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.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
