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Ni-Mo catalysts were introduced by incipient wetness impregnation of the synthesized MCM-41 sieve. Aqueous solutions of Ni(CH3COO)2· 4H2O and (NH4)6Mo7O24· 4H2Owere used for the catalysts Ni-Mo/MCM-41. The MCM-41 was impregnated first with the required amount of aqueous solution of (NH4)6Mo7O24· 4H2O and dried at 1200C for 14 h；the dried material was calcined at 4500 for 6 h and at 5000C for 2 h in air. Then, the Mo/MCM-41 was impregnated with the required amount of Ni(CH3COO)2 · 4H2O, also dried at 1200 and calcined at 4500 for 6 h and at 500 0C for 2 h in air. In the case of Mo/MCM-41, MoO3 content was of 12 wt.% and, in the case of Ni-Mo/MCM-41 catalyst, the promoted NiO content was varied at 3, 6 and 9 wt.%,respectively. These catalysts are further referred to as Ni-Mo-0.25/MCM-41, Ni-Mo-0.50/MCM-41 and Ni-Mo-0.75/ MCM-41, respectively, where 0.25, 0.50 and 0.75 are the Ni/Mo atomic ratio. 文献 第一页右下方第一段。 On the other hand, for the hydrogenation, the catalyst bed of approximately 30 mm length was packed between two quartz wool layers in the center of the reactor. 第二页左边上数14行。 如果这传的格式有错误，大神们可以下载文献查看。 |
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2017-01-17 14:06:03, 135.81 K
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Ni-Mo catalysts were introduced by incipient wetness impregnation of the synthesized MCM-41 sieve. Aqueous solutions of Ni(CH3COO)2· 4H2O and (NH4)6Mo7O24· 4H2Owere used for the catalysts Ni-Mo/MCM-41. The MCM-41 was impregnated first with the required amount of aqueous solution of (NH4)6Mo7O24· 4H2O and dried at 1200C for 14 h；the dried material was calcined at 4500 for 6 h and at 5000C for 2 h in air. Then, the Mo/MCM-41 was impregnated with the required amount of Ni(CH3COO)2 · 4H2O, also dried at 1200 and calcined at 4500 for 6 h and at 500 0C for 2 h in air. In the case of Mo/MCM-41, MoO3 content was of 12 wt.% and, in the case of Ni-Mo/MCM-41 catalyst, the promoted NiO content was varied at 3, 6 and 9 wt.%,respectively. These catalysts are further referred to as Ni-Mo-0.25/MCM-41, Ni-Mo-0.50/MCM-41 and Ni-Mo-0.75/ MCM-41, respectively, where 0.25, 0.50 and 0.75 are the Ni/Mo atomic ratio. 通过合成MCM-41分子筛的等体积浸渍法来引入Ni-Mo催化剂。将Ni(CH3COO)2· 4H2O和(NH4)6Mo7O24· 4H2O的水溶液用于催化剂 Ni-Mo/MCM-41。首先，用所需量的 (NH4)6Mo7O24· 4H2O 的水溶液浸渍MCM-41，并在120℃下干燥14h；将干燥的材料在空气中于450℃下煅烧6h，并在500℃下煅烧2h。然后，用所需量的Ni(CH3COO)2 · 4H2O浸渍Mo/MCM-41，也在120℃下干燥，并在空气中于450℃下煅烧6h，并在500℃下煅烧2h。在Mo/MCM-41的情况下，MoO3含量是 12 wt.%。在Ni-Mo/MCM-41催化剂的情况下，促进的NiO 含量分别在 3, 6 和9 wt.%下变化。这些催化剂还分别称作 Ni-Mo-0.25/MCM-41, Ni-Mo-0.50/MCM-41 和Ni-Mo-0.75/ MCM-41, 其中0.25, 0.50 和 0.75 是 Ni/Mo 原子比例。 文献 第一页右下方第一段。 On the other hand, for the hydrogenation, the catalyst bed of approximately 30 mm length was packed between two quartz wool layers in the center of the reactor. 另一方面，对于氢化而言，在反应器的中央，将约30mm长的催化剂床填充在两个石英棉层之间。 |
2楼2017-02-02 11:27:26