One-Dimensional Reactor Simulations

Solsvik and Jakobsen [140] performed a set of one-dimensional two-fluid model simulations in order to elucidate whether such simple models can be suitable for further simulations of two interconnected fluidized bed reactor units with a dynamic solid flux transferred between these reactor units which collectively is denoting a circulating fluidized bed. Dynamic solid circulation between two fluidized bed units that operate at different conditions (e.g., temperatures and feed compositions) is an inherent requirement for the novel SE-SMR technology operated in fluidized bed reactors. A less computational demanding one-dimensional model to study the performance of interconnected reactor units will be an important contribution to the progress of the commercialization of circulating fluidized bed reactors intended for the SE-SMR technology. 

The kinetic model used for the conventional steam reforming process was taken from Xu and Froment [167]. The reaction takes place on a Ni/MgAl204 catalyst. The kinetics can be described by three equations, where two are independent at 

All equilibrium and kinetic constants are taken from Xu and Froment [167]. 

In the SE-SMR process, the CO2 capture reaction by a CaO-based sorbent is presented as  

The rate equation adopted in the simulations for the CO2 adsorption was taken from [142]. 

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Figure 1. Typical temperature profiles using a validated one-dimensional reactor simulation model.

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