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[1]刘彬,潘志刚,陶亚秋,等.低负载量MoS2/3A分子筛催化剂的制备及其加氢脱硫性能[J].南京工业大学学报(自然科学版),2014,36(03):52-56.[doi:10.3969/j.issn.1671-7627.2014.03.010]
 LIU Bin,PAN Zhigang,TAO Yaqiu,et al.Synthesis of low loading MoS2/3A molecular sieve catalysts and its hydrodesulphurization performance[J].Journal of NANJING TECH UNIVERSITY(NATURAL SCIENCE EDITION),2014,36(03):52-56.[doi:10.3969/j.issn.1671-7627.2014.03.010]
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低负载量MoS2/3A分子筛催化剂的制备及其加氢脱硫性能()
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《南京工业大学学报(自然科学版)》[ISSN:1671-7627/CN:32-1670/N]

卷:
36
期数:
2014年03期
页码:
52-56
栏目:
出版日期:
2014-05-20

文章信息/Info

Title:
Synthesis of low loading MoS2/3A molecular sieve catalysts and its hydrodesulphurization performance
文章编号:
1671-7627(2014)03-0052-05
作者:
刘彬潘志刚陶亚秋陶露露李成亮祝社民
南京工业大学 材料科学与工程学院,江苏 南京 210009
Author(s):
LIU BinPAN ZhigangTAO YaqiuTAO LuluLI ChengliangZHU Shemin
College of Materials Science and Engineering, Nanjing Tech University, Nanjing 210009, China
关键词:
MoS2 3A分子筛 加氢脱硫 催化剂 Co掺杂
Keywords:
MoS2 3A molecular sieve hydrodesulphurization catalysts Co-doping
分类号:
O643.32
DOI:
10.3969/j.issn.1671-7627.2014.03.010
文献标志码:
A
摘要:
以四硫代钼酸铵为前驱体,采用等体积浸渍法制备一系列MoS2和Co掺杂的3A分子筛催化剂,并采用X线衍射仪(XRD)、比表面积分析仪(BET)和扫描电子显微镜(SEM)对催化剂进行表征分析。以噻吩/环己烷为模拟油,考察催化剂的加氢脱硫(HDS)活性。结果表明:在免预硫化、低负载量(0.5%Mo)的条件下,MoS2/3A分子筛催化剂的催化活性为97%; Co掺杂的MoS2/3A分子筛催化剂,其HDS活性接近100%; 此外,在相同反应条件和制备方法下,MoS2/3A催化剂的催化活性均高于MoS2/γ-Al2O3和 MoS2/堇青石催化剂。由此表明,采用3A分子筛替代传统的γ-Al2O3和蜂窝堇青石作为载体不仅降低了MoS2的负载量,节约了成本,而且还有效地提高了催化剂的HDS活性; 且Co的掺杂进一步促进了催化剂活性的提高。
Abstract:
A series of MoS2 and Co doped MoS2/3A molecular sieve catalysts were prepared by impregnation using ammonium tetrathiomolybdate as precursor. The obtained catalysts were investigated by X-ray diffraction(XRD), specific surface area(BET)and scanning electron microscope(SEM). The hydrodesulphurization(HDS)evaluation was carried out with thiophene/cyclohexane as model oil on a fixed bed reactor. Results indicated that the synthesized catalysts exhibited high catalytic activity(97%)in the case of free prevulcanization and low loading(0.5%Mo). The hydrodesulphurization activity of Cobalt doped MoS2/3A molecular sieve catalyst reached up to nearly 100%. The synthesized catalysts presented much higher activity than the MoS2/γ-Al2O3 and cordierite honeycomb catalysts prepared with the similar method under the same reaction conditions. It suggested that the catalyst by the substitution of the conventional γ-Al2O3 and cordierite honeycomb carriers with 3A molecular sieves of low loaded MoS2 increased the hydrodesulphurization activity. The doping of Co further promoted the improvement of the catalyst activity.

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备注/Memo

备注/Memo:
收稿日期:2013-09-23
基金项目:国家自然科学基金(21107049); 江苏高校优势学科建设工程
作者简介:刘彬(1989—),男,江苏南京人,硕士生,主要研究方向为加氢脱硫、催化环保; 潘志刚(联系人),副研究员,E-mail:zg_pan@163.com..
更新日期/Last Update: 2014-05-20