Hydrogen separation membrane configuration

A. L. Mejdell, T. A. Peters, M. Stange, H. J. Venvik and R. Bredesen, Performance and application of thin Pd-alloy hydrogen separation membranes in different configurations, J. Taiwan Inst. Chem. Eng., 2009, 40, 253-259. 

Based on the different compositions, structures and configurations, the dense metallic membranes can be prepared using various methods. As described earlier, the dense metallic hydrogen separation membrane can be... 

Because the Inconel 600 metal alloy used as a mounting material for the membrane itself becomes permeable to hydrogen under the test conditions, a separate experiment, configured in a similar manner, was performed to determine the permeance of the Inconel 600. 

In configuration 1, the reformer and membrane module (RMM) where hydrogen selective membrane is assembled in separation modules applied downstream to reaction units so that the process scheme is composed by a series of reaction-separation units (staged membrane reactor architecture)... 

The methane combustion configuration is sketched in Figure 3.14 and consists of two sections [44]. Hydrogen permselective membranes are integrated in a fiuidized reform-ing/shift top section where ultra-pure H2 is extracted and the energy required for the SR is supplied via in situ methane oxidation in a separate fluidized bottom section, where oxygen is selectively fed to the methane/steam feed via oxygen permselective membranes. 

An MR scheme is reported in Fig. 13.1. The simplest configuration is composed of two concentric tubes. The catalyst is packed in the annular zone, while the inner tube is the membrane itself. A sweeping gas may be fed through the inner tube, co-currently or counter-currently, in order to increase the driving force of hydrogen separation. Two different zones can be recognized the reaction zone at higher pressure, which is the... 

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