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Dissertations / Theses on the topic 'Desulfurization'

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Published: 4 June 2021

Last updated: 26 July 2025

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1

Scott, Kevin David. "Electrochemical flue gas desulfurization." Diss., Georgia Institute of Technology, 1985. http://hdl.handle.net/1853/11145.

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2

Alshahrani, Farhan M. "Oxidative desulfurization of diesel fuels." Thesis, University of Oxford, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.491293.

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This thesis describes the development of a simplified catalytic system for the deep removal of sulfur from hydrocarbon-based transportation fuel. The work is divided into four main parts, a literature review of different desulfurization technologies, oxidative desulfurization, the newly developed ODS process and its results, a quantitative and kinetic study of the ODS process. The principal aims of this research were to (i) explore and develop a new oxidative desulfurization process, (ii) measure the efficiency of the process on desulfurization of model solution representing hydrocarbon-based

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3

Sublette, Kerry Lyn. "Microbial desulfurization of natural gas /." Access abstract and link to full text, 1985. http://0-wwwlib.umi.com.library.utulsa.edu/dissertations/fullcit/8510388.

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4

Abín-Fuentes, Andrés. "Mechanistic understanding of microbial desulfurization." Thesis, Massachusetts Institute of Technology, 2013. http://hdl.handle.net/1721.1/81675.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Chemical Engineering, 2013.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (p. 136-143).<br>The increasing global levels of sulfur content in crude oil have motivated the development of alternate desulfurization technologies. Microbial desulfurization or biodesulfurization (BDS) has gained interest due to the ability of certain biocatalysts to desulfurize compounds that are recalcitrant to the currently employed hydrodesulfurization (HDS) technology. Two of the major obstacles to commercialization

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5

Yahya, Rana. "Polyoxometalate catalysis for oxidative desulfurization." Thesis, University of Liverpool, 2015. http://livrepository.liverpool.ac.uk/2052079/.

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Oxidative desulfurization removes sulfur-containing molecules from petroleum feedstocks to upgrade the quality of fuels. It is driven by environmental legislation demanding very low sulfur levels in fuels. The oxidative desulfurization technology usually involves oxidation of sulfur-containing molecules with an appropriate oxidant, e.g. hydrogen peroxide, organic peroxide, etc., followed by extraction of oxidation products from the petroleum feedstock. In this study, new efficient catalysts have been developed for the oxidation of benzothiophenes commonly found in diesel fuel, such as benzothi

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6

Li, Wei. "Coal desulfurization with sodium hypochlorite." Morgantown, W. Va. : [West Virginia University Libraries], 2004. https://etd.wvu.edu/etd/controller.jsp?moduleName=documentdata&jsp%5FetdId=3546.

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Thesis (M.S.)--West Virginia University, 2004.<br>Title from document title page. Document formatted into pages; contains vii, 32 p. : ill. Includes abstract. Includes bibliographical references (p. 32).

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7

Palumbo, Enzo A. "The study of a magnesium wire feeding technique for the desulphurization of molten iron and liquid steel /." Thesis, McGill University, 1985. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=65333.

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8

Monzón, Montebello Andrea. "Aerobic biotrickling filtration for biogas desulfurization." Doctoral thesis, