SAPO-34 Membranes for Xenon Capture from Air
Journal Article
·
· Journal of Membrane Science
Capturing Xe from gas mixtures represents one of the most challenging molecular gas separations. In this communication, we demonstrate the ability of a zeolite membrane, denoted as SAPO-34 to effectively capture Xe from air. Specifically, SAPO-34 membranes showed air permeances as high as 2.3 x 10-7 mol/m2 s Pa (690 GPU) and separation selectivities as high as 30.1 for a molar feed of 9:1 air/Xe. Molecular sieving, competitive adsorption, and diffusivity differences played a critical role in the overall separation performance. Membranes were air selective due to favorable molecular sieving and differences in diffusivity between gases present in mixture and Xe, which were identified as the dominant separation mechanisms. The high air permeances, and high separation selectivities, make these membranes highly appealing as a potentially less energy intensive alternative to cryogenic distillation the benchmark technology used to separate these gases. We (Pacific Northwest National Laboratory) acknowledge US Department of Energy (DOE), Office of Nuclear Energy for adsorption. P.K.T. would like to acknowledge Dr Terry Todd at Idaho National Laboratory, Dr Robert Jubin at Oakridge National Laboratory, Dr John Vienna at Pacific Northwest National Laboratory (PNNL), Kimberly Gray, Dr. Patricia Paviet and Jim Breese (DOE-NE HQ) for programmatic support. PNNL is a multi-program national laboratory operated for the US DOE by Battelle under Contract DE-AC05-76RL01830.
- Research Organization:
- Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC05-76RL01830
- OSTI ID:
- 1496822
- Report Number(s):
- PNNL-SA-136512
- Journal Information:
- Journal of Membrane Science, Journal Name: Journal of Membrane Science Journal Issue: C Vol. 573; ISSN 0376-7388
- Publisher:
- Elsevier
- Country of Publication:
- United States
- Language:
- English
Xenon Recovery by DD3R Zeolite Membranes: Application in Anaesthetics
|
journal | October 2019 |
Xenon Recovery by DD3R Zeolite Membranes: Application in Anaesthetics
|
journal | September 2019 |
Similar Records
SAPO-34 membranes for xenon capture from air
Synthesis and Evaluation of Cu-SAPO-34 Catalysts for Ammonia Selective Catalytic Reduction. 1. Aqueous Solution Ion Exchange
Kr/Xe Separation over a Chabazite Zeolite Membrane
Journal Article
·
Thu Dec 06 19:00:00 EST 2018
· Journal of Membrane Science
·
OSTI ID:1505297
Synthesis and Evaluation of Cu-SAPO-34 Catalysts for Ammonia Selective Catalytic Reduction. 1. Aqueous Solution Ion Exchange
Journal Article
·
Fri Sep 06 00:00:00 EDT 2013
· ACS Catalysis, 3(9):2083-2093
·
OSTI ID:1114093
Kr/Xe Separation over a Chabazite Zeolite Membrane
Journal Article
·
Wed Aug 10 00:00:00 EDT 2016
· Journal of the American Chemical Society
·
OSTI ID:1355102