Pd-based binary and ternary alloy membranes: Morphological and perm-selective characterization in the presence of H2S

Braun, Fernando; Tarditi, Ana María; Miller, James B.; Cornaglia, Laura María

doi:10.1016/j.memsci.2013.09.026

Cited by 61 publications

(31 citation statements)

References 26 publications

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“…At 400 C, both alloys exhibited clean-H 2 permeability similar to that of pure Pd. Upon exposure to 100 ppm H 2 S at 400 C, both lost $70% of their pure H 2 permeability, but recovered most of that when the H 2 S was removed [55]. Recovery is consistent with the absence of a bulk sulfide scale.…”

Section: Ternary Pd Alloyssupporting

confidence: 63%

“…At 20 ppm, a similar membrane lost 57% of its clean H 2 flux. Braun recently reported that a Pd 91 Au 9 alloy lost 60% of its permeability when exposed to 100 ppm H 2 S for 24 h at 400 C; most of the lost permeability was recovered when H 2 S was removed [55]. Chen observed that after 4 h in 54.8 ppm H 2 S at 400 C, Pd 95.5 Au 4.5 , a membrane with lower Au content than Braun's, lost 85% of its permeability [19].…”

Section: Pdaumentioning

confidence: 99%

See 1 more Smart Citation

Pd-Alloy membranes for hydrogen separation

Miller

Morreale

Smith

2014

Reactor and Process Design in Sustainable Energy Technology

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Section: Ternary Pd Alloyssupporting

confidence: 63%

Section: Pdaumentioning

confidence: 99%

Pd-Alloy membranes for hydrogen separation

Miller

Morreale

Smith

2014

Reactor and Process Design in Sustainable Energy Technology

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“…In addition to the binary alloys, more complex alloys have also been studied with the aim of combining the advantages of different metals [71]. For example, Pd-Ag-Au alloy membranes were fabricated for hydrogen separation by Cornaglia et al They found that the ternary alloy membrane with the addition of Au and Ag had comparable hydrogen permeance to the pure Pd membrane, while the sulphur poisoning resistance was significantly improved compared with pure Pd and Pd-Ag alloy membranes under testing conditions in the presence of H 2 S [91].…”

Section: The Development Of Dense Metal Membranes For Hydrogen Separamentioning

confidence: 99%

A Review on the Production and Purification of Biomass-Derived Hydrogen Using Emerging Membrane Technologies

Yin

Yip

2017

Catalysts

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Abstract:Hydrogen energy systems are recognized as a promising solution for the energy shortage and environmental pollution crises. To meet the increasing demand for hydrogen, various possible systems have been investigated for the production of hydrogen by efficient and economical processes. Because of its advantages of being renewable and environmentally friendly, biomass processing has the potential to become the major hydrogen production route in the future. Membrane technology provides an efficient and cost-effective solution for hydrogen separation and greenhouse gas capture in biomass processing. In this review, the future prospects of using gas separation membranes for hydrogen production in biomass processing are extensively addressed from two perspectives: (1) the current development status of hydrogen separation membranes made of different materials and (2) the feasibility of using these membranes for practical applications in biomass-derived hydrogen production. Different types of hydrogen separation membranes, including polymeric membranes, dense metal membranes, microporous membranes (zeolite, metal-organic frameworks (MOFs), silica, etc.) are systematically discussed in terms of their fabrication methods, gas permeation performance, structure stability properties, etc. In addition, the application feasibility of these membranes in biomass processing is assessed from both practical and economic perspectives. The benefits and possibilities of using membrane reactors for hydrogen production in biomass processing are also discussed. Lastly, we summarize the limitations of the currently available hydrogen membranes as well as the gaps between research achievements and industrial application. We also propose expected research directions for the future development of hydrogen gas membrane technology.

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“…68,70,71 Studies conducted to understand sulfur poisoning of metal membranes for H 2 separation were summarized by Gabitto et al 72 A few key and recent studies focused on the sulfur resistance of metal membranes are discussed below. The extent of H 2 permeance decline, physical damage to membrane surface and bulk, and H 2 permeance recovery after H 2 S exposure is dependent on the alloy composition, operating temperature, and H 2 S concentration in the feed streams.…”

Section: Metal and Metal Alloy Membranesmentioning

confidence: 99%