Metal oxide/TiO2 nanocomposites as efficient adsorbents for relatively high temperature H2S removal
作者： Shahin Heydari Orojlou , Behrooz Zargar , Saadat Rastegarzadeh
DOI: 10.1016/J.JNGSE.2018.09.016
关键词:
摘要: Abstract Hydrogen sulfide is a highly toxic and corrosive gas that present in different environments such as hot coal gases. In order to have clean atmosphere prolong the life of industrial equipment metallic catalysts, it necessary remove or decrease concentration this feedstocks sub parts per million before their use. To accomplish task, various nanocomposite sorbents were studied for H2S removal at relatively high temperature. end, NiO/TiO2, CuO/TiO2, CoO/TiO2 nanocomposites prepared through wet impregnation. X-ray Diffraction (XRD), Field Emission Scanning Electron Microscopy (FESEM) equipped with Energy-dispersive spectroscopy (EDS) N2 adsorption/desorption used characterizing nano sorbents. The adsorption reaction experiments performed temperature effects promoter TiO2 ratio, sorbent mass desulfurization studied. results showed 480 °C, CoO promoted shows longer breakthrough time followed by NiO/TiO2 CuO/TiO2 best obtained using ratio 2.5/5 among ratios used. By decreasing performing 400 °C, nickel oxide better than suggesting lower sulfidation activity
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