- Title
- Effect of mineral matter on the reactivity of coke and its replication in a coke analogue
- Creator
- Longbottom, Raymond James; Monaghan, Brian Joseph; Chowdhury, Azrin Akhter; Reid, Mark Henry; Zhang, Guangqing; Mahoney, Merrick Russel; Hockings, Kim
- Relation
- ISIJ International Vol. 56, Issue 9, p. 1553-1558
- Publisher Link
- http://dx.doi.org/10.2355/isijinternational.ISIJINT-2015-597
- Publisher
- Iron and Steel Institute of Japan
- Resource Type
- journal article
- Date
- 2016
- Description
- The reactivity of coke analogues doped with minerals to mimic the mineralogy of specific industrial cokes was compared with the reactivity of the industrial cokes. The reactivity was assessed in a pseudo-CRI type test. This involved reacting the carbonaceous materials (analogue and industrial coke) in CO₂ at 1 100°C in a thermos-gravimetric system. In this comparison, the mineral matter added to the coke analogue was prepared from ashing of the industrial cokes. A distinct ranking of reactivity for the industrial cokes was determined to be coke A < coke B < coke C. The high reactivity of coke C was attributed to the high iron content in its ash. The higher reactivity of coke B over coke A was attributed to its higher porosity and lower rank (of the original coal carbon type) of the industrial cokes. The coke analogue replicated the increased reactivity of coke C over cokes A and B, indicating that the coke analogue is able to some extent to replicate the effect of coke mineralogy on coke reactivity in CO₂. The use of the coke analogue allowed assessment of the difference in the reactivities of cokes A and B. When porosity and carbon type were fixed by use of the analogue, the reactivities of the analogues of cokes A and B were found to be similar.
- Subject
- metallurgical coke; coke analogue; reactivity; CRI; minerals
- Identifier
- http://hdl.handle.net/1959.13/1319201
- Identifier
- uon:23808
- Identifier
- ISSN:0915-1559
- Language
- eng
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