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A bioüzemanyag-gyártás nemzetközi összefüggései AgEcon
Popp, Jozsef.
A dráguló olajár „felszínre hozta” a fosszilis energiahordozók környezetbarát energiahordozókkal való kiváltásának problémáját. Az olajkészletek korlátozottsága mellett a bizonytalan kitermelés és a folyamatosan növekvő árak a bioüzemanyagok felé irányítják a politikai döntéshozók és a befektetők figyelmét. Az olajimportőr országoknak a bioüzemanyag-gyártás nyersanyagainak hazai termelése lehetővé teszi importköltségeik visszafogását, az üvegházhatást okozó gázok kibocsátásának csökkentését, valamint a mezőgazdasági termelők jövedelem-színvonalának javítását. A bioüzemanyagok elterjedése ugyanakkor enyhíti a kapacitása határán dolgozó olajfinomító ipar üzemanyag-ellátási terheit is, ami jelentős mértékben hozzájárul(t) az üzemanyagárak emelkedéséhez. Ma...
Tipo: Journal Article Palavras-chave: Bioüzemanyag; Közlekedés; Környezetvédelem; Energiaellátás; Élelmiszer-termelés; Biofuel; Transportation; Environment; Energy supply; Food production; Agricultural and Food Policy; Land Economics/Use.
Ano: 2007 URL: http://purl.umn.edu/57723
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A Theory of Dynamic Biofuel Tax Credit AgEcon
Ye, Fanglin; Lu, Liang; Du, Xiaoxue.
In this paper, we set up a social cost minimization problem for a government. Using dynamic optimization tools, we analytically shows how exogenous parameters could affect the optimal social cost and the optimal tax credit policy path.
Tipo: Presentation Palavras-chave: Optimal Control; Biofuel; Tax Credit; Environmental Economics and Policy; Resource /Energy Economics and Policy; Q42; Q48.
Ano: 2012 URL: http://purl.umn.edu/123750
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Abschätzung der Wertschöpfungspotenziale im ländlichen Raum durch Biokraftstoffe am Beispiel Nordrhein-Westfalens AgEcon
Breuer, Thomas; Holm-Muller, Karin.
To enhance the use of biofuels is stated priority of EU and German energy policy. Reasons given for this priority inter alia include positive income effects for the rural areas. This paper uses the example of North Rhine-Westphalia to investigate rural areas’ possibilities to profit from the added value of bio fuel production. It is shown that the main channel of income generation is based on stabilized demand for agricultural products. Taking into account recent policy shifts in Germany there remain few chances to participate in the added value of downstream production steps. In addition, due to considerable support for biogas plants maize production considerably reduces areas consecrated to bio fuel production.
Tipo: Journal Article Palavras-chave: Biofuel; Development of rural areas; Income effects; Resource /Energy Economics and Policy; Community/Rural/Urban Development.
Ano: 2007 URL: http://purl.umn.edu/96752
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Alcohol production from sweet potato (Ipomoea batatas (L.) Lam.) genotypes in fermentative medium Acta Agron. (Palmira)
Cantos-Lopes,Amanda; Vilela-de Resende,Juliano Tadeu; Machado,José; Perez-Guerra,Edson; Vilela-Resende,Nathalia.
Abstract Ethanol is one of the most promising fuels in Brazil, but its production is centralized in sugarcane cultivation, and is currently in search for other sources alcohol producing biomass to replace sugarcane monoculture. The aim of this study was to study fermentation process variables such as fermentation time (72 and 96 hours), addition of nutrients (with and without addition) and yeasts (dry and fresh organic yeast), employed in ethanol production from two sweet potato (Ipomoea batatas (L.) Lam.) genotypes: UGA 05 and UGA 77. Alcohol evaluation content in °GL was performed in a completely randomized design according to two factorial schemes (22 and 23), and results obtained were analyzed using Design Expert® software version 8. Results of the...
Tipo: Journal article Palavras-chave: Biofuel; Ethanol production; Fermentation; Saccharification; Starch; Water content.
