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Title: Mathematical modeling of pneumatic char injection in a direct reduction rotary kiln

Abstract

A one-dimensional steady-state mathematical model is proposed for direct reduction process in rotary kilns akin to the SL/RN process. The model takes into account pneumatic coal char injection from the discharge end of the kiln to supplement the heat availability. The model is based on material and energy conservation principles, and the empirical equations for kinetics and heat transfer are obtained from the literature. Predictions are carried out for both iron oxide reduction and ilmenite beneficiation processes. Improvement in the performance was predicted with pneumatic char injection.

Authors:
;
Publication Date:
Research Org.:
Indian Inst. of Tech., Madras (IN)
OSTI Identifier:
20001690
Resource Type:
Journal Article
Journal Name:
Metallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Science
Additional Journal Information:
Journal Volume: 30; Journal Issue: 5; Other Information: PBD: Oct 1999
Country of Publication:
United States
Language:
English
Subject:
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; REDUCTION; IRON OXIDES; ILMENITE; KILNS; MATHEMATICAL MODELS; CHARS; COAL; INJECTION; HEAT TRANSFER; KINETICS

Citation Formats

Ramakrishnan, V, and Sai, P S.T. Mathematical modeling of pneumatic char injection in a direct reduction rotary kiln. United States: N. p., 1999. Web. doi:10.1007/s11663-999-0102-x.
Ramakrishnan, V, & Sai, P S.T. Mathematical modeling of pneumatic char injection in a direct reduction rotary kiln. United States. https://doi.org/10.1007/s11663-999-0102-x
Ramakrishnan, V, and Sai, P S.T. 1999. "Mathematical modeling of pneumatic char injection in a direct reduction rotary kiln". United States. https://doi.org/10.1007/s11663-999-0102-x.
@article{osti_20001690,
title = {Mathematical modeling of pneumatic char injection in a direct reduction rotary kiln},
author = {Ramakrishnan, V and Sai, P S.T.},
abstractNote = {A one-dimensional steady-state mathematical model is proposed for direct reduction process in rotary kilns akin to the SL/RN process. The model takes into account pneumatic coal char injection from the discharge end of the kiln to supplement the heat availability. The model is based on material and energy conservation principles, and the empirical equations for kinetics and heat transfer are obtained from the literature. Predictions are carried out for both iron oxide reduction and ilmenite beneficiation processes. Improvement in the performance was predicted with pneumatic char injection.},
doi = {10.1007/s11663-999-0102-x},
url = {https://www.osti.gov/biblio/20001690}, journal = {Metallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Science},
number = 5,
volume = 30,
place = {United States},
year = {Fri Oct 01 00:00:00 EDT 1999},
month = {Fri Oct 01 00:00:00 EDT 1999}
}