 Tetra-n-butyl ammonium bromide semi-clathrate hydrate process for post-combustion capture of carbon dioxide in the presence of dodecyl trimethyl ammonium chlorideXiao-Sen Li, Chun-Gang Xu, Zhao-Yang Chen and Hui-Jie Wu Energy, 2010, vol. 35, issue 9, 3902-3908 Abstract: To determine the appropriate operating conditions for separating carbon dioxide from flue gas via the hydrate formation, the effects of the concentrations of dodecyl trimethyl ammonium chloride (DTAC) in 0.29mol% Tetra-n-butyl ammonium bromide (TBAB) aqueous solution and the initial pressures on the induction time of the hydrate formation and CO2 separation efficiency are investigated. The experiments are conducted at the DTAC concentration range of 0–0.056mol%, initial pressures range of 0.66MPa–2.66MPa and temperature range of 274.95K–277.15K. The results indicate that the initial pressure of 1.66MPa in conjunction with the concentration of 0.028mol% DTAC is most favorable for CO2 separation. At the condition, the induction time of forming the hydrate can be shortened considerably and CO2 can be purified from 17.0mol% to 99.4% with the two-stage hydrate separation process. CO2 split fractions for Stage 1 and Stage 2 are 0.54 and 0.39, respectively, and the separation factors are 9.60 and 62.25, respectively. Keywords: CO2 hydrate; Flue gas; TBAB; DTAC; Semi-clathrate hydrate (search for similar items in EconPapers) Downloads: (external link) Related works: Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:35:y:2010:i:9:p:3902-3908 DOI: 10.1016/j.energy.2010.06.009 Access Statistics for this article Energy is currently edited by Henrik Lund and Mark J. Kaiser More articles in Energy from Elsevier |
Is your work missing from RePEc? Here is how to contribute.
Questions or problems? Check the EconPapers FAQ or send mail to .
EconPapers is hosted by the
School of Business at Örebro University.