Journal ArticleDOI
Applications of microscopy to coke making
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TLDR
A Canadian perspective of the petrographic, thermal rheological and grade of metallurgical coals required to make coke with high strength and strength after reaction (CSR) properties is presented in this paper.About:
This article is published in International Journal of Coal Geology.The article was published on 1991-12-01. It has received 35 citations till now. The article focuses on the topics: Coke & Vitrinite.read more
Citations
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Coal for metallurgical coke production: predictions of coke quality and future requirements for cokemaking
TL;DR: In this paper, the quality requirements of metallurgical coke for the blast furnace, coke structure, and relationships between structure and quality are reviewed. And a review of current coke production and coal demand in the steelmaking industry, globally, followed by a preview of possible future alternative coking technologies.
Journal ArticleDOI
Pore size distribution and accessible pore size distribution in bituminous coals
Richard Sakurovs,Lilin He,Yuri B. Melnichenko,A.P. Radlinski,A.P. Radlinski,Tomasz Blach,Hartmut Lemmel,David F. R. Mildner +7 more
TL;DR: In this paper, small-angle neutron scattering (SANS) and ultra-small-angle Neutron Scattering (USANS) are used to characterize the porosity and pore size distribution of coal.
Journal Article
Pore size distribution and accessible pore size distribution in bituminous coals
Richard Sakurovs,Lilin He,Yuri B. Melnichenko,A.P. Radlinski,Tomasz Blach,Hartmut Lemmel,David F. R. Mildner +6 more
TL;DR: In this paper, the authors used USANS/SANS to examine 24 bituminous and sub-bituminous coal coals and determined the relationship of the scattering intensity corresponding to different pore sizes with other coal properties.
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Mineralogy and reactivity of cokes in a working blast furnace
Sushil Gupta,ZhuoZhu Ye,Byong-chul Kim,Byong-chul Kim,Olavi Kerkkonen,Riku Kanniala,Veena Sahajwalla +6 more
TL;DR: In this paper, tuyere level cokes from a blast furnace were examined using a scanning electron microscope and the apparent CO2 reaction rates were measured using a fixed bed reactor.
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Relationships between the optical reflectance of coal blends and the microscopic characteristics of their cokes
TL;DR: In this paper, the authors investigated the relationship between optical properties of various coal blends and their resulting cokes and found that the degree of optical anisotropy of coke depended not only on the rank but also on the coking properties of parent coal.
References
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Journal ArticleDOI
Carbonization reactions of inertinite macerals in Australian coals
TL;DR: In this article, it was found that an inverse relationship exists between the level of precarbonization reflectance (PCR) of inertinite and the reflectance and bireflectance of its coke, and that the proportion of reactive inertinite is larger than allowed for in most petrography-based coke stability calculations.
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The molecular basis of coal thermoplasticity
TL;DR: In this article, the molecular mobility of Australian bituminous coals during heating and pyrolysis to 875 K has been studied by proton nuclear magnetic resonance (1H nm.r.) thermal analysis.
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A progress report on the Alpern Coal Classification
TL;DR: The Alpern coal classification has been widely used and successfully applied, both to Laurasian (North Atlantic) and Gondwana coals as discussed by the authors, and it has been recently also partly adopted by the Economic Commission for Europe of the United Nations in Geneva (1988).
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Nature and thermal behaviour of semi-fusinite in Cretaceous coal from western Canada
TL;DR: In this paper, pure macerals of vitrinite, semi-fusinite and fusinite were heated on a Leitz heating-stage microscope to determine their melting character quantitatively.
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On the identification and origin of pseudovitrinite
TL;DR: In this paper, the authors used petrographically and through Gieseler plastometry to identify slitted pseudovitrinite, an oxidation product of vitrinite that is intermediate, in terms of degree of oxidation, between the two classes of compounds.