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The Chemical Looping Gasification of Biomass for Syngas Utilization in a Solid Oxide Fuel Cell System Simulated in Aspen Plus

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Title: The Chemical Looping Gasification of Biomass for Syngas Utilization in a Solid Oxide Fuel Cell System Simulated in Aspen Plus
Author: Gopaul, Stephen
Department: School of Engineering
Program: Engineering
Advisor: Dutta, Animesh
Abstract: This thesis bridges the green energy fields of high-purity H2 synthesis gas (syngas) production from biomass chemical looping gasification (CLG) and power generation via solid oxide fuel cell (SOFC) operation. Two distinct CLG processes were simulated in Aspen Plus using the abundant, nonconventional poultry litter biomass type. The first process (CLG 1) involved CO2 capture using a CaO sorbent and generated lower yields of higher-purity syngas. The second process (CLG 2) did not involve CO2 capture but used iron-based oxygen carriers to produce higher yields of lower-purity syngas. The resulting syngas from either process was directly fed as fuel to a simulated SOFC to determine operational viability. Both syngas types proved effective in the SOFC, however CLG 1 syngas exhibited relatively higher performance overall. The results contribute to both fields through novel approaches to the respective goals of each and by outlining the benefits of an integrated CLG-SOFC system.
URI: http://hdl.handle.net/10214/8037
Date: 2014-04
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