Development of hydrocracking catalyst supported on Y zeolite modified with Zr

CUI Qingyan; ZHANG Haobin; WEI Qiang; YUE Yuanyuan; WANG Tinghai; ZHU Haibo; ZHOU Yasong; BAO Xianjun

doi:10.11949/0438-1157.20190651

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Development of hydrocracking catalyst supported on Y zeolite modified with Zr

Catalysis\, kinetics and reactors | 更新时间：2026-07-24

- Development of hydrocracking catalyst supported on Y zeolite modified with Zr
- CIESC Journal Vol. 70, Issue 10, Pages: 3949-3955(2019)
- 作者机构：
  
  1.福州大学石油化工学院，福建福州 350108
  2.中国石油大学(北京）化学工程学院，北京 102249)
- 作者简介：
- 基金信息：
- DOI：10.11949/0438-1157.20190651
  CLC： TQ 426.92
- Received：11 June 2019，
  
  Revised：2019-07-22，
  
  Online First：24 July 2026，
  
  Published：05 October 2019
- 稿件说明：
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崔勍焱, 张浩彬, 魏强, 岳源源, 王廷海, 朱海波, 周亚松, 鲍晓军. Zr改性Y分子筛中油型加氢裂化催化剂设计制备[J]. 化工学报, 2019, 70(10): 3949-3955

CUI Qingyan, ZHANG Haobin, WEI Qiang, YUE Yuanyuan, WANG Tinghai, ZHU Haibo, ZHOU Yasong, BAO Xianjun. Development of hydrocracking catalyst supported on Y zeolite modified with Zr[J]. CIESC Journal, 2019, 70(10): 3949-3955
崔勍焱, 张浩彬, 魏强, 岳源源, 王廷海, 朱海波, 周亚松, 鲍晓军. Zr改性Y分子筛中油型加氢裂化催化剂设计制备[J]. 化工学报, 2019, 70(10): 3949-3955 DOI： 10.11949/0438-1157.20190651.

CUI Qingyan, ZHANG Haobin, WEI Qiang, YUE Yuanyuan, WANG Tinghai, ZHU Haibo, ZHOU Yasong, BAO Xianjun. Development of hydrocracking catalyst supported on Y zeolite modified with Zr[J]. CIESC Journal, 2019, 70(10): 3949-3955 DOI： 10.11949/0438-1157.20190651.

摘要

采用等体积浸渍法对Y分子筛进行了Zr修饰改性，系统考察了不同用量Zr对改性Y分子筛的结构、催化剂的理化性质和加氢裂化反应性能的影响规律。通过XRD、NH

-TPD、H

-TPR和TEM等方法对改性分子筛和催化剂进行表征分析。结果表明：Zr改性降低了Y分子筛的酸量，随着改性Zr用量的增加，这种变化趋势不断增大。同时，Zr改性有效地削弱了分子筛催化剂中金属活性组分与载体间的作用，提高了W物种在催化剂表面的分散程度。加氢裂化反应结果表明：与Y分子筛催化剂相比，Zr改性Y分子筛催化剂的减压馏分油(VGO)转化率降低，中间馏分油选择性提高约20%，随着改性Zr用量的增加，VGO的转化率不断降低，中间馏分油选择性略有增加。

Abstract

Y zeolite was modified with Zr by equal volume impregnation method. The effects of different amounts of Zr on the structure of modified Y zeolite

the physicochemical properties of the catalyst and the performance of hydrocracking reaction were investigated systematically. The modified Y zeolite and catalyst were characterized by X-ray diffraction (XRD)

temperature programmed desorption (NH

-TPD)

temperature programmed reduction (H

-TPR) and transmission electron microscopy (TEM). The results show that Zr modification decreased the amount of acid sites of Y zeolite

and the trend became larger with an increase of Zr content. Moreover

Zr modification availably weakened the relation of metal species and support in the catalyst with Y zeolite

and improved the dispersion of W species on the catalyst surface. The hydrocracking reaction results suggested that VGO conversion over the catalyst with Y zeolite modified with Zr decreased compared with that with Y zeolite

and middle distillates increased about 20%(mass)

as well as VGO conversion gradually decreased and the middle distillates slightly increased as the Zr content increased.

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references

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