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Coke Reactivity under Blast Furnace Condition and in the ...

COKE REACTIVITY UNDER BLAST FURNACE CONDITION AND IN THE CSR/CRI TEST Maria Lundgren1, Bo Björkman1, Lena Sundqvist Ökvist2 1Luleå University of Technology, SE-971 87 Luleå, Sweden 2 MEFOS, Box 812, SE-971 25 Luleå, Sweden Abstract The present work aims to study the high-temperature strength of coke.


Coal Testing & inspection - Cita Logistics LLC

Coal Testing & inspection CITA Energy Services is an independent laboratory and inspection agency that has served the global coal industry for over four decades. We provide accurate and independent testing services as well as comprehensive and reliable supervisory controls.


Metallurgical Coke Testing Laboratory | Mitra S.K.

Metallurgical coke is used as a fuel and as a reducing agent in smelting iron ore in a blast furnace. The coking coal should be low in sulphur and phosphorus so that they do not migrate to the metal. MSK has been doing metallurgical coke testing for a very long time and are experts in the industry.


Blast furnace and metallurgical coke's reactivity and its ...

Blast furnace and metallurgical coke's reactivity and its determination by thermal gravimetric analysis J. I. Rodero1, J. Sancho-Gorostiaga1, M. Ordiales1, D. Ferna´ndez-Gonza´lez1, J. Mocho´n2, I. Ruiz-Bustinza2, A. Fuentes3 and L. F. Verdeja1 The aim of the present work is to adapt tests that are typically used for blast furnace cokes, such


Coke Reactivity Index (CRI) Testing Code Interpretation ...

Oct 04, 2013· Dear Sir, With reference to interpretation of code D5341 I would like to get some help with respect to the fact that the repeatability of the parameters like CRI is defined as within 2.8% under the ASTM standard, whereas our specifications itself is mentioning the Min Max variation of 2% ( …


Coke CRI CSR Test system for coke - RB Automazione

The CRI CSR Test System is an automatic device for determination of the Coke Reactivity Index (CRI) and Coke Strength after Reaction (CSR). This test device is fully compliant with the specifications in ISO 18894, ASTM D 5341 and IS 4023 Meth. B Standards. Both indexes C.R.I. and C.S.R. are probably the most important parameters used for assessment of the quality of metallurgical coke.


Coal Inspection and Testing - Intertek

Coal and solid fuel testing: Coal, coke and fly ash inspection and testing services are available on a global basis, including Australia, China, Canada, and the USA. Petroleum Coke and Fly Ash Testing; Coke Reactivity Index


Coke Reactivity and Characterisation - ACARP

In trying to relate coke quality to its ultimate use in the blast furnace, one of the primary attributes of the coke quality is the coke strength. The Coke Reactivity test is a highly regarded measure of the performance of coal. This test has two components; the Coke Reactivity Index (CRI) and the Coke Strength after Reaction (CSR).


Variability of metallurgical coke reactivity under the NSC ...

Apr 01, 2019· Coke reactivity index (CRI) and coke strength after reaction (CSR) were determined following the ISO standard .However, custom made sample holder was used to arrange the coke particles in separated segments and layers as shown in Fig. 1.Thus the order of particles within a layer was fixed and first particle in each layer was constantly in the same relative position in the furnace.


Carbonisation Testing and Research

has on the coke. NSC reactivity testing is designed to determine the Coke Reactivity Index (CRI) and Coke Strength after Reaction (CSR). The method simulates the changes in coke strength resulting from exposure of coke to a blast furnace environment. Coke test-work performed at the Coking Research Centre is completed according to


Metallurgical Coal and Coke Testing - sgs.com

COKE PHYSICAL TESTING Several tests are used to measure the physical properties of blast furnace coke however the ASTM, ISO Micum/IRSID and JIS tumbler tests, and the coke reactivity/coke strength after reaction test, are the most commonly performed. COKE REACTIVITY INDEX (CRI) AND COKE STRENGTH AFTER REACTION (CSR) When coke descends in the blast


Coke Reactivity Index Testing - Intertek

Metallurgical coke reactivity index testing, using ASTM test method D-5341, is provided by Intertek. 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 ...


ASTM and US EPA Tests | Mining | SGS

SGS is a trusted leader in testing and analytical services. We are internationally recognized for our fit-for-purpose testing and high testing standards. Analytical professionals working in our global network of fully-equipped, independent laboratories conduct tests under the strictest quality controls.


Coke texture, reactivity and tumbler strength after ...

Sep 01, 2019· With the increasing demands for stronger coke, it is necessary to produce cokes with appropriate reactivity and high strength after reaction. At present, GB/T 4000-2008 "Determination of coke reactivity index (CRI) and coke strength after reaction (CSR)" is the standard method of measuring reactivity and strength after reaction of coke in ...


Coke Reactivity Index / Strength Test System

The Coke Reactivity Index / Strength Test System CRI CSR Test System is an automatic device for determination of the Coke Reactivity Index (CRI) and Coke Strength after Reaction (CSR). This Coke Reactivity Index / Strength Test System device is fully compliant with the specifications in the International Standards ASTM D 5341 and ISO 18894.


Metallurgical Coal and Coke Testing

COKE PHYSICAL TESTING Several tests are used to measure the physical properties of blast furnace coke however the ASTM, ISO Micum/IRSID and JIS tumbler tests, and the coke reactivity/coke strength after reaction test, are the most commonly performed. COKE REACTIVITY INDEX (CRI) AND COKE STRENGTH AFTER REACTION (CSR) When coke descends in the blast


In Coke Testing - Coke Reactivity Index (CRI) | Coke ...

Coke Reactivity Index (CRI) and Coke Strength After Reaction (CSR) To determine the CRI/CSR of Coke. Complies with ASTM D5341. Advanced designed Coke Reactivity Applied Test System in conjunction with the Coke Strength Tumbler Test procedure provide a high quality, precision system for determining Coke Reactivity Index (CRI) and Coke Strength After Reaction (CSR) according to …


Coke strength after reaction - Wikipedia

The percentage weight loss is known as the reactivity (CRI). The reacted coke is placed in an I-type drum (no lifters) and subjected to 600 revolutions in 30 minutes. The percent of carbon material removed from the drum that is +10 mm is known as the coke strength after reaction (CSR).


Coke -- Determination of coke reactivity index (CRI) and ...

Coke -- Determination of coke reactivity index (CRI) and coke strength after reaction (CSR) ISO 18894:2018 specifies the equipment and techniques used for determining lump-coke (nominal top size >20 mm) reactivity in carbon dioxide gas at elevated temperatures and its strength after reaction in carbon dioxide gas by tumbling in a cylindrical ...