Improving the Precision and Productivity of Green Coke Volatile Matter Analysis

Hon, Kevin; Edwards, Les; Marino, James; Lubin, Marvin

doi:10.1007/978-3-319-48179-1_218

Cited by 6 publications

(1 citation statement)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Thermogravimetric analyser is used for many purposes such as anode reactivity measurements (Lei, Liu, Li, Yang, & Wang, 2001;Lhuissier, Bezamanifary, Gendre, & Chollier, 2009;Tran, 2011), green coke devolatilization analysis (Hon, Edwards, Marino, & Lubin, 2012), pyrolysis of pitch (Sima et al, 2003). In the literature, a number of studies are reported on the analysis and the kinetic modelling of thermogravimetric weight-loss data using a differential approach (Buttler, 1975;Wallouch, Murty, & Heintz, 1972;Tremblay & Charette, 1988;Kocaefe, Charette, Ferland, Couderc, & Saint-Romaine, 1990).…”

Section: Introductionmentioning

confidence: 99%

Thermogravimetric Study on Devolatilization Kinetics of Chinalco Anodes during Baking

Kocaefe¹,

Xie²,

Kocaefe³

et al. 2013

JMSR

View full text Add to dashboard Cite

The production of aluminum requires the use of carbon anodes which are manufactured from coke, pitch, and recycled butts and anodes. Pitch acts as a binder. Green anodes are produced by mixing all these ingredients and then forming them in a compactor. The final step is the baking of green anodes, which determines the final anode properties. During baking, volatiles evolve from the pitch which carbonizes and binds the particulate matter. Anode quality greatly influences the performance of electrolytic cells and has an impact on carbon consumption, energy use, green house gas emissions, and cost.

In this project, the effects of the baking conditions on some of the anode properties (air permeability, air and CO₂ reactivities) were studied, and the devolatilization kinetics was determined for different cases. The results indicate that the lower heating rates and higher baking temperatures improve the above properties. In this article, the experimental work and the methodology for the determination of the kinetic expressions for devolatilization are described, and the results are presented. The position of volatile evolution in the baking furnace can be determined via these expressions, and this could be effectively used in controlling the volatile combustion to improve the furnace performance.

show abstract

Section: Introductionmentioning

confidence: 99%