磁载体MoS2催化剂制备及其重油减黏  

Preparation of a magnetically supported MoS2 catalyst and its heavy oil viscosity-reducing performance

作　　者：朱向阳 乔栋 毕秦岭[4] 邢慧芳 倪善 杨良嵘 刘会洲[1,2] ZHU Xiangyang;QIAO Dong;BI Qinling;XING Huifang;NI Shan;YANG Liangrong;LIU Huizhou(CAS Key Laboratory of Green Process and Engineering,Institute of Process Engineering,Chinese Academy of Sciences,Beijing 100190,China;University of Chinese Academy of Sciences,Beijing 100049,China;China University of Petroleum,Beijing 102249,China;PetroChina Company Limited Petrochemical Research Institute,Beijing 102206,China)

机构地区：[1]中国科学院绿色过程与工程重点实验室(中国科学院过程工程研究所),北京100190 [2]中国科学院大学,北京100049 [3]中国石油大学,北京102249 [4]中国石油天然气股份有限公司石油化工研究院,北京102206

出　　处：《化工进展》2020年第S01期170-174,共5页Chemical Industry and Engineering Progress

基　　金：国家自然科学基金(21922814,21676273,U1507203,31961133019,21921005);中科院青年创新促进会(GrantNos.2016043);北京市自然科学基金(2194086);中石油合作项目(PRIKY17094)。

摘　　要：以SiO2/Fe3O4为载体,MoS2为活性组分,通过水热法制备出超顺磁性MoS2/SiO2/Fe3O4催化剂,并对催化剂进行XRD、VSM、BET、FTIR等表征。结果表明:催化剂有效担载活性组分并且具有优异的磁学性能,SiO2包覆不仅能保护磁核,而且显著增大催化剂的比表面积。以常压渣油为原料,系统考察了催化剂的减黏性能。发现所制备的磁载体催化剂减黏效果高于商业二硫化钼及羰基钼,提升反应温度能达到更好的减黏效果。此外,在外加磁铁的作用下,催化剂可以方便回收以达到再利用的效果。将具有优异磁学性能的纳米粒子与具有催化性能的活性组分相结合制备的磁性纳米催化剂,为开发重油改质催化剂提供了新的思路。Here the superparamagnetic MoS2/SiO2/Fe3O4 catalyst were prepared by hydrothermal method with SiO2/Fe3O4 as carrier and MoS2 as active constitutes.The as-synthesized samples were characterized by XRD,VSM,BET and FTIR.The results show that the catalyst has effectively loading the active component and has excellent magnetic properties,the coating layer of SiO2 can not only protect the magnetic core,but also significantly increase BET specific surface area.The viscosity-reducing performance of the catalyst was systematically investigated with atmospheric residue.It was found that the prepared catalyst can effectively reduce the viscosity of residual,which is better than commercial MoS2 and Mo(CO)6.Increasing reaction temperature can also achieve better visbreaking effect.Besides,the catalyst can be separated under the external magnetic field after the reaction.These results provide new insights into the development of recyclable catalyst that integrate the magnetic and active component in the treatment of heavy oil.

关 键 词：磁性 催化剂 二硫化钼(MoS2) 石油 黏度 纳米粒子 

分 类 号：S216.4[农业科学—农业机械化工程]