Type, Distribution and Use of Coal in South Africa

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TYPE, DISTRIBUTION AND USE OF COAL IN SOUTH AFRICA 35th IGC GIFT Workshop, 28 August 2016 WHAT IS COAL • Sedimentary rock • Heterogeneous and carbonaceous fossil fuel/material organic and inorganic 70% carbon content, 30% oxygen and hydrogen FORMATION OF SOUTHERN HEMISPHERE COAL Permian Period Carboniferous Period COAL FORMATION COAL FORMATION ORIGIN OF MINERAL MATTER IN COAL BASIC COAL QUALITY ASSESSMENT: TYPE, GRADE AND RANK BENEFICIATION PROPERTIES • Particle size distribution CHEMICAL PROPERTIES • Grindability • Ash • Calorific Value • Float sink • Volatile Matter • Fixed & Total • Hard Grove Index • Moisture Carbon • Sulphur SWELLING PROPERTIES • Swelling Index • Ash fusion Temperature COAL COAL PETROGRAPHY • Vitrinite reflectance PHYSICAL PROPERTIES • Maceral analysis • Surface Area • Porosity MINERAL MATTER • X-Ray Diffractometer • X-Ray Fluorescence Spectroscopy COAL TYPE Typical coal found in South African Coalfield VARIATION OF COAL PARAMETERS WITH RANK COAL TYPE BY USE COAL DISTRIBUTION IN SOUTH AFRICA VARIATIONS OF MAJOR COAL SEAMS IN SOUTH AFRICA VALUE CHAIN OF COAL IN SOUTH AFRICA Regional Context Mining Global Context Electricity Coal Value Coal Preparation Coal to Liquid Exploration Metallurgical Transport use Sampling & Characterization Industrial use Coal Exports Research & Development Residential use Resources & Alternatives to Reserves coal SOUTH AFRICAN COAL PRODUCERS WHAT HAPPENS AFTER MINING Local use Export Stocks 25.0Mt 78.7Mt 11.9Mt Washing 209.4Mt 69.8Mt 11.9Mt 35.0Mt Discards Synfuels Electricity 333.6Mt 74.8Mt 42.9Mt 93.2Mt 5.0 Mt 31.0Mt 93.2Mt Screening 124.2 QUALITY OF COAL CONSUMPTION BY INDUSTRIES COAL EXPORTS MARKET Taken from Chamber of Mines, 2014 estimates COAL USE IN SOUTH AFRICA Taken from Mintek reports, 2007 FIGURES COAL USAGE: 2014 FIGURES 2% 1% 1%1% 0% 0% 3% 5% Electricity Synfuels Merchants and domestic Industries 22% Steel Chemical Metallurgical Cement 65% Brick & Tiles Agriculture FIGURES TAKEN FROM XMP CONSULTING EXPORT TERMINALS COAL TO ELECTRICITY COAL TO LIQUID PROCESS METALLURGICAL USE COAL POWER STATIONS IN SOUTH AFRICA COAL STRUCTRAL CONVERSION PROCESS COAL CHAR TO GRAPHITE THANK YOU.

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