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Dissertations / Theses on the topic 'Continuous flow reactor synthesis'

Author: Grafiati

Published: 5 June 2025

Last updated: 1 August 2025

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1

Baker, Alastair. "Flow reactors for the continuous synthesis of garlic metabolites." Thesis, Cardiff University, 2015. http://orca.cf.ac.uk/86704/.

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Garlic secondary metabolites are organosulfur compounds that possess prophylactic properties. The chemical composition of garlic oil extracts consists of a combination of these compounds. The instability of a major component, allicin 5, limits the commercial viability of garlic oil extracts. The synthesis of garlics organosulfur compounds has been performed in batch reactors. In this thesis, flow reactors were utilised to improve the throughput, reduce the operating conditions. The thermolysis of allicin 5 is the solitary approach to produce the garlic metabolite, ajoene 14. Ajoene 14 has grea

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2

Hook, Benjamin D. A. "The development of a continuous-flow photochemical reactor and its application to the synthesis of stemoamide." Thesis, University of Bristol, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.441339.

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3

Wang, Yantao. "Synthesis and conversion of furfural-batch versus continuous flow." Thesis, Compiègne, 2019. http://www.theses.fr/2019COMP2474/document.

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Le furfural, identifié comme l'un des 30 principaux produits chimiques biologiques, est une molécule importante en terme de chimie verte et développement durable. L'objectif de ce travail de doctorat est de réaliser la synthèse et la conversion du furfural en flux continu et par lots. Ici, nous avons développé des méthodes plus éco-efficiente pour la synthèse du furfural, et valorisé le furfural en produits à haute valeur ajoutée, tels que le 2-furonitrile, l'alcool furfurylique, etc... Plusieurs questions clés ont été identifiées afin de concevoir des processus plus écologiques que les proces

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4

Thompson, Lisa Alice. "Chemo- and bio-catalysis for the synthesis of chiral amines in continuous flow reactors." Thesis, University of Leeds, 2017. http://etheses.whiterose.ac.uk/18514/.

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The prevalence of chiral amines in pharmaceutical compounds means that efficient synthetic methods are highly desirable. Asymmetric catalysis offers the opportunity for enantioselective synthesis of chiral amines under milder reaction conditions. Chemical and biological catalysts both offer specific advantages and disadvantages that are different to the other catalyst type. Therefore, the combination of catalysts would allow for the advantages of each to be exploited, whilst overcoming the associated disadvantages. This research investigates the combination of chemical and biological catalysts

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5

Gruar, R. I. J. "Synthesis and characterisation of nanomaterials produced using laboratory and pilot scale continuous hydrothermal flow reactors." Thesis, University College London (University of London), 2013. http://discovery.ucl.ac.uk/1386635/.

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Due to their small particle size, nanoparticles ( < 100 nm in diameter) have an increased surface area to volume ratio compared to larger particles, meaning that surface attributes become increasingly important over bulk properties. Chemically, this means more atoms in the material have unsatisfied coordination environments compared to atoms in the bulk of the particle. In many cases, this leads to materials with significantly different bulk properties compared to much larger particles; some of these unique properties are desirable in high technology applications such as sun screens, catalysts

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6

Martin, Alex D. "A Convergent Approach to the Continuous Synthesis of Telmisartan via a Suzuki Reaction between Two Functionalized Benzimidazoles." VCU Scholars Compass, 2015. http://scholarscompass.vcu.edu/etd/3750.

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A direct and highly efficient synthesis has been developed for telmisartan, the active ingredient in the widely prescribed antihypertensive drug Micardis®. This approach brings together two functionalized benzimidazoles using a high-yielding Suzuki reaction that can be catalyzed by a homogeneous palladium source or palladium on a solid support. The ability to perform the cross-coupling reaction was facilitated by the regio-controlled preparation of a 2-bromo-1-methylbenzimidazole precursor. The method developed is the first reported selective bromination at the 2-position of a benzimidazole an

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7

Chassillan, Louis. "New Chiral Bifunctional Organocatalysts : Synthesis and Application in Enantioselective Reactions Under Batch and Continuous-Flow Conditions." Thesis, université Paris-Saclay, 2022. http://www.theses.fr/2022UPASF027.

