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Relevant bibliographies by topics / Thermochemical Studies / Dissertations / Theses

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Dissertations / Theses on the topic 'Thermochemical Studies'

Author: Grafiati

Published: 5 June 2025

Last updated: 1 August 2025

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1

Fiagome, Elizabeth Delanyo. "Thermochemical studies of some iodates." Thesis, Teesside University, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.387140.

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2

Davies, Joanne Wendy. "Studies of gas-phase radical reactions." Thesis, University of Oxford, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.329952.

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3

Aubry, Christiane. "Thermochemical and mass spectrometric studies of gas phase ions." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/nq26103.pdf.

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4

Stewart, Paul Hendry. "Theoretical and experimental studies of unimolecular reactions relevant to combustion and the atmosphere." Thesis, University of Aberdeen, 1986. http://digitool.abdn.ac.uk/R?func=search-advanced-go&find_code1=WSN&request1=AAIU366734.

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The pyrolysis of methyl nitrite (1 torr) in the presence of nitrogen dioxide (1 torr) was studied at 458K over the pressure range 0-760 torr of carbon tetrafluoride. The only detectable products were methyl nitrate and formaldehyde. The decomposition can be described by the following simple mechanism: CH₃ONO + M → CH₃O + NO + M (1); CH₃O + NO₂ → CH₃ONO₂ (2); CH₃O + NO₂ → HCHO + HONO (3). Step (1) was found to be stongly pressure dependent with a P½ value of 760 torr. The rate constant for decomposition k₁ was found from RRKM modelling to be given by the following expression: log (k₁/s⁻¹) = 15.

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5

Dasopoulos, P. "Thermochemical studies of siliceous zeolites for vapour phase adsorption processes." Thesis, University of Surrey, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.374206.

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6

Villano, Stephanie M. "Gas-phase negative ion chemistry: Photoelectron spectroscopy, reactivity, and thermochemical studies." Connect to online resource, 2008. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:3337158.

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7

Schmidt, Mark. "Thermochemical Treatment of TiO2 Nanoparticles for Photocatalytic Applications." Scholar Commons, 2007. http://scholarcommons.usf.edu/etd/3428.

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Titanium Dioxide (TiO 2) has been considered an ideal photocatalyst due to factors such as its photocatalytic properties, chemical stability, impact on the environment and cost. However, its application has been primarily limited to ultraviolet (UV) environments due to its high band gap (3.2 eV). This high band gap limits the harvesting of photons to approximately 4% of sunlight radiation. Research today is focused on lowering this gap by doping or coupling TiO 2 with other semiconductors, transition metals and non-metal anions, thereby expanding its effectiveness well into the visible range

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8

Khan, Mohammad A. "Thermochemical kinetic studies of organic peroxides relevant to the combustion of hydrocarbons." Thesis, University of Aberdeen, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.290241.

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In the combustion of fuels and related organic compounds the initial step consists of a free radical forming process occurring either homogeneously or heterogeneously, such as RH + O<sub>2 → R + HO</sub>_2 (1) The radical R, reacts with oxygen to produce an alkyl or other peroxy radical: R + O_2 ↔ RO<sub>2</sub> (2) One of the controversies involved in the mechanism for the oxidation of hydrocarbons is the route for the unimolecular decomposition of the hydroperoxy alkyl radical (R<sub>-H</sub>OOH). This would be produced as a result of the isomerisation of the alkyl peroxy radical (RO<sub>2</

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9

Wang, Lijun. "Experimental and modelling studies of the thermophysical and thermochemical properties of some slag systems." Doctoral thesis, Stockholm : Skolan för teknikvetenskap, Kungliga Tekniska högskolan, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-11232.

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10

Romero, Gonzalez Moises Alfonso. "Low temperature studies for the sulphuric acid decomposition step in HyS and Sl thermochemical cycles." Thesis, University of Sheffield, 2013. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.632823.

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11

Häggström, Gustav. "Experimental studies of ash transformation processes in thermochemical conversion of P-rich biomass and sludge." Licentiate thesis, Luleå tekniska universitet, Energivetenskap, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-78593.

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The efficient use of resources and sustainable recovery of various materials are important to minimize the anthropogenic impact on the climate and environment. One such resource is the phosphorus present in manure and sewage sludge. Various technologies are currently being developed to recover the phosphorus for the use of fertilizers in agricultural applications. Thermochemical conversion presents an opportunity to recover energy from these materials. At the same time, elements can be recovered in ash fractions, potentially harmful organic substances can be destroyed and heavy metals fraction

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12

Mukherjee, Sumit. "Studies on thermochemical properties of small organic molecules by mass spectrometry in relation to computational chemistry." Scholarly Commons, 2010. https://scholarlycommons.pacific.edu/uop_etds/2424.

