COAL BENEFICIATION IN INDIA Status and Way Forward Swagat Bam Lydia Powell Akhilesh Sati Observer Research Foundation New Delhi Coal Beneficiation in India Status and Way Forward Swagat Bam Lydia Powell Akhilesh Sati Observer Research Foundation 20, Rouse Avenue Institutional Area, New Delhi - 110 002, INDIA Ph. : +91-11-43520020, 30220020 Fax : +91-11-43520003, 23210773 E-mail:
[email protected] ©2017 Copyright: Observer Research Foundation ALL RIGHTS RESERVED. No part of this book shall be reproduced, stored in a retrieval system, or transmitted by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of the copyright holder (s) and/or the publisher. Cover Photo from The Hindu Business Line website. Typeset by Mohit Enterprises, Delhi Printed and bound in India ii Coal Beneficiation in India: Status and Way Forward Contents About the Authors v Acknowledgements vii 1 Executive Summary 1 2 Introduction 3 2.1. Rationale for Coal Beneficiation 3 3 Benefits of Coal Washing 5 3.1. Indian Coal Quality 5 3.2. Environmental Benefits of Coal Beneficiation 9 3.2.1. Reduction in Carbon Dioxide Emissions 9 3.2.2. Reduction in Other Pollutants 10 3.2.3. Reduction in Ash Handling 12 3.3. Economic Benefits of Coal Beneficiation 14 3.3.1. Plant Operations 14 3.3.2. Transport of High Ash Coal 15 4 Coal Beneficiation Technologies 21 4.1. Dominant Washing Technologies 22 4.1.1. Heavy Media Bath 22 4.1.2. Heavy Media Cyclone (HMC) 22 4.1.3. Jigs 23 4.1.4. Barrel Washing 23 4.2.