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 20 of 135 for “"reactor design"”.
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Process and reactor design study of lignin propoxylation
… and properties of HPL. A study of the process design is necessary to examine the economics of lignin propoxylation. This work includes the chemical and kinetic analysis of the lignin propoxylation reaction as well as the modelling of a semibatch polymerization process; the design of a lignin …
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Reactor Design for Partial Upgrading of Bitumen via Aquaprocessing
… This thesis is focused on evaluating the reactor design parameters required for scale-up of this technology. The kinetic parameters for hydrocracking reaction were calculated using first-order rate law expression for the packed bed reactor. Diffusivity of steam in bitumen, dimensionless …
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Multispecies reactor design for fluorination reduction of lunar regolith
Citronellal was converted over sulphonated polystyrene resin catalysts of different acid loading. The catalysts had been prepared sulphonating a commercial polystyrene resin with sulfuric acid. Catalyst activities were screened in the liquid phase and in the gas phase in a temperature range of 50 …
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Packed fiber bed reactor design for animal cell culture
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Chemical Engineering, 1987.
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Kinetics and reactor design in the pyrolysis of tar sands
… data that was approximate, but adequate for design purposes. The results indicated a reaction rate that was second order in bitumen content, with an activation energy of about 17 to 20 kcal/gmol.</p> <p>Data for the boiling point distribution of the products was consistent with a change of …
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Consideration of fuel behaviour in AGR-like FHR reactor design
The Fluoride Salt-cooled High-temperature Reactor (FHR) is a subclass of Molten Salt Reactor (MSR) that uses solid fuel separated from the molten coolant salt. Previous work showed that British Advance Gas-cooled Reactor (AGR) technology can be used to potentially reduce the time required to …
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An innovative reactor design for the treatment of biologically inhibitory wastewater
… expanded-bed granular activated carbon (GAC) reactor combines biological and physical removal mechanisms to continuously treat biologically inhibitory wastewaters. An innovative reactor design that decouples biological and physical removal mechanisms by combining a GAC adsorber with a …
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Exclusion area radiation release during the MIT reactor design basis accident
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Nuclear Engineering, 1983.
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An inverted pressurized water reactor design with twisted-tape swirl promoters
An Inverted Fuel Pressurized Water Reactor (IPWR) concept was previously investigated and developed by Paolo Ferroni at MIT with the effort to improve the power density and capacity of current PWRs by modifying the core geometry. A detailed study was performed to optimize the IPWR design …
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Effects of variation of uranium enrichment on nuclear submarine reactor design
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Nuclear Engineering, 1990.
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Epistemologies of safety : a comparative study of contemporary French and American reactor design practices
What makes for a safe nuclear power reactor? One of school of thought (that has significant traction within the academic nuclear engineering community) calls for using risk as a surrogate for safety. Safety then becomes a measurable quantity and can be specified in probabilistic terms and treated …
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Anaerobic digestion of Fischer-Tropsch reaction water : submerged membrane anaerobic reactor design, performance evaluation & modeling
Includes abstract. Includes bibliographical references (p. 209-217).
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Novel electrode fabrication and reactor design for electrocatalytic nitrate and nitrite reduction in drinking water treatment
… performance in realistic continuous flow reactors. Electrocatalytic NO₃⁻ reduction has emerged as a promising option to overcome these shortcomings. A number of research groups have advanced mechanistic understanding of the reactions that drive this technology, but advancements in reactor …
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Investigating the role of reactor design to maximise the environmental benefit of algal oil for biodiesel
While initially thought to be promising, crop based biofuels are an inadequate alternative to fossilenergy due to the unrealistic space requirement, competition with food crops for land use and greenhouse gas release on clearing for crop land several times greater than biofuels provide …
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Reactor design for the hydroxylation of n-octane using a cyp153a6-based biocatalytic system expressed in Escherichia coli
… system from 1 ml (working volume) vials to bioreactors with a working volume in excess of 1 l because reactors afford improved process stability, control and easier analyses than small-scale experimental setups. The scope of this study focussed on aspects of process configuration and the …
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Hydrolysis and oxidation of model organic compounds in sub- and supecritical water : reactor design, kinetics, measurements, and modeling
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Chemical Engineering, 1998.
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Investigation of cryogenic cooling for a high-field toroidal field magnet used in the SPARC fusion reactor design
… highly compact, high-field SPARC Version 0 (V0) reactor design. The V0 design is set to operate at magnetic fields as high as 20 T, and operating temperatures ranging from 10-30 K. Due to the increase in range of operating conditions made available through the HTS-based magnets, a new set of …
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System and Reactor Design, and Materials Testing, for Efficient Thermochemical Solar Fuel Production in Temperature/Pressure Swing Redox Cycles
… At the core of our innovation is the novel Reactor Train System (RTS). This system consists of multiple sealed and insulated STCH reactors that move between reduction and oxidation zones. The RTS is modular, scalable and compatible with any high-temperature heat source and thermal energy …
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An Integrated Process for Catalytical Conversion of Simple Sugars into Platform Chemicals, HMF and FDCA: Catalysis, Continuous Flow Reactor Design, Valorization of Waste By-Product
… and stability were rigorously evaluated in batch reactors. The performance and long-term stability of the catalysts under continuous operation were also assessed to determine their viability for practical applications. Key experimental parameters, including reaction temperature, feed flow rate, …
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