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[PDF] Microsoft PowerPoint - EML4450L26 Formato do arquivo: PDF/Adobe Acrobat - Ver em HTML Circulating fluidized bed (CFB) and integrated gasification combined cycles ... total energy production. 113412 TJ. USA Bioenergy Sources. Biomass type: ... sesec.fsu.edu/documents/lectures/ECS2005/Bioenergy.pdf - Páginas Semelhan

Calcined dolomite is a good catalyst in terms of its activity for gasification of residue derived from biomass hydrolysis for hydrogen production, whereas its fragility can cause trouble during operation. A novel modification method aimed at improving the strength of the calcined dolomite has been presented using magnesium nitrate as the modifier, which was introduced into the dolomite via a co-precipitation process. The strength of the modified dolomite can be up to 250 times as high as the unmodified one and can cause much less bed pressure drop and catalyst loss, though the activity is slightly lowered after modification. Keywords: calcined dolomite modification; catalytic gasification; hydrogen production; biomass hydrolysis; bioenergy; magnesium nitr

Economical CO2, SOx, and NOx capture from fossil-fuel utilization with combined renewable hydrogen production and large-scale carbon sequestration Danny Daya, Corresponding Author Contact Information, E-mail The Corresponding Author, Robert J. Evansb, James W. Leec and Don Reicoskyd aEprida, Inc., 6300 Powers Ferry Road, Suite 307, Atlanta, GA 30339, USA bNational Renewable Energy Laboratory, 1617 Cole Blvd, Golden, CO 80401, USA cOak Ridge National Laboratory, 4500N, A16, MS-6194, Oak Ridge, TN 37831, USA dUSDA-Agricultural Research Service, 803 Iowa Avenue, Morris, MN 56267, USA Available online 17 November 2004. Purchase the full-text article References and further reading may be available for this article. To view references and further reading you must purchase this article. Abstract The objective of this project was to investigate and demonstrate production methods at a continuous, bench-scale level and generate sufficient material for an initial evaluation of a potentially profitable method of producing bioenergy and sequestering carbon. The novel process uses agricultural, forestry, and waste biomass to produce hydrogen using pyrolysis and reforming technologies conducted in a 50 kg/h pilot demonstration. The test runs produced a novel, nitrogen-enriched, slow-release, carbon-sequestering fertilizer. Seven kilograms of the material were produced for further plant growth response testing. A pyrolysis temperature profile was discovered that results in a carbon char with an affinity for capturing CO2 through gas phase reaction with mixed nitrogen-carrying nutrient compounds within the pore structures of the carbon char. A bench-scale project demonstrated a continuous process fluidized-bed agglomerating process. The total amount of CO2 sequestration was managed by controlling particle discharge rates based on density. The patent-pending process is particularly applicable to fossil-fuel power plants as it also removes SOx and NOx, does not require ene

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