2014-Sustainable Industrial Processing Summit
SIPS 2014 Volume 3: Non-ferrous & Iron_Steel
| Editors: | Kongoli F |
| Publisher: | Flogen Star OUTREACH |
| Publication Year: | 2014 |
| Pages: | 522 pages |
| ISBN: | 978-1-987820-05-8 |
| ISSN: | 2291-1227 (Metals and Materials Processing in a Clean Environment Series) |
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MODELING OF THE RUHRSTAHL HERAEUS (RH) DEGASSING PROCESS
Tanay Pandey1; Dieter Senk2; Ajay Shukla1;1IIT MADRAS, CHENNAI, India; 2INSTITUT FUR EISENHUTTENKUNDE, RWTH AACHEN, 52056 AACHEN, GERMANY, Aachen, Germany, Germany (Deutschland);
Type of Paper: Regular
Id Paper: 388
Topic: 4
Abstract:
A dynamic model based on effective equilibrium reaction zone approach was developed in this study to reproduce the decarburization behaviour in the Ruhrstahl Heraeus (RH) degassing process. The RH degassing process was conceptually divided into several reaction zones based on the physical description of reaction mechanisms. The volumes of the reaction zones were determined as function of RH process parameters. Calculation cycle of the dynamic model was established by developing a simplified process flow-sheet for the RH process. The flow-sheet based approach was implemented using the FactSage computational thermodynamics software package. Equilibrium files for each reaction zone in the flow-sheet were prepared using the Equilib module in FactSage. FactSage Equilib macro processing was used to perform cyclic calculations using the equilibrium files for each reaction zone. The FactSage macro was developed to take input data from and write output to an Excel spreadsheet. The calculated C profiles by the present model are in good agreement with the industrial data obtained from literature as well as shop floor data. Thus, the present model provides a useful tool to understand decarburization phenomena in the RH degassing process.