Ano: 2018 URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-28122018000200231
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ANÁLISE DA SUSTENTABILIDADE DA PRODUÇÃO DE BIODIESEL NO BRASIL AgEcon
Santos Junior, Silvio; Dias, Marcelo Fernandes Pacheco; Mendonca, Erica Silva; Rosa, Nadir Paula Da; Silva, Tania Nunes da.
Muitos compostos químicos são encontrados na atmosfera terrestre atuando como “gases de efeito estufa”. Eles são importantes uma vez que impedem a reflexão total dos raios solares, Entretanto, os níveis de alguns desses gases, principalmente o gás carbônico (CO2), vem aumentando a uma taxa de 25% desde o processo de industrialização em larga escala, iniciado a 150 anos atrás. Nos últimos 20 anos o CO2 vem correspondendo a 84% dos gases provenientes das atividades humanas, e, 82% dele é resultante da queima de combustíveis fósseis. Considerando que o aumento da população e o surgimento de novas tecnologias continuam demandando energia de forma incremental, é imperativo a busca de soluções energéticas alternativas, mais sustentáveis. Neste contexto, a...
Tipo: Conference Paper or Presentation Palavras-chave: Biocombustível; Sustentabilidade; Recursos naturais; Soja; Biofuel; Sustainability; Natural Resources; Soybeans; Environmental Economics and Policy.
Ano: 2008 URL: http://purl.umn.edu/109812
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Análise temporal de municípios produtores de cana-de-açúcar no estado de São Paulo por meio de agrupamento do NDVI (AVHRR/NOAA) e dados de produtividade e área. Repositório Alice
GONÇALVES, R. R. do V.; ROMANI, L. A. S.; ZULLO JUNIOR, J.; ÁVILA, A. M. H. de; TRAINA, A. J. M..
O objetivo deste trabalho foi detectar municípios produtores de cana-de-açúcar no estado de São Paulo, similares, pelo método de agrupamento, analisando variáveis espectrais (NDVI), área plantada e produtividade no período de 2001 a 2009. O resultado dessa análise exploratória dos dados mostrou que a técnica é apropriada para a determinação de grupos de municípios com características semelhantes o que permite classificar as regiões automaticamente.
Tipo: Artigo em anais de congresso (ALICE) Palavras-chave: Sensoriamento remoto; K-médias; Biocombustível; Agrupamento dos dados; Clusterização; Remote sensing; K-means; Biofuel; Cluster analysis.
Ano: 2011 URL: http://www.alice.cnptia.embrapa.br/handle/doc/895473
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Analyzing Drivers of World Food Prices: Weather, Growth, and Biofuels AgEcon
Saunders, Caroline M.; Kaye-Blake, William; Cagatay, Selim.
The recent rise of food cost in world markets has accelerated the research examining the underlying factors for this rise. The present research investigated the separate and combined impacts of three factors thought to contribute to the price rise: adverse weather events, strong and sustained growth in high populated countries, and increased biofuels production. The research further analysed the effects of these price rises on consumption expenditures in Brazil, China and India. Analyses were carried out using a partial equilibrium trade model with a focus on the 2004 to 2007 period. The modelling suggests that the most important factor behind the price rise depends on the commodity, with maize/corn, oilseeds, and sugar most affected by biofuels, while...
Tipo: Conference Paper or Presentation Palavras-chave: Food prices; Partial equilibrium model; Biofuel; Agricultural and Food Policy; International Relations/Trade; F11; Q17.
Ano: 2009 URL: http://purl.umn.edu/51460
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Assessment of social and environmental impacts of canola on the biodiesel production chain in southern Brazil. Repositório Alice
RAMOS, N. P.; BUSCHINELLI, C. C. de A.; TOMM, G. O.; FERREIRA, P. E. P.; VIEIRA, H. B.; FONTES, L. P.; RODRIGUES, I. A.; RODRIGUES, G. S..
