Page 9 - New Trends In Coal Conversion

viii Contents

9.8 Concluding remarks 259
9.9 Current and future trends 260
Acknowledgments 260
References 261

10 Nonrecovery and Heat recovery cokemaking technology 263
Hardarshan S. Valia
10.1 Introduction 263
10.2 Heat recovery coke plant and operation 265
10.3 Coke quality from nonrecovery heat recovery coke plants 269
10.4 Performance of SunCoke’s IHCC coke at the blast furnace 278
10.5 Heating and draft control strategy for a nonrecovery
heat recovery battery 280
10.6 Environmental advantages 284
10.7 Cost benefits 285
10.8 Future research 287
10.9 Concluding remarks 287
Acknowledgments 289
References 289

11 Compacting of coals in cokemaking 293
Halit Ziya Kuyumcu
11.1 Introduction 293
11.2 Meaning of coal compacting in cokemaking 294
11.3 Methods of coal compacting in cokemaking 297
11.4 Analysis of the coal compacting process 300
11.5 Analysis of the coal cake stability 318
11.6 Economic appraisal of stamp charging technology 325
11.7 Compact grinding 327
11.8 Current and future trends 332
References 332

12 The development of cokemaking technology based on the
utilization of semisoft coking coals 335
Seiji Nomura
12.1 Introduction 336
12.2 The current environment surrounding hard coking coals 336
12.3 Technological principles underlying semisoft coking coal
utilization from the viewpoint of the carbonization mechanism 337
12.4 Some examples of developed and commercialized technology
utilizing semisoft coking coals 344
12.5 SCOPE21 process 357
12.6 Concluding remarks 361
References 362