Metal-organic framework membrane process for high purity CO sub(2) production

Significance Gas separation by metal-organic framework (MOF) membranes is an emerging research field. Their commercial application potential is, however, still rarely explored due in part to unsatisfied separation characteristics and difficulty in finding suitable applications. Herein, we report &qu...

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Bibliographic Details
Published in:AIChE journal 2016-11, Vol.62 (11), p.3836-3841
Main Authors: Rui, Zebao, James, Joshua B, Kasik, Alexandra, Lin, Y S
Format: Article
Language:English
Subjects:
Carbon dioxide
Chemical engineers
Drying
Membranes
Metal-organic frameworks
Purity
Reluctance
Separation
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Summary:Significance Gas separation by metal-organic framework (MOF) membranes is an emerging research field. Their commercial application potential is, however, still rarely explored due in part to unsatisfied separation characteristics and difficulty in finding suitable applications. Herein, we report "sharp molecular sieving" properties of high quality isoreticular MOF-1 (IRMOF-1) membrane for CO sub(2) separation from dry, CO sub(2) enriched CO sub(2)/CH sub(4), and CO sub(2)/N sub(2) mixtures. The IRMOF-1 membranes exhibit CO sub(2)/CH sub(4) and CO sub(2)/N sub(2) separation factors of 328 and 410 with CO sub(2) permeance of 2.55 10 super(-7) and 2.06 10 super(-7) mol m super(-2) s super(-1) Pa super(-1) at feed pressure of 505 kPa and 298 K, respectively. High grade CO sub(2) is efficiently produced from the industrial or lower grade CO sub(2) feed gas by this MOF membrane separation process. The demonstrated "sharp molecular sieving" properties of the MOF membranes and their potential application in production of value-added high purity CO sub(2) should bring new research and development interest in this field. copyright 2016 American Institute of Chemical Engineers AIChE J, 62: 3836-3841, 2016
ISSN:0001-1541
1547-5905
DOI:10.1002/aic.15367