石油炼制与化工 ›› 2025, Vol. 56 ›› Issue (7): 56-61.

• 催化剂 • 上一篇    下一篇

贯通介孔结构催化裂化催化剂的研发

于善青,严加松,刘雨晴,曾双亲,宋海涛   

  1. 中石化石油化工科学研究院有限公司
  • 收稿日期:2024-12-11 修回日期:2025-02-26 出版日期:2025-07-12 发布日期:2025-07-01
  • 通讯作者: 于善青 E-mail:yusq.ripp@sinopec.com
  • 基金资助:
    国家重点研发计划

RESEARCH AND DEVELOPMENT OF CATALYTIC CRACKING CATALYST RICH IN INTERCONNECTED MESO-MACRO PORES


  • Received:2024-12-11 Revised:2025-02-26 Online:2025-07-12 Published:2025-07-01

摘要: 通过设计新型的氧化铝基质和催化剂制备技术,中石化石油化工科学研究院有限公司开发了富含贯通介孔结构的催化裂化催化剂,解决了催化剂介孔丰富和强度优异相互制约的难题。与采用常规氧化铝基质制备的催化剂相比,新型催化剂具有更大的孔体积和更优的扩散性能,水滴法孔体积由0.37 cm3/g增加到0.45 cm3/g,孔径在5~100 nm范围分布由16%增加到52%,孔道贯通性优异。以重质原料油进行的催化裂化反应评价结果表明,与常规催化剂相比,新型催化剂可获得更高的轻质油收率、更低的重油和焦炭产率,为实现劣质石油资源高效转化提供了技术支撑。

关键词: 催化裂化, 催化剂, 贯通介孔, 氧化铝

Abstract: A new catalytic cracking (FCC) catalyst rich in interconnected meso-macro pores has been developed by SINOPEC Research Institute of Petroleum Processing Co., Ltd., basing on the new developed alumina matrix and catalyst preparation technology, which solves the problem of the mutual constraint between abundant meso-macro pores and excellent strength of catalyst. The results of physical and chemical properties show that compared with the catalyst using conventional alumina matrix, the new catalyst has larger pore volume and better diffusion performance, the pore volume increased from 0.37cm3/g to 0.45 cm3/g, the 5—100 nm pore proportation increased from 16% to 52%, and has excellent pore inter-connectivity. The evaluation results of catalytic cracking reaction using heavy feedstock show that the new catalyst could achieve higher light oil product yields, lower heavy oil and coke yields than the comparative catalyst, providing technical support for improving the efficient conversion of inferior feedstocks.

Key words: catalytic cracking, catalyst, interconnected meso-marco pores, alumina