Development of a new porous metal support of metallic dense membrane for hydrogen separation

Ryi, Shin Kun; Park, Jong Soo; Kim, Sung Hyun; Cho, Sung Ho; Park, Joo Seok; Kim, Dong Won

doi:10.1016/j.memsci.2005.12.035

Cited by 57 publications

(21 citation statements)

References 19 publications

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“…We fabricated Pd-Cu-Ni ternary alloy membranes supported on porous nickel supports by palladium and copper sputtering followed by the Cu-reflow method [13,14]. In order to design the hydrogen purifier and to confirm whether or not it needs a purge system, we measured the hydrogen permeation flux for these composite alloy membranes in the temperature range across the ␣-␤ phase transition (373-623 K).…”

Section: Introductionmentioning

confidence: 99%

Long-term hydrogen permeation tests of Pd–Cu–Ni/PNS with temperature cycles from room temperature to 773K

Ryi

Park

Kim

et al. 2007

Journal of Membrane Science

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Section: Introductionmentioning

confidence: 99%

Long-term hydrogen permeation tests of Pd–Cu–Ni/PNS with temperature cycles from room temperature to 773K

Ryi

Park

Kim

et al. 2007

Journal of Membrane Science

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“…Pd-Cu-Ni ternary alloy membranes, were prepared by sputtering on to a porous nickel support followed by Cu-reflow method. The details of fabrication methods are shown in previous papers [22,23]. The permeation apparatus consists of a membrane module, furnace, temperature controller, pressure gauge/controller and mass flow controller as shown in detail in Fig.…”

Section: Permeation Measurementsmentioning

confidence: 99%

“…We can attribute the increase of pressure exponents with increasing temperature to the increase of support resistance. The used porous nickel support has Knudsen diffusion and gas permeance that decrease with increasing temperature [23,27].…”

Section: Performance Of the Membrane Modulementioning

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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“…The materials in commercial use for porous supports are: ceramics, stainless steel and glass. The membrane support should be porous, smooth-faced, highly permeable, thermally stable and metal adhesive [11].…”

Section: Introductionmentioning

confidence: 99%

Enhancement of Methanol Production in a Membrane Dual‐Type Reactor

Rahimpour

Lotfinejad

2007

Chem Eng & Technol

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In this study, a dynamic model for a membrane dual-type methanol reactor was developed in the presence of long term catalyst deactivation. The proposed model is used to compare the performance of a membrane dual-type methanol reactor with a conventional dual-type methanol reactor. A conventional dual-type methanol reactor is a shell and tube heat exchanger reactor in which the first reactor is cooled with cooling water and the second one is cooled with synthesis gas. In a membrane dual-type reactor, the wall of the tubes in the gas-cooled conventional reactor is covered with a palladium-silver membrane, which is only permeable to hydrogen. Hydrogen can penetrate from the feed synthesis gas side into the reaction side due to the hydrogen partial pressure driving force. Hydrogen permeation through the membrane shifts the reaction towards the product side according to the thermodynamic equilibrium. The proposed dynamic model was validated against measured daily process data of a methanol plant recorded for a period of four years and a good agreement was achieved. The simulation results show that there is a favorable profile of temperature and activity of the membrane dual-type reactor relative to single and conventional dual-type reactor systems. Therefore, the performance of methanol reactor systems improves when a membrane is used in a conventional dual-type methanol reactor.

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Development of a new porous metal support of metallic dense membrane for hydrogen separation

Cited by 57 publications

References 19 publications

Long-term hydrogen permeation tests of Pd–Cu–Ni/PNS with temperature cycles from room temperature to 773K

Long-term hydrogen permeation tests of Pd–Cu–Ni/PNS with temperature cycles from room temperature to 773K

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

Enhancement of Methanol Production in a Membrane Dual‐Type Reactor

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