Abstract: This research aimed to assess the social and environmental impacts of canola on the biodiesel production chain, as well as to analyze sustainability indicators in a reference term were canola is produced in the Passo Fundo region, state of Rio Grande do Sul, Brazil. Methodology included extensive literature review and application of two impact assessment tools: a) an Eco·certification system for rural activities (Eco·certRural) with 24 criteria for evaluating production chain impacts, based on lhe input of 15 experts knowledgeable on the diverse segments of the biodiesel chain in the region of the study, and b) a System for weighted environmental impact assessment of rural activities (APOIA-NovoRural) with 62 indicators based on detailed...
Tipo: Artigo em anais de congresso (ALICE) Palavras-chave: Biofuel; Impact assessment; Sustainability indicators; APOIA-NovoRural; Biocombustível; Colza; Impacto ambiental; Impacto social; Biodiesel; Canola; Environmental assessment.
Ano: 2011 URL: http://www.alice.cnptia.embrapa.br/handle/doc/918041
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Assessment of social and environmental impacts of canola on the biodiesel production chain in southern Brazil. Repositório Alice
RAMOS, N. P.; BUSCHINELLI, C. C. de A.; TOMM, G. O.; FERREIRA, P. E. P.; VIEIRA, H. B.; FONTES, L. P.; RODRIGUES, I. A.; RODRIGUES, G. S..
This research aimed to assess the social and environmental impacts of canola on the biodiesel production chain, as well as to analyze sustainability indicators in a reference term were canola is produced in the Passo Fundo region, state of Rio Grande do Sul, Brazil. Methodology included extensive literature review and application of two impact assessment tools: a) an Eco·certification system for rural activities (Eco·certRural) with 24 criteria for evaluating production chain impacts, based on the input of 15 experts knowledgeable on the diverse segments of the biodiesel chain in the region of the study, and b) a System for weighted environmental impact assessment of rural activities (APOIA-NovoRural) with 62 indicators based on detailed interview and...
Tipo: Artigo em anais de congresso (ALICE) Palavras-chave: Biofuel; Colza.
Ano: 2011 URL: http://www.alice.cnptia.embrapa.br/handle/doc/895042
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Atributos biométricos e teor de extrato etéreo de acessos de pequi (Caryocar spp.) como potencial fonte de biocombustível. Infoteca-e
DUBOC, E.; FRANÇA, L. V. de; FRANZON, R. C.; VIEIRA, E. A.; JUNQUEIRA, N. T. V..
2013
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E) Palavras-chave: Pequi; Fruta tropical; Teor de gordura; Melhoramento; Biocombustível; Pequis; Improvement; Tropical fruit; Percentage; Fat; Biofuel.
Ano: 2013 URL: http://www.infoteca.cnptia.embrapa.br/handle/doc/979083
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Biochemical and molecular analysis of a sorghum bioenergy panel for lignin content variation. Repositório Alice
DAMASCENO, C. M. B.; PARRELLA, R. A. da C.; SIMEONE, M. L. F.; SCHAFFERT, R. E.; MAGALHAES, J. V. de.
2010
Tipo: Resumo em anais de congresso (ALICE) Palavras-chave: Sorghum; Biofuel; Lignin; Sorgo; Bioenergia.
Ano: 2010 URL: http://www.alice.cnptia.embrapa.br/handle/doc/854996
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Biodiesel e segurança alimentar. Infoteca-e
KINPARA, D. I.; ROCHA, M. G. da.
2008
Tipo: Artigo de divulgação na mídia (INFOTECA-E) Palavras-chave: Biocombustível; Segurança alimentar; Biofuel; Food security.
Ano: 2008 URL: http://www.infoteca.cnptia.embrapa.br/handle/doc/571748
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Bioethanol from Microalgal Biomass: A Promising Approach in Biorefinery BABT
Silva,Carlos Eduardo de Farias; Bertucco,Alberto.
