Cold Rolling - Reduced Steam Use in the Acid Pickling Line

 

In the pickling line, heat escapes through evaporation from the hydrochloric acid bath. The bath is normally heated to temperatures of 95°C. It is reported that steam use can be reducedby installing a system of lids and floating balls on top of the bath.

Development Status Products
Commercial
Cold rolled steel

Cold Rolling - Reduced Steam Use in the Acid Pickling LineCosts & Benefits

Parent Process: Rolling Mills
Energy Savings Potential

Steam use can be reduced by around 17% or by approximately 0.19 GJ/t-product (US EPA, 2010. p. 30). 

CO2 Emission Reduction Potential

Emission reductions are estimated to be 9.9 kg CO2/t-product (US EPA, 2010. p. 10). .

Costs

 

Estimated capital costs were $4.4/t-product. The payback time is estimated as 7 years (US EPA, 2010. p. 30).

Cold Rolling - Reduced Steam Use in the Acid Pickling Line Publications