Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 16 of 16 for “"Process configuration"”.
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A new strategy for selecting and evaluating physical solvents for gas absorption
… design variables of a physical gas absorption process. The role of every property in determining the capital and the running cost of a process has been specified. Direct mathematical relationships have been formulated between every item of capital or running cost and the properties which are …
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Biocatalytic conversion of cellulose towards itaconic acid
… and low exergy loss. However, such biocatalytic processes are still seldom applied at the industrial scale since the single conversion steps (pretreatment, hydrolysis, and fermentation) exhibit low efficiencies or high costs. To allow a knowledge-based optimization, each step was analyzed in …
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Techno-economic evaluation of demilitarized TiCl₄ recycling processes
… 42 ton, distributed into smaller batches and processed over a period of six years. This analysis was performed by means of a detailed techno-economic evaluation. The three main potential recycling considerations were titanium (Ti) sponge production, titanium dioxide (TiO₂) pigment production …
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Configuration management for a distributed and collaborative software development environment
… also reflects this globalization, as do all the processes involved in software development. It is important to understand these changes and how they affect not only the entire development process as a whole but also each individual part of the process. Configuration management is an integral part …
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Fundamental studies on the blow forming of polymeric micro-tubes and components
… and economically competitive micro manufacturing processes. Blow forming processes are based on internal pressurization of an extrusion shaped polymer micro tube could provide an economic and reliable micro manufacturing process to the mass production of precise complex-shaped hollow micro parts. …
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Modeling and Control of the Open Plate Reactor
… points and there are internal sensors for process monitoring and control. A flexible process configuration simplifies the adaptation of the reactor to new reactions in terms of residence time, cooling system, actuator and sensor locations. To take full advantage of the flexible …
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Reactor design for the hydroxylation of n-octane using a cyp153a6-based biocatalytic system expressed in Escherichia coli
… the global expansion of gas-to-liquid refining processes. Furthermore, these linear alkanes feature one of the strongest chemical bonds in nature and typically are of a low value due to their inertness. In an effort to valorise this resource, catalytic routes are being sought in order to improve …
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Control of crystalline particle properties by spray drying
… and higher quality. Spray drying is a continuous processing technique typically adopted for amorphous solid production. However, the unique conditions of the technique can also can be adapted and applied to crystallisation enabling particle property engineering. The semi-continuous lab-scale Büchi …
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Investigating process stresses on Saccharomyces cerevisiae using isothermal microcalorimetry
Maximising performance of microbial processes, including yeast-based processes, in an industrial setting requires understanding of the impact of process stresses. These may be the result of process configuration, dilution, temperature changes, hydrodynamic conditions or process perturbations. …
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A study of configurational alternatives of a gas-to-liquids process based on Fischer-Tropsch technology
… to as XTL). The economic viability of XTL processes is generally subject to the present price of crude oil and past studies show that traditional refining is generally more economically viable. However, XTL processes have been shown to be more economical and in some cases more …
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Treating wastewater in a conventional activated sludge (CAS) system or a Membrane Bioreactor (MBR). A comparison of capital and operating costs
… wastewater treatment is an important step in the process as it has a major impact on effluent quality. Traditionally this has been achieved using Secondary settling tanks (SSTs) for liquid/solid separation in combination with a biological reactor (for biological degradation of organic matter). …
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Application of low PO2 iron-based oxides for decarbonising steel industry via chemical looping
… of CO/H<sub>2</sub> in the carbonator. The process models reveal the reduced-carbonated C<sub>2</sub>F) chemically stores the heat of combustion effectively. Therefore, it can be utilised for sorbent regeneration in the calciner, essentially pumping the heat from the carbonator to the …
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Purification of C-phycocyanin from Spirulina - adsorption pretreatment options
… protein. Work was done at the Centre for Bioprocess Engineering Research (CeBER) to develop a process using aqueous two-phase separation (ATPS) and ammonium sulfate precipitation to generate C-PC for cosmetic use, which has a minimum purity requirement of 1.5. A patent was obtained before …
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Advanced Process Design and Modeling Methods for Sustainable and Energy Efficient Processes
… of chemistry, thermodynamics, and transport to process and refine resources on a global scale. The chemical processing industry has an enormous impact on global energy consumption and contributes to climate change. Chemical engineers play a major role in the transition of the chemical industry …
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Microbial monitoring and degradation of lindane in soil
… A possible approach is bioremediation, the process by which living organisms degrade the contaminant. A technology often used in bioremediation is bioaugmentation, in which specialized microorganisms are introduced into the environment in order to metabolize the targeted compound. Despite …