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Off-gas measurements for mass and energy balances of stainless steel EAF

Title data

Kirschen, Marcus ; Pfeifer, Herbert ; Wahlers, Franz-Josef ; Mees, H.:
Off-gas measurements for mass and energy balances of stainless steel EAF.
In: Kanagy, David L. , Iron and Steel Society (ed.): 59th Electric Furnace Conference and 19th Process Technology Conference Proceedings. - Warrendale, PA. : Iron and Steel Society , 2001 . - pp. 737-745
ISBN 1886362572

Abstract in another language

Measurements of exhaust gas mass flow and composition at the elbow yield valuable information about various process parameters and energy efficiency of stainless steel making, e.g.:
• the amount of CO already reacted in the furnace with oxygen from infiltrated air
• the degree of air infiltration due to furnace and dedusting system operation
These data permit the refinement of estimates about the off-gas enthalpy in order to set up precise mass and energy balances of the EAF. In contrast to high grade steel production, amounts of CO- and H2-bearing off-gas vary significantly in scrap melting for stainless steel production. Consequently, fume gas extraction should be adapted to different melting periods in order to optimize (1) energy efficiency of the melting process, (2) oxidation of Cr by control of CO partial pressure and (3) homogeneous temperature distribution in the furnace shell.

Further data

Item Type: Article in a book
Refereed: Yes
Keywords: Electric arc furnace; Stainless steel; Off-gas measurements; Mass Balance; Energy efficiency; Fume gas extraction
Institutions of the University: Faculties > Faculty of Engineering Science
Research Institutions > Affiliated Institutes > Fraunhofer Center for High Temperature Materials and Design (HTL)
Result of work at the UBT: No
DDC Subjects: 600 Technology, medicine, applied sciences > 620 Engineering
Date Deposited: 18 Jun 2019 06:41
Last Modified: 18 Jun 2019 06:41
URI: https://eref.uni-bayreuth.de/id/eprint/49551