Bulk monolithic Ce-Zr-Fe-O/Al2O3 oxygen carriers for a fixed bed scheme of the chemical looping combustion: Reactivity of oxygen carrier

被引：51

作者：

Gu, Zhenhua ^{[1
,2
]}

Li, Kongzhai ^{[1
,2
]}

Wang, Hua ^{[1
,2
]}

Qing, Shan ^{[1
,2
]}

Zhu, Xing ^{[1
,2
]}

Wei, Yonggang ^{[1
,2
]}

Cheng, Xianming ^{[1
]}

Yu, He ^{[1
,3
]}

Cao, Yan ^{[3
]}

机构：

[1] Kunming Univ Sci & Technol, State Key Lab Complex Nonferrous Met Resources Cl, Kunming 650093, Yunnan, Peoples R China

[2] Kunming Univ Sci & Technol, Fac Met & Energy Engn, Kunming 650093, Yunnan, Peoples R China

[3] Western Kentucky Univ, Dept Chem, Inst Combust Sci & Environm Technol, 2413 Nashville Rd, Bowling Green, KY 42101 USA

来源：

APPLIED ENERGY | 2016年 / 163卷

基金：

中国国家自然科学基金;

关键词：

Chemical looping combustion; Bulk monolithic oxygen carrier; Fixed bed reactor; Ce-Zr-Fe-O/Al2O3; Redox stability; INTERCONNECTED FLUIDIZED-BED; PACKED-BED; PARTIAL OXIDATION; LATTICE OXYGEN; REDOX BEHAVIOR; CO2; CAPTURE; REACTOR; SYNGAS; METHANE; GAS;

D O I：

10.1016/j.apenergy.2015.10.177

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

The size and geometry of oxygen carriers are one of the key factors to determine the efficiency of a large-scale chemical looping combustion (CLC) system in fixed bed reactors, because they strongly affect the dynamic conditions of the gas-solid reactions, such as the intra particle mass transfer limitation for reactants, the pressure drop and the flow distribution. In the present work, we describe for the first time the utilization of bulk monolithic oxygen carriers for chemical looping combustion of methane in a fixed bed reactor. The comparison on the structure and reactivity of the monolithic Ce-Zr-Fe-O/Al2O3 oxygen carrier with the powder one is investigated in detail. The successive CH4-reduction/air-oxidation redox testing of the monolithic oxygen carrier is also performed. It is found that the Ce-Zr-Fe-O/Al2O3 oxygen carriers own high activity for methane complete oxidation due to the strong active component

引用

页码：19 / 31

页数：13

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