Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Ordenar por: RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 7
Primeira ... 1 ... Última
Imagem não selecionada

Imprime registro no formato completo
BIOFUEL PRODUCTION: IMPLICATIONS FOR GRAIN INDUSTRY AND CONSUMERS (PowerPoint Presentation) AgEcon
Shapouri, Hosein.
Tipo: Conference Paper or Presentation Palavras-chave: Resource /Energy Economics and Policy.
Ano: 2005 URL: http://purl.umn.edu/32833
Imagem não selecionada

Imprime registro no formato completo
BIOMASS FROM CROP RESIDUES: COST AND SUPPLY ESTIMATES AgEcon
Gallagher, Paul W.; Dikeman, Mark; Fritz, John; Wailes, Eric J.; Gauthier, Wayne M.; Shapouri, Hosein.
The supply of harvested crop residues as a feed stock for energy products is estimated in this report. The estimates account for economic and environmental factors governing residue supply. The supply results span major agricultural crops in four distinct cropping regions of the United States, taking into account local variation in cost-determining factors such as residue yield, geographic density of residues, and competition for livestock feed use.
Tipo: Report Palavras-chave: Crop residues; Harvested residue; Residue yield; Supply estimates; Soil quality; Cropping regions; Feedstock; Biomass technologies; Reduced tillage; Forage; Crop Production/Industries; Resource /Energy Economics and Policy.
Ano: 2003 URL: http://purl.umn.edu/34063
Imagem não selecionada

Imprime registro no formato completo
Estimating the Net Energy Balance of Corn Ethanol AgEcon
Shapouri, Hosein; Duffield, James A.; Graboski, Michael S..
Studies conducted since the late 1970's have estimated the net energy value of corn ethanol. However, variations in data and assumptions used among the studies have resulted in a wide range of estimates. This study identifies the factors causing this wide variation and develops a more consistent estimate. We conclude that the net energy value of corn ethanol has become positive in recent years due to technological advances in ethanol conversion and increased efficiency in farm production. We show that corn ethanol is energy efficient as indicated by an energy ratio of 1.24.
Tipo: Report Palavras-chave: Ethanol; Net energy balance; Corn production; Energy security; Resource /Energy Economics and Policy.
Ano: 1995 URL: http://purl.umn.edu/34005
Imagem não selecionada

Imprime registro no formato completo
The Economic Impacts of Bioenergy Crop Production on U.S. Crop Production AgEcon
Torre Ugarte, Daniel de la; Walsh, Marie E.; Shapouri, Hosein; Slinsky, Stephen P..
In response to energy security concerns, alternative energy programs such as biomass energy systems are being developed to provide energy in the 21st century. For the biomass industry to expand, a variety of feedstocks will need to be utilized. Large scale production of bioenergy crops could have significant impacts on the United States agricultural sector in terms of quantities, prices and production location of traditional crops as well as farm income. Though a number of scenarios were examined to study the impact of bioenergy crop production on the agricultural sector, two cropland scenarios are presented in this report. Under the wildlife management scenario, the analysis indicates that, at $30/dry ton (dt) for switchgrass,...
Tipo: Report Palavras-chave: Alternative crops; Bioenergy crops; Biomass; Conservation Reserve Program; Crop acreage shifts; Crop budgeting; Economic feasibility; Economic impact; Hybrid poplars; Hybrid willow; POLYSYS; Switchgrass; Crop Production/Industries; Resource /Energy Economics and Policy.
Ano: 2003 URL: http://purl.umn.edu/33997
Imagem não selecionada

Imprime registro no formato completo
The Energy Balance of Corn Ethanol: An Update AgEcon
Shapouri, Hosein; Duffield, James A.; Wang, Michael Q..
Studies conducted since the late 1970s have estimated the net energy value (NEV) of corn ethanol. However, variations in data and assumptions used among the studies have resulted in a wide range of estimates. This study identifies the factors causing this wide variation and develops a more consistent estimate. We conclude that the NEV of corn ethanol has been rising over time due to technological advances in ethanol conversion and increased efficiency in farm production. We show that corn ethanol is energy efficient as indicated by an energy output:input ratio of 1.34.
Tipo: Report Palavras-chave: Ethanol; Net energy balance; Corn production; Energy; Crop Production/Industries; Resource /Energy Economics and Policy.
Ano: 2002 URL: http://purl.umn.edu/34075
Imagem não selecionada

Imprime registro no formato completo
The Role of Information Technology in the Fuel Ethanol Industry AgEcon
Dunn, John R.; Caswell, Margriet; Crooks, Tony; Eidman, Vernon R.; Hrubovcak, James; Shapouri, Hosein; Richman, Scott; Scott, Tom.
This USDA-sponsored study uses panels of ethanol industry experts and follow up interviews with plant owners and managers to examine how information technology has impacted the structure, organization, and operations of the fuel ethanol industry. The study examined the following questions regarding the future of the ethanol industry: (1) Does the present ethanol industry represent a stable structure or a transitional step toward an inevitable concentration of ownership into the hands of a few large processing firms? (2) Have contemporary information technologies fundamentally changed the information flows, scale of operations, access to markets, conditions of vertical and horizontal coordination, sources of finance, and the competitive landscape for the...
Tipo: Conference Paper or Presentation Palavras-chave: Resource /Energy Economics and Policy.
Ano: 2005 URL: http://purl.umn.edu/31825
Imagem não selecionada

Imprime registro no formato completo
U.S. Biodiesel Development: New Markets for Conventional and Genetically Modified Agricultural Products AgEcon
Duffield, James A.; Shapouri, Hosein; Graboski, Michael S.; McCormick, Robert; Wilson, Richard.
With environmental and energy source concerns on the rise, using agricultural fats and oils as fuel in diesel engines has captured increasing attention. Substituting petroleum diesel with biodiesel may reduce air emissions, increase the domestic supply of fuel, and create new markets for farmers. U.S. agricultural fats and oils could support a large amount of biodiesel, but high production costs and competing uses for biodiesel feedstocks will likely prevent mass adoption of biodiesel fuel. Higher-priced niche markets could develop for biodiesels as a result of environmental regulations. Biodiesel has many environmental advantages relative to petroleum diesel, such as lower CO, CO2, SOx, and particulate matter emissions. Enhancing fuel properties by...
Tipo: Report Palavras-chave: Biodiesel; Biodiesel blends; Fatty acid esters; Soybean; Oil crops; Animal fats; Plant genetics; Diesel engines; Alternative fuels; Resource /Energy Economics and Policy.
Ano: 1998 URL: http://purl.umn.edu/34029
Registros recuperados: 7
Primeira ... 1 ... Última
 

Empresa Brasileira de Pesquisa Agropecuária - Embrapa
Todos os direitos reservados, conforme Lei n° 9.610
Política de Privacidade
Área restrita

Embrapa
Parque Estação Biológica - PqEB s/n°
Brasília, DF - Brasil - CEP 70770-901
Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco

Valid HTML 4.01 Transitional