Preparation of ZSM-5 Encapsulated Pt-La Bimetallic Catalysts and Their Catalytic Performance for iso-Butane Cracking

被引：1

作者：

Hu, Wenxin ^{[1
]}

Zhao, Ying ^{[1
]}

Du, Danyang ^{[1
]}

Zhang, Hongdan ^{[1
]}

Cheng, Peng ^{[1
]}

机构：

[1] Shenyang Normal Univ, Inst Catalysis Energy & Environm, Coll Chem & Chem Engn, Shenyang 110034, Peoples R China

来源：

CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE | 2024年 / 45卷 / 10期

基金：

中国国家自然科学基金;

关键词：

ZSM-5; Hydrothermal synthesis; Encapsulation; Metal nanoparticles; Catalytic cracking; LIGHT OLEFINS; RARE-EARTH; HIERARCHICAL ZSM-5; ZEOLITES; HZSM-5; NAPHTHA; PROPYLENE; PYROLYSIS; STRENGTH; ACIDITY;

D O I：

10.7503/cjcu20240244

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Pt-xLa@HZSM-5 catalysts(x represents the molar ration of La to Pt, x=0.1, 0.25, 0.5 and 1.0 in the reaction system) were synthesized via one-pot hydrothermal method. The structure, morphology, acidity and metal species state of catalysts were investigated by X-ray diffraction, scanning and transmission electron microscopy, temperature-programmed desorption of ammonia, pyridine-adsorption infrared spectroscopy, and X-ray photoelectron spectroscopy. According to the results of activity test, Pt-0.25La@HZSM-5 had the best catalytic performance for iso-butane cracking, with a yield of 51.1% for ethylene and propylene at 625 degrees C. However, under the same reaction conditions, the yield of ethylene and propylene was only 41.4% on Pt@HZSM-5-0.25La catalyst synthesized by impregnation method for the iso-butane catalytic cracking.

引用

页数：8

共 45 条

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