Dehydrogenation of propane to propylene over CrOy-CeO2-K2O/γ-Al2O3 catalysts: Effect of cerium content

被引：32

作者：

Kang, Ki Hyuk ^{[1
]}

Kim, Tae Hyeop ^{[1
]}

Choi, Won Choon ^{[2
]}

Park, Yong-Ki ^{[2
]}

Hong, Ung Gi ^{[3
]}

Park, Deuk Soo ^{[3
]}

Kim, Chul-Jin ^{[3
]}

Song, In Kyu ^{[1
]}

机构：

[1] Seoul Natl Univ, Inst Chem Proc, Sch Chem & Biol Engn, Seoul 151744, South Korea

[2] Korea Res Inst Chem Technol, Green Chem & Catalysis Res Ctr, Jang Dong 305600, Daejeon, South Korea

[3] ECO Hub, SK Gas R&D Ctr, Songnam 463400, Gyeonggi Do, South Korea

来源：

CATALYSIS COMMUNICATIONS | 2015年 / 72卷

关键词：

Propane; Dehydrogenation; Propylene; Cr-based catalyst; Oxygen capacity; OXIDATIVE DEHYDROGENATION; OLEFINS; CRACKING; ALUMINA; OXIDES; OXYGEN;

D O I：

10.1016/j.catcom.2015.09.009

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A series of CrOy(17.5 wr.%)-CeO2(X wt.%)-K2O(2 wt.%)gamma-Al2O3 catalysts (denoted as 17.5Cr-XCe-2K/Al) were prepared by a spray drying method and a subsequent incipient wetness impregnation method with a variation of cerium content (X, wt.%), and they were applied to the dehydrogenation of propane to propylene. It was revealed that the oxidation state of cerium species was closely related to the oxygen capacity (the amount of lattice oxygen) of the catalyst. The oxygen capacity served as a crucial factor in determining the catalytic performance in the reaction. Initial yield for propylene increased with increasing oxygen capacity of 17.5Cr-XCe-2K/Al catalysts. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：68 / 72

页数：5

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