| Zr改性Y分子筛中油型加氢裂化催化剂设计制备 |
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| 引用本文： | 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. |
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| 作者姓名： | 崔勍焱 张浩彬 魏强 岳源源 王廷海 朱海波 周亚松 鲍晓军 |
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| 作者单位： | 1. 福州大学石油化工学院，福建 福州 3501082. 中国石油大学(北京）化学工程学院，北京 102249) |
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| 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、NH3-TPD、H2-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。
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| 关 键 词： | 催化剂 分子筛 载体 加氢裂化 Zr改性 中间馏分油 |
| 收稿时间： | 2019-06-11 |
| 修稿时间： | 2019-07-22 |
Development of hydrocracking catalyst supported on Y zeolite modified with Zr |
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| Qingyan CUI,Haobin ZHANG,Qiang WEI,Yuanyuan YUE,Tinghai WANG,Haibo ZHU,Yasong ZHOU,Xianjun BAO.Development of hydrocracking catalyst supported on Y zeolite modified with Zr[J].Journal of Chemical Industry and Engineering(China),2019,70(10):3949-3955. |
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| Authors: | Qingyan CUI Haobin ZHANG Qiang WEI Yuanyuan YUE Tinghai WANG Haibo ZHU Yasong ZHOU Xianjun BAO |
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| Affiliation: | 1. College of Chemical Engineering, Fuzhou University, Fuzhou 350108, Fujian, China2. State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China |
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| 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), NH3 temperature programmed desorption (NH3-TPD), H2 temperature programmed reduction (H2-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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| Keywords: | catalyst zeolite support hydrocracking Zr modification middle distillates |
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