Design and Scheduling of Semi-Batch Chemical-Looping Reactors
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United States of America Patent
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Issued Date -
May 12, 2022
app pub date -
Nov 8, 2021
filing date -
Nov 8, 2021
priority date (Note) -
Published
status (Latency Note)
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Abstract
Systems/methods for continuous operation of fixed bed reactors using gaseous fuels for the purpose of power generation through integration with a combined cycle power plant are provided. The fixed bed reactors are assumed to operate in a semi-batch mode composed of reactor modules that are integrated into module trains that comprise the chemical-looping combustion island of the power plant. The scheduling of each reactor train is cast as an optimization problem that maximizes thermodynamic efficiency subject to constraints imposed to each reactor and the entire island. When the chemical-looping reactors are arranged cyclically, each feeding to or being fed from another reactor, in an operating scheme that mimics simulated moving bed reactors, the thermodynamic efficiency of the reactor island can be improved. Allowing the reversal of module order in the cyclically arranged reactor modules further improves the overall thermodynamic efficiency (to 84.7%), while satisfying constraints imposed for carbon capture, fuel conversion, power plant safety and oxygen carrier stability.
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