| AgY和AgMgY吸附剂吸附脱硫性能的考察 |
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| 引用本文： | 时雪梅,刘民,郭新闻,宋春山.AgY和AgMgY吸附剂吸附脱硫性能的考察[J].现代化工,2011,31(8):50-53. |
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| 作者姓名： | 时雪梅 刘民 郭新闻 宋春山 |
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| 作者单位： | 1. 大连理工大学化工学院催化化学与工程系,精细化工国家重点实验室,辽宁大连116024;美国宾夕法尼亚州立大学能源与地球环境工程系能源研究所,宾夕法尼亚16802
2. 大连理工大学化工学院催化化学与工程系,精细化工国家重点实验室,辽宁大连116024 |
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| 摘 要： | 采用液相离子交换法制备一系列AgY和AgMgY吸附剂。以噻吩的正辛烷溶液为模型化合物,在小型固定床上考察不同浓度硝酸银和硝酸镁制备的AgY单金属吸附剂和AgMgY双金属吸附剂的吸附脱硫性能。结果表明:当Ag+为0.30 mol/L、Mg2+为0.15 mol/L时,吸附剂的脱硫能力最佳。从穿透曲线可看出:每克AgY、AgMgY吸附剂的最大处理量分别为72、120mL汽油,AgMgY双金属吸附剂的脱硫性能明显好于AgY单金属吸附剂。通过X射线衍射仪(XRD)、X射线荧光光谱仪(XRF)、程序升温还原(TPR)和傅里叶变换红外光谱仪(FT-IR)等对吸附剂进行表征,发现Mg2+的存在(作为一种助剂)提高了吸附剂的L酸含量并使其还原性增强,更有利于吸附。经过再生后的吸附剂,其脱硫能力较新鲜吸附剂相比没有明显的下降。
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| 关 键 词： | 噻吩 AgY AgMgY 吸附脱硫 |
Investigation of adsorption desulfurization of gasoline by AgY and AgMgY adsorbents |
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| SHI Xue-mei,LIU Min,GUO Xin-wen,SONG Chun-shan.Investigation of adsorption desulfurization of gasoline by AgY and AgMgY adsorbents[J].Modern Chemical Industry,2011,31(8):50-53. |
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| Authors: | SHI Xue-mei LIU Min GUO Xin-wen SONG Chun-shan |
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| Affiliation: | SHI Xue-mei1,LIU Min1,GUO Xin-wen1,SONG Chun-shan1,2(1.State Key Laboratory of Fine Chemicals,Department of Catalysis Chemistry and Engineering,School of Chemical Engineering,Dalian University of Technology,Dalian 116024,China,2.Department of Energy and Geo-Environmental Engineering,Energy Institute,Pennsylvania State University,Pennsylvania 16802,USA) |
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| Abstract: | AgY and AgMgY adsorbents are prepared by liquid ion-exchange method.The effect of concentration of AgNO3 and Mg(NO3)2 on the adsorption desulfurization of AgY and AgMgY is investigated by small fixed bed using thiophene in the n-hexane as model gasoline.The results show that,the best adsorption desulfurization can be obtaind with 0.3 mol/L of the concentration of Ag+ solution and 0.15 mol/L of the concentration of Mg2+ solution.It also can be seen from the breakthrough curve that the maximum treatment capac... |
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| Keywords: | thiophene AgY AgMgY adsorption desulfurization |
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