石油炼制与化工 ›› 2019, Vol. 50 ›› Issue (11): 50-55.

• 基础研究 • 上一篇    下一篇

FCC汽油砷化物对CoMo/Al2O3加氢脱硫催化剂活性的影响

宋绍彤1,钟海军1,吕忠武1,闫小康1,顾明2,葛少辉1   

  1. 1. 中国石油石油化工研究院
    2. 中国石油辽阳石化分公司油化厂
  • 收稿日期:2019-04-10 修回日期:2019-07-09 出版日期:2019-11-12 发布日期:2019-11-29
  • 通讯作者: 葛少辉 E-mail:geshaohui@petrochina.com.cn
  • 基金资助:
     

EFFECT OF ARSENIDE IN FCC GASOLINE ON THE PERFORMANCE OF CoMo/Al2O3 HDS CATALYST

    

  1.  
  • Received:2019-04-10 Revised:2019-07-09 Online:2019-11-12 Published:2019-11-29
  • Supported by:
     

摘要: 采用三苯基砷和三乙基砷作为砷化物配制高砷模拟油,用于对CoMo/Al2O3加氢脱硫催化剂进行强制积砷中毒处理,采用BET,XRD,XRF,Py-IR等分析手段对砷中毒前后催化剂的物化性质进行表征,对中毒前后催化剂的加氢活性进行评价,并对砷中毒催化剂的失活温度进行考察。结果表明,砷化物使加氢催化剂的强酸位消失,B酸位和L酸位总量明显降低,催化剂活性位减少,造成催化剂加氢活性降低。

关键词: 加氢脱硫催化剂, 砷中毒, 三苯基砷, 三乙基砷, 失活温度

Abstract: The influence of arsenic compounds on the HDS activity of CoMo/Al2O3 catalyst was tested using a model oil with high content of Triphenyl arsenic or Triethyl arsenic as arsenic source. The catalyst was conducted the spiked treatment of arsenic. XRF, BET, XRD and Py-IR were used to characterize the physicochemical properties of CoMo/Al2O3catalysts before and after arsenic poisoning. The hydrogenation activity of CoMo/Al2O3 before and after arsenic poisoning as well as the deactivation temperature of the fouled catalyst was evaluated. The results indicated that after arsenic poisoning, the hydrogenation activity of CoMo/Al2O3 decreased significantly due to the loss of B and L acidities of the catalysts.

Key words: hydrodesulfurization catalyst, arsenic poisoning, triphenyl arsenic, triethyl arsenic, deactivation temperature

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