Remarkable improvement in adsorptive denitrogenation of model fossil fuels with CuCl/activated carbon, prepared under ambient condition
Remarkable improvement in adsorptive denitrogenation of model fossil fuels with CuCl/activated carbon, prepared under ambient condition
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DOI：
10.1016/j.cej.2015.05.035
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发表时间：
2015-11
影响因子：
15.1
通讯作者：
Imteaz Ahmed;S. Jhung
中科院分区：
文献类型：
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作者：
Imteaz Ahmed;S. Jhung
负载CuCl的活性炭（AC）首次被用于从模型化石燃料中去除有害的含氮化合物（NCC）。CuCl/AC是通过在常温下用Na 2SO 3还原CuCl 2/AC得到的。以喹啉（QUI）、吲哚（IND）和苯并噻吩（BT）为吸附剂，考察了它们的吸附行为. QUI和IND分别用于代表基本净捐助国和中性净捐助国。另一方面，BT是一种含硫化合物（SCC），其用于模拟商业燃料并研究NCC相对于SCC的吸附选择性。尽管CuCl/AC的表面积低于AC，但CuCl/AC对QUI和IND的吸附容量比原始AC增加了近100%。相反，CuCl 2/AC（不使用Na 2SO 3加载）上的吸附量QUI和IND略低于吸附量的原始AC。CuCl/AC对NCCs吸附性能的改善可能是由于Cu+物种与NCCs之间的π络合作用。
CuCl-loaded activated carbons (ACs) have been used for the first time to remove harmful nitrogen-containing compounds (NCCs) from model fossil fuels. The CuCl/ACs were obtained by reducing CuCl2/ACs with Na2SO3under ambient conditions. A mixture of quinoline (QUI), indole (IND) and benzothiophene (BT) was used to investigate the adsorption behaviors. QUI and IND were used to represent basic and neutral NCCs, respectively. On the other hand, BT is a sulfur-containing compound (SCC) that was used to mimic commercial fuels and investigate the selectivity of adsorption for NCCs over SCCs. The adsorption capacities of CuCl/AC for QUI and IND increased by almost 100% from that of pristine AC, even though the surface area of the CuCl/AC was lower than that of the AC. On the contrary, the adsorbed amounts over CuCl2/AC (loaded without using Na2SO3) for QUI and IND were slightly lower than the adsorbed amounts over the virgin AC. The improved adsorptive performances of CuCl/AC for NCCs might be due to π-complexation between Cu+species and NCCs.