Catalytic behaviors of combined oxides derived from Mg/AlxFe1−x–Cl layered double hydroxides for H2S selective oxidation
作者： Xin Zhang , Zhuo Wang , Yuyin Tang , Nanli Qiao , Yang Li
DOI: 10.1039/C5CY00689A
关键词:
摘要: A series of Mg2AlxFe1−x LDH compounds was synthesized by a one-step method. The structural and chemical properties were studied various methods the derived oxides tested for H2S selective oxidation. It observed that iron species existed mainly in form isolated Fe3+ species, α-Fe2O3, γ-Fe2O3 Fe3O4. Moreover, nature varied with rise content. Significantly, catalysts exhibited high catalytic activity reasonable durability at relatively lower temperature higher GHSV. obeyed step-wise mechanism And chemically adsorbed oxygen on vacancies participated oxidation reaction played key role into elemental sulfur. catalyst deactivation due to deposit Additionally, small amount formed less active Fe2(SO4)3 also led deactivation.
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