Author
Listed:
- Wu Haibo
- Zhang Yi
- Haiyan Liao
- Xuehai Yu
- Zhaohui Liu
Abstract
Oxy‐fuel combustion technology has been recognized as the most promising technology for controlling CO2 emission in coal‐fired boilers. The slagging characteristics of oxy‐fuel combustion (O2/CO2) are very different from those of air combustion (O2/N2). In this paper, an ash sample collection of Shenhua coal with high Ca and Fe content was carried out in a muffle furnace and a tubular furnace under different conditions. The ash melting point, X‐ray diffraction (XRD) and scanning electron microscopy (SEM) were used for characterization. The characteristics of Shenhua coal ash slagging in different atmospheres were studied, and the mineral transformation trend was obtained. It was concluded that the melting point of the ash samples under oxy‐fuel combustion was lower than that under an air atmosphere, and the slagging tendency was enhanced under conditions of high oxygen combustion. Under oxy‐fuel combustion, CaCO3 was found. This did not occur under an air atmosphere. The atmosphere has no obvious effect on the crystal minerals of Fe. The decrease in high melting point oxide, the formation of carbonate, and the increase in glass state and sulfate under an oxy‐fuel atmosphere all make the ash melting point lower than under an air atmosphere. © 2019 Society of Chemical Industry and John Wiley & Sons, Ltd.
Suggested Citation
Wu Haibo & Zhang Yi & Haiyan Liao & Xuehai Yu & Zhaohui Liu, 2019.
"Experimental study of ash formation under O2/CO2 combustion,"
Greenhouse Gases: Science and Technology, Blackwell Publishing, vol. 9(2), pages 424-432, April.
Handle:
RePEc:wly:greenh:v:9:y:2019:i:2:p:424-432
DOI: 10.1002/ghg.1860
Download full text from publisher
Corrections
All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:wly:greenh:v:9:y:2019:i:2:p:424-432. See general information about how to correct material in RePEc.
If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.
We have no bibliographic references for this item. You can help adding them by using this form .
If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.
For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Wiley Content Delivery (email available below). General contact details of provider: https://doi.org/10.1002/(ISSN)2152-3878 .
Please note that corrections may take a couple of weeks to filter through
the various RePEc services.