Effects of synergy between Cr2O3 and hierarchical HZSM-5 on transformation of LPG toward propylene and ethylene

被引：24

作者：

Wang, Kangzhou ^{[1
]}

Fan, Subing ^{[1
]}

Zhang, Jianli ^{[1
]}

Ma, Qingxiang ^{[1
]}

Zhang, Wen ^{[1
]}

Zhao, Tian-Sheng ^{[1
]}

机构：

[1] Ningxia Univ, State Key Lab High Efficiency Utilizat Coal & Gre, Coll Chem & Chem Engn, Yinchuan 750021, Peoples R China

来源：

FUEL PROCESSING TECHNOLOGY | 2018年 / 179卷

关键词：

HZSM-5; TPAOH treatment; Cr2O3; loading; Synergy; LPG; Selective transformation; Propylene and ethylene; PRODUCE LIGHT OLEFINS; TEMPERATURE-PROGRAMMED DESORPTION; CATALYTIC CRACKING; ZSM-5; ZEOLITES; SKELETAL ISOMERIZATION; N-BUTENE; METHANOL; PHOSPHORUS; DEHYDROGENATION; AROMATIZATION;

D O I：

10.1016/j.fuproc.2018.06.014

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Hierarchical HZSM-5 supported Cr2O3 obtained through tetrapropylammonium hydroxide (TPAOH) treatment and subsequent loading of Cr2O3 exhibited synergistically catalytic performance toward the transformation of liquefied petroleum gas (LPG) to propylene and ethylene due to increase in mesoporosity, weak-acid amount and strong-acid strength. Over 10%Cr2O3/HZ5-96 with mesoporosity of 51.4% and moderate ratio of weak-acid amount/strong-acid amount of 4, the selectivity of propylene and ethylene reached 58.91% at 600 degrees C. Furthermore, the formation of methane and heavier C-5(+) was dramatically reduced. This provides a clue for catalyst design to the selective transformation of mixed light hydrocarbons.

引用

页码：53 / 59

页数：7

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