The entire coking process will be described, starting with the different coal fields around the world and the different kinds of coals and their classification. This will be followed by a description of the coke plant itself, the various refractory designs and materials used and the different designs of coke ovens and their operation. An explanation of what happens with the coal when it is charged in the oven chamber is followed by details of how coke quality is influenced by charging the coal blend, and by the operating conditions within the blast furnace. We conclude with a view into the future of coke oven design.
Ingomar Köhler, Consultant, PROCOMCO, Germany
Jan Soonius, Managing Director, HeatTeQ, The Netherlands
Alessandro Sciamarelli | Senior Economic Analysis Manager of European Steel Association (EUROFER)
Jim Truman | Director - Global Metallurgical Coal Markets of Wood Mackenzie, USA
Jeffery Lu | Managing Editor, Metallurgical Coal & Coke of S&P Global Platts, Singapore
Dr. Ahmed S. Firoz | Former Chief Economist of Economic Research Unit, Ministry of Steel Government of India; Member Expert Group on Mines of Niti Aayog, India
Peter Liszio | Senior Division Manager OU/Hot Metal/Coking Plant of ThyssenKrupp Steel Europe AG, Germany
Martin Pei | Executive Vice President and CTO of SSAB AB; Chairman of Board, Hybrit Development AB, Sweden
Maximilian Hoven | Project Manager of DMT GmbH & Co. KG, Germany
Coke strength after reaction (CSR) is a worldwide accepted and standardized measurement and one of the most important parameters to assess metallurgical coke quality. This despite the fact CSR is not an intrinsic coal characteristic, it is a part of the commercial language in coal trading and metallurgical coke industry.
Currently in Europe and in coal supplying countries there are numerous pilot facilities and coal assessment laboratory equipment used for coke quality that cannot be compared without difficulty. Separately testing gives its own coke CSR value, which is closely connected with carbonization conditions of the testing Laboratory.
Against this background, the RFCS Project ESTIVAL picks up these points to understand the influence of carbonization conditions during coke manufacturing on CSR and to identify the differences of CSR under different carbonization conditions.
David Pearson | CEO & Founder of Pearson Coal Petrography Inc, Canada
From the outset, coke petrography involved manual point counting of microtextures in fused coke, which were used to predict Romax of parent coals, and among blend cokes, a bimodal distribution of two log-normal microtextural populations went unrecognized.
Today, imaging techniques impact the petrographic analysis of blend cokes; for example, pore shapes and sizes which develop in response to gas pressure, further refine source-material recognition. Stretched and pulled-apart pore walls are indicative of high-pressure gas trapped by impervious thickened plastic layers. In contrast, granular inertinite-rich cokes are produced from thin plastic layers that provide no resistance to gas pressure. Identification of the iconic coke texture, Encapsulite, is an example of application of imaging techniques. This texture can only develop when already-melted fluid-vitrinite engulfs not-yet softened coal grains; the latter subsequently melt at a higher temperature, cocooned by a now-solidifying semicoke. These late-melting kernels are identified in blended cokes by their oval shapes, reflectance contrast, and internal textures indicative of trapped high-pressure gas, or steam. They originate from either vitrinites of low-rank soft coking coals, or from fusible-inertinites of high rank coals, and both significantly improve coke strength.
The talk will illustrate recent progress made by imaging technologies and applied to blended cokes.
Dongmin Jang | Principal Researcher, PhD, Ironmaking and FINEX Research Group of POSCO Research Laboratory, Korea
Evgenii Volkov | Leading Expert, Ironmaking of PAO Severstal, Russia
To be confirmed | TBC of ACRE Coking & Refractory Engineering Consulting Corporation, MCC, China
Gurvinder Singh Jagdev | Sr. Manager, Battery 8&9 Operation & Heating, Coke Plant of TATA Steel Limited, India
Developing coal blend models linking interdependent input blend coal properties to output coal quality and process parameters. The models have been developed based on the operating data for the last 3 years for the different coal blend quality parameters and process parameters. The models consist of coke CSR time series equations and coal optimisation models running in tandem. Thus by knowing the input qualities of coals used in coke manufacture, the expected coke quality can be determined.
Ajay Mishra | Executive Director, Global Head of Metallurgical Coal & Coke, Carbon Steel Materials of Noble Resources, Singapore
Mark A. Kirkbride | CEO of West Cumbria Mining Ltd, UK
Since 2014 West Cumbria Mining has been working on the development of a new underground metallurgical coal mine, Woodhouse Colliery, in the UK. The presentation will summarise the project status, mining method, coal quality, logistics and key environmental & social governance plans
Larry Runner | Vice President Technical Marketing of Arch Coal, Inc, USA
Aleksander Sobolewski | Director of Institute for Chemical Processing of Coal, Poland
Dr.-Ing. Joanna Kühn-Gajdzik | Senior Process Engineer - Coke Plant Technologies / Gas Cleaning of ThyssenKrupp Industrial Solutions AG, Germany
The task of by-product plant is to liberate coke oven gas obtained on coal carbonization from various constituents such as H2H, NH3, light aromatics (BTX) and HCN and to upgrade water obtained so as to be able to pass it on to a waste water cleaning facility and to process by-product such as crude benzole, tar and sulfur to get saleable products.
In the past the most of the emissions of the coke plant have been reduced, but an emission-free by-product plant was never achieved. Nowadays most of the products can be more economically manufactured using other technologies. Therefore, with some exceptions depending on local economics, the main emphasis of a modern coke by-product plant is to treat the coke oven gas sufficiently so that it can be used as clean, environmentally friendly fuel. The only products of ThyssenKrupp Industrial Solutions by-product plant are: cleaned COG, saleable products and water in river quality. The innovations used to achieve this will be discussed.
Huub Schulte | Works Engineer Coke and Gas Plants of Tata Steel Europe, Netherlands
Oana Niculita | Head of Sales and Marketing of John M Henderson, UK
Mauricio Castro | Chief Representative - Colombia of Square Resources, Columbia
Featuring speakers from John M Henderson, HeatTeQ, Wood Mackenzie, Coalbiz, Institiute for Chemical Processing of Coal and Thyssenkrupp Steel Europe