Improved Process Monitoring and Control

Various types of monitoring systems make it possible to increase process control of BOF, which can lead to increased productivity and energy and cost savings. Examples of such systems include the following:

  • Exhaust gas analysis systems: These system continuously monitor the constituents of the exhaust gas and use this information to provide feedback for process operational fine-tuning (e.g. MultiGas Analyser)
  • Contour sensoring system: These systems enable rapid and accurate monitoring of refractory linings in the BOF vessel and in ladle environments.  As a result, they increase productivity and prolong equipment life time (e.g. laser contouring system);
  • Simultaneous determination of steel/slag composition: These systems monitor the melt constituents real-time and in-situ and help improve product quality by reducing defects (see also In-Situ Real-Time Measurement of Melt Constituents);

An example of a process control system is an oxygen management system for oxygen supply to the BOF process.

Development Status Products
Commercial

Improved Process Monitoring and ControlCosts & Benefits

Parent Process: Basic Oxygen Furnace
Energy Savings Potential

Total energy savings due to oxygen management system is estimated to be 1.5% of the electricity used for Oxygen production.

CO2 Emission Reduction Potential

These technologies help reduce direct and indirect emissions.

Costs

These process control measures improve productivity and prolong equipment life-time, both providing economic benefits.

Improved Process Monitoring and Control Publications

Energy Efficiency Improvement and Cost Saving Opportunities for the U.S. Iron and Steel Industry

The U.S. Environmental Protection Agency’s (EPA) energy guide, Energy Efficiency Improvement and Cost Saving Opportunities for the U.S. Iron and Steel Industry, discusses energy efficiency practices and technologies that can be implemented in iron and steel manufacturing plants. This guide provides current real world examples of iron and steel plants saving energy and reducing cost and carbon dioxide emissions.

Page Number: 

88

The State–of-the-Art Clean Technologies (SOACT) for Steelmaking Handbook

 

The State–of-the-Art Clean Technologies (SOACT) for Steelmaking Handbook is developed as part of the Asia-Pacific Partnership on Clean Development and Climate program and seeks to catalog the best available technologies and practices to save energy and reduce environmental impacts in the steel industry. Its purpose is to share information about commercialized or emerging technologies and practices that are currently available to increase energy efficiency and environmental performance. 

Page Number: 

70

Improved Process Monitoring and Control Resources