Li-doped MgO From Different Preparative Routes for the Oxidative Coupling of Methane

Arndt S., Simon U., Heitz S., Berthold A., Beck B., Goerke O., ...More

TOPICS IN CATALYSIS, vol.54, no.16-18, pp.1266-1285, 2011 (SCI-Expanded, Scopus)

  • Publication Type: Article / Article
  • Volume: 54 Issue: 16-18
  • Publication Date: 2011
  • Doi Number: 10.1007/s11244-011-9749-z
  • Journal Name: TOPICS IN CATALYSIS
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.1266-1285
  • Keywords: Li/MgO, [Li+O-], Oxidative coupling of methane, OCM, Wet impregnation, Precipitation, Single source precursors, Mixed milling, Deactivation, PROMOTED MGO, ORGANOMETALLIC PRECURSORS, ACTIVE-SITES, LITHIUM, TEMPERATURE, CENTERS, ETHANE, NANOPARTICLES, ACTIVATION, SURFACE
  • Akdeniz University Affiliated: No

Abstract

Li-doped MgO was prepared on different preparative routes and with different loadings. The catalytic activity was found to decay for all catalysts for 40 h time on stream. A detailed structural analysis of 0.5 wt% Li-doped MgO showed heavy losses of Li, reduced surface area and grain growth. A correlation between these factors and the deactivation could not be found. The reaction temperature and the flow rate were found to be the main deactivation parameters.

Li-doped MgO was prepared on different preparative routes and with different loadings. The catalytic activity was found to decay for all catalysts for 40 h time on stream. A detailed structural analysis of 0.5 wt% Li-doped MgO showed heavy losses of Li, reduced surface area and grain growth. A correlation between these factors and the deactivation could not be found. The reaction temperature and the flow rate were found to be the main deactivation parameters.