US 12,370,520 B2 · Scheduling of semi-batch chemical-looping reactors

Abstract

Systems/methods for continuous operation of fixed bed reactors using gaseous fuels for 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 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, while satisfying constraints imposed for carbon capture, fuel conversion, power plant safety and oxygen carrier stability.

Claims14

Dependent claims

A system for chemical-loop reactor-based processing, comprising a plurality of chemical-looping reactors that includes at least a first reactor, a second reactor and a third reactor arranged cyclically,

wherein each of the plurality of chemical-looping reactors includes an inlet and an outlet;
and
wherein the first reactor, the second reactor and the third reactor are fed cyclically such that feedstock flow to the plurality of chemical-looping reactors is initially fed to the inlet of the first reactor, then feedstock flow is fed to the second reactor and then feedstock flow is fed to the third reactor,
wherein feedstock flow that initially enters the first reactor is fed to the second reactor and then to the third reactor,
wherein feedstock flow that initially enters the second reactor is fed to the third reactor and then to the first reactor, and
wherein feedstock flow that initially enters the third reactor is fed to the first reactor and then to the second reactor;
thereby mimicking a simulated moving bed reactor.

4 more elements

Dependencies are inferred from the claim text.

Scheduling of semi-batch chemical-looping reactors

Life of this patent

Scheduling of semi-batch chemical-looping reactors

Life of this patent

Abstract

Claims14