石油炼制与化工

• 催化剂 • 上一篇    下一篇

柴油异构降凝催化剂DIJ的开发

李凤铉,温广明,李瑞峰,宋金鹤   

  1. 中国石油石油化工研究院大庆化工研究中心
  • 收稿日期:2010-12-08 修回日期:2011-01-21 出版日期:2011-06-12 发布日期:2011-06-12
  • 通讯作者: 李凤铉

DEVELOPMENT OF DIJ CATALYST FOR DIESEL FUEL HYDROISODEWAXING

WEN Guang-Ming   

  • Received:2010-12-08 Revised:2011-01-21 Online:2011-06-12 Published:2011-06-12

摘要: 制备了一种以某型分子筛和氧化铝为载体、W和Ni为活性组分的柴油异构降凝催化剂DIJ,用吡啶吸附红外光谱、X射线衍射、BET等手段对催化剂进行了物化性质的表征,在加氢装置上对催化剂进行了活性和稳定性考察。结果表明,以大庆焦化柴油和焦化柴油与催化裂化柴油的混合柴油为原料,异构降凝催化剂DIJ与精制剂组合使用时,柴油收率高,产品硫质量分数小于50.0 ?g/g,凝点降低14 ℃以上,十六烷值损失不大于0.6个单位。异构降凝催化剂DIJ具有良好的活性和稳定性。

关键词: 柴油, 异构降凝, 催化剂

Abstract: DIJ hydroisodewaxing catalyst for diesel fuel was developed using zeolite-alumina support and W-Ni active components. The physical-chemical properties of the catalyst were characterized by XRD, FT-IR and BET techniques. The activity and stability of the catalyst were evaluated on a hydrogenation unit combined with a hydrofining catalyst, using Daqing coker gas oil and the mixture of coker gas oil/FCC LCO as feed respectively. Results showed that the yield of diesel fuel was more than 89.0% with sulfur content less than 50.0 ?g/g, its freezing point was lowered more than 14 ℃ and the loss of cetane number was less than 0.6 units, which indicated that DIJ catalyst possessed good activity and stability.

Key words: diesel oil, hydrodewaxing, catalyst