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Open AccessFeature PaperArticle

Simulation-Based Design and Economic Evaluation of a Novel Internally Circulating Fluidized Bed Reactor for Power Production with Integrated CO2 Capture

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Flow Technology Research Group, SINTEF Industry, 7465 Trondheim, Norway
2
Department of Energy and Process Engineering, Norwegian University of Science and Technology, 7491 Trondheim, Norway
*
Authors to whom correspondence should be addressed.
Processes 2019, 7(10), 723; https://doi.org/10.3390/pr7100723 (registering DOI)
Received: 10 September 2019 / Revised: 27 September 2019 / Accepted: 30 September 2019 / Published: 11 October 2019
Limiting global temperature rise to well below 2 °C according to the Paris climate accord will require accelerated development, scale-up, and commercialization of innovative and environmentally friendly reactor concepts. Simulation-based design can play a central role in achieving this goal by decreasing the number of costly and time-consuming experimental scale-up steps. To illustrate this approach, a multiscale computational fluid dynamics (CFD) approach was utilized in this study to simulate a novel internally circulating fluidized bed reactor (ICR) for power production with integrated CO2 capture on an industrial scale. These simulations were made computationally feasible by using closures in a filtered two-fluid model (fTFM) to model the effects of important subgrid multiphase structures. The CFD simulations provided valuable insight regarding ICR behavior, predicting that CO2 capture efficiencies and purities above 95% can be achieved, and proposing a reasonable reactor size. The results from the reactor simulations were then used as input for an economic evaluation of an ICR-based natural gas combined cycle power plant. The economic performance results showed that the ICR plant can achieve a CO2 avoidance cost as low as $58/ton. Future work will investigate additional firing after the ICR to reach the high inlet temperatures of modern gas turbines. View Full-Text
Keywords: chemical looping combustion; power production; carbon capture; internally circulating reactor; reactor design; fluidization; techno-economics; computational fluid dynamics; filtered two-fluid model; coarse-grid simulations chemical looping combustion; power production; carbon capture; internally circulating reactor; reactor design; fluidization; techno-economics; computational fluid dynamics; filtered two-fluid model; coarse-grid simulations
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MDPI and ACS Style

Cloete, J.H.; Khan, M.N.; Cloete, S.; Amini, S. Simulation-Based Design and Economic Evaluation of a Novel Internally Circulating Fluidized Bed Reactor for Power Production with Integrated CO2 Capture. Processes 2019, 7, 723.

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