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In this study, a microfibrous carrier consisting of 3 vol.% of 8 µm (diameter) glass fibers is used to entrap 45 vol.% of 150 to 250 µm (diameter) SiO2 support particulates. ZnO is then nanodispersed onto the support by impregnation at the loading of 17 wt.%. At equivalent bed volumes, ZnO/SiO2-entrapped materials provide twofold longer breakthrough times for H2S (with a 67% reduction in sorbent loading)...
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