Examination of Perovskite Structure CaMnO3-δ with MgO Addition as Oxygen Carrier for Chemical Looping with Oxygen Uncoupling Using Methane and Syngas
Joint Authors
Leion, Henrik
Jing, Dazheng
Mattisson, Tobias
Lyngfelt, Anders
Rydén, Magnus
Source
International Journal of Chemical Engineering
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-16, 16 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-09-30
Country of Publication
Egypt
No. of Pages
16
Main Subjects
Engineering Sciences and Information Technology
Abstract EN
Perovskite structure oxygen carriers with the general formula CaMnxMg1-xO3-δ were spray-dried and examined in a batch fluidized bed reactor.
The CLOU behavior, reactivity towards methane, and syngas were investigated at temperature 900°C to 1050°C.
All particles showed CLOU behavior at these temperatures.
For experiments with methane, a bed mass corresponding to 57 kg/MW was used in the reactor, and the average CH4 to CO2 conversion was above 97% for most materials.
Full syngas conversion was achieved for all materials utilizing a bed mass corresponding to 178 kg/MW.
SEM/EDX and XRD confirmed the presence of MgO in the fresh and used samples, indicating that the Mg cation is not incorporated into the perovskite structure and the active compound is likely pure CaMnO3-δ.
The very high reactivity with fuel gases, comparable to that of baseline oxygen carriers of NiO, makes these perovskite particles highly interesting for commercial CLC application.
Contrary to NiO, oxygen carriers based on CaMnO3-δ have no thermodynamic limitations for methane oxidation to CO2 and H2O, not to mention that the materials are environmentally friendly and can utilize much cheaper raw materials for production.
The physical properties, crystalline phases, and morphology information were also determined in this work.
American Psychological Association (APA)
Jing, Dazheng& Mattisson, Tobias& Leion, Henrik& Rydén, Magnus& Lyngfelt, Anders. 2013. Examination of Perovskite Structure CaMnO3-δ with MgO Addition as Oxygen Carrier for Chemical Looping with Oxygen Uncoupling Using Methane and Syngas. International Journal of Chemical Engineering،Vol. 2013, no. 2013, pp.1-16.
https://search.emarefa.net/detail/BIM-489890
Modern Language Association (MLA)
Jing, Dazheng…[et al.]. Examination of Perovskite Structure CaMnO3-δ with MgO Addition as Oxygen Carrier for Chemical Looping with Oxygen Uncoupling Using Methane and Syngas. International Journal of Chemical Engineering No. 2013 (2013), pp.1-16.
https://search.emarefa.net/detail/BIM-489890
American Medical Association (AMA)
Jing, Dazheng& Mattisson, Tobias& Leion, Henrik& Rydén, Magnus& Lyngfelt, Anders. Examination of Perovskite Structure CaMnO3-δ with MgO Addition as Oxygen Carrier for Chemical Looping with Oxygen Uncoupling Using Methane and Syngas. International Journal of Chemical Engineering. 2013. Vol. 2013, no. 2013, pp.1-16.
https://search.emarefa.net/detail/BIM-489890
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-489890