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Melamine and cyanuric acid are widely used in industry and in scientific research. The mixture of melamine and cyanuric acid can form a hydrogen-bonded network structure which has been used as a surface template in supramolecular chemistry. In this work, the thermochemical properties of melamine and cyanuric acid were characterized using mass spectrometry measurements and computational studies. The proton affinity and the gas-phase acidity were determined with the application of the extended Cooks kinetic method. A triple-quadrupole mass spectrometer equipped with an electrospray source was em

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13

Romero, Gonzalez Moises A. "Low temperature studies for the sulphuric acid decomposition step in the HyS and SI thermochemical cycles." Thesis, University of Sheffield, 2013. http://etheses.whiterose.ac.uk/4199/.

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Hydrogen is a promising element for the transition from fossil fuels, even though the majority of industrial hydrogen production methods are not carbonneutral. There are, however, alternatives which could produce this CO2 free fuel on a massive scale. In particular, thermochemical cycles, including the Hybrid Sulfur (HyS) and Sulfur-Iodine (SI) cycles, which share a common sulphuric acid decomposition step. This project continues the work done by Shaw (2008), which involved the acquisition of experimental data relevant to the production of Hydrogen in the sulphur family of thermochemical cycle

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14

Singhania, Amit. "Studies on catalytic decomposition of hydrogen iodide for hydrogen production in thermochemical sulphur-iodine (SI) cycle." Thesis, IIT Delhi, 2016. http://localhost:8080/xmlui/handle/12345678/7084.

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15

Lilova, Kristina Ilcheva. "Thermochemical and topological studies of systems constitued by transition metals (Co, Ni) with Sn and Bi." Nancy 1, 2007. http://www.theses.fr/2007NAN10016.

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Ce travail avait pour but de déterminer des enthalpies de formation et des équilibres de phases dans des alliages susceptibles de remplacer la brasure au plomb, à base Bi-Sn avec des additions de Co ou Ni (souvent utilisés dans les substrats en électronique). Les expériences ont été menées dans deux calorimètres : Calvet et Gachon. D’autres techniques : DSC, ATD, EMPA, DRX ont été mises à contribution. Le système Co-Sn a été modélisé par la méthode CALPHAD. CoSn : La calorimétrie de réaction directe a donné les enthalpies de formation de Co3Sn2, CoSn, CoSn2 and CoSn3 à 1287, 1033, 629 et 605 K

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16

Clark, Rowan Elizabeth. "Structural studies of salt hydrates for heat-storage applications." Thesis, University of Edinburgh, 2018. http://hdl.handle.net/1842/31333.

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Salt hydrates have the potential to be used in heat storage as both phase-change materials (PCMs) and thermochemical materials (TCMs). These materials offer advantages over traditional heat storage methods due to their high energy densities. However, both domestic and industrial applications require thousands of thermal cycles and there are often many issues that need to be overcome before these materials can be used reliably for heat storage. One of the major issues with using salt hydrates as PCMs is incongruency - the formation of anhydrous phases during melting. In this research, the mecha

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17

COSTA, GUSTAVO C. C. da. "Sintese, caracterizacao estrutural, termoquimica e eletrica de materiais ceramicos para celulas a combustivel de oxido solido." reponame:Repositório Institucional do IPEN, 2008. http://repositorio.ipen.br:8080/xmlui/handle/123456789/11784.

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Made available in DSpace on 2014-10-09T12:55:47Z (GMT). No. of bitstreams: 0<br>Made available in DSpace on 2014-10-09T14:05:19Z (GMT). No. of bitstreams: 0<br>Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)<br>Tese (Doutoramento)<br>IPEN/T<br>Instituto de Pesquisas Energeticas e Nucleares - IPEN-CNEN/SP<br>FAPESP:05/54171-4

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18

Lee, Man Su. "Theoretical studies of UT-3 thermochemical hydrogen production cycle and development of calcium oxide reactant for UT-3 cycle and carbon dioxide capture." [Gainesville, Fla.] : University of Florida, 2008. http://purl.fcla.edu/fcla/etd/UFE0021178.

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19

Mahjoor, Parisa. "Synthetic, Structural and Thermochemical Studies of N-Heterocyclic Carbene (NHC) and Tertiary Phosphine Ligands in the Ni(CO)2(L)x (L-PR3, NHC) Systems." ScholarWorks@UNO, 2004. http://louisdl.louislibraries.org/u?/NOD,165.

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Thesis (M.S.)--University of New Orleans, 2004.<br>Title from electronic submission form. "A thesis ... in partial fulfillment of the requirements for the degree of Master of Science in the Department of Chemistry."--Thesis t.p. Vita. Includes bibliographical references.

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20

Råberg, Mathias. "Black liquor gasification : experimental stability studies of smelt components and refractory lining." Doctoral thesis, Umeå University, Energy Technology and Thermal Process Chemistry, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-1151.

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<p>Black liquors are presently combusted in recovery boilers where the inorganic cooking chemicals are recovered and the energy in the organic material is converted to steam and electricity. A new technology, developed by Chemrec AB, is black liquor gasification (BLG). BLG has more to offer compared to the recovery boiler process, in terms of on-site generation of electric power, liquid fuel and process chemicals. A prerequisite for both optimization of existing processes and the commercialization of BLG is better understanding of the physical and chemical processes involved including interact

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21

Pinilla, Maria Juliana. "Comparative Life Cycle Assessments of Lignocellulosic and Algae Biomass Conversion to Various Energy Products through Different Pathways." Scholar Commons, 2011. http://scholarcommons.usf.edu/etd/3740.

