Development and testing of an interconnected multiphase CFD-model for chemical looping combustion

作者：Kruggel Emden H^*; Rickelt S; Stepanek F; Munjiza A

来源：Chemical Engineering Science, 2010, 65(16): 4732-4745.

DOI：10.1016/j.ces.2010.05.022

• Chemical looping combustion
• Interconnected model
• Dynamic simulation
• Multiphase flow
• Multiphase reactions
• Fluidization

An interconnected multi-phase CFD model is developed capable of describing the transient behavior of a coupled chemical looping combustion systems comprising of both air and fuel reactors. The air reactor is modeled as a high velocity riser, the fuel reactor as a bubbling fluidized bed. The models of both reactors are implemented as separate CFD simulations allowing for an exchange of solid mass through time-dependent inlet and outlet boundary conditions as well as mass, momentum, heat and species sinks. The developed framework is applied to a chemical looping combustion system based on Mn(3)O(4) as carrier material in combination with CH(4) as fuel gas. Starting from a base case, different system configurations are investigated. The results indicate clearly that interconnected multi-phase CFD models are well suited for the design process of coupled chemical looping systems.

• 出版日期2010-8-15