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A model of post‐combustion in iron‐bath reactors, part 4: results for post‐combustion with preheated air
Author(s) -
Zhang Liuyi,
Oeters Franz
Publication year - 1993
Publication title -
steel research
Language(s) - English
Resource type - Journals
eISSN - 1869-344X
pISSN - 0177-4832
DOI - 10.1002/srin.199301576
Subject(s) - chemistry , combustion , oxygen , metallurgy , slag (welding) , heat transfer , materials science , thermodynamics , physics , organic chemistry
This paper describes calculated results of post‐combustion with pre‐heated air, heat transfer from gas to the melt via a mixture of metal and slag droplets, reoxidation at the metal droplets, CO evolution rate from the melt, production rate of the reactor, and carbon consumption of various process modes of a 15‐t reactor with or without oxygen blowing through the vessel bottom. Using pre‐heated air, the achievable post‐combustion degree is higher than using pure oxygen. Nevertheless, slag droplets as heat carrier are necessary. With 50 % slag droplets the real post‐combustion degree can be higher than 45 %. With 90 % slag droplets it can be even higher than 80 %. The operating point of the reactor is discussed.