Enhancement of desulfurization performance of nickel-based adsorbents by hydrogen reduction pretreatment
Enhancement of desulfurization performance of nickel-based adsorbents by hydrogen reduction pretreatment
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DOI：
10.1016/j.catcom.2011.03.022
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发表时间：
2011-07
影响因子：
3.7
通讯作者：
Huang Tang;Qiang Li;Ziyu Song;Wangliang Li;J. Xing
中科院分区：
文献类型：
--
作者：
Huang Tang;Qiang Li;Ziyu Song;Wangliang Li;J. Xing
采用离子交换法合成了镍基吸附剂。为提高镍基吸附剂的吸附性能，采用氢气还原法作为前处理工艺。氢气还原前处理可以提高镍基吸附剂的吸附容量。在优化的充分还原条件下，Ni-Y和Ni-MAS(介孔铝硅酸盐)的饱和容量分别提高了14.1%和65.2%。二苯并噻吩(DBT)对甲苯的吸附选择性也得到了提高。然而，与Ni-MAS不同的是，不足的还原处理会抑制Ni-Y的吸附性能。
Nickel based adsorbents are synthesized by ion-exchanging method. The hydrogen reduction method is used as a pretreatment process to improve the adsorptive ability of Nickel based adsorbents. Hydrogen reduction pretreatment can enhance the adsorptive capacities of Ni-adsorbents. Under the optimized sufficient reduction pretreatment, the saturated capacities of Ni–Y and Ni–MAS (Mesoporous Aluminosilicates) are increased by 14.1% and 65.2%, respectively. The adsorptive selectivity of dibenzothiophene (DBT) to toluene is also improved. However, it is found that insufficient reduction pretreatment can inhibit the adsorption performance of Ni–Y, which is different from Ni–MAS.