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Au cours des dernières années, l’organocatalyse asymétrique a connu un engouement sans précédent et de nombreux catalyseurs organiques ont été synthétisés dans le but d’effectuer des réactions plus rapides et plus sélectives. Cependant, étant donné la demande croissante de molécules chirales dans l’industrie, il demeure crucial de développer de nouveaux outils afin de rendre leur production plus efficace. Pour ce faire, l’utilisation de la catalyse bifonctionnelle apparait comme une évidence du fait de sa capacité à activer simultanément le nucléophile et l’électrophile et ainsi permettre un m

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8

Zhu, Cuiju. "Sustainable Synthesis by 3d Transition Metal Electro-Catalyzed C─H Activation." Doctoral thesis, Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2019. http://hdl.handle.net/21.11130/00-1735-0000-0005-12F3-4.

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9

Medina-Ramos, Wilmarie. "Water and carbon dioxide for sustainable synthesis and separation of pharmaceutical intermediates." Diss., Georgia Institute of Technology, 2013. http://hdl.handle.net/1853/52915.

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The research projects presented in this thesis are mainly focused toward green chemistry and engineering: developing innovative strategies to minimize waste, improve process efficiency and reduce energy consumption. Specifically, the work was centered on the design and applications of green solvents and processes for the sustainable production of pharmaceuticals. The first project was focused on the use of CO₂ to enhance Suzuki coupling reactions of substrates containing unprotected primary amines. This work established that exceptionally challenging substrates like halogenated amino pyridin

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10

Charney, Reagan R. "Coupling reactions and separations for improved synthetic processes." Diss., Atlanta, Ga. : Georgia Institute of Technology, 2008. http://hdl.handle.net/1853/26675.

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Thesis (Ph. D.)--Chemistry and Biochemistry, Georgia Institute of Technology, 2009.<br>Committee Chair: Dr. Charles Liotta; Committee Co-Chair: Dr. Charles Eckert; Committee Member: Dr. David Collard; Committee Member: Dr. Facundo Fernandez; Committee Member: Dr. Rigoberto Hernandez. Part of the SMARTech Electronic Thesis and Dissertation Collection.

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11

Lawrence, J. P. "Microfluidic tangential flow filter and continuous-flow reactor for bioprocess development." Thesis, University College London (University of London), 2015. http://discovery.ucl.ac.uk/1468842/.

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The development of new biocatalytic processes is hindered by the number of factors that must be investigated and optimised in order to create a robust and reproducible process, particularly where a novel enzyme is involved. It is therefore advantageous to perform process development experiments at micro scale, in order to reduce the material requirement for experimentation and increase experimental throughput by parallelisation. The initial focus of the thesis is on the design of a microfluidic tangential flow filter to test downstream processing conditions. The device was designed for reversi

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12

Zheng, Mingzhi. "The development of a continuous oscillatory flow meso reactor." Thesis, University of Cambridge, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.612058.

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13

Sharma, Y. "Continuous flow synthesis of organic compounds." Thesis(Ph.D.), CSIR-National Chemical Laboratory, Pune, 2017. http://dspace.ncl.res.in:8080/xmlui/handle/20.500.12252/4520.

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14

Kelly, Liam P. (Liam Porter). "Development of a continuous-flow synthesis of neostigmine methylsulfate and studies toward a continuous-flow synthesis of lisinopril." Thesis, Massachusetts Institute of Technology, 2019. https://hdl.handle.net/1721.1/122853.

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Thesis: Ph. D., Massachusetts Institute of Technology, Department of Chemistry, 2019<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references.<br>[color illustration] Herein, we describe the development of a continuous flow synthesis of neostigmine methyl sulfate, an acetylcholinesterase inhibitor on the WHO list of essential medicines, and the transfer of the synthesis into a next-generation reconfigurable frame developed by our collaborators. Starting from 3-dimethylaminophenol, the synthesis provides a throughput of approximately 46.8 g/day (or 93,600 doses/day) of cr

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15

Nagy, Kevin David. "Catalyst immobilization techniques for continuous flow synthesis." Thesis, Massachusetts Institute of Technology, 2011. http://hdl.handle.net/1721.1/70405.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Chemical Engineering, February 2012.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (p. 181-199).<br>Catalytic processes are ubiquitous in both research and industrial settings. As continuous flow processes continue to gain traction in research labs and fine and pharmaceutical chemical processes, new opportunities exist for implementing previously difficult catalytic transformations. The major goal of this thesis is to expand and evaluate techniques for immobilized catalyst systems relevant to con

