Reduction of CO2 emissions is imperative to stop climate change. In the present study, the performance of a system based on chemical looping combustion in fixed bed is investigated. The plant allows power generation with obtainment of a CO2-rich stream ready for sequestration. To overcome the problems related to large temperature variations, use of two in-series oxygen carriers, Cu/CuO and Ni/NiO supported on Al2O3, is investigated. CH4 was considered as fuel. A 1D numerical model was developed to estimate temperature and concentration profiles within the fixed bed as a function of time. A network of parallel reactors was designed to obtain continuous power generation at the turbine. A techno-economic analysis was performed to estimate plant throughput, overall efficiency, total capital costs, and levelized cost of energy of the proposed system.

Development and techno-economic analysis of a two carriers reactor arrangement for chemical-looping combustion in a fixed bed

Tregambi C.;Bareschino P.;Mancusi E.
;
Pepe F.
2021-01-01

Abstract

Reduction of CO2 emissions is imperative to stop climate change. In the present study, the performance of a system based on chemical looping combustion in fixed bed is investigated. The plant allows power generation with obtainment of a CO2-rich stream ready for sequestration. To overcome the problems related to large temperature variations, use of two in-series oxygen carriers, Cu/CuO and Ni/NiO supported on Al2O3, is investigated. CH4 was considered as fuel. A 1D numerical model was developed to estimate temperature and concentration profiles within the fixed bed as a function of time. A network of parallel reactors was designed to obtain continuous power generation at the turbine. A techno-economic analysis was performed to estimate plant throughput, overall efficiency, total capital costs, and levelized cost of energy of the proposed system.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.12070/49065
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