TY - JOUR
T1 - Electric arc furnace filter dust: Influence of organic material on the bulk density and flowability
AU - Lanzerstorfer, Christof
N1 - Funding Information:
Financial support by K1-MET is acknowledged. K1-MET is a member of COMET—Competence Centers for Excellent Technologies and is financially supported by the BMVIT (Federal Ministry for Transport, Innovation and Technology), BMWFJ (Federal Ministry of Economy, Family and Youth), the federal states of Upper Austria, Styria and Tyrol, SFG, and Tiroler Zukunftsstiftung. COMET is managed by FFG (Austrian research promotion agency). The cooperation and the provision of the EAF dust samples by D. Steiner, the preparation of the scanning electron microscope images by Mr. M. Gillich, the GC-MS analysis by R. Haberlik, some laboratory work by M. Repolusk and proofreading by P. Orgill are gratefully acknowledged.
Publisher Copyright:
© 2018, © 2018 Taylor & Francis.
PY - 2019/8/18
Y1 - 2019/8/18
N2 - In this study, the influence of condensed organic matter on the flowability and the bulk density of electric arc furnace (EAF) dust was investigated. The properties of the original dust samples containing some organic matter were compared with the properties of these samples after the removal of the condensed organic compounds by a deoiling procedure. The particle size distribution and the density of the three investigated dust samples were quite similar but the content of organic matter (TOC) was different. The values for the bulk density were lower for the original dust compared to the deoiled dust samples. The higher the TOC content, the higher the difference in the bulk density. Thus, the storage capacity of the dust silo was reduced by 9–17%. The flowability of all deoiled dust samples was very similar, whereas the flowability of the original dust was worse. The higher the TOC content, the worse the flowability. The average reduction of ffc in comparison to the deoiled dust samples was 48, 38, and 17% for EAF dust samples with 0.65, 0.46, and 0.26% TOC, respectively. Evidently, the condensed organic matter on the dust particles reduces the flowability of the material. Therefore, the bulk density for dust with a higher TOC content is also lower.
AB - In this study, the influence of condensed organic matter on the flowability and the bulk density of electric arc furnace (EAF) dust was investigated. The properties of the original dust samples containing some organic matter were compared with the properties of these samples after the removal of the condensed organic compounds by a deoiling procedure. The particle size distribution and the density of the three investigated dust samples were quite similar but the content of organic matter (TOC) was different. The values for the bulk density were lower for the original dust compared to the deoiled dust samples. The higher the TOC content, the higher the difference in the bulk density. Thus, the storage capacity of the dust silo was reduced by 9–17%. The flowability of all deoiled dust samples was very similar, whereas the flowability of the original dust was worse. The higher the TOC content, the worse the flowability. The average reduction of ffc in comparison to the deoiled dust samples was 48, 38, and 17% for EAF dust samples with 0.65, 0.46, and 0.26% TOC, respectively. Evidently, the condensed organic matter on the dust particles reduces the flowability of the material. Therefore, the bulk density for dust with a higher TOC content is also lower.
KW - electric arc furnace dust
KW - organic matter
KW - dust properties
KW - silo storage capacity
KW - electric arc furnace dust
KW - organic matter
KW - dust properties
KW - silo storage capacity
KW - Dust properties
UR - http://www.scopus.com/inward/record.url?scp=85042213446&partnerID=8YFLogxK
U2 - 10.1080/02726351.2017.1405132
DO - 10.1080/02726351.2017.1405132
M3 - Article
SN - 0272-6351
VL - 37
SP - 651
EP - 655
JO - Particulate Science and Technology
JF - Particulate Science and Technology
IS - 6
ER -