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16

Kralj, Jason G. "Continuous flow separation techniques for microchemical synthesis." Thesis, Massachusetts Institute of Technology, 2005. http://hdl.handle.net/1721.1/34164.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Chemical Engineering, February 2006.<br>Includes bibliographical references (leaves 146-153).<br>Performing multistep microchemical synthesis requires many techniques from combining micromixers in series to the development of continuous microfluidic separation tools. Safety, high heat and mass transfer rates, and cost savings all continue to motivate microreactor development as a research tool, but many reactions generate a variety of (by)products including solid particles, immiscible fluids (gas and liquid), and miscible compone

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17

Newby, James. "Synthesis and reactions of isocyanides using a flow reactor." Thesis, University of Sheffield, 2013. http://etheses.whiterose.ac.uk/4127/.

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The work described in this thesis is divided into eight chapters: Chapters one and two contain an overview of the literature surrounding the project, focussing on flow chemistry and the chemistry of the isocyanide functional group. Chapter three explains project aims and objectives, and contains information relevant to the flow machine used in this project. Chapter four describes efforts towards developing a method for the synthesis of isocyanides from primary amines using the flow reactor. A procedure for synthesising N-formamides from primary amines using either a solution-phase or solid-pha

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18

Sizgek, Devlet G. "Experimental and simulation studies on a novel continuous flow resin polymerisation reactor." Thesis, University of Manchester, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.292672.

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19

Cancogni, D. "MICROFLUIDIC REACTOR TECHNOLOGY IN OLIGOSACCHARIDE SYNTHESIS." Doctoral thesis, Università degli Studi di Milano, 2014. http://hdl.handle.net/2434/229555.

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Although carbohydrates offer new therapeutic opportunities in biomedical field, the industrial implementation of carbohydrate-based drugs is yet greatly thwarted by the difficulties and challenges inherent in oligosaccharide synthesis, especially for large scale preparation. Any tool or new technology enabling a cost-effective improvement of the lead generation process is therefore highly desirable in order to reduce the manufacturing costs of carbohydrate drugs. During last years, continuous-flow synthesis in microreactors has gained a great deal of attention featuring practical advantages su

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20

SEDRAN, MARIE ALLYSON. "BIODEGRADATION OF BTEX AND EtOH IN AN AEROBIC CONTINUOUS FLOW POROUS POT REACTOR." University of Cincinnati / OhioLINK, 2002. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1024933311.

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21

Peterson, Olga Yuris. "Transferring pharmaceutical batch technology to continuous flow." Thesis, Georgia Institute of Technology, 2011. http://hdl.handle.net/1853/39510.

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The current trend in the pharmaceutical industry is towards continuous flow processes. Continuous flow reactor technology can produce a cheaper, better quality product at reduced energy and environmental cost through more efficient mass and heat transfer. It also enables a simplified and faster approach to bulk production by scaling out as opposed to scaling up. The research presented here focuses on the configuration and installation of a continuous flow system into the laboratory, and the transfer of a Meerwein-Ponndorf-Verley (MPV) reduction from batch to continuous mode. The Corning® glas

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22

Azeez, Qaisar A. "Synthesis of ultrafine aluminum nitride powders in a flow reactor." Ohio : Ohio University, 1988. http://www.ohiolink.edu/etd/view.cgi?ohiou1182779122.

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23

Smith, Laura Katherine. "Synthesis of value-added intermediates by continuous flow technology." Thesis, Durham University, 2018. http://etheses.dur.ac.uk/12526/.

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We present three projects linked by our use of continuous flow chemistry in the synthesis of organic intermediates. The first is the synthesis of 1,1'-spirobiindane-7,7'-diol (SPINOL) in 6 steps and 32% overall yield. The synthesis has been improved over the previous literature protocols as it is safer, scalable, and higher-yielding, with better robustness and reproducibility. We introduce two attempts towards the enantioselective synthesis of SPINOL. In the second project, we have developed a flow process based on the Vapourtec reactor to synthesise coumalic acid and methyl coumalate from mal

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24

Smith, Christopher David. "The application of continuous flow technology for organic synthesis." Thesis, University of Cambridge, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.611296.

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25

Anwar, A. "Continuous plastic flow synthesis and characterization of nanoscale bioceramics." Thesis, University College London (University of London), 2014. http://discovery.ucl.ac.uk/1458257/.

