Study of Dimensional Changes during Redox Cycling of Oxygen Carrier Materials for Chemical Looping Combustion

被引：15

作者：

Fossdal, Anita ^{[1
]}

Darell, Ove ^{[1
]}

Lambert, Arnold ^{[2
]}

Schols, Erin ^{[3
]}

Comte, Elodie ^{[2
]}

Leenman, Rebecca ^{[3
]}

Blom, Richard ^{[4
]}

机构：

[1] SINTEF Mat & Chem, NO-7465 Trondheim, Norway

[2] IFP Energies Nouvelles, Rond Point Echangeur Solaize, F-69360 Solaize, France

[3] TNO Gas Treatment, NL-2600 JA Delft, Netherlands

[4] SINTEF Mat & Chem, NO-0314 Oslo, Norway

来源：

ENERGY & FUELS | 2015年 / 29卷 / 01期

关键词：

BED REACTOR; CRYSTAL-STRUCTURE; CO2; CAPTURE; EXPANSION; CLC; LA1-XSRXFEO3-DELTA; BEHAVIOR; SYSTEM;

D O I：

10.1021/ef502004k

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：

Dimensional and phase changes of four candidate oxygen carrier materials for chemical looping combustion are investigated by dilatometry and high-temperature X-ray diffraction during four redox cycles. NiO/Ni2AlO4 does not exhibit significant dimensional changes during cycling, and it is shown that the support material also contributes to the oxygen carrying capacity. CaMn0.875Ti0.125O3 exhibited good chemical stability and small dimensional changes upon redox cycling. Cu0.95Fe1.05AlO4 showed a one-dimensional expansion of 9% after the experiments, and significant phase changes were seen. The complex set of reactions occurring during redox cycling of ilmenite (FeTiO3) was shown to be accompanied by dimensional changes, giving non-steady dimensional changes during the oxidation and reduction steps.

引用

收藏

页码：314 / 320

页数：7

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