Effect of Alkaline Elements on Coke Structure under Blast Furnace Process Conditions

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Standard

Effect of Alkaline Elements on Coke Structure under Blast Furnace Process Conditions. / Bhattacharyya, Anrin; Schenk, Johannes; Letofsky-Papst, Ilse; Albering, Jörg.

Effect of Alkaline Elements on Coke Structure under Blast Furnace Process Conditions. 2016.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Harvard

Bhattacharyya, A, Schenk, J, Letofsky-Papst, I & Albering, J 2016, Effect of Alkaline Elements on Coke Structure under Blast Furnace Process Conditions. in Effect of Alkaline Elements on Coke Structure under Blast Furnace Process Conditions. METAL 2016, Brno, Czech Republic, 25/05/16.

APA

Bhattacharyya, A., Schenk, J., Letofsky-Papst, I., & Albering, J. (2016). Effect of Alkaline Elements on Coke Structure under Blast Furnace Process Conditions. In Effect of Alkaline Elements on Coke Structure under Blast Furnace Process Conditions

Vancouver

Bhattacharyya A, Schenk J, Letofsky-Papst I, Albering J. Effect of Alkaline Elements on Coke Structure under Blast Furnace Process Conditions. In Effect of Alkaline Elements on Coke Structure under Blast Furnace Process Conditions. 2016

Author

Bhattacharyya, Anrin ; Schenk, Johannes ; Letofsky-Papst, Ilse ; Albering, Jörg. / Effect of Alkaline Elements on Coke Structure under Blast Furnace Process Conditions. Effect of Alkaline Elements on Coke Structure under Blast Furnace Process Conditions. 2016.

Bibtex - Download

@inproceedings{8b2004365f7645a58a3c5cdc14341075,
title = "Effect of Alkaline Elements on Coke Structure under Blast Furnace Process Conditions",
abstract = "Presence of alkaline elements such as sodium and potassium are highly detrimental for blast furnace operations. Even a trace amount of alkali affects the performance of raw materials considerably. The performance of coke in the process suffers significantly in presence of alkalis by the catalysis of Boudouard reaction during its descent through the shaft and subsequent deterioration of its strength in the lower zone of the furnace, leading to various furnace operating problems. The aim of this work is to investigate the impact of these harmful elements on the coke structure in micro as well as nano level. The Coke Reactivity Index (CRI) and Coke Strength after Reaction (CSR) values of coke are determined for original industrial coke samples as well as the same samples artificially impregnated with alkaline elements in different amounts. The original and CRI-method treated samples (with and without added alkali) are characterized using Scanning Electron Microscopy (SEM), X-Ray Diffractometry (XRD) and Transmission Electron Microscopy (TEM) to look into the lattice and crystalline structure of the constituent graphite of coke. The results demonstrate pronounced disturbance in the graphite lattice caused by alkali. An attempt has been made to explain the mechanism of the deterioration of coke properties under the influence of alkalis in terms of the difference in atomic radii of the constituent elements. ",
author = "Anrin Bhattacharyya and Johannes Schenk and Ilse Letofsky-Papst and J{\"o}rg Albering",
year = "2016",
month = may,
language = "English",
booktitle = "Effect of Alkaline Elements on Coke Structure under Blast Furnace Process Conditions",
note = "null ; Conference date: 25-05-2016 Through 27-05-2016",

}

RIS (suitable for import to EndNote) - Download

TY - GEN

T1 - Effect of Alkaline Elements on Coke Structure under Blast Furnace Process Conditions

AU - Bhattacharyya, Anrin

AU - Schenk, Johannes

AU - Letofsky-Papst, Ilse

AU - Albering, Jörg

PY - 2016/5

Y1 - 2016/5

N2 - Presence of alkaline elements such as sodium and potassium are highly detrimental for blast furnace operations. Even a trace amount of alkali affects the performance of raw materials considerably. The performance of coke in the process suffers significantly in presence of alkalis by the catalysis of Boudouard reaction during its descent through the shaft and subsequent deterioration of its strength in the lower zone of the furnace, leading to various furnace operating problems. The aim of this work is to investigate the impact of these harmful elements on the coke structure in micro as well as nano level. The Coke Reactivity Index (CRI) and Coke Strength after Reaction (CSR) values of coke are determined for original industrial coke samples as well as the same samples artificially impregnated with alkaline elements in different amounts. The original and CRI-method treated samples (with and without added alkali) are characterized using Scanning Electron Microscopy (SEM), X-Ray Diffractometry (XRD) and Transmission Electron Microscopy (TEM) to look into the lattice and crystalline structure of the constituent graphite of coke. The results demonstrate pronounced disturbance in the graphite lattice caused by alkali. An attempt has been made to explain the mechanism of the deterioration of coke properties under the influence of alkalis in terms of the difference in atomic radii of the constituent elements.

AB - Presence of alkaline elements such as sodium and potassium are highly detrimental for blast furnace operations. Even a trace amount of alkali affects the performance of raw materials considerably. The performance of coke in the process suffers significantly in presence of alkalis by the catalysis of Boudouard reaction during its descent through the shaft and subsequent deterioration of its strength in the lower zone of the furnace, leading to various furnace operating problems. The aim of this work is to investigate the impact of these harmful elements on the coke structure in micro as well as nano level. The Coke Reactivity Index (CRI) and Coke Strength after Reaction (CSR) values of coke are determined for original industrial coke samples as well as the same samples artificially impregnated with alkaline elements in different amounts. The original and CRI-method treated samples (with and without added alkali) are characterized using Scanning Electron Microscopy (SEM), X-Ray Diffractometry (XRD) and Transmission Electron Microscopy (TEM) to look into the lattice and crystalline structure of the constituent graphite of coke. The results demonstrate pronounced disturbance in the graphite lattice caused by alkali. An attempt has been made to explain the mechanism of the deterioration of coke properties under the influence of alkalis in terms of the difference in atomic radii of the constituent elements.

M3 - Conference contribution

BT - Effect of Alkaline Elements on Coke Structure under Blast Furnace Process Conditions

Y2 - 25 May 2016 through 27 May 2016

ER -