Abstract The development of new technologies which increase the production of biofuel without directly compete with food production is required. Microalgal biomass has recently been in the highlight. The role of this biomass is here discussed within the concept of biorefinery and industrial sustainability of bioethanol production. The process of cultivation in order to accumulate around 50% of carbohydrates in the biomass (dry weight) and the importance of water and nutrient recycling are reviewed. Saccharification of biomass using enzymes or acids and alternative processes such as hydrothermal liquefaction and flash hydrolysis are addressed. Since the main monosaccharide in microalgal biomass is glucose, high rates of hydrolysis and fermentation were,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Ethanol; Microalgae; Biofuel; Hydrolysis; Nutrient recycle.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132019000100602
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Biofuel Economics in a Setting of Multiple Objectives & Unintended Consequences AgEcon
Jaeger, William K.; Egelkraut, Thorsten M..
This paper examines biofuels from an economic perspective and evaluates the merits of promoting biofuel production in the context of the policies’ multiple objectives, life-cycle implications, pecuniary externalities, and other unintended consequences. The policy goals most often cited are to reduce fossil fuel use and to lower greenhouse gas emissions. But the presence of multiple objectives and various indirect effects complicates normative evaluation. To address some of these complicating factors, we look at several combinations of policy alternatives that achieve the same set of incremental gains along the two primary targeted policy dimensions, making it possible to compare the costs and cost-effectiveness of each combination of policies. For example,...
Tipo: Working or Discussion Paper Palavras-chave: Biofuel; Biodiesel; Cost-Effectiveness; Indirect Land Use Change Effects; Net Energy; Multiple Objectives; Ethanol; Ghg; Resource /Energy Economics and Policy; Q42; Q48; Q54.
Ano: 2011 URL: http://purl.umn.edu/108203
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Biofuels: Potential Production Capacity, Effects on Grain and Livestock Sectors, and Implications for Food Prices and Consumers AgEcon
Hayes, Dermot J.; Babcock, Bruce A.; Fabiosa, Jacinto F.; Tokgoz, Simla; Elobeid, Amani E.; Yu, Tun-Hsiang (Edward); Dong, Fengxia; Hart, Chad E.; Chavez, Eddie C.; Pan, Suwen; Carriquiry, Miguel A.; Dumortier, Jerome.
We examined four evolution paths of the biofuel sector using a partial equilibrium world agricultural sector model in CARD that includes the new RFS in the 2007 EISA, a two-way relationship between fossil energy and biofuel markets, and a new trend toward corn oil extraction in ethanol plants. At one extreme, one scenario eliminates all support to the biofuel sector when the energy price is low, while the other extreme assumes no distribution bottleneck in ethanol demand growth when the energy price is high. The third scenario considers a pure market force driving ethanol demand growth because of the high energy price, while the last is a policy-induced shock with removal of the biofuel tax credit when the energy price is high. Standard results hold where...
Tipo: Journal Article Palavras-chave: Biofuel; EISA; Ethanol; Tax credit; World agricultural sector model; Agribusiness; Consumer/Household Economics; Crop Production/Industries; Demand and Price Analysis; International Relations/Trade; Livestock Production/Industries; Political Economy; Production Economics; Resource /Energy Economics and Policy; Q13; Q18; Q38.
Ano: 2009 URL: http://purl.umn.edu/53093
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Breaking into the Cellulosic Ethanol Market: Capacity and Storage Strategies AgEcon
Darby, Paul M.; Mark, Tyler B.; Salassi, Michael E..
This paper examines the possibilities of breaking into the cellulosic ethanol market in south Louisiana via strategic feedstock choices and the leveraging of the area’s competitive advantages. A small plant strategy is devised whereby the first-mover problem might be solved, and several scenarios are tested using Net Present Value analysis.
Tipo: Conference Paper or Presentation Palavras-chave: Cellulosic ethanol; Sugarcane; Energy cane; Sweet sorghum; Bagasse; Ethanol; Biofuel; Bioethanol; Agribusiness; Agricultural Finance; Crop Production/Industries; Production Economics; Research and Development/Tech Change/Emerging Technologies; Resource /Energy Economics and Policy.
