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Ordered mesoporous Cu-ZnO-Al_2O_3 adsorbents for reactive adsorption desulfurization with enhanced sulfur saturation capacity 被引量:6
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作者 YaqingLiua YuanPanb +2 位作者 HongyingWanga YunqiLiua chenguangliua 《Chinese Journal of Catalysis》 SCIE EI CAS CSCD 北大核心 2018年第9期1543-1551,共9页
To enhance sulfur adsorption and reactive activity, ordered mesoporous Cu-ZnO-Al2O3 adsorbents were prepared by a novel one-pot evaporation-induced self-assembly strategy using P123 as a structure-directing agent and ... To enhance sulfur adsorption and reactive activity, ordered mesoporous Cu-ZnO-Al2O3 adsorbents were prepared by a novel one-pot evaporation-induced self-assembly strategy using P123 as a structure-directing agent and ethanol as the solvent for reactive adsorption desulfurization. The metal oxide precursor molecules around P123 micellized, and self-assembly simultaneously occurred during evaporation from an ethanol solution at 60 °C, leading to the formation of the p6 mm hexagonal symmetry mesoporous structure. Characterization results prove that the Cu-ZnO-Al2O3 adsorbents possess an ordered mesoporous structure with high thermal stability, large surface area(386–226 m2/g), large pore volume(0.60–0.46 cm3/g), and good dispersion of ZnO and Cu, which is beneficial for transforming S-compounds to ZnO. The sulfur saturation capacity of the ordered-mesoporous-structure Cu-ZnO-Al2O3 adsorbents is larger(49.4 mg/g) than that of the unordered mesoporous structure(13.5 mg/g). 展开更多
关键词 Cu‐ZnO‐Al2O3Or deredmesoporous structure One‐potevaporation‐induced self‐assembly Reactiveads orptiondesul furization Sulfursaturation capacity
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