Dynamic behaviour of a K-doped Ga substituted and microwave aged hydrotalcite-derived mixed oxide during CO2 sorption experiments

• Type: Article in International Scientific Journal
• Date: 2019

Authors

Joel M. Silva (Author) FEUP; R. Trujillano (Author) Other; V. Rives (Author) Other; M. A. Soria (Author) FEUP; Luís M. Madeira (Author) FEUP

Journal

Title: Journal of Industrial and Engineering Chemistry

Vol. 72

Pages: 491-503

ISSN: 1226-086X

Publisher: Korean Society of Industrial Engineering Chemistry

Indexing

ISI Web of Knowledge - 0 Citations

Scopus - 5 Citations

INSPEC

Associated Projects

LEPABE-2-ECO-INNOVATION - LEPABE-2-ECO-INNOVATION

Other information

Authenticus ID: P-00Q-3M6

DOI: 10.1016/j.jiec.2019.01.005

Abstract (EN): A potassium impregnated magnesium-aluminum-gallium hydrotalcite, aged under microwave irradiation (K-HTCGa MW), was tested for CO2 capture during a long term breakthrough experimental campaign. Higher total pressures, CO2 concentrations in the feed and temperatures resulted in higher outstanding sorption capacities. The presence of H2O was considerably advantageous for increasing the CO2 capture. Finally, it was observed that higher total pressures, temperatures and H2O contents allowed higher bed usage efficiencies. EDS elemental distribution mapping showed that potassium and gallium were mobilized towards the sorbent surface under wet conditions, which could have contributed to the enhanced behavior of the sorbent under such conditions.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 13