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Preheating and surface cleaning of steel scrap by ASR
RISE, Swerea, Swerea MEFOS.
SSAB.
RISE, Swerea, Swerea MEFOS.
RISE, Swerea, Swerea MEFOS.
2008 (English)In: Proceedings of the 2008 Global Symposium on Recycling, Waste Treatment and Clean Technology, REWAS 2008, 2008, 14-sep p.Conference paper, Published paper (Refereed)
Abstract [en]

Increased use of scrap in steelmaking including scrap use in BOF has a high economic and environmental potential in terms of increased productivity, energy saving and reduced emission of CO2. Preheating and surface cleaning of steel scrap is a concept developed by MEFOS in a four year research program funded by MISTRA, Swedish Foundation of Strategic Environmental Research. The process concept consists of four major steps: 1) Combustion of ASR or other waste fuel and composing of the gas composition. 2) Scrap heating and cleaning in a shaft where the coated zinc is removed as ZnCl2 and scrap is heated to about 600°C. 3) Dust separation for recovery of metal zinc. 4) Gas cleaning. This paper will describe the process concept and highlight the major results from preliminary trials around the scrap heating and cleaning shaft.

Place, publisher, year, edition, pages
2008. 14-sep p.
Keyword [en]
Preheating, Scrap, Surface cleaning, Zinc removal
National Category
Materials Engineering
Identifiers
URN: urn:nbn:se:ri:diva-13493Scopus ID: 2-s2.0-62449326990ISBN: 9780873397261 (print)OAI: oai:DiVA.org:ri-13493DiVA: diva2:973702
Conference
2008 Global Symposium on Recycling, Waste Treatment and Clean Technology, REWAS 2008
Available from: 2016-09-22 Created: 2016-09-22Bibliographically approved

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Swerea MEFOS
Materials Engineering

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