Page 8 - New Trends In Coal Conversion

Contents vii

6 Technologies for control of sulfur and nitrogen compounds and
particulates in coal combustion and gasification 141
Fernando Vega, Bernabé Alonso-Fari~ nas, Francisco M. Baena-Moreno,
José A. Rodríguez and Benito Navarrete
6.1 Introduction 142
6.2 Gas cleaning technology in PCC 142
6.3 Gas cleaning technologies in IGCC coal gasification 162
6.4 Concluding remarks 170
References 170

7 Current status of coal gasification 175
José María S anchez-Herv as, Gregorio Molina Moya and
Isabel Ortiz Gonz alez
7.1 Introduction 175
7.2 Current status of coal gasification 176
7.3 Concluding remarks 196
References 197

8 Industrial perspective of the cokemaking technologies 203
Hari Prakash Tiwari and Vinod Kumar Saxena
8.1 Introduction 204
8.2 Importance of the coke industry 204
8.3 Coals for cokemaking 205
8.4 Carbonization of coal/coal blend 206
8.5 Cokemaking technologies 208
8.6 Technologies for improving coke quality 210
8.7 Stamp charge cokemaking technology 212
8.8 Problem in cokemaking operation 214
8.9 Parameters influencing the heat transfer of the charge,
productivity, and coke quality 216
8.10 Cokemaking by-products 227
8.11 Factors affecting by-products yield 239
8.12 Concluding remarks 240
References 240

9 Coke tumbler strength prediction from measurements
of the plastic layer 247
David E. Pearson, Richard A. Pearson and Hee Kyoung (Jackie) Park
9.1 Introduction 247
9.2 The role of petrography in coke strength prediction 248
9.3 Introduction to Sapozhnikov plastometry 251
9.4 The Sapozhnikov Quotient 253
9.5 Prediction of tumbler strength 254
9.6 Forecasting qualities of coal blends 256
9.7 The encapsulite enigmadevidence of interaction 258