Browsing Natural and Agricultural Sciences by Supervisor "Morgan, D.L."

Browsing Natural and Agricultural Sciences by Supervisor "Morgan, D.L."

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  • The chemistry of the alkali-induces solubilisation of coal 
    Shoko, Lay (University of Pretoria, 2007-02-22)
    This thesis outlines a study carried out to understand the effects of coal dissolution variables. Several parameters that are thought to have a direct influence on the degree of coal dissolution in organic solvents were ...
  • Coal purification 
    Mthembi, Pabalala Meshack (University of Pretoria, 2005-09-09)
    Please read the abstract in the section 00front of this document
  • The effect of diabietic acid on the coking of oxidised solvent-extracted coal 
    Ludere, Margaret Tshimangadzo (University of Pretoria, 2008-04-24)
    Refcoal is a refined carbon source obtained by extraction of coal with dimethylformamide (DMF). During the coking process, Refcoal goes through a mesophase (fluid) stage to form an anisotropic coke. In contrast, oxidised ...
  • Preparation and characterisation of graphitisable carbon from coal solution 
    Kgobane, B.T. (Bethuel Lesole) (University of Pretoria, 2007-06-18)
    The energy demands by the industrial world are continuing to rise, while the rate of new oil discoveries is falling. Within the next 30 years, available petroleum supplies are likely to fail to meet the demand, and oil ...
  • The preparation of pitches from anthracene oil 
    Mashau, Sharon Ntevheleni (University of Pretoria, 2008-07-16)
    Eskom has embarked on the development of the Pebble Bed Modular Reactor to generate electricity at low cost compared to that of coal with no greenhouse gas emissions. The proposed PBMR requires about 600 tons of nuclear-grade ...
  • Purifying coal for the production of nuclear graphite 
    Phupheli, Milingoni Robert (University of Pretoria, 2008-04-24)
    Carbon materials play a fundamental role in the development of fusion reactors, for both the generation of electric power and the production of nuclear materials. It is possible to synthesise graphite and carbon materials ...