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| NiMo/ZrO_2加氢脱硫催化剂的研究 | |
| 引用本文： | 贾美林,P Afanasiev,M Vrinat,李文钊,徐恒泳,葛庆杰.NiMo/ZrO_2加氢脱硫催化剂的研究[J].石油化工,2005,34(3):218-221. |
| 作者姓名： | 贾美林 P Afanasiev M Vrinat 李文钊 徐恒泳 葛庆杰 |
| 作者单位： | 1. 中国科学院,大连化学物理研究所,辽宁,大连,116023;内蒙古师范大学,化学与环境科学学院,内蒙古,呼和浩特,010022 2. Institute de Recherches sur la Catalyse, 2 Avenue Einstein, Villeurbanne Cedex 69626, France 3. 中国科学院,大连化学物理研究所,辽宁,大连,116023 |
| 基金项目： | 中法先进合作研究计划项目(PRAE00.02)。 |
| 摘 要： | 采用共浸法制备了未经焙烧直接硫化的NiMo/ZrO2(550)、NiMo/ZrO2(650)催化剂及550℃焙烧后再硫化的NiMo/ZrO2(550)-1催化剂,在连续流动微反装置上考察了NiMo/ZrO2系列催化剂对噻吩加氢脱硫反应的催化活性,并对催化剂进行了X射线光电子能谱(XPS)和Raman光谱表征。表征结果显示,以四方相ZrO2为载体的NiMo/ZrO2(650)催化剂,由于被硫化的更完全,催化活性高于以无定形相ZrO2为载体的NiMo/ZrO2(550)催化剂,说明载体的结构影响催化剂的催化活性;550℃焙烧后的NiMo/ZrO2(550)-1催化剂的催化活性低于未经焙烧直接硫化的NiMo/ZrO2(550)催化剂,这是由于高温焙烧增加了活性组分和载体之间的相互作用,降低了催化剂的硫化程度,进而降低了其催化活性,说明这种强相互作用不利于提高催化剂的催化活性。 |
| 关 键 词： | 镍 钼 催化剂 二氧化锆 噻吩 加氢脱硫 |
| 文章编号： | 1000-8144(2005)03-0218-04 |
| 修稿时间： | 2004年11月8日 |
Study of NiMo/ZrO2 Catalysts for Hydrodesulfurization |
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| Jia Meilin,P Afanasiev,M Vrinat,LI Wenzhao,Xu Hengyong,Ge Qingjie.Study of NiMo/ZrO2 Catalysts for Hydrodesulfurization[J].Petrochemical Technology,2005,34(3):218-221. | |
| Authors: | Jia Meilin P Afanasiev M Vrinat LI Wenzhao Xu Hengyong Ge Qingjie |
| Affiliation: | Jia Meilin 1,3,P Afanasiev2,M Vrinat2,Li Wenzhao1,Xu Hengyong1,Ge Qingjie1 |
| Abstract: | Several hydrodesulfurization catalysts,NiMo/ZrO_2(550),NiMo/ZrO_2(650) and NiMo/ZrO_2( 550)-1,were prepared by co-impregnation,with or without calcinations,followed by sulfidation,to study influences of support types and preparation conditions on their catalytic activities.Thiophene hydrodesulfurization(HDS)was taken as probe reaction to investigate catalyst performance.The reaction was carried out in a continuous flow microreactor system.Catalysts were characterized by Raman and XPS spectrum.Catalyst NiMo/ZrO_2(650)showed higher activity than NiMo/ZrO_2(550).The ZrO_2 support of former was in tetragonal phase while the latter amorphous.In case of NiMo/ZrO_2(550)-1 strong interaction between support and active constituent existed induced by high calcination temperature.The above interaction conseguently decreasedn(S)∶n(Ni+Mo) of catalyst and resulted lower catalytic activity. |
| Keywords: | nickel molybdenum catalyst zirconium oxide thiophene hydrodesulfurization |
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