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Bioenergy has the potential to reduce the world's dependence on fossil fuels, and to decrease the CO2 emissions due to fossil combustion. Lignocellulosic and algae biomass have been presented as promising feedstocks for bioenergy production. In this study, a comparative Life Cycle Assessment (LCA) has been developed to evaluate the environmental impacts associated with different energy products via different routes across the whole life of algal and lignocellulosic bioenergy. Results were compared per energy basis, the production of 1 million BTU of energy products. For the development of the

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22

Patel, Nikhil. "Studies On The Combustion And Gasification Of Concentrated Distillery Effluent." Thesis, Indian Institute of Science, 2000. https://etd.iisc.ac.in/handle/2005/274.

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The need for effective disposal of huge volumes of industrial waste is becoming more challenging due to expected imposition of stringent pollution control regulations in the near future. Thermochemical conversion, particularly gasification of organics in the waste is considered the best route from the perspective of volume reduction and prevalent eco-friendly concept of waste-to-energy transformation. It is considered imperative to have adequate understanding of basic combustion features as a part of the thermochemical conversion process, leading to gasification. The aim of this thesis is to u

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23

Patel, Nikhil. "Studies On The Combustion And Gasification Of Concentrated Distillery Effluent." Thesis, Indian Institute of Science, 2000. http://hdl.handle.net/2005/274.

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The need for effective disposal of huge volumes of industrial waste is becoming more challenging due to expected imposition of stringent pollution control regulations in the near future. Thermochemical conversion, particularly gasification of organics in the waste is considered the best route from the perspective of volume reduction and prevalent eco-friendly concept of waste-to-energy transformation. It is considered imperative to have adequate understanding of basic combustion features as a part of the thermochemical conversion process, leading to gasification. The aim of this thesis is to u

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24

Chatre, Lucas. "Étude et modélisation des phénomènes de transport et réactionnels dans un four à vis." Electronic Thesis or Diss., université Paris-Saclay, 2024. http://www.theses.fr/2024UPASB034.

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Les convoyeurs à vis sont très largement utilisés dans l'industrie chimique. Du fait de leur capacité de mélange et de transport, ils sont mis en œuvre pour différentes applications (convoyage, séchage, pyrolyse, etc.). Cette technologie se voit ainsi utilisée dans le retraitement de matière nucléaire, notamment pour stabiliser des oxalates de plutonium en oxyde. De nombreuses études ont été menées à l'échelle du laboratoire afin d'établir précisément les mécanismes réactionnels par analyse thermogravimétrique (ATG) et les propriétés physico-chimiques des espèces mises en jeu. Il s'agit de réa

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25

Kumar, Ajay. "Biomass thermochemical gasification experimental studies and modeling /." 2009. http://proquest.umi.com/pqdweb?did=1799711511&sid=2&Fmt=2&clientId=14215&RQT=309&VName=PQD.

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Thesis (Ph.D.)--University of Nebraska-Lincoln, 2009.<br>Title from title screen (site viewed October 13, 2009). PDF text: xiv, 183 p. : ill. (some col.) ; 1 Mb. UMI publication number: AAT 3358961. Includes bibliographical references. Also available in microfilm and microfiche formats.

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26

Asheruddin, Mohammed N. "Thermochemical conversion of biomass – single particle and packed bed: Experimental and Numerical Studies." Thesis, 2023. https://etd.iisc.ac.in/handle/2005/6056.

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The current work uses experimental and numerical techniques to analyze the thermochemical conversion of a single biomass particle exposed to various reactive environments – varying temperatures and O2, CO2 and H2O concentrations. The single-particle analysis is extended to packed beds, wherein a biomass bed is subjected to controlled reactive environments as occurring in practical gasification units: the evolution of temperature, conversion and gas composition through the bed is studied. The work ultimately results in a multi-scale packed bed numerical model, resolved to the individual particl

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27

Govender, Ursula Penelope. "Thermodynamics of liquid mixtures : experimental and theoretical studies on the thermochemical and volumetric behaviour of some liquids and liquid mixtures." Thesis, 1996. http://hdl.handle.net/10413/4823.

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The excess molar volumes VEm and the excess molar enthalpies HEm have been determined for several binary systems at 298.15 K using an Anton Paar Digital Densitometer and a 2277 Thermal Activity Monitor, respectively. VEm and HEm have been determined over the whole composition range for three types of binary mixtures involving hydrogen bonded interactions. The three types are: (i) a short chain alkanol (methanol, ethanol, 1-propanol, 2-propanol) or (ii) a symmetrical secondary amine (di-n-ethylamine, di-n-propylamine) or (iii) 1-alkyne (l-hexyne, 1-heptyne, l-octyne) with a branched chain ether

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