Analyzing the potential for improving energy use and environmental performance in steelmaking often involves complex interaction between the sub units of the industrial system. In the steel industry implementation of Process Integration methods can be further developed to powerful tools for strategic management which includes decision making in connection with design of new plants, reshape of existing plants, or process development projects. Process constraints and alternative design options can be evaluated on equal terms. The implementation of recommended measures in this type of studies is often closely linked to other strategic decisions. International cooperation can help to develop and spread this type of systematic approaches to be used for identification of energy saving and CO2 reduction potential for the industry in general, and within this Annex for the iron and steel industry in particular.
Description of Annex
Efficient use of energy in industrial systems is important in order to decrease the total energy conversion in an industrial plant. It is desirable to use the excess heat generated from industry to produce a useful product as well as reduce the thermal pollution. The objective of the IETS Annex is to reduce the use of energy and greenhouse gas emissions in the iron and steel industry by the following:
- Creation of a network of experts involved in projects with the iron and steel industry and the use of Process Integration methods as a common denominator,
- Bringing together and sharing information on the present state of the art of methods as well as practical tools for systems optimisation with regard to energy and GHG emissions, and
- Creation of guidelines for the application of Process Integration methods in the industry.
The objectives shall be achieved by performing three Tasks. The Task structure forms a common path for the Annex participants. Each Task builds on national projects that are brought together to a collaborative work forming the total Annex scope. The first Task outlines the following work.
Task 1: Process integration methods
Task 2: Energy efficiency
- Heat recovery
- Energy coordination
- Low temperature streams
- Excess heat
Task 3: GHG mitigation
- Alternate fuels
- Carbon lean technologies
Activities during 2012-2013
The 2nd Annex Workshop took place in Luleå, Sweden, on 13-14 June 13th-14th, with 23 participants from seven countries. There were 13 technical presentations including all main themes of Process Inegration methods, energy efficiency and GHG reduction. There was a balance between universities, institutes and industrial participants. One recurring discussion was about how to communicate Process Integration results to stakeholders unfamiliar with the techniques.
Next workshop will take place in Japan during the fall of 2013.
Annex manager: Dr. Lawrence Hooey, Process metallurgy department at Swerea Mefos