无机盐工业
主管:中海油天津化工研究设计院有限公司
主办:中海油天津化工研究设计院有限公司
   中海油炼油化工科学研究院(北京)有限公司
   中国化工学会无机酸碱盐专业委员会
ISSN 1006-4990 CN 12-1069/TQ

无机盐工业 ›› 2019, Vol. 51 ›› Issue (7): 85-88.doi: 10.11962/1006-4990.2019-0002

• 无机盐工业 • 上一篇    下一篇

EDTA/CA对加氢处理催化剂性能的影响

朱金剑1,2,张景成1,2,南 军1,2,张国辉1,2,肖 寒1,2,张玉婷1,2,孙彦民1,2,于海斌1,2   

  1. 1.中海油天津化工研究设计院有限公司,天津 300131;2.天津市炼化催化技术工程中心
  • 出版日期:2019-07-23 发布日期:2019-08-23
  • 作者简介:朱金剑(1986— ),男,硕士研究生,工程师,研究方向为炼油加氢催化剂;E-mail:zjjkaoyan2009@163.com。

Effect of EDTA/CA on properties of hydrotreating atalysts

Zhu Jinjian1,2,Zhang Jingcheng1,2,Nan Jun1,2,Zhang Guohui1,2,Xiao Han1,2,Zhang Yuting1,2,Sun Yanmin1,2,Yu Haibin1,2   

  1. 1.CenerTech Tianjin Chemical Research & Design Institute Co.,Ltd.,Tianjin 300131,China;2.Tianjin Refining Catalytic Technology Engineering Center
  • Online:2019-07-23 Published:2019-08-23

摘要: 以碱式碳酸镍、三氧化钼、磷酸为原料制备钼镍磷浸渍液,并在浸渍液中分别添加乙二胺四乙酸、柠檬酸、柠檬酸和乙二胺四乙酸,制备出含单一络合剂及双络合剂的加氢处理催化剂。通过XRD、HRTEM、H2-TPR、NH3-TPD等对其进行表征,发现双络合剂催化剂与单络合剂催化剂相比,降低了活性金属与载体的相互作用力,有利于形成更多的II类活性相,且片晶长度更长,片晶层数更多;同时又具有较大的比表面积和孔容,酸量及中强酸也得到增加。因此,双络合剂催化剂具有更高的加氢脱硫、脱氮活性。

关键词: 加氢精制;EDTA;CA;络合浸渍;加氢处理催化剂

Abstract: Mo-Ni-P impregnating solution was prepared by using basic nickel carbonate,molybdenum trioxide and phosphoric acid as raw materials.EDTA,CA and EDTA-CA were added to the impregnating solution to prepare hydrogenation catalysts that containing single complexing agent and double complexing agent.The catalysts were characterized by XRD,HRTEM,H2-TPR and NH3-TPD.It was found that the catalysts containing double complexing agents significantly reduced the interaction force between the active metals and the support compared with the single complexing agent catalysts,which was conducive to the formation of more ClassⅡ active phase, and the length of the platelet was longer,the number of platelets was more.At the same time,it could keep a larger specific surface area and pore volume,and the acid amount and medium-strong acid were also increased.Therefore,the EDTA-CA catalyst has higher HDS and HDN activity.

Key words: hydrofining;EDTA;CA;complex impregnation;hydrotreating atalysts

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