BOF vs EAF

Question 1

Energy consumption of BOF Vs EAF?

Answer 1

EAF < BOF

Question 2

CO2 release of BOF Vs EAF?

Answer 2

EAF < BOF (plus avoids coke using)

Question 3

Scrap recycling of BOF Vs EAF?

Answer 3

EAF can recycle scrap iron whereas BOF cannot.

Question 4

Slag production of BOF Vs EAF?

Answer 4

EAF slag production contains more hazardous metals than BOF. Due to large scrap larges containing toxic metals like: Pb, Zn, Cd.

Question 5

Treatment of Dust in EAF?

Answer 5

Dust cannot be recycled as Zn will accumulate, causes problem for EAF.
Dust contains high Zn and Pd therefore it cannot be landfilled.
Leaching Zn out is a solution or storing the dust.