DOI: 10.1016/j.jcou.2016.01.001
Scopus记录号: 2-s2.0-84955492242
论文题名: Novel perovskite ceramics for chemical looping combustion application
作者: Imanieh M.H. ; Rad M.H. ; Nadarajah A. ; González-Platas J. ; Rivera-López F. ; Martín I.R.
刊名: Journal of CO2 Utilization
ISSN: 22129820
出版年: 2016
卷: 13 起始页码: 95
结束页码: 104
语种: 英语
英文关键词: Chemical looping combustion and calcium manganese
; Porous perovskite
Scopus关键词: Calcium
; Chemical reactors
; Combustion
; Fluid catalytic cracking
; Fluidized beds
; Manganese
; Oxygen
; Perovskite
; Titration
; Chemical looping combustion
; Conversion rates
; Fluidized bed reactors
; Iodometric titration
; Oxygen capacities
; Perovskite ceramics
; Perovskite structures
; Temperature increase
; Fluidized bed combustion
英文摘要: New modified calcium manganese (CM) perovskite structures applicable in chemical looping combustion were synthesized in this study. These modifications were applied by doping the A-site with lanthanum and strontium and B-site by iron and zirconium (CLMF, CLMZ, CSMF, and CSMZ). TGA, XRD, SEM and BET techniques have been used to characterize the prepared structures. According to the results obtained from TGA analysis, the oxygen capacity of the samples ranged between 1.2 for CLMZ and 1.75 for CSMF. All prepared samples showed to possess a porous surface and the perovskites phase formation was confirmed by XRD results. Iodometric titration experiments were also conducted for evaluating the manganese ion charge and its variability in association with different doping elements. Reactivity and oxygen uncoupling behaviors of the prepared samples were also evaluated using a fluidized bed chemical looping reactor using methane as the fuel at four different temperatures (800, 850, 900, 950 °C). All of the oxygen carriers showed oxygen uncoupling behavior and they were able to capture and release oxygen. Mass-based conversion of the perovskites was calculated and temperature increase proved to increase the mass-based conversion rate in all of the samples under study. Gas yield was calculated at 950 °C as well, and results showed that CLMZ, CM and CSMF showed 100% gas yields and CLMF and CSMZ showed approximately 85% yield in fluidized bed reactor, which is a high and acceptable quantity. © 2016 Elsevier Ltd. All rights reserved. 资助项目: U.S. Department of Energy
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/52937
Appears in Collections: 影响、适应和脆弱性
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Recommended Citation:
Imanieh M.H.,Rad M.H.,Nadarajah A.,et al. Novel perovskite ceramics for chemical looping combustion application[J]. Journal of CO2 Utilization,2016-01-01,13