dc.creatorSahir A.H.
dc.creatorDansie J.K.
dc.creatorCadore A.L.
dc.creatorLighty J.S.
dc.date2014
dc.date2015-06-25T17:54:12Z
dc.date2015-11-26T14:31:38Z
dc.date2015-06-25T17:54:12Z
dc.date2015-11-26T14:31:38Z
dc.date.accessioned2018-03-28T21:34:59Z
dc.date.available2018-03-28T21:34:59Z
dc.identifier
dc.identifierInternational Journal Of Greenhouse Gas Control. , v. 22, n. , p. 237 - 243, 2014.
dc.identifier17505836
dc.identifier10.1016/j.ijggc.2014.01.008
dc.identifierhttp://www.scopus.com/inward/record.url?eid=2-s2.0-84894066979&partnerID=40&md5=7413f35c658c92186a93a31249c7230f
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/86626
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/86626
dc.identifier2-s2.0-84894066979
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1247416
dc.descriptionA solid-fuel combustion system based on chemical-looping combustion (CLC) and chemical-looping with oxygen uncoupling (CLOU) has the potential to assist in the capture of CO2 from coal-fired power plants. In both processes an air separation unit is not required, and the flue gas streams from CLC and CLOU contain primarily carbon dioxide and water, which facilitates CO2 capture. CLOU offers a potential advantage for solid fuels as it uses combustion reactions. The O2 for the combustion reactions in CLOU is supplied from the reduction of a metal oxide (e.g. CuO). Iron-based materials are being considered for oxygen carriers in CLC, wherein the coal is gasified, and subsequently the product gas is oxidized to CO2 and H2O by reaction with the circulating oxygen carrier. CLOU affords faster coal char oxidation reaction rates, as compared to CLC coal gasification reactions, but CuO-based materials for CLOU will necessarily be more expensive. Furthermore, the stability of CuO-based oxygen carrier materials is also an important concern. In this paper, ASPEN PLUS process engineering models were developed for combustion of a Wyoming Powder River Basin coal using an iron-based oxygen carrier for CLC and a copper-based oxygen carrier for CLOU. The objective of these process models was to evaluate the material and energy requirements for a process development unit by incorporating insights from previously reported kinetic studies on laboratory scale units. A relative economic analysis has also been performed to address key technical challenges which will subsequently help in addressing the development of CLC and CLOU for solid fuels. Due to slower char gasification reaction times, CLC requires a larger reactor, which results in a relatively higher capital cost. It also manifests in a higher pressure drop and consequently higher energy costs for fluidizing the oxygen carrier. © 2014 Elsevier Ltd.
dc.description22
dc.description
dc.description237
dc.description243
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dc.languageen
dc.publisher
dc.relationInternational Journal of Greenhouse Gas Control
dc.rightsfechado
dc.sourceScopus
dc.titleA Comparative Process Study Of Chemical-looping Combustion (clc) And Chemical-looping With Oxygen Uncoupling (clou) For Solid Fuels
dc.typeArtículos de revistas


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