe; Quintero,Julián; Morales,Marjorie; Conejeros,Raúl; Cardona,Carlos; Aroca,Germán.
Background: Bioethanol is produced mainly from sugar cane and corn. In the last years it has been subject of debate due to the effects in food prices and land use change. The use of lignocellulosic materials for bioethanol production, such as agroindustry, forestry and municipal residues, wood or dendroenergetic species, has been proposed as a sustainable way for producing this biofuel. The design of a sustainable process for producing bioethanol requires a methodological approach whereby economical, environmental and social criteria are systematically integrated from the early stages of process design. Results: Until now a methodology for guiding the design of a sustainable process for bioethanol production is not available, and there are just a few...
Tipo: Journal article Palavras-chave: Bioethanol; Life cycle analysis; Lignocelluloses; Sustainability.
Ano: 2013 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582013000300013
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Analyse du cycle de vie d’un biocomposite ArchiMer
Le Duigou, A.; Davies, Peter; Baley, C..
In addition to the impact on climate change resulting from the use of non renewable resources [1], the depletion of existing fossil fuel sources is inevitable. A major change of strategy is required. This article presents an analysis of a Flax fibre/PLLA biocomposite life cycle compared to common glass fibre reinforced polyester composites from manufacturing to mechanical design and end-of-life. Environmental impacts have been assessed by Standardized method called Life Cycle Analysis (ISO 14044). Flax fibre/PLLA biocomposites manufactured by film stacking have, for similar mass, tensile modulus close to that of Glass/Polyester. Besides being compostable at end of life, biocomposites have been proved to be recyclable which makes it possible to keep the...
Tipo: Text Palavras-chave: Biocomposites; Fibres végétales; Recyclage; Analyse de cycle de vie; Biocomposites; Vegetal fibres; Recycling; Life cycle analysis.
Ano: 2010 URL: https://archimer.ifremer.fr/doc/00480/59149/61778.pdf
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Greenhouse Gas Impacts of Ethanol from Iowa Corn: Life Cycle Analysis versus System-wide Accounting AgEcon
Feng, Hongli; Rubin, Ofir D.; Babcock, Bruce A..
Life cycle analysis (LCA) is the standard approach used to evaluate the greenhouse gas (GHG) benefits of biofuels. However, it is increasingly recognized that LCA results do not account for some impacts including land use changes that have important implications on GHGs. Thus, an alternative accounting system that goes beyond LCA is needed. In this paper, we contribute to the literature by laying out the basics of a system-wide accounting (SWA) method that takes into account all potential changes in GHGs resulting from biofuel expansion. We applied both LCA and SWA to assess the GHG impacts of ethanol based on Iowa corn. Growing corn in rotation with soybeans generated 35% less GHG emissions than growing corn after corn. Based on average corn production,...
Tipo: Conference Paper or Presentation Palavras-chave: Biofuels; Corn ethanol; Greenhouse gas; Life cycle analysis; System-wide accounting; Research Methods/ Statistical Methods; Resource /Energy Economics and Policy.
Ano: 2008 URL: http://purl.umn.edu/6503
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Biofuel policies and the environment: the effects of biofuel feedstock production on climate, water quality and biodiversity AgEcon
Lankoski, Jussi E.; Ollikainen, Markku.
In this paper we examine the multiple environmental effects of policies promoting biofuel production from agricultural crops. We develop theoretical and empirical frameworks and provide an integrated economic and ecological modelling approach: an economic model of farmers’ decision making is combined with a biophysical model predicting the effects of farming practices on crop yields and multiple environmental effects. The analysed environmental effects include GHG emissions over the life cycle, nitrogen and phosphorus runoff, herbicide runoff and the quality of wildlife habitats. Model is applied to crop production in Finland. We found that the overall environmental performance of alternative land use types is mainly driven by the value of CO2-eq emissions...
Tipo: Conference Paper or Presentation Palavras-chave: Life cycle analysis; Nutrient runoff; Herbicide runoff; Greenhouse gas emissions; Agricultural and Food Policy; Crop Production/Industries; Environmental Economics and Policy; Land Economics/Use; Public Economics.
Ano: 2009 URL: http://purl.umn.edu/51677
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Trade Policy Implications of Carbon Labels on Food AgEcon
Baddeley, Shane; Cheng, Peter; Wolfe, Robert.
Carbon labels providing information about the carbon footprints associated with food products might influence consumer purchases, which would have a differential effect on producers throughout global food chains. We first discuss why any labels work and then describe the mechanics of carbon labels. The novelty of the paper is an examination of the issues members of the WTO have raised about all types of labels since 1995. Although carbon labels are voluntary standards for now, their increasing use could become effectively mandatory. Difficulties for exporters will include the lack of an international standard and the challenge, especially for developing country exporters, of dealing with complex carbon footprint procedures.
Tipo: Article Palavras-chave: Carbon footprint; Labels; Life cycle analysis; Technical Barriers to Trade; Voluntary standards; World Trade Organization; Demand and Price Analysis; Environmental Economics and Policy; Financial Economics; Institutional and Behavioral Economics; International Relations/Trade; Marketing; Political Economy.
Ano: 2012 URL: http://purl.umn.edu/121942
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Funding Agricultural Carbon Offset Abatements with Carbon Tax Revenue to Reduce Net Greenhouse Gas Emissions AgEcon
Popp, Michael P.; Nalley, Lawton Lanier.
