Sasol Technology Proprietary Limited

Northwest University

Frans Boudewijn Waanders

Sanette Marx

John Reginald Bunt

Johannes Christoffel Van Dyk

The production carbonaceous feedstock material from waste containing carbon sources and the use thereof in gasification processes for hazardous emissions of greenhouse gases and sulphur are significantly minimized and enhanced reaction rates are described. A process for producing a carbonaceous feedstock material from waste containing carbon sources, including the steps consisting of: (i) introducing a source of biochar to a source of discard coal fines to form a bio-coal mixture; (ii) introducing a catalyst additive selected from the group consisting of a source of an alkali metal or a source of an alkaline earth metal to the bio-coal mixture; (iii) optionally, contacting the bio-coal mixture with a binder; and (iv) compacting the resulting mixture of step (ii) or (iii) to form one or more carbonaceous feedstock briquettes, the size of said briquettes having a dimension of at least 5 mm.

Production of a carbonaceous feedstock material from a waste carbon source

A coal processing operation () includes in a dense media separation stage (), subjecting a coal feedstock () which includes minerals to dense media separation producing a first coal stream () and a second coal stream (). Coal in the first coal stream () is lower in ash and has a lower ash fusion temperature than coal in the second coal stream (). Coal from the first coal stream () is processed in a high temperature coal processing operation (), and coal from the second coal stream () is processed in a medium temperature coal processing operation ().

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Potchefstroom, South Africa

Frans Boudewijn Waanders