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 9 of 9 for “"Air separation unit"”.
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Conceptual development and analysis of multiple integrated hydrogen production plants with Cu-Cl cycle
… hydrogen fueled combined cycle, cryogenic air separation unit, compression system and five-step Cu-Cl cycle. The second system consists of SCWR, hydrogen fueled combined cycle, compression system and five-step Cu-Cl cycle. The third system consists of solar heliostat steam generator, …
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Techno-economic analysis of pressurized oxy-fuel combustion power cycle for CO₂ capture
… energy in the compression step within the air separation unit, a flue gas recirculation system and carbon dioxide purification and compression units. Moreover, a large amount of flue gas latent enthalpy, which has high water concentration, is wasted. Both lower the overall cycle efficiency. …
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Equation-oriented modeling, simulation, and optimization of integrated and intensified process and energy systems
… material and energy balance equations of process unit operations as differential-algebraic equation (DAE) systems that are statically equivalent to the original model. I show that these pseudo-transient models improve the convergence properties of equation-oriented process flowsheet simulations by …
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Role of Hydrogen in Industrial Decarbonization: A Case for Ammonia Industry in the United States
… as variables the relative sizing of various units (e.g. electrolyzer, Air Separation Unit, renewables capacity), including deployment of alternative forms of on-site storage (battery energy storage, gaseous 𝐻2 and liquid 𝑁2). The overall mixed-integer linear programming (MILP) model is able …
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Rotary (redox) reactor-based oxy combustion chemical looping power cycles for CO₂ capture : analysis and optimization
… a redox process to eliminate the need for an air separation unit and enable better energy integration. Conventional CLC employs two separate reactors, with metal oxide particles circulating pneumatically in-between, leading to significant irreversibility associated with reactor temperature …
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A study of configurational alternatives of a gas-to-liquids process based on Fischer-Tropsch technology
… used, operating conditions, and layout of unit operations. A basic GTL process configuration consists of an Air Separation Unit (ASU), Auto-Thermal Reforming (ATR), syngas cleaning, full conversion Low Temperature Fischer-Tropsch (LTFT) and wax hydrocracking (WHC). These operations are …
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Oxygen Transport Membrane Reactors for Oxy-Fuel Combustion and Carbon Capture Purposes
<p>This thesis investigates oxygen transport membrane reactors (OTMs) for the application of oxy-fuel combustion. This is done by evaluating the material properties and oxygen permeability of different OTM compositions subjected to a variety of operating conditions. The scope of this work consists …
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Economic evaluation of burning bituminous and western PRB coals for power production based on select pollution control scenarios
… Protection Agency (USEPA) finalized its Clean Air Interstate Rule (CAIR) and Clean Air Visibility Rule emission regulations in 2005, to limit emissions of sulfur dioxide, nitrogen oxides and particulate matter to the atmosphere. USEPA replaced CAIR with the Cross State Air Pollution Rule in …
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Waste to fuel: designing a cobalt based catalyst and process for once-through Fischer-Tropsch synthesis operated at high conversion
… self-sufficiency. A plant design using an air-fed biogas reformer (without an air separation unit) and a single pass Fischer-Tropsch configuration is proposed. A fundamental requirement of this particular design is that it needs to operate at a higher FischerTropsch conversion than …