anode effect

anode effect

[′a‚nōd i‚fekt]
(physical chemistry)
A condition produced by polarization of the anode in the electrolysis of fused salts and characterized by a sudden increase in voltage and a corresponding decrease in amperage.
References in periodicals archive ?
Process fault diagnosis subsystem is used to test the aluminum electrolysis anode effect and the rolling aluminum fault occurred in the process.
Two subnetworks are as follows: one is detecting anode effect and the other is rolling aluminum.
Comprehensive analysis of fault diagnosis methods for aluminum electrolytic control system
A study of emission of greenhouse gases C[F.sub.4] and [C.sub.2][F.sub.6] during anode effect was undertaken and reported upon in a paper[7] by A Oygard et al.
These are: acceptable alumina dissolution, satisfactory mixing to avoid concentration gradients and a satisfactory rate of alumina increase after anode effect. It is shown that alumina dissolution requirements are most difficult to satisfy.
Advances in the extractive metallurgy of aluminium
In the aluminium industry, reported PFC emissions are known to be associated with momentary process imbalances known as Anode Effects.
"We believe our new research is the first of its kind as it aims to tackle emissions from minute changes rather than just reducing Anode Effects that we can all detect today.
EGA to further reduce PFC emissions after record low in 2017
The main sources of greenhouse gases (GHGs) at Dubal are: mobile equipment and vehicles; natural gas consumed in the furnaces, baking kilns and rodding room; anode consumption during the aluminium reduction process; perfluorocarbon (PFC) emissions from anode effects; and power generation activities.
Dubal efforts ensure cleaner environment
In recent years, this has included introducing new preventative maintenance procedures; alternative anode sizes; and new controls to anticipate and prevent anode effects. We've also installed evaporative cooling systems on several gas turbines; replaced conventional burners with regenerative see burners in one of our furnaces; and commissioned a new combined cycle turbine," Dubal Power and Desalination Vice-President Tayeb Awadhi said.
Dubal to lend support to event
"The reduced use of fossil fuel has obvious resource and environmental conservation benefits; while significantly fewer anode effects compared to lower amperage technologies also contribute to lower perfluorocarbon emissions.
DUBAL technology promoted at industry forum
In addition to boosting production capacity, the new technology reduces emissions of perfluorocarbons, a greenhouse gas generated in the aluminium smelting process from anode effects, by 96%.
UAE's EGA completes $300m project to replace old production lines
* Perfluorocarbon (PFC) gases are greenhouse gases generated during anode effects in the potrooms.
Doing it the 'Qatalum Way'
Encyclopedia browser ?
Full browser ?