By Avilino Sequeira

ISBN-10: 0824792564

ISBN-13: 9780824792565

Presents state of the art details on all strategies at the moment used to fabricate lubricant base oils and waxes-offering useful, timesaving strategies for particular on-the-job difficulties. Furnishes useful lists of conversion components, building fee facts, and technique licensors, in addition to a thesaurus of crucial petroleum processing phrases.

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Offers state of the art info on all techniques at present used to fabricate lubricant base oils and waxes-offering functional, timesaving strategies for particular on-the-job difficulties. Furnishes beneficial lists of conversion elements, development fee info, and technique licensors, in addition to a thesaurus of crucial petroleum processing phrases.

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1 Capital Cost Breakdown The capital cost breakdown generated for a recent feasibility study of a potential BIOX™ project is used as an example. 5. The mechanical equipment supply cost is based on budget quotes obtained for all major equipment units and can be classified as a preliminary estimation with a target accuracy of −15 to +25%. The total capital cost estimate is an order of magnitude estimation and is based on cost data from previous cost studies. 7, respectively. The biooxidation section contributes to more than 50% of the total BIOX™ plant equipment cost, with the BIOX™ reactors and the BIOX™ agitator costs contributing the bulk of this cost.

Arsenopyrite) did not influence the optimal nutrient requirements of the bacterial population. After the screening, the most critical operating parameters in batch cultures were further investigated in more detail in continuous operations with agitated tank reactors at laboratory (80 L), pilot (4 m3) and semi-industrial (65 m3) scales (Morin et al. 1995; d’Hugues et al. 1997). It was found that the mineral oxidation rate was at least 30% faster in continuous mode than in batch conditions, showing the importance of running continuous bioleaching tests when the objective is to evaluate performances with a view to application at an industrial scale.

Sufficient power must be provided to the impeller to prevent flooding. 2. a, determined by the oxygen demand of the process. 3. The impeller pumping rate must be sufficient to achieve uniform solids suspension and to maintain uniform temperature, pH and concentration profiles through the reactor. Flooding of an impeller occurs when the air passes through the impeller and is not dispersed by the fluid flow. This is accompanied by a decrease in the agitator power draw, the oxygen transfer rate achieved and a reduction in the solids suspension capability of the impeller.

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Lubricant Base Oil and Wax Processing by Avilino Sequeira

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