Characterization of commercial off-the shelf regenerable sorbent to scrub carbon dioxide in a portable life support system

Arai, Tatsuya; Fricker, John

doi:10.1016/j.actaastro.2018.04.003

Cited by 1 publication

(2 citation statements)

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“…Adsorption is already used in space-based applications such as managing the CO 2 concentration in spacecraft. 8,9 Metal−organic frameworks (MOFs) have been studied extensively as promising materials for a wide range of gas separation applications. These materials can be tuned to have a specific surface area, pore size, and chemical functionality based on a wide variety of both metal nodes and organic ligands.…”

Section: Introductionmentioning

confidence: 99%

“…The size, weight, and energy constraints associated with interplanetary missions mean that adsorption-based approaches to oxygen/helium separations are more appealing than processes that are used in related large-scale industry settings such as cryogenic distillation. Adsorption is already used in space-based applications such as managing the CO 2 concentration in spacecraft. , Metal–organic frameworks (MOFs) have been studied extensively as promising materials for a wide range of gas separation applications. These materials can be tuned to have a specific surface area, pore size, and chemical functionality based on a wide variety of both metal nodes and organic ligands.…”

Section: Introductionmentioning

confidence: 99%

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Identifying High-Performance Metal–Organic Frameworks for Low-Temperature Oxygen Recovery from Helium by Computational Screening

Jamdade

Gurnani

Fang

et al. 2023

Ind. Eng. Chem. Res.

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Metal–organic frameworks (MOFs) are an important class of porous crystalline materials for applications ranging from gas adsorption and separation to catalysis. There are thousands of potential MOFs available for separation applications. We developed a computational approach to screen MOFs for the separation of oxygen–helium mixtures at low temperatures (100–200 K), conditions that were motivated by issues associated with propulsion in space-based settings. We used detailed molecular simulations for a small number of MOFs to develop screening methods that were then used to estimate the optimum temperatures for separations using pressure swing adsorption for 2932 MOFs from the CoRE MOF database and the swing capacity and oxygen–helium selectivity at these temperatures. We used the stability of the best-performing structures in the presence of moisture as a means to provide a short list of high-performance materials. In addition to identifying specific materials for oxygen–helium separations, this approach could prove useful for selecting adsorbents for other gas separations.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%