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Perspectives of Ukrainian Coke Industry Development for Blast Furnace Production

This presentation explores the development of the Ukrainian coke industry and its impact on blast furnace production. It covers the structure of coke production, trends in coke import, properties of coal blends, different types of coke structure, reactivity and strength of carbonic materials, as well as the development of rational raw base for coking and final coke treatment.

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Perspectives of Ukrainian Coke Industry Development for Blast Furnace Production

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  1. Perspectives of Development of Ukrainian Coke Industry according to requirements of blast furnace production Eugene . Kovalov, Dr. Sci. (Eng.) Ukrainian State research institute of Carbochemistry 2007

  2. Coke plants of Ukraine СЛАЙД 1

  3. Structure of Ukrainian Coke Production 56 coke oven battery Coke Plants -12 GIPROKOKS Coke Operations - 2 Phenol plant - 1 Ukrainian State research institute of Carbochemistry (UKHIN) Capacity - 24 000 000t/year Machine-building Plants - 2 UKRKOKS Association СЛАЙД 2

  4. Coke production Capacity 24 СЛАЙД 3

  5. Coke production in 2005-2006 2006 СЛАЙД 3’

  6. Trend of coke import in Ukraine 2005 2006 Russia – near 97% Poland – 80% Romania – 2% Japan – 0,2% China – 0,05% Russia – near 20% Japan – 1%

  7. Import-export of Coke in Ukraine - 2005 - 2006 СЛАЙД 4

  8. Properties of Coal Blends Table 1 СЛАЙД 5

  9. Coke Properties СЛАЙД 6

  10. Different Types of Coke Structure (Polarized Light, 400Х) а)– from coal of grade Г; б) – ГЖ; в) и г) – Ж; д) – К; е – ОС. а) b) c) f) d) e) СЛАЙД 7

  11. Dependence of the Reactivity on Content of Anisotropic Structures Reactivity, mg/g·min СЛАЙД 8

  12. The Reactivityand the Strength of Sertain Carbonic Materials after Reaction СЛАЙД 9

  13. Insertions into Coke (Polarized Light, 400Х) СЛАЙД 10

  14. Basic Trends of Increasing of Coke Quality CRI CSR СЛАЙД 11

  15. Development of Rational RawBase for Coking • forming the required properties of coal blends, foremost as per ash, sulphur content, coal rank. It means the increase in coal washing depth and the ash reduction of coal concentrates; the increase of coal homogeneity as per spectrographic composition • the reduction of sulphur content and the increase in blend rank by increasing of mining volumes of Ukrainian low-sulphur coals and importing high-rank coals • blend additives of organic mesogenetic substances which increase the order of coke structure, and also prepared anisotropic materials like, for instance, petroleum coke. CSR CRI СЛАЙД 11’

  16. Rational coking technology CSR • control of physical and chemical processes for transformation of isotropic coke texture to anisotropic one (increasing the coke carbon order) - decreasing coking rate to not to exceed 24 mm/h, rational level of final temperatures (1050-1100 oC), additional soak-time for coke at a chamber (0,5-1,5 hours). CRI СЛАЙД 11’’

  17. Final coke treatment CSR • dry quenching and soak-time of coke at a premix chamber, rational level of the mechanical loads on the coke during its sorting, additional machining of coke to realize available centers of mechanical tensions and crack forming, coverage of coke surface with organic materials (for closing of pores and cracks) and inorganic substances (inhibitors of gas process). СЛАЙД 11’’’ CRI

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