石油炼制与化工

• 催化剂 • 上一篇    下一篇

Ni-W/P-SBA-15催化剂加氢脱芳烃研究

王宝宇,沈健,王彦刚   

  1. 辽宁石油化工大学石油化工学院
  • 收稿日期:2010-11-12 修回日期:2011-03-15 出版日期:2011-07-12 发布日期:2011-07-12
  • 通讯作者: 王宝宇

STUDY ON THE HYDRODEAROMATIZATON PERFORMANCE OF Ni-W/P-SBA-15 CATALYST

  • Received:2010-11-12 Revised:2011-03-15 Online:2011-07-12 Published:2011-07-12

摘要: 以P-SBA-15为载体,担载Ni、W活性组分制备了加氢脱芳烃催化剂。用XRD、BET对该催化剂进行表征。结果表明,该催化剂仍然具有二维晶相结构,较大的比表面积和孔体积及孔径。以含萘质量分数为7%的正十二烷溶液为原料对该催化剂进行了加氢脱芳烃性能研究。结果表明,在磷的负载量为2%(质量分数)时,催化剂具有最佳的脱芳烃性能。脱芳烃的最优工艺条件为:反应温度为320 ℃,压力为4.0 MPa,氢油体积比600,体积空速2.0 h-1。在此条件下,模型化合物的脱芳率可达88.4%。

关键词: 加氢脱芳烃, 催化剂, SBA-15, 磷酸, 工艺条件

Abstract: A hydrodearomatization (HDA) catalyst was prepared using phosphoric acid modified SBA-15 molecular sieve as carrier and Ni-W as active metals. The characterization results of XRD and BET show that this catalyst possesses two-dimensional crystal structure and the characteristics of meso-porous material. The HDA reaction performance of the catalyst was investigated using dodecane containing 7% naphthalene as feed. Results showed that catalyst having a phosphor mass fraction of 2% exhibited the optimal HDA performance and under the optimum conditions of a reaction temperature of 320 ℃, a reaction pressure of 4.0 MPa, a H2/oil volume ratio of 600 and a space velocity of 2.0 h-1, the HDA rate of the model compound reached 88.4%.

Key words: Hydrodearomatization, Catalyst, SBA-15, phosphoric acid, Process conditions