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gter_zhu木蟲 (小有名氣)
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Comparisons of catalysts containing micro-sized and nano-sized zeolite beta particles identified no significant differences in pore structure, crystalline phases, or interactions between metals and supports. The W-Ni catalysts presented much longer average slab lengths and greater average numbers of slab layers than the Mo-Ni catalysts. The Mo-Ni nano-sized zeolite catalyst had slightly longer slabs and fewer slab layers than the micro-sized zeolite, while W-Ni nano-sized zeolite showed much shorter slabs and fewer slab layers. The HDN and HDS activities of the Mo-Ni nano-sized zeolite catalyst were the same as those of the micro-sized zeolite catalysts,and the HDA activity was lower. For W-Ni series catalysts, the HDS,HDN, and HDA activities of the catalyst containing nano-sized zeolite beta were higher than those of the micro-sized zeolite catalyst. The two nano-sized zeolite catalysts gave higher liquid yields in hydrotreating LCO. |
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gter_zhu(金幣+22, 翻譯EPI+1):謝謝 2010-08-28 20:44:42
| 比較含有微米級和納米尺寸的β沸石催化劑顆�？梢源_定金屬與載體的孔隙結構，晶相并無顯著差異。目前，W - Ni催化劑比Mo-Ni催化劑擁有更長的平均長度和更多的板層。鉬鎳納米沸石催化劑與微米沸石相比，板長稍長，板層較少，而鎢鎳納米沸石板長更短和板層更少。鉬鎳納米沸石催化劑和微米沸石催化劑對HDN和HDS有同樣的活性，對HDA活性較低。 對于鎢鎳系列催化劑，加氫脫硫，脫氮，含有納米β沸石催化劑對HDAHDS,HDN, 的活性比微米級高。這兩個納米沸石催化劑在加氫時，會有較高液體的產量。 |
2樓2010-08-27 16:05:19
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