Browsing Natural and Agricultural Sciences by Subject "Potassium"
Now showing items 1-3 of 3
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The behaviour of potassium and sodium species during the thermal treatment of a demineralized Highveld coal
(North-West University, 2011)A series of experiments was conducted to investigate the potential influence of pre- and post adding of catalysts to a demineralized coal char. The catalysts were chosen according to yield better catalytic activity and be ... -
Extraction of K, AI and Ti containing compounds from ash produced by low temperature combustion
(North-West University (South Africa), 2019)South African coal samples can contain up to 30% aluminium oxide which is constituted in the mullite and insoluble aluminium silicate mineral phases. This suggests that coal ash, produced in power plants or thermal processing ... -
The influence of potassium carbonate and potassium chloride during heat treatment of an inertinite–rich bituminous char
(North-West University, 2012)Thermogravimetry, coupled with a mass spectrometer (TG-MS) was used to investigate the catalytic effect potassium carbonate (K2CO3) and potassium chloride (KCl), on the char conversion and the product gas composition of ...