Ano: 2010 URL: http://purl.umn.edu/56542
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Bud development, flowering and fruit set of Moringa oleifera Lam. (Horseradish Tree) as affected by various irrigation levels JARTS
Muhl, Quintin Ernst; du Toit, Elsa S.; Steyn, Joachim Martin; Apostolides, Zeno.
Moringa oleifera is becoming increasingly popular as an industrial crop due to its multitude of useful attributes as water purifier, nutritional supplement and biofuel feedstock. Given its tolerance to sub-optimal growing conditions, most of the current and anticipated cultivation areas are in medium to low rainfall areas. This study aimed to assess the effect of various irrigation levels on floral initiation, flowering and fruit set. Three treatments namely, a 900 mm (900IT), 600 mm (600IT) and 300 mm (300IT) per annum irrigation treatment were administered through drip irrigation, simulating three total annual rainfall amounts. Individual inflorescences from each treatment were tagged during floral initiation and monitored throughout until fruit set....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Horticulture; Agronomy; Plant Science floral initiation; Pollen viability; Pollen tube growth; Biofuel; Miracle tree; Moringa oleifera.
Ano: 2014 URL: http://www.jarts.info/index.php/jarts/article/view/2013081343310
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Carbon Abatement in the Fuel Market with Biofuels: Implications for Second-Best Policies AgEcon
Crago, Christine Lasco; Khanna, Madhu.
A carbon tax would penalize carbon intensive fuels like gasoline and shift fuel consumption to less carbon intensive alternatives like biofuels. Since biofuel production competes for land with agriculture, a carbon tax could raise land rents, divert land towards fuel production, and raise agricultural prices. This paper analyzes the welfare effect of a carbon tax on fuel with gasoline and biofuel as available fuel choices, in the presence of a labor tax and biofuel subsidy. The second-best optimal carbon tax is also quantified. Findings show that when biofuels is part of the fuel mix, the carbon tax has a commodity price effect which arises from tax-induced changes in land rent. The commodity price effect could exacerbate or attenuate the tax interaction...
Tipo: Conference Paper or Presentation Palavras-chave: Carbon tax; Optimal fuel tax; Biofuel; Environmental Economics and Policy; Q42; Q48; Q54; H23.
Ano: 2010 URL: http://purl.umn.edu/60894
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Cassava processing wastewater as a platform for third generation biodiesel production Scientia Agricola
Neves,Cristina; Maroneze,Mariana Manzoni; Santos,Aline Meireles dos; Francisco,Erika Cristina; Wagner,Roger; Zepka,Leila Queiroz; Jacob-Lopes,Eduardo.
ABSTRACT This study aimed to evaluate third generation biodiesel production by microalgae Phormidium autumnale using cassava processing wastewater as a platform. Experiments were performed in a heterotrophic bubble column bioreactor. The study focused on the evaluation of the bioreactor (batch and fed-batch) of different operational modes and the analysis of biofuel quality. Results indicate that fed-batch cultivations improved system performance, elevating biomass and oil productions to 12.0 g L−1 and 1.19 g L−1, respectively. The composition of this oil is predominantly saturated (60 %) and monounsaturated (39 %), resulting in a biodiesel that complys with U.S., European and Brazilian standards. The technological route developed indicates potential for...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Microalgae; Cyanobacteria; Agroindustrial wastewater; Biofuel.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162016000500412
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Causes and countermeasures for the food crisis in developing countries AgEcon
Lu, Yu-si; Huang, Wen-an.
We analyze the causes of food crisis in developing countries according to the global food crisis at present. Finally, we put forward some relevant policy suggestions for coping with the food crisis.
Tipo: Thesis or Dissertation Palavras-chave: Food crisis; Contradiction between human and land; Biofuel; China; Agricultural and Food Policy; Food Consumption/Nutrition/Food Safety; Food Security and Poverty.
Ano: 2009 URL: http://purl.umn.edu/53434
Registros recuperados: 106
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