The effects of doping alumina with silica in alumina-supported NiO catalysts for oxidative dehydrogenation of ethane
作者: Justin L. ParkKelsey A. CanizalesMorris D. ArgyleBrian F. WoodfieldKara J. Stowers
作者单位: 1Department of Chemistry and Biochemistry, Brigham Young University, C100 Benson Building, Provo, UT, 84602, United States
2Department of Chemical Engineering, Brigham Young University, 330 Engineering Building, Provo, UT, 84602, United States
刊名: Microporous and Mesoporous Materials, 2020, Vol.293
来源数据库: Elsevier Journal
DOI: 10.1016/j.micromeso.2019.109799
关键词: Oxidative dehydrogenationNickelAluminaSilicaCatalysis
英文摘要: Abstract(#br)The production of ethylene via the oxidative dehydrogenation of ethane is well-documented as an energy efficient process. Alumina-supported NiO catalysts make the oxidative dehydrogenation of ethane more selective to ethylene and operate at low reaction temperatures (<500 °C). The addition of silica to the alumina supports of these NiO catalysts formed higher amounts of the NiAl 2 O 4 spinel phase and had adjustable acidities and surface areas with calcination temperature, leading to increases in ethylene productivity. A 5 wt% silica-doped alumina support calcined at 1100 °C with 16 wt% NiO exhibited low acidity and a stable, low surface area, resulting in an ethylene productivity of 13.6 μmol ethylene /s·g nickel or 1.32 × 10 −2 μmol ethylene /s·m 2 at 500 °C.
全文获取路径: Elsevier  (合作)
影响因子:3.365 (2012)

  • alumina 矾土
  • silica 硅土
  • doping 掺杂
  • supported 支承的
  • ethane 乙烷
  • effects 海员自身物品
  • oxidative 氧化的