A kinetic study on oxidation of ferrous sulfide (FeS) in mixtures of CO 2 and H 2 O
作者: Weizhi LvDunxi YuJianqun WuXin YuYifan DuHong YaoMinghou Xu
作者单位: 1State Key Laboratory of Coal Combustion, Huazhong University of Science and Technology, Wuhan 430074, China
刊名: Proceedings of the Combustion Institute, 2017, Vol.36 (2), pp.2173-2180
来源数据库: Elsevier Journal
DOI: 10.1016/j.proci.2016.09.018
关键词: Oxy-fuel/oxy-steam combustionFerrous sulfideOxidationKineticsMixtures of CO 2 and H 2 O
原始语种摘要: Abstract(#br)The high levels of CO 2 and H 2 O in oxy-fuel/oxy-steam combustion are expected to have important effects on the oxidation of ferrous sulfide, which is critical to the understanding of ash deposition. In this work, the kinetics of ferrous sulfide oxidation in CO 2 , H 2 O, or the mixtures of CO 2 and H 2 O are explored on a purposely-designed thermo-gravimetric reactor (TGR). Based on the data obtained from TGR, XRD and SEM, the roles of CO 2 and H 2 O in the oxidation of ferrous sulfide are elucidated. It is found that pyrrhotite (FeS 1+ x ) transformation in CO 2 , H 2 O, or their mixtures is dominated by the oxidation of ferrous sulfide (FeS). The adsorption and desorption elemental reactions of CO 2 or H 2 O on ferrous sulfide are essentially the same. For all cases, the...
全文获取路径: Elsevier  (合作)
影响因子:2.374 (2012)

  • oxidation 氧化
  • ferrous 亚铁的
  • kinetics 动力学
  • sulfide 硫化物
  • mixtures 混合料
  • constant 常数
  • reactor 反应器
  • reaction 反酌
  • combustion 燃烧
  • adsorption 吸附