Hydrogen separation by dense cermet membranes

Balachandran, U.; Lee, T.H.; Chen, L.; Song, Sun-Ju; Picciolo, J. J.; Dorris, S. E.

doi:10.1016/j.fuel.2005.05.027

Cited by 78 publications

(26 citation statements)

References 4 publications

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“…3 Incorporation of water-gas shift catalyst in the H 2 separation membrane reactor to reduce overall system cost and to drive the water-gas shift reaction equilibrium forward CO þ H 2 O ¼ ð CO 2 þ H 2 Þ with continual removal of H 2 ductivities in this temperature range. Significant work on perovskites has established that they may be well-suited to application in this temperature regime (500-900°C) [106,107]. Optimal temperatures for reforming of natural gas occur at 800 to 950°C for good conversion at 2.6 MPa for large-scale H 2 production [108].…”

Section: Application Regimes Of Proton Conductors For H 2 Separationmentioning

confidence: 99%

Review of proton conductors for hydrogen separation

Phair

Badwal

2006

Ionics

223

132

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There is a global push to develop a range of hydrogen technologies for timely adoption of the hydrogen economy. This is critical in view of the depleting oil reserves and looming transport fuel shortage, global warming, and increasing pollution. Molecular hydrogen (H 2 ) can be generated by a number of renewable and fossil-fuel-based resources. However, given the high cost of H 2 generation by renewable energy at this stage, fossil or carbon fuels are likely to meet the short-to medium-term demand for hydrogen. In view of this, effective technologies are required for the separation of H 2 from a gas feed (by-products of coal or bio-mass gasification plants, or gases from fossil fuel partial oxidation or reforming) consisting mainly of H 2 and CO 2 with small quantities of other gases such as CH 4 , CO, H 2 O, and traces of sulphur compounds. Several technologies are under development for hydrogen separation. One such technology is based on ion transport membranes, which conduct protons or both protons and electrons. Although these materials have been considered for other applications, such as gas sensors, fuel cells and water electrolysis, the interest in their use as gas separation membranes has developed only recently. In this paper, various classes of proton-conducting materials have been reviewed with specific emphasis on their potential use as H 2 separation membranes in the industrial processes of coal gasification, natural gas reforming, methanol reforming and the watergas shift (WGS) reaction. Key material requirements for their use in these applications have been discussed.

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Section: Application Regimes Of Proton Conductors For H 2 Separationmentioning

confidence: 99%

Review of proton conductors for hydrogen separation

Phair

Badwal

2006

Ionics

223

132

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“…Atomic transport membranes, so called dense metallic membrane, transport hydrogen by dissociatively adsorbing H 2 onto the metal surface, diffusion of atomic H through bulk metal and associatively desorbing H 2 from the metal surface [6]. Proton transport membranes conduct proton and electrons independently, so that hydrogen is dissociated on one side and reconstituted on the other [7,8]. Among those membranes, membranes of Pd and its alloys have come to occupy an important position in hydrogen separation from gaseous mixture because they have high hydrogen permeability, chemical compatibility and excellent hydrogen selectivity [9,10].…”

Section: Introductionmentioning

confidence: 99%

A new membrane module design with disc geometry for the separation of hydrogen using Pd alloy membranes

Ryi

Park

Kim

et al. 2007

Journal of Membrane Science

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“…Inorganic (ceramic, metallic, zeolite, and carbon) membranes can be favourably used in the field of gas separations at high temperature and pressure values [9][10][11][12]. A specific example is represented by the Pd-based membranes that offer higher selectivity values for hydrogen in comparison with other membrane materials and good mechanical and thermal stability [13,14].…”

Section: Introductionmentioning

confidence: 99%