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The development and use of nanoscale biomaterials offer tremendous potential for future medical diagnosis and analysis. Various types of ceramic biomaterials (bioceramics) have been studied intensively for their potential in numerous biomedical applications. Among others, advances in the synthesis and characterisation of calcium phosphate (CaP) bioceramics have contributed much to this field. The growing demand for CaP bioceramics has stimulated research and production of materials suitable for biomedical applications such as implants. Among all the materials presented by the recent technology

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26

Wu, O. Y. "Continuous hydrothermal flow synthesis of lithium ion battery materials." Thesis, University College London (University of London), 2014. http://discovery.ucl.ac.uk/1455944/.

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There are a number of ways to improve the capacity of rechargeable batteries as suggested in the literature; carbon coating and reducing the particle size of the active material appear to be the most effective. In this work, the synthesis of pure phase LiFePO₄ nanoparticles was carried out directly in one step using the continuous hydrothermal flow synthesis (CHFS) system. Conventional synthesis methods require many steps and longer duration to obtain this cathode material. Microscopic data confirmed that the particles were successfully covered with an even carbon coating in situ where fructos

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27

Starkey, Christopher L. "Continuous-flow hydrothermal and solvothermal synthesis of inorganic nanomaterials." Thesis, University of Nottingham, 2016. http://eprints.nottingham.ac.uk/37016/.

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Nanomaterials and nanotechnology are presently receiving high levels of interest which is aiding significant advancements to industrial and technological applications. New strategies towards nanoparticle synthesis are needed to produce high quality nanomaterials at industrially viable levels. This thesis presents the continuous flow hydrothermal and solvothermal synthesis (CFHSS) of a range of inorganic nanomaterials produced using a continuous-flow reactor designed at the University of Nottingham. The materials presented herein are currently industrially applicable or projected future trend m

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28

Channa, Sikandar Ali. "Synthesis of Ti-based nanoparticles in continuous flow microreactors." Thesis, Nantes, 2017. http://www.theses.fr/2017NANT4067/document.

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Des nanoparticules à basede titane dispersées dans des sols ou des gels avec une distribution de taille étroite permettent l’exacerbation des propriétés photochimiques de films photosensibles. Utilisés comme absorbeurs solaires dans les photobatteries, ils permettraient la conversion et le stockage de l'énergie solaire sous forme électrochimique. Dans ce travail, ces matériaux nanostructurés ont été produits par l'hydrolyse de TiOCl2,1.4HCl,7H2O dans du N, N-diméthylformamide (DMF),à l'intérieur d'un microréacteur afin d’assurer un meilleur contrôle en température et de confiner les fluides. E

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29

Russell, Mary Grace. "Invention and implementation of technologies for continuous flow synthesis." Thesis, Massachusetts Institute of Technology, 2019. https://hdl.handle.net/1721.1/127715.

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Thesis: Ph. D., Massachusetts Institute of Technology, Department of Chemistry, May, 2019<br>Cataloged from the PDF of thesis.<br>Includes bibliographical references.<br>In this thesis, I have optimized a synthesis of rufinamide an important epilepsy medication. This convergent synthesis generates two reactive intermediates in situ (aryl azide and propiolamide) and then combines them in a regioselective click reaction utilizing copper tubing as the catalyst. Next, I have optimized a synthesis of nicardipine which is prescribed to treat high blood pressure. The nature of the project required th

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30

Boldrin, Paul. "Synthesis and characterisation of nanomaterial catalysts made using continuous hydrothermal flow synthesis." Thesis, Queen Mary, University of London, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.497781.

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31

Sagandira, Cloudius Ray. "Exploring acyl azides chemistry in continuous flow systems." Thesis, Nelson Mandela Metropolitan University, 2017. http://hdl.handle.net/10948/12065.

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Organic azides are important in the synthesis of many target molecules of great use in fine chemical and pharmaceutical production. The use of this class of compounds is however limited due to their hazardous nature and many safety concerns, as they are highly exothermic. Micro reactors can handle exotherms extremely well, due to the inherent high surface area to volume ratio, unlike the conventional batch process. This dissertation therefore aims to investigate the safe application of micro reactors in acyl azide chemistry.With this in mind, Chapter 1 provides a comprehensive background on or

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32

Al, Badran Firas. "Reactor design : compact and catalytic for speciality chemicals." Thesis, University of Bath, 2011. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.545331.

