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Carbon Membranes: A Viable Technology for the Recovery and Purification of Hydrogen Gas

Published online by Cambridge University Press:  26 February 2011

Anna Merritt ,
Ramakrishnan Rajagopalan  and
Henry C Foley
Anna Merritt
Affiliation:
[email protected], The Pennsylvania State University, Chemical Engineering, 166 Fenske Laboratory, University Park, PA, 16802, United States, 8148659734, 8148657846
Ramakrishnan Rajagopalan
Affiliation:
[email protected], The Pennsylvania State University, Materials Research Institute, University Park, PA, 16802, United States
Henry C Foley
Affiliation:
[email protected], The Pennsylvania State University, Chemical Engineering, University Park, PA, 16802, United States
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Abstract

High throughput, asymmetric carbon membranes derived from pyrolysis of polyfurfuryl alcohol (PFA) have been fabricated on a novel support composed of porous stainless steel filled with nanoparticles. Variation of PFA molecular weight was found to have a significant impact on the single gas permeances of the resultant carbon membranes. High molecular weight precursor material yielded the best results; oxygen permeance values for membranes synthesized from high molecular weight resins were on the order of ∼1×10−8 mol m−2s−1Pa−1 with oxygen over nitrogen ideal selectivities greater than 7. Binary separations of hydrogen from nitrogen and hydrogen from carbon monoxide were carried out using a NPC membrane synthesized from high molecular weight precursor material. For both separations, hydrogen purities of better than 99% by volume were obtained in the permeate stream.

Keywords

carbonizationpyrolysisporosity
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 971: Symposium Z – Hydrogen Storage Technologies , 2006 , 0971-Z06-09
Copyright
Copyright © Materials Research Society 2007

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References

REFERENCES

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