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Injection of heavy fuel oil into the blast furnace

Abstract

This study deals with the injection and combustion of heavy fuel oil in blast furnaces. The injection of the oil was studied experimentally in a small-scale test rig. The combustion of the oil was analysed with a commercial computer program for flow and combustion simulations. Results from computer simulations show that the combustion of the oil can be improved by decreasing the size of the oil drops and by enhancing the mixing between the oil drops and the hot blast. The devolatilization rate of the oil mainly depends on the size of the oil drops. The combustion rate of the volatiles mainly depends on the effectiveness of turbulent mixing with combustion air. Methods to decrease the size of the oil drops were sought in the experimental part of the study. Experimental results show that the size of the oil drops increases with increasing mass flow rate of the oil and decreases with increasing velocity of the hot blast. Methods to improve the mixing between the oil drops and the hot blast are suggested but have not yet been experimentally tested. (author) (4 refs.)
Authors:
Paloposki, T; [1]  Hakala, J; Mannila, P; Laukkanen, J [2] 
  1. Helsinki Univ. of Technology, Otaniemi (Finland)
  2. Oulu Univ. (Finland)
Publication Date:
Dec 31, 1996
Product Type:
Conference
Report Number:
TKK-V-B117; CONF-9606318-
Reference Number:
SCA: 025000; 320301; PA: FI-97:003304; EDB-97:059980; SN: 97001773808
Resource Relation:
Conference: 3. colloquium on process simulation, Espoo (Finland), 11-14 Jun 1996; Other Information: PBD: 1996; Related Information: Is Part Of The 3rd colloquium on process simulation. Proceedings; Jokilaakso, A. [ed.]; PB: 359 p.
Subject:
02 PETROLEUM; 32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; RESIDUAL FUELS; BLAST FURNACES; METAL INDUSTRY; COMPUTERIZED SIMULATION; MIXING; TURBULENCE; DROPLETS; PARTICLE SIZE; FLOW MODELS
OSTI ID:
464567
Research Organizations:
Helsinki Univ. of Technology, Otaniemi (Finland). Lab. of Materials Processing and Powder Metallurgy
Country of Origin:
Finland
Language:
English
Other Identifying Numbers:
Other: ON: DE97740683; ISBN 951-22-3092-5; TRN: FI9703304
Availability:
OSTI as DE97740683
Submitting Site:
FI
Size:
pp. 345-354
Announcement Date:

Citation Formats

Paloposki, T, Hakala, J, Mannila, P, and Laukkanen, J. Injection of heavy fuel oil into the blast furnace. Finland: N. p., 1996. Web.
Paloposki, T, Hakala, J, Mannila, P, & Laukkanen, J. Injection of heavy fuel oil into the blast furnace. Finland.
Paloposki, T, Hakala, J, Mannila, P, and Laukkanen, J. 1996. "Injection of heavy fuel oil into the blast furnace." Finland.
@misc{etde_464567,
title = {Injection of heavy fuel oil into the blast furnace}
author = {Paloposki, T, Hakala, J, Mannila, P, and Laukkanen, J}
abstractNote = {This study deals with the injection and combustion of heavy fuel oil in blast furnaces. The injection of the oil was studied experimentally in a small-scale test rig. The combustion of the oil was analysed with a commercial computer program for flow and combustion simulations. Results from computer simulations show that the combustion of the oil can be improved by decreasing the size of the oil drops and by enhancing the mixing between the oil drops and the hot blast. The devolatilization rate of the oil mainly depends on the size of the oil drops. The combustion rate of the volatiles mainly depends on the effectiveness of turbulent mixing with combustion air. Methods to decrease the size of the oil drops were sought in the experimental part of the study. Experimental results show that the size of the oil drops increases with increasing mass flow rate of the oil and decreases with increasing velocity of the hot blast. Methods to improve the mixing between the oil drops and the hot blast are suggested but have not yet been experimentally tested. (author) (4 refs.)}
place = {Finland}
year = {1996}
month = {Dec}
}