Model of an iron ore sinter plant with selective waste gas recirculation
The use of sinter influences hot metal production substantially and significantly affects an integrated steel mill’s total emissions. Sintering of iron ores is an enormous energy-intensive and resources consuming process. Introducing a selective waste gas recirculation (SWGR) to the sintering proces...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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KeAi Communications Co., Ltd.
2022-03-01
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| Series: | Carbon Resources Conversion |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2588913322000011 |
| _version_ | 1811329632738213888 |
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| author | Johannes Niel Bernd Weiss Walter Wukovits |
| author_facet | Johannes Niel Bernd Weiss Walter Wukovits |
| author_sort | Johannes Niel |
| collection | DOAJ |
| description | The use of sinter influences hot metal production substantially and significantly affects an integrated steel mill’s total emissions. Sintering of iron ores is an enormous energy-intensive and resources consuming process. Introducing a selective waste gas recirculation (SWGR) to the sintering process reduces the energy consumption, stack gas volume flow, and sulfur dioxide emissions of an iron sinter production. Simulating this complex process in flowsheet simulations of integrated iron and steelworks is a fast and cost-effective opportunity to validate new operation settings. The implementation of a sinter plant in gPROMS ModelBuilder®characterizes the sintering processes by three main sub-models. A burner model describes the gas combustion, a black-box model consider the main sintering processes, and a wind box model divides the total off-gas into a recycle gas and a stack gas. A specific temperature polynomial represents the temperature distribution across the wind boxes to allow detailed investigations on SWGR in complex flowsheet simulations. Implementing SWGR to the sintering process, the model shows a reduction of coke consumption, stack gas flow rate, and sulfur dioxide emissions by 11%, 27%, and 27%, respectively. In the SWGR scenario, the utilization rate of carbon monoxide increases and less coke is consumed. The chlorine emissions of the sintering process differ with and without SWGR insignificantly. |
| first_indexed | 2024-04-13T15:47:14Z |
| format | Article |
| id | doaj.art-2493b97810724b8383711688a820252e |
| institution | Directory Open Access Journal |
| issn | 2588-9133 |
| language | English |
| last_indexed | 2024-04-13T15:47:14Z |
| publishDate | 2022-03-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Carbon Resources Conversion |
| spelling | doaj.art-2493b97810724b8383711688a820252e2022-12-22T02:40:56ZengKeAi Communications Co., Ltd.Carbon Resources Conversion2588-91332022-03-01517183Model of an iron ore sinter plant with selective waste gas recirculationJohannes Niel0Bernd Weiss1Walter Wukovits2TU Wien, Institute of Chemical, Environmental and Bioscience Engineering, Getreidemarkt 9/166, 1060 Vienna, Austria; Corresponding author.Primetals, Primetals Technologies Austria GmbH, Linz, AustriaTU Wien, Institute of Chemical, Environmental and Bioscience Engineering, Getreidemarkt 9/166, 1060 Vienna, AustriaThe use of sinter influences hot metal production substantially and significantly affects an integrated steel mill’s total emissions. Sintering of iron ores is an enormous energy-intensive and resources consuming process. Introducing a selective waste gas recirculation (SWGR) to the sintering process reduces the energy consumption, stack gas volume flow, and sulfur dioxide emissions of an iron sinter production. Simulating this complex process in flowsheet simulations of integrated iron and steelworks is a fast and cost-effective opportunity to validate new operation settings. The implementation of a sinter plant in gPROMS ModelBuilder®characterizes the sintering processes by three main sub-models. A burner model describes the gas combustion, a black-box model consider the main sintering processes, and a wind box model divides the total off-gas into a recycle gas and a stack gas. A specific temperature polynomial represents the temperature distribution across the wind boxes to allow detailed investigations on SWGR in complex flowsheet simulations. Implementing SWGR to the sintering process, the model shows a reduction of coke consumption, stack gas flow rate, and sulfur dioxide emissions by 11%, 27%, and 27%, respectively. In the SWGR scenario, the utilization rate of carbon monoxide increases and less coke is consumed. The chlorine emissions of the sintering process differ with and without SWGR insignificantly.http://www.sciencedirect.com/science/article/pii/S2588913322000011 |
| spellingShingle | Johannes Niel Bernd Weiss Walter Wukovits Model of an iron ore sinter plant with selective waste gas recirculation Carbon Resources Conversion |
| title | Model of an iron ore sinter plant with selective waste gas recirculation |
| title_full | Model of an iron ore sinter plant with selective waste gas recirculation |
| title_fullStr | Model of an iron ore sinter plant with selective waste gas recirculation |
| title_full_unstemmed | Model of an iron ore sinter plant with selective waste gas recirculation |
| title_short | Model of an iron ore sinter plant with selective waste gas recirculation |
| title_sort | model of an iron ore sinter plant with selective waste gas recirculation |
| url | http://www.sciencedirect.com/science/article/pii/S2588913322000011 |
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