Novel Mesoporous Nanocomposite WOx-Silicate Acidic Catalysts: Ethylene and Diethylether from Ethanol

Varisli D., DOĞU T., DOĞU G.

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, vol.48, no.21, pp.9394-9401, 2009 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 48 Issue: 21
  • Publication Date: 2009
  • Doi Number: 10.1021/ie8008154
  • Journal Name: INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.9394-9401
  • Middle East Technical University Affiliated: Yes

Abstract

Solid acid catalysts are extensively used in a number of industrially important catalytic reactions. Here, water-insoluble novel mesoporous solid acid catalysts, with a unique structure composed of WOx nanorods and W nanoballs within an amorphous silicate lattice, were synthesized following a one-pot hydrothermal route. using silicotungstic acid (STA) as the active component. Surface area of these catalysts ire more than 2 orders of magnitude higher than that of pure STA, and they showed very high activity for the simultaneous production of ethylene and diethylether (DEE), which is an attractive transportation fuel alternate, from a nonpetroleum feedstock, namely ethanol. Depending upon the operating conditions, ethylene or DEE selectivities approaching 1 0 or 0 8 were obtained, respectively.