Dehydrogenation-cracking synergistic pathway of n-pentane by core-shell MFI zeolite to produce light olefins

被引：3

作者：

He, Xinyu ^{[1
]}

Tian, Yajie ^{[1
,3
]}

Qiao, Congzhen ^{[1
]}

Diao, Zhenheng ^{[4
]}

Liu, Guozhu ^{[2
,3
]}

机构：

[1] Henan Univ, Sch Energy Sci & Technol, Zhengzhou 450046, Peoples R China

[2] Tianjin Univ, Sch Chem Engn & Technol, Tianjin 300072, Peoples R China

[3] Haihe Lab Sustainable Chem Transformat, Tianjin 300192, Peoples R China

[4] Changchun Univ Technol, Sch Chem Engn, Changchun 130012, Peoples R China

来源：

MICROPOROUS AND MESOPOROUS MATERIALS | 2023年 / 362卷

基金：

中国国家自然科学基金;

关键词：

Core@shell; Zeolite; Dehydrogenation-cracking; Light olefins; CATALYTIC CRACKING; COKE FORMATION; PERFORMANCE; SELECTIVITY; MECHANISMS; METHANOL; HEPTANE;

D O I：

10.1016/j.micromeso.2023.112790

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

A core@shell MFI type zeolite supporting PtZn alloys catalyst was prepared by dry gel conversion method, which is used for catalytic cracking of n-pentane. The shell and core of catalyst is composed of nanosheet silicalite-1 and microporous ZSM-5, respectively. A proposed dehydrogenation-cracking pathway was demonstrated, which facilitate the generation of light olefins. At 600 degrees C with WHSV of 6.26 h-1, the yield of ethylene and propylene in the product attained up to 35.3 wt% and 33.4 wt%, respectively.

引用

页数：5

共 22 条

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