Jump to main content
Jump to site search


Removal of elemental mercury by titania sorbents loaded with cobalt ceria oxides from syngas

Abstract

Titania sorbents loaded with cobalt ceria oxides prepared by a co-precipitation method were employed to remove elemental mercury (Hg0) from simulated syngas at low temperature (80-240C). The effects of the Co/Ce mass ratio, reaction temperature and main syngas components (H2S, H2, CO) on Hg0 removal efficiency were evaluated. BET, XRD and XPS were employed to characterize the sorbents. The results showed that up to 92% Hg0 removal efficiency could be obtained over Ce0.2Co0.1Ti at 120C. The remarkably high Hg0 removal ability of Ce0.2Co0.1Ti was attributed to the synergistic effect of cobalt and ceria. H2 and CO had a negligible effect on Hg0 removal under N2 or H2S atmosphere. The characterization results inditcated physical properties were not the main factors affecting the adsorbent activity. Moreover, XRD and XPS were used to elucidate the reatcion mechanism between cobalt and ceria. Furthermore, Hg0 removal over Ce0.2Co0.1Ti was proposed to follow the Langmuir-Hinshelwood mechanism.

Back to tab navigation

Publication details

The article was received on 27 Apr 2018, accepted on 07 Jun 2018 and first published on 07 Jun 2018


Article type: Paper
DOI: 10.1039/C8NJ02069H
Citation: New J. Chem., 2018, Accepted Manuscript
  •   Request permissions

    Removal of elemental mercury by titania sorbents loaded with cobalt ceria oxides from syngas

    X. Li, J. Zhou, Q. Zhou and J. Mao, New J. Chem., 2018, Accepted Manuscript , DOI: 10.1039/C8NJ02069H

Search articles by author

Spotlight

Advertisements