Catalytic oxidation of nitrogen containing compounds for nitrogen determination

KARAKAŞ G., SEVİNÇ A.

CATALYSIS TODAY, vol.323, pp.159-165, 2019 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 323
  • Publication Date: 2019
  • Doi Number: 10.1016/j.cattod.2018.04.058
  • Journal Name: CATALYSIS TODAY
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.159-165
  • Keywords: Nitrogen determination, High temperature catalytic oxidation, Acetonitrile, Fe/Al2O3 catalytic combustion, TOTAL DISSOLVED NITROGEN, ORGANIC-CARBON, THERMAL-DECOMPOSITION, COMBUSTION, PYROLYSIS, UREA, REDUCTION, SEAWATER, PYRIDINE, AMMONIA
  • Middle East Technical University Affiliated: Yes

Abstract

The high temperature catalytic oxidation (HTCO) performance of Al2O3 supported Pt, Cu, Cu-Ce and Fe catalysts were systematically studied with a perspective of selective oxidation of nitrogenous compounds to nitric oxide for quantitative determination of bound nitrogen. The catalyst samples were prepared via impregnation and characterized by XRD and BET. In addition, temperature programmed reaction experiments with acetonitrile and oxygen were conducted to evaluate the catalytic activity and selectivity toward N-2, N2O and NO. The catalyst samples were also tested for model components; urea, EDTA, pyridine, glutamic acid and ammonium sulfate representing different functional groups.