Tipo: Conference Paper or Presentation Palavras-chave: Net greenhouse gas emissions; Life cycle analysis; Carbon offset; Carbon tax; Environmental Economics and Policy; Farm Management.
Ano: 2011 URL: http://purl.umn.edu/103686
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GHG Trading Framework for the U.S. Biofuels Sector AgEcon
Kumarappan, Subbu; Joshi, Satish V..
Substitution of petroleum fuels with biofuels such as ethanol and biodiesel has been shown to reduce greenhouse gas (GHG) emissions. These GHG reductions can be traded in the emerging carbon markets, and methodologies for quantifying and trading are still being developed. The main challenges in developing such GHG trading framework are analyzed. An outline of such a framework is presented that depends on the life cycle assessment of GHG reductions, along with a combination of project specific and regional standard performance measures. The advantages of assigning GHG property and trading rights to biofuel producers are discussed. At carbon prices of $10 per metric ton, estimated additional revenues to biofuel producers range from $ 17 to 64 million dollars...
Tipo: Conference Paper or Presentation Palavras-chave: Biofuels; Ethanol; Biodiesel; Carbon trading; GHG emissions trading; Methodology; CCX; CDM; Maize; Lignocellulosics; Well to wheel; Life cycle analysis; Environmental Economics and Policy; Q42; D23; D4.
Ano: 2008 URL: http://purl.umn.edu/54530
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The Trade-off Between Bioenergy and Emissions When Land Is Scarce AgEcon
Kauffman, Nathan S.; Hayes, Dermot J..
Agricultural biofuels require the use of scarce land, and this land has opportunity cost. We explore the objective function of a social planner who includes a land constraint in the optimization decision to minimize environmental cost. The results show that emissions should be measured on a per acre basis. Conventional agricultural life cycle assessments for biofuels report carbon emissions on a per gallon basis, thereby ignoring the implications of land scarcity and implicitly assuming an infinite supply of the inputs needed for production. Switchgrass and corn are then modeled as competing alternatives to show how the inclusion of a land constraint can influence life cycle rankings and alter policy conclusions.
Tipo: Conference Paper or Presentation Palavras-chave: Biofuels; Biomass; Energy policy; Land use; Life cycle analysis; Agricultural and Food Policy; Environmental Economics and Policy; Q16; Q48; Q58.
Ano: 2011 URL: http://purl.umn.edu/103246
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Greenhouse Gas Impacts of Ethanol from Iowa Corn: Life Cycle Analysis versus System-wide Accounting AgEcon
Feng, Hongli; Rubin, Ofir D.; Babcock, Bruce A..
Life cycle analysis (LCA) is the standard approach used to evaluate the greenhouse gas (GHG) benefits of biofuels. However, it is increasingly recognized that LCA results do not account for some impacts—including land use changes—that have important implications on GHGs. Thus, an alternative accounting system that goes beyond LCA is needed. In this paper, we contribute to the literature by laying out the basics of a system-wide accounting (SWA) method that takes into account all potential changes in GHGs resulting from biofuel expansion. We applied both LCA and SWA to assess the GHG impacts of ethanol based on Iowa corn. Growing corn in rotation with soybeans generated 35% less GHG emissions than growing corn after corn. Based on average corn production,...
Tipo: Working or Discussion Paper Palavras-chave: Biofuels; Corn ethanol; Greenhouse gas; Life cycle analysis; System-wide accounting; Crop Production/Industries; Land Economics/Use; Research Methods/ Statistical Methods; Resource /Energy Economics and Policy.
Ano: 2008 URL: http://purl.umn.edu/6312
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การศึกษากระบวนการผลิตข้าวเพื่อสิ่งแวดล้อม Thai Agricultural
Sadudee Supanpai; Radi Sinpichetkorn.
business. The research system can analyst for carbon emission of rice production, logistic, quality control about finish goods via rice value chain system. Carbon Footprint Project of Rice Product is part of LCA that start point of environmental friendly rice product. Result of research, carbon emission is also the importance that the research showed rice cultivation, rice mill, rice processing, rice packing and logistic have green house gas emission 3.9, 0.305, 0.037, 0.0004 and 0.53 gCO2/kg rice.
Tipo: PhysicalObject Palavras-chave: Life cycle analysis; Carbon footprint; Environment friendly rice product; การประเมินวัฏจักรชีวิต; คาร์บอนฟุตพริ้นต์; กระบวนการผลิตข้าวที่เป็นมิตรกับสิ่งแวดล้อม.
Ano: 2012 URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5432
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Life cycle assessment of a portable assembly biogas unit used for treating food, kitchen and landscape wastes CIGR Journal
Samer, Mohamed.
The biogas unit under investigation is a specially designed portable assembly biogas unit and is sought to be widespread and commonly used in Egypt by the Egyptian Environmental Affairs Agency (EEAA). This unit is able to anaerobically treat different types of organic wastes, which are: food waste, kitchen waste, and waste from landscape. The main objective of this study is to perform an environmental impact evaluation of the implementation of this biogas unit. The specific greenhouse gas (GHG) emissions of using the produced biogas from the unit for electricity and heat generation were calculated, where the methodology of life cycle assessment (LCA) was applied. The results show the GHG emissions for each component of the biogas unit and each process...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Life cycle analysis; Biogas units; Food waste; Kitchen waste; Landscape waste; Greenhouse gases.
Ano: 2022 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/7047
Registros recuperados: 11
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