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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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fecral丝网负载fau沸石膜的制备及其催化性能
, PP. 558-563
Keywords: fau沸石膜,fecral丝网,催化裂解,吸热燃料
Abstract:
？采用水热法制备fecral丝网负载fau沸石膜,考察了合成液老化、载体预涂晶种以及晶种液中添加聚乙烯醇(pva)等因素的影响,评价了fecral丝网负载fau沸石膜对模型吸热燃料正辛烷裂解的催化活性。结果表明,载体表面预涂y分子筛晶种后有助于增加载体表面分子筛负载量,采用老化后的合成液,效果更显著,并且更易在金属丝上生长出一层连续致密的fau沸石膜。在相同水热合成条件下,载体表面用含pva的晶种液预涂晶种后,可增加分子筛负载量。正辛烷在fecral丝网负载fau沸石膜上的初始裂解转化率(7.2%～13.2%,500℃)高于其在空白载体上的裂解转化率(4.4%),fau沸石膜的初始催化活性不仅与载体表面分子筛负载量有关,也与分子筛膜的形貌有关。
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