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When speciality chemicals are manufactured within the pharmaceutical industry, they are often produced in stirred batch/semi-batch reactors. A ‘methodology’ was explored, to help with the development of continuous fixed-bed catalytic reactors for this sector. This was tested on two different types of model reactions: (a) In the first, the viability of producing tertiary amines via ‘borrowing hydrogen’ was explored, and the reaction of morpholine and benzyl alcohol was studied, on Ru and Pt catalysts. This provided an opportunity for an early involvement in small-scale batch testing of catalyst

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33

Jong, Thing Soon. "Continuous flow synthesis of chemical building blocks for biological application." Thesis, University of Edinburgh, 2014. http://hdl.handle.net/1842/17938.

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A collection of twenty three selectively mono-protected di- and triamines, masked with the Boc, Fmoc or Ddiv protecting groups, were synthesised via continuous flow synthesis in a self-assembled meso-scale PTFE flow reactor. The continuous flow strategy offered direct access to the mono-protected compounds in good yields, especially in the case of the Fmoc carbamates which circumvented the use of another sacrificial protecting group. Two of the mono-Boc-protected carbamates were used as starting materials to generate N-alkylglycine monomers; synthesised via tandem mono-alkylation and Fmoc carb

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34

Dietrich, Michael Thomas. "COMBINED OZONE AND ULTRASOUND PROCESS FOR THE DESTRUCTION OF 1,4-DIOXANE IN CONTINUOUS FLOW REACTOR." Diss., Temple University Libraries, 2016. http://cdm16002.contentdm.oclc.org/cdm/ref/collection/p245801coll10/id/408072.

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Civil Engineering<br>Ph.D.<br>Clean water is essential to life. Growth in world population, changing diets, and a warming climate are driving an increase in the demand for water. Better management of water resources will help prevent scarcity, but in order to fully meet the future demand for safe, clean drinking water, new water treatment technologies are needed. This dissertation investigates a technology which is not well understood; the combination of ozone and ultrasound as potentially an efficient technology. Since nearly all previously published studies of combined ozone/ultrasound utili

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Vicens, Jim. "Continuous Zeolite Crystallization in Micro-Batch Segmented Flow." Digital WPI, 2018. https://digitalcommons.wpi.edu/etd-theses/1307.

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Zeolites are porous aluminosilicates that occur both naturally and synthetically, having numerous applications in catalysis, adsorption and separations. Despite over a half century of characterization and synthetic optimization of hundreds of frameworks, the exact mechanism of synthesis remains highly contested, with crystallization typically occurring under transport-limited regimes. In this work, a microcrystallization reactor working under segmented oscillatory flow has been designed to produce a semi-continuous flow of zeolite A. The fast injection of the reactants in a mixing section form

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36

Heckman, Laurel Millikan. "Enabling the use of unstable, hazardous reagents with continuous flow synthesis." Thesis, Massachusetts Institute of Technology, 2018. http://hdl.handle.net/1721.1/118267.

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Thesis: Ph. D. in Organic Chemistry, Massachusetts Institute of Technology, Department of Chemistry, 2018.<br>Cataloged from PDF version of thesis. Page 300 blank.<br>Includes bibliographical references.<br>[chemical formula] Highly functionalized 2-arylindoles were synthesized from 2-alkenylarylisocyanides and arylboronic acids using a simple, inexpensive copper catalyst. The reaction exhibits excellent functional group tolerance for both the arylisocyanide and boronic acid coupling partners. To avoid the direct handling of the pungent arylisocyanide starting materials, continuous flow chemis

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37

Zhang, Zhice. "Continuous hydrothermal flow synthesis of nanoceramics for photocatalytic and microwave dielectric applications." Thesis, Queen Mary, University of London, 2009. http://qmro.qmul.ac.uk/xmlui/handle/123456789/359.

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TiO2 is widely considered as a promising photocatalyst to degrade various organic pollutants in water, and to harvest sunlight renewable energy application. However, the efficiency of the photocatalytic reaction using TiO2 is not high due to its wide band-gap (3.22 eV, corresponding to the wavelength of 385 nm), which corresponds to the lower end of the wavelengths of solar light. The aim of this project is to use a continuous hydrothermal flow synthesis (CHFS) technique and other post-treatment methods to synthesize and tailor nano-TiO2 and TiO2-related photocatalysts for improved photoactivi

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Bally, Florence. "Continuous-flow synthesis of branched macromolecular architectures in microsystems : towards biomedical applications." Strasbourg, 2011. http://www.theses.fr/2011STRA6174.

