Effect of temperature on coke properties and CO2
The CO2 reactivity of the EBF cokes was measured by thermo-gravimetric analyser (TGA). The study demonstrated the strong effect of temperature on the modification of coke properties with special focus on carbon structure both under laboratory and experimental blast furnace conditions.
Get Price
Carbonisation Testing and Research
exposure of coke to a blast furnace environment. Coke test-work performed at the Coking Research Centre is completed according to Australian Standards (AS 1038.131990). NSC Reactivity testing When coke descends into the blast furnace the coke is subjected to abrasion (coke rubbing together and against the walls) and a
Get Price
Blast Furnace Coke Properties andDiVA portal
generally limited by the chemical reaction rate in the CSR/CRI test while in the blast furnace the reaction was limited by the diffusion rate. Coke degradation was therefore mostly restricted to the coke surface in the blast furnace. At a later EBF campaign off-gas dust was sampled during operation with different iron-bearing materials.
Get Price
Evolution of Coke Properties while Descending through a
Structure and Alkali Content of Coke in an Experimental Blast Furnace and Their Gasification Reaction. AIST 2004 T. Hilding s contributions see I. Tobias Hilding Kelli Kazuberns Sushil Gupta Veena Sahajwalla Richard Sakurovs B. Björkman and Jan-Olov Wikström. Effect of Temperature on Coke Properties and CO2 Reactivity under
Get Price
Why is CSR Important
test method as its standard procedure in 1993. the test determines both the coke reactivity Index or CRI and the coke strength after reaction or CSR of a given sample of coke. The standard ASTM test method D 5341 for measuring CRI and CSR requires reacting 200grams (0.44pounds) of 19 by 21mm (¾ by 7/8inch) dry coke with carbon dioxide
Get Price
Coke Reactivity Index Testing
ASTM D-5341 measures the met-coke reactivity index (CRI) and coke strength after reaction (CSR). Metallurgical coke is used in blast furnaces for steel and other hot metal production. During the feed process coke lumps descend into blast furnaces and are subjected to strong abrasion and CO2 counter-current flows.
Get Price
IGBR Metallurgical Coke
Coke reactivity index (CRI)It is measured by a laboratory test designed to simulate the loss of coke through reaction in the reducing atmosphere as the coke makes its way down the blast furnace. Coke is heated up to 950 ⁰C in an inert atmosphere and held at that temperature in an atmosphere of CO2.
Get Price
Evolution of Coke Properties while Descending through a
Structure and Alkali Content of Coke in an Experimental Blast Furnace and Their Gasification Reaction. AIST 2004 T. Hilding s contributions see I. Tobias Hilding Kelli Kazuberns Sushil Gupta Veena Sahajwalla Richard Sakurovs B. Björkman and Jan-Olov Wikström. Effect of Temperature on Coke Properties and CO2 Reactivity under
Get Price
Blast Furnace Coke Properties andDiVA portal
generally limited by the chemical reaction rate in the CSR/CRI test while in the blast furnace the reaction was limited by the diffusion rate. Coke degradation was therefore mostly restricted to the coke surface in the blast furnace. At a later EBF campaign off-gas dust was sampled during operation with different iron-bearing materials.
Get PriceIGBR Metallurgical Coke
Coke reactivity index (CRI)It is measured by a laboratory test designed to simulate the loss of coke through reaction in the reducing atmosphere as the coke makes its way down the blast furnace. Coke is heated up to 950 ⁰C in an inert atmosphere and held at that temperature in an atmosphere of CO2.
Get Price
Coke Reactivity under Blast Furnace Conditions and in the
Apr 23 2010 · The results indicate that reaction with CO 2 is generally limited by the chemical reaction rate in the CSR/CRI test while in the blast furnace the reaction is limited by the diffusion rate. Coke degradation is therefore mostly restricted to the coke surface in the blast furnace.
Get Price
Carbonisation Testing and Research
exposure of coke to a blast furnace environment. Coke test-work performed at the Coking Research Centre is completed according to Australian Standards (AS 1038.131990). NSC Reactivity testing When coke descends into the blast furnace the coke is subjected to abrasion (coke rubbing together and against the walls) and a
Get Price
Coke Reactivity Index Testing
ASTM D-5341 measures the met-coke reactivity index (CRI) and coke strength after reaction (CSR). Metallurgical coke is used in blast furnaces for steel and other hot metal production. During the feed process coke lumps descend into blast furnaces and are subjected to strong abrasion and CO2 counter-current flows.
Get Price
Petroleum cokeWikipedia
Petroleum coke abbreviated coke or petcoke is a final carbon-rich solid material that derives from oil refining and is one type of the group of fuels referred to as cokes.Petcoke is the coke that in particular derives from a final cracking process—a thermo-based chemical engineering process that splits long chain hydrocarbons of petroleum into shorter chains—that takes place in units
Get PriceEffect of Temperature on Coke Properties and CO2
Effect of Temperature on Coke Properties and CO 2 Reactivity Under Laboratory Conditions and in an Experimental Blast Furnace 1Tobias Hilding 2Kelli Kazuberns 2Sushil Gupta 2Veena Sahajwalla 3Richard Sakurovs 1B. Björkman and 1Jan-Olov Wikström 1MEFOS/Luleå University of Technology S-971 87 Luleå Sweden
Get Price
Development of Ferro-Coke Process for Mitigating CO2
Development of Ferro-Coke Process for Mitigating CO2 Emissions in Ironmaking Photo Test production facility for the innovative binder Capacity 0.1 ton-coal/day Ferro-coke Coke Blast furnace Inner reaction simulator 30 of conventional coke was replaced with Ferro-coke.
