A new apparatus to enhance the rate of gas hydrate formation: Application to capture of carbon dioxide.

Download
  1. (PDF, 603 KB)
  2. Get@NRC: A new apparatus to enhance the rate of gas hydrate formation: Application to capture of carbon dioxide. (Opens in a new window)
DOIResolve DOI: http://doi.org/10.1016/j.ijggc.2009.12.014
AuthorSearch for: ; Search for: ; Search for: ; Search for: ; Search for:
TypeArticle
Journal titleInternational Journal of Greenhouse Gas Control
Volume4
Issue4
Pages630637; # of pages: 8
SubjectGas hydrate; Carbon dioxide capture; Flue gas; Fuel gas; Hydrogen; Gas separation
AbstractA new apparatus employing a modular, mechanically agitated gas-inducing crystallizer is used to demonstrate the capture of CO2 via hydrate crystallization. The crystallizer enhances the contact of hydrate forming gases with water and thus the rate of hydrate crystallization increases. Flue gas (CO2/N2) and fuel gas (CO2/H2) mixtures were used to represent post- and precombustion capture. A comparison between the rates of hydrate formation in different crystallizers is presented by defining a metric called the normalized rate of hydrate formation. The gas uptake and the separation efficiency for the fuel and flue gas mixtures were found to be greater compared to the results obtained in a smaller scale stirred tank reactor ([Kumar et al., 2009c] and [Linga et al., 2008]). The gas uptake and CO2 recovery for flue gas mixture in the presence of THF obtained in this work was higher than that reported in the literature with tetra-n-butyl ammonium bromide and tetra-n-butyl ammonium fluoride ([Fan et al., 2009] and [Li et al., 2009]). Although hydrate crystallization is able to capture CO2, the power required for mechanical agitation was found to be very significant. If the hydrate process is to be used industrially then hydrate crystallization must be carried out without mechanical agitation.
Publication date
LanguageEnglish
AffiliationNRC Steacie Institute for Molecular Sciences; National Research Council Canada
Peer reviewedYes
NPARC number17673433
Export citationExport as RIS
Report a correctionReport a correction
Record identifier83e4d992-5985-4179-92d0-7e761ebf37b6
Record created2011-04-01
Record modified2016-05-09
Bookmark and share
  • Share this page with Facebook (Opens in a new window)
  • Share this page with Twitter (Opens in a new window)
  • Share this page with Google+ (Opens in a new window)
  • Share this page with Delicious (Opens in a new window)