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Browsing by Author "Gray, D"

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Catalytic coal hydrogenation zinc slimes

Author: Davidtz, JC ; Gray, D Date: 1977 The selection and utilization of South African raw materials as catalysts in coal conversion depend on the availability of catalysts. Equally important is the -selectivity and activity of these materials for coal conversion. Read more
The COED process - A review

Author: Gray, D Date: 1978 The COED-process, a fluidized-bed pyrolysis coal conversion technique, is described in considerable detail. Using Illinois 6 coal as feedstock for the process, the coal is taken through the pyrolysis stages to produce a raw pyrolysis oil. ... Read more
Hydrotreating of a coal-derived liquid. Part 1

Author: Barrass, G ; Davidtz, JC ; Gray, D ; Jezko, J ; Kershaw, JR ; Meinjes, AA Date: 1977 The +300 degrees Celsius boiling fraction of a coal-derived liquid produced by direct dry non-catalytic hydrogenation of Sigma coal was hydrotreated in the presence of a tailored Ni/W oxide on a synthetic layered silicate catalyst. Read more

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Browsing by Author "Gray, D"

Browsing by Author "Gray, D"

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