Browsing by Author "Kerr, AC"

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    Purification of carbon dioxide for reactor purposes, Part III - drying
    (Australian Atomic Energy Commission, 1962-04) Draycott, A; Kerr, AC
    Comparison of the adsorption characteristics of the desiccants silica gel, alumina, and molecular sieves has shown that molecular sieves have by far the greatest capacity of the desiccants at the low partial pressures considered. Equilibrium data in the form of isotherms were established over the range of variables expected in the coolant circuit of a proposed Australian H.T.G.C. reactor. The mass transfer from the gas phase to molecular sieves is such that no correlation could be attempted for the adsorption zone height; the height proved to be too small.
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    Purification of carbon dioxide for reactor purposes. Part 1 - literature survey and recommended programme
    (Australian Atomic Energy Commission, 1960-01) Draycott, A; Kerr, AC
    The impurities likely to be present in carbon dioxide are listed; water is considered to be the most important in view of its adverse effect on the compatibility of many reactor materials with the gas. The literature on various desiccants is reviewed and a suggested experimental programme on drying of the carbon dioxide is outlined. Other major impurities are oxygen and nitrogen. Some chemical means for continually removing the oxygen appear possible. It is likely that the nitrogen content can only be lowered on charging the reactor; no continual method seems feasible at this stage. Minor impurities such as the oxides of nitrogen and sulphur are mentioned and the continual removal of dust in the coolant circuit is considered.
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    Purification of carbon dioxide for reactor purposes. Part II - pressure losses through packed beds of selected desiccants
    (Australian Atomic Energy Commission, 1961-05) Draycott, A; Kerr, AC
    Pressure losses have been measured for the flow of carbon dioxide, air, argon, helium, hydrogen and methane through beds of molecular sieves, and for carbon dioxide and air through beds of activated alumina. It is shown that at the levels of moisture impurity expected in the Australian H.T.G.C. reactor no increased pressure loss caused by adsorption should be encountered. The effect of temperature was studied but in all cases found to be slight. Generally, good correlations were obtained although the low molecular weight gases, particularly hydrogen, showed considerable deviation.