石油炼制与化工 ›› 2019, Vol. 50 ›› Issue (1): 31-36.

• 催化剂 • 上一篇    下一篇

工艺条件对费-托蜡加氢裂化催化剂反应性能的影响

程秋香,韩磊,刘树伟,黄传峰   

  1. 陕西延长石油(集团)有限责任公司碳氢高效利用技术研究中心
  • 收稿日期:2018-05-03 修回日期:2018-07-28 出版日期:2019-01-12 发布日期:2019-01-29
  • 通讯作者: 程秋香 E-mail:cheng090206@126.com
  • 基金资助:
     

EFFECT OF PROCESS CONDITIONS ON PERFORMANCE OF FISCHER-TROPSCH WAX HYDROCRACKING CATALYST

    

  1.  
  • Received:2018-05-03 Revised:2018-07-28 Online:2019-01-12 Published:2019-01-29
  • Supported by:
     

摘要: 采用等体积浸渍法,制备了以USY-Al2O3为载体、Ni-W为金属组分的加氢裂化催化剂,并用X-射线衍射、吡啶吸附红外漫反射光谱、低温N2吸附-脱附等对催化剂进行表征。利用单因素变量法,分别考察了温度、空速、氢油比以及压力等工艺条件对费-托合成蜡加氢裂化反应性能的影响。结果表明,工艺条件对催化剂反应性能的影响强度由大到小的顺序为:温度>空速>氢油比>压力,在温度340 ℃、质量空速1.5 h-1、氢油体积比1 000、压力4 MPa的条件下,转化效果最佳,重质蜡转化率高达98.11%,轻质燃料油选择性为92.77%,裂解气选择性仅为7.23%。

关键词: 费-脱合成蜡, 催化剂, 加氢裂化, 工艺条件

Abstract: The hydrocracking catalysts were prepared by loading Ni-W onto USY-Al2O3 carrier through incipience wetness impregnation method and characterized by X-ray diffraction,infrared diffuse reflectance Pyridine adsorption and low temperature nitrogen adsorption desorption techniques. The effects of temperature, space velocity, hydrogen-oil ratio, and pressure on the hydrocracking performance of Fischer-Tropsch waxes were investigated by the single-factor variable method. The results showed that the influence of operating conditions changes as orders: temperature> space velocity> hydrogen oil volume ratio> pressure. At the optimized conditions of 340°C, 4 MPa, Sv 1.5h-1, hydrogen to oil ratio 1 000(v), the conversion is the best. The conversion rate of heavy wax oil is as high as 98.11%, light oil yield reaches 93.5%, and the yield of cracked gas is only 6.5%.

Key words: Fischer-Tropsch wax, catalyst, hydrocracking, process condition

中图分类号: