Numerical Modeling of Volatile Organic Compounds (VOC) Emissions during Preheating of Magnesia-Carbon Bricks in a Basic Oxygen Furnace
The refractory preheating process in oxygen furnaces is a dynamic input of energy in a chemically complex system requiring special attention to chemical emissions relative to permissible release limits. This particular industrial and regulatory interest is the emission of volatile organic compounds...
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| Format: | Article |
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MDPI AG
2020-09-01
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| Series: | Metals |
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| Online Access: | https://www.mdpi.com/2075-4701/10/10/1277 |
| _version_ | 1797552835761537024 |
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| author | Soumitra Kumar Dinda Kinnor Chattopadhyay |
| author_facet | Soumitra Kumar Dinda Kinnor Chattopadhyay |
| author_sort | Soumitra Kumar Dinda |
| collection | DOAJ |
| description | The refractory preheating process in oxygen furnaces is a dynamic input of energy in a chemically complex system requiring special attention to chemical emissions relative to permissible release limits. This particular industrial and regulatory interest is the emission of volatile organic compounds (VOC), given their detrimental impacts on human health. In the present work, a mathematical model was developed to predict the emission rates of volatile organics during the preheating of a 260-ton basic oxygen furnace. A numerical heat transfer model was developed using finite difference techniques to obtain the thermal profile and then integrated with chemical thermodynamics using FactSage 7.0 (CRCT, Polytechnique Montreal Quebec Canada, H3C 3A7). The parameters that affected VOC emissions were preheating process times, burner gas composition, heating rate, and burner geometry. Two different preheating procedures were compared, and emission rates were predicted with extended use of a top burner providing the greatest degree of emissions control. The mathematical model was validated against plant data with respect to average emission rates of CO, CO<sub>2</sub>, SO<sub>X</sub>, and NO<sub>X</sub>. |
| first_indexed | 2024-03-10T16:06:38Z |
| format | Article |
| id | doaj.art-6409fd18a9d946fa973dd035ad91f09f |
| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-03-10T16:06:38Z |
| publishDate | 2020-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Metals |
| spelling | doaj.art-6409fd18a9d946fa973dd035ad91f09f2023-11-20T14:47:32ZengMDPI AGMetals2075-47012020-09-011010127710.3390/met10101277Numerical Modeling of Volatile Organic Compounds (VOC) Emissions during Preheating of Magnesia-Carbon Bricks in a Basic Oxygen FurnaceSoumitra Kumar Dinda0Kinnor Chattopadhyay1Department of Materials Science and Engineering, Process Metallurgy Research Laboratory, Computational Materials Engineering Laboratory, University of Toronto, Toronto, ON M5S 3E4, CanadaDepartment of Materials Science and Engineering, Process Metallurgy Research Laboratory, Computational Materials Engineering Laboratory, University of Toronto, Toronto, ON M5S 3E4, CanadaThe refractory preheating process in oxygen furnaces is a dynamic input of energy in a chemically complex system requiring special attention to chemical emissions relative to permissible release limits. This particular industrial and regulatory interest is the emission of volatile organic compounds (VOC), given their detrimental impacts on human health. In the present work, a mathematical model was developed to predict the emission rates of volatile organics during the preheating of a 260-ton basic oxygen furnace. A numerical heat transfer model was developed using finite difference techniques to obtain the thermal profile and then integrated with chemical thermodynamics using FactSage 7.0 (CRCT, Polytechnique Montreal Quebec Canada, H3C 3A7). The parameters that affected VOC emissions were preheating process times, burner gas composition, heating rate, and burner geometry. Two different preheating procedures were compared, and emission rates were predicted with extended use of a top burner providing the greatest degree of emissions control. The mathematical model was validated against plant data with respect to average emission rates of CO, CO<sub>2</sub>, SO<sub>X</sub>, and NO<sub>X</sub>.https://www.mdpi.com/2075-4701/10/10/1277KOBM processvolatile organic compoundssulphur compoundsFactSagemodel validation |
| spellingShingle | Soumitra Kumar Dinda Kinnor Chattopadhyay Numerical Modeling of Volatile Organic Compounds (VOC) Emissions during Preheating of Magnesia-Carbon Bricks in a Basic Oxygen Furnace Metals KOBM process volatile organic compounds sulphur compounds FactSage model validation |
| title | Numerical Modeling of Volatile Organic Compounds (VOC) Emissions during Preheating of Magnesia-Carbon Bricks in a Basic Oxygen Furnace |
| title_full | Numerical Modeling of Volatile Organic Compounds (VOC) Emissions during Preheating of Magnesia-Carbon Bricks in a Basic Oxygen Furnace |
| title_fullStr | Numerical Modeling of Volatile Organic Compounds (VOC) Emissions during Preheating of Magnesia-Carbon Bricks in a Basic Oxygen Furnace |
| title_full_unstemmed | Numerical Modeling of Volatile Organic Compounds (VOC) Emissions during Preheating of Magnesia-Carbon Bricks in a Basic Oxygen Furnace |
| title_short | Numerical Modeling of Volatile Organic Compounds (VOC) Emissions during Preheating of Magnesia-Carbon Bricks in a Basic Oxygen Furnace |
| title_sort | numerical modeling of volatile organic compounds voc emissions during preheating of magnesia carbon bricks in a basic oxygen furnace |
| topic | KOBM process volatile organic compounds sulphur compounds FactSage model validation |
| url | https://www.mdpi.com/2075-4701/10/10/1277 |
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