Two-stage clathrate hydrate/membrane process for precombustion capture of carbon dioxide and hydrogen

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DOIResolve DOI: http://doi.org/10.1061/(ASCE)EE.1943-7870.0000002
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TypeArticle
Journal titleJournal of Environmental Engineering
Volume135
Issue6
Pages411417; # of pages: 7
Subjectseparation; hydrogen; carbon dioxide; kinetics; combustion
AbstractA hybrid process for the capture of CO2 and H2 from a treated fuel gas mixture is presented. It consists of two hydrate crystallization stages operating at 273.7 K and 3.8 and 3.5 MPa, respectively. The CO2-lean stream from the first stage is directed to a membrane separation unit whereas the CO2-rich one is directed to the second hydrate stage. These operating pressures at the crystallization stages are possible by adding 2.5% by mole propane. Propane enables the reduction in the hydrate formation pressure and thus reduces the cost associated with the compression of the fuel gas. The two hydrate stages would operate at 7.5 and 3.5 MPa without adding propane. This work provides the relevant kinetic data, as well as the separation efficiency and recoveries achieved.
Publication date
LanguageEnglish
AffiliationNRC Steacie Institute for Molecular Sciences; National Research Council Canada
Peer reviewedYes
NPARC number16380394
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Record identifier62e9556c-9861-454c-bc31-c1e080c13949
Record created2011-02-14
Record modified2016-05-09
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