The expectation for the hydrogen-utilizing society has risen. For this social need, it is necessary to achieve the hydrogen production process of excellent productivity. In the hydrogen production by the steam reforming reaction of the methane, the technology that separates and purifies the generated hydrogen relates directly to the production cost. We have developed the simulation system [1] concerning the design of the separation module to take out the hydrogen of the high purity efficiently. This system uses computational fluid dynamics (CFD) engine developed for the simulation of gas permeation through membranes. Takaba et al. [2] reported the importance of considering non-ideal fluid dynamics in the design of membrane module. Reflecting an actual gas flow when this system is used can do the performance evaluation of the separation membrane module with complex structure. The purpose of this system is to propose the modular construction parameter set to raise the separation performance of the module most on the design of the separation membrane module.
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