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Des architectures macromoléculaires branchées ont été synthétisées dans le but de développer des matériaux vecteurs de principes actifs. Dans un premier temps, une étude mécanistique a été réalisée en réacteur fermé afin de mieux comprendre la formation de ces architectures selon une technique de polymérisation contrôlée/’vivante’. L’efficacité de branchement présentait des limites, ce qui fut à l’origine du développement d’un microprocédé continu. Ce procédé microfluidique a permis d’accroître significativement la densité de l’architecture macromoléculaire. De plus, des bibliothèques de polym

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Elia, Noelia M. "SEQUENTIAL CO-CULTURE OF ANAEROBIC BACTERIA ON SWITCHGRASS IN A CONTINUOUS FLOW-THROUGH REACTOR FOR BIOFUEL PRODUCTION." UKnowledge, 2014. http://uknowledge.uky.edu/bae_etds/22.

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Solid substrate cultivation (SSC) using lignocellulosic non-food feedstock, such as switchgrass, is an alternative for advanced biofuel production. Acetone-Butanol-Ethanol (ABE) fermentation in two stages using a sequential culture of microorganisms from the class Clostridia is an approach proposed to increase the butanol production. The goal was to test the efficacy of a sequential culture on high solid substrate cultivation in batch and continuous cultivation, and to evaluate conditions to optimize butanol production using switchgrass as substrate. Initial batch experiments were used to dete

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Brito, Bernardo Nascimbeni de. "Effect of the sulfide, pH and temperature on anammox activity in a continuous flow stirred-tank reactor." Universidade Federal de Viçosa, 2015. http://www.locus.ufv.br/handle/123456789/7373.

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Submitted by Marco Antônio de Ramos Chagas (mchagas@ufv.br) on 2016-03-22T08:05:18Z No. of bitstreams: 1 texto completo.pdf: 1424774 bytes, checksum: 7ccd14596778d1d633027447240b9c55 (MD5)<br>Made available in DSpace on 2016-03-22T08:05:18Z (GMT). No. of bitstreams: 1 texto completo.pdf: 1424774 bytes, checksum: 7ccd14596778d1d633027447240b9c55 (MD5) Previous issue date: 2015-09-24<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>Um promissor processo biológico para a remoção de elevadas concentrações de nitrogênio de águas residuárias vem sendo estudado nos últimos 20 a

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Chigondo, Fidelis. "Continuous flow synthesis of silicon compounds as feedstock for solar-grade silicon production." Thesis, Nelson Mandela Metropolitan University, 2016. http://hdl.handle.net/10948/4529.

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This thesis describes the key steps in the production of high purity (solar-grade) silicon from metallurgical-grade silicon for use in the production of photovoltaic cells as alternative renewable, environmentally benign and cheap energy source. The initial part of the project involves the development and optimization of a small chemical production platform system capable of producing alkoxysilanes from metallurgical-grade silicon as green precursors to solar-grade silicon production. Specifically, the main aim of the study was to synthesize trialkoxysilanes in continuous flow mode, although t

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Lubinu, Maria Caterina. "Microwave-mediated synthesis of N-containing heterocycles : from batch to continuous flow processes." Thesis, Cardiff University, 2007. http://orca.cf.ac.uk/54616/.

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Microwave-assisted organic synthesis has received increasing attention in recent years as a valuable alternative to the use of conductive heating for accelerating chemical reactions. Current technology has attempted to overcome the limited dimensions of the standing wave cavity by the use of multimode batch or continuous flow reactors that pump the reagents through the microwave chamber. A new prototype continuous flow microwave reactor using either a 10 mL or 80 mL flow cell has been developed for use with a monomodal instrument. This system possessed a number of advantages over commercially

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Hooper, Julian. "Application of continuous flow technology to the expedient synthesis of isotopically substituted compounds." Thesis, University of Hull, 2008. http://hydra.hull.ac.uk/resources/hull:748.

