化工进展 ›› 2021, Vol. 40 ›› Issue (7): 3909-3914.DOI: 10.16085/j.issn.1000-6613.2020-1707

• 材料科学与技术 • 上一篇    下一篇

Sn和Zn对重芳烃轻质化NiMo/β催化剂性能的影响

刘航1,2(), 臧甲忠1,2(), 范景新1,2, 郭春垒1,2, 靳凤英1,2, 赵训志1,2, 马明超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,天津 300131
  • 收稿日期:2020-08-26 修回日期:2021-01-25 出版日期:2021-07-06 发布日期:2021-07-19
  • 通讯作者: 臧甲忠
  • 作者简介:刘航(1988—),男,硕士研究生,工程师,研究方向为芳烃化工催化剂的开发与应用。E-mail:lhsdut@163.com
  • 基金资助:
    中国海洋石油集团公司项目(CNOOC-KJ 135FZDXM 00 LH 009 ZS-2016)

Effects of Sn and Zn on the properties of heavy aromatic to light aromatic NiMo/β catalyst

LIU Hang1,2(), ZANG Jiazhong1,2(), FAN Jingxin1,2, GUO Chunlei1,2, JIN Fengying1,2, ZHAO Xunzhi1,2, MA Mingchao1,2   

  1. 1.Cener Tech Tianjin Chemical Research and Design Institute Company Limited, China National Offshore Oil Corporation, Tianjin 300131, China
    2.Tianjin Refinery Catalytic Technology Engineering Center, Tianjin 300131, China
  • Received:2020-08-26 Revised:2021-01-25 Online:2021-07-06 Published:2021-07-19
  • Contact: ZANG Jiazhong

摘要:

以β分子筛为载体,采用等体积浸渍法制备了三种催化剂NiMo/β、SnNiMo/β和ZnNiMo/β,采用XRD、NH3-TPD、H2-TPR、H2-TPD和TG-DTG对催化剂进行表征。结果表明,第三金属Sn和Zn的加入减弱了催化剂的酸性质,促进了Mo与载体之间的相互作用,提高了催化剂吸附H2的能力,降低了反应过程的积炭量。采用某炼厂重整C10+重芳烃对三种催化剂进行评价,结果表明第三金属Sn和Zn的加入均显著提高了催化剂的稳定性和液收,且含Zn的催化剂具有最优的轻质化性能。

关键词: 重芳烃, 轻质化, 催化剂, 分子筛, 加氢, 锡,

Abstract:

Three catalysts, NiMo/β, SnNiMo/β and ZnNiMo/β were prepared by incipient-wetness impregnation method with β zeolite as the support. The catalysts were characterized by XRD, NH3-TPD, H2-TPR, H2-TPD and TG-DTG. The results show that the addition of Sn and Zn weaken the acid properties of the catalyst, promoted the interaction between Mo and the support, improved the H2 adsorption capacity of the catalyst, and reduced the amount of carbon deposition in the reaction process. The three catalysts were evaluated by using reforming C10+ heavy aromatics. The results show that the addition of Sn and Zn significantly improved the stability and liquid yield, and the catalyst containing Zn had the best heavy aromatics to light aromatics properties.

Key words: heavy aromatics to light aromatics, catalyst, zeolite, hydrogenation, stannum(Sn), zinc(Zn)

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