Performance

 

Inputs for the performance of the chemical looping CO2 capture system are entered on the Performance parameter screen . The following parameters are shown:

•Air Reactor:

•Air Reactor Temperature: The temperature of the air reactor. The following choices are available:

•900°C

•1000°C

•1100°C (This is the default.)

•1200°C

•Inlet Excess MeO: The mole flow of OC is expressed as a function of excess amount of NiO exiting the fuel reactor. This NiO is the excess amount compared with the stoichiometric amount of OC required for the fuel. The mole flow rate of OC determines the adiabatic temperature in the fuel reactor.

•Excess Air Ratio: Inorder to maintain the air reactor temperature at the specified value, the amount of excess air has to be varied. The adiabatic temperature depends on the air flow rate and temperature, oxygen carrier (OC) flow rate and temperature.

•Superficial Gas Inlet Velocity: Superficial gas velocity at the air reactor inlet.

•Residence Time of Solids: Residence time of solids in the air reactor.

•Fuel Reactor:

•Fuel Reactor Temperature: The temperature of the fuel reactor.

•Stoichiometric Ratio: The stoichiometric ratio of O2 versus fuel.

•Combustion Efficiency: The fuel reactor combustion efficiency.

•Residence Time of Solids: The residence time of solids in the fuel reactor.

•OC Degeneration Rate: Oxygen carrier solid degradation rate.

•Maximum Train Diameter: This is the maximum diameter for either the air reactor or the fuel reactor.

•Number of Operating Trains: This is the number of operating air reactors. It must be an integer.

•Number of Spare Trains: This is the number of spare air reactors; each reactor assumes a full train of assorted equipment.

•CLC Power Requirement: This is the electricity used by the chemical looping system for internal use. It is expressed as a percent of the gross plant capacity.

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