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Isotopically modified compounds are of great importance to the scientific community owing to the large number of specific uses that exist for them; however, due to their low abundance associated costs are high. Once a small discrete isotopic precursor has been obtained, it must then be incorporated into a more complex molecule at the desired position which creates a major synthetic challenge owing to their limited availability. The difficulties encountered when obtaining isotopically enriched compounds result in phenomenal costs that mean even small quantities of simple molecules are extremely

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Howard, Dougal P. "Continuous hydrothermal flow synthesis of optimised transparent conducting oxide nanoparticles and thin films." Thesis, University College London (University of London), 2017. http://discovery.ucl.ac.uk/10037936/.

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This thesis focuses on the synthesis of a variety of different transparent conducting oxide (TCO) nanomaterials using a continuous hydrothermal flow synthesis process, wherein aqueous solutions of chemical precursors were mixed with heated, pressurised water to facilitate nanoparticle formation. In Chapter 3, a screening investigation was carried out by doping zinc oxide with a number of different elements in order to highlight the most promising systems with regards to electronic conductivity. Of the twenty-four materials tested, zinc oxides doped with aluminium (AZO), gallium (GZO), and sili

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Chen, Man. "Modelling and simulation of continuous hydrothermal flow synthesis process for engineering nano-materials." Thesis, University of Leeds, 2013. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.713486.

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Continuous hydrothermal flow synthesis (CHFS) can be used to produce nanoparticles that have a wide range of applications. In this work, population balance (PB) and computational fluid dynamics (CFD) technique were used to assist CHFS process development. Laboratory-scale experimental studies have been conducted to identify the key parameters required for the computational model. As a result, a PB model was developed to estimate the particle size distribution (PSD). System kinetics including the hydrothermal reaction, material thermodynamics, and particle phenomena including nucleation, growth

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Mongeon, Sébastien. "Active and Passive Mixing for Immiscible Liquid-Liquid Systems: A Performance Evaluation of Novel Micro-Reactors." Thesis, Université d'Ottawa / University of Ottawa, 2018. http://hdl.handle.net/10393/37089.

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Continuous flow reaction using micro-reactors is a valued technology due to its excellent mass and heat transfer performance, reduced reactor volume, handling capacity of hazardous reactions, and many other process intensifications. These intensifications opportunities interest the fine chemicals, pharmaceuticals producers and other multiphase reaction users who currently use batch processes or already use continuous flow. In this thesis, elements of passive and active mixing are investigated for the application of immiscible liquid-liquid systems. In the first study, the effects of geometric

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Darbha, V. R. K. "Evaluation of batch processes for continuous flow synthesis of metal & metal oxide nanomaterials." Thesis(Ph.D.), CSIR-National Chemical Laboratory, Pune, 2013. http://dspace.ncl.res.in:8080/xmlui/handle/20.500.12252/2168.

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Culfaz, Pinar Zeynep. "Synthesis Of Mfi Type Zeolite Membranes In A Continuous System." Master's thesis, METU, 2005. http://etd.lib.metu.edu.tr/upload/12606267/index.pdf.

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MFI type zeolites, are the most widely studied zeolites for membrane separations. Conventionally, zeolite membranes are prepared in batch systems by hydrothermal synthesis in autoclaves. This method has several disadvantages for use in industrial scale for the synthesis of membranes with large areas and complex geometries that are commonly used in membrane modules. The objective of this study is to prepare MFI type zeolite membranes on tubular alumina supports in a continuous system where the synthesis solution is circulated through the tubular supports. Syntheses were carried out using clea

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Garton, Mary Joanne. "Photocatalytic oxidation of selected organic contaminants and inactivation of microorganisms in a continuous flow reactor packed with titania-doped silica." [Gainesville, Fla.] : University of Florida, 2005. http://purl.fcla.edu/fcla/etd/UFE0010842.

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CALMANTI, ROBERTO. "Intensifying organic processes: a “green” toolbox for the synthesis of benign-by-design chemicals from waste feedstocks." Doctoral thesis, Università degli Studi di Trieste, 2021. http://hdl.handle.net/11368/2988357.

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This Ph.D. thesis is centered on developing greener methodologies for the synthesis of bio-based compounds starting from waste or low-value feedstock. The work is divided in two main chapters based on output, one dealing with the synthesis of cyclic organic carbonates (Chapter 2), the other with the synthesis of glycerol derivatives (Chapter 3). In Chapter 2 a novel class of tungstate ionic liquids (TILs) was studied. Different synthetic routes were followed, some already published, others that exploit a green halide-free protocol developed in this thesis. The TILs were initially investigated

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