Get Price
Effect of Temperature on Coke Properties and CO2
Effect of Temperature on Coke Properties and CO 2 Reactivity Under Laboratory Conditions and in an Experimental Blast Furnace 1Tobias Hilding 2Kelli Kazuberns 2Sushil Gupta 2Veena Sahajwalla 3Richard Sakurovs 1B. Björkman and 1Jan-Olov Wikström 1MEFOS/Luleå University of Technology S-971 87 Luleå Sweden
Get Price
UNIVERSITY OF CAMBRIDGE INTERNATIONAL
Describe a test for sulfur dioxide. B10 Iron is extracted by reducing iron ore in a blast furnace. The raw materials used are iron ore Coke burns in oxygen to form carbon dioxide. Explain in terms of bond breaking and bond making why this reaction is exothermic.
Get PriceDevelopment of Ferro-Coke Process for Mitigating CO2
Development of Ferro-Coke Process for Mitigating CO2 Emissions in Ironmaking Photo Test production facility for the innovative binder Capacity 0.1 ton-coal/day Ferro-coke Coke Blast furnace Inner reaction simulator 30 of conventional coke was replaced with Ferro-coke.
Get Price
Evolution of Coke Properties while Descending through a
Structure and Alkali Content of Coke in an Experimental Blast Furnace and Their Gasification Reaction. AIST 2004 T. Hilding s contributions see I. Tobias Hilding Kelli Kazuberns Sushil Gupta Veena Sahajwalla Richard Sakurovs B. Björkman and Jan-Olov Wikström. Effect of Temperature on Coke Properties and CO2 Reactivity under
Get Price
OULU 2016 ACTA
100 vol- CO2 did not directly correlate with reactivity in a simulated blast furnace shaft gas which suggest that the widely utilised CRI test does not accurately estimate coke reactivity in the industrial blast furnace process. Keywords blast furnace coke
Get PriceCoke Strengthan overview ScienceDirect Topics
NSC test determines the Coke Strength after Reaction (CSR). The CSR value is measured in one test procedure with CRI under gasification of the coke sample with carbon dioxide and expressed by the grain size portion (in ) 10 mm after 600 revolutions at 20 rev.min − 1 (American Society for Testing and Materials 1993 Menéndez et al. 1999).
Get Price
Coal Coke Test Equipment Carbolite Gero
Coal Coke Test Equipment Пещи за специфични приложения Продукти CO 2 Reactivity Test FurnaceCRF/1. CO2 reactivity test furnace acc. to ISO and BS 6043-2.20.1 Максимална температура 1000 °C
Get Price
Carbonisation Testing and Research
exposure of coke to a blast furnace environment. Coke test-work performed at the Coking Research Centre is completed according to Australian Standards (AS 1038.131990). NSC Reactivity testing When coke descends into the blast furnace the coke is subjected to abrasion (coke rubbing together and against the walls) and a
Get Price
Effect of temperature on coke properties and CO2
The CO2 reactivity of the EBF cokes was measured by thermo-gravimetric analyser (TGA). The study demonstrated the strong effect of temperature on the modification of coke properties with special focus on carbon structure both under laboratory and experimental blast furnace conditions.
Get PriceCRF/1 Carbolite Gero
The CRF/1 CO 2 reactivity test furnace complies with the Standard test method for the determination by a loss in mass method of the reactivity to carbon dioxide of calcined petroleum coke used in the manufacture of anodes for the production of aluminium. The furnace conforms to the following Standards ISO Carbonaceous materials used in the production of aluminium -- Calcined coke
Get Price
(PDF) QUALITY OF COKE USED IN BLAST FURNACE PROCESS
The CRI (coke reactivity index) is based on gasification of 200 g of a coke sample with the grain siz e of 20 ± 1 mm in a CO 2 stre am at a temperature of 1373K and determination of percentage
Get PriceCoke Strengthan overview ScienceDirect Topics
NSC test determines the Coke Strength after Reaction (CSR). The CSR value is measured in one test procedure with CRI under gasification of the coke sample with carbon dioxide and expressed by the grain size portion (in ) 10 mm after 600 revolutions at 20 rev.min − 1 (American Society for Testing and Materials 1993 Menéndez et al. 1999).
Get PriceCO2-REACTIVITY OF HEAT-TREATED METALLURGICAL COKE
Jan 01 1991 · The subsequent reactivity test was carried out using the NSC test procedure for the determination of reactivity and post-reaction-strength of coke . The main features of this test are 200 g sample size (1922.4 mm grain size) 2 h reaction with CO 2 (100 ) at 1100 C gas flow rate of 0.3 m 3 /h. The reactivity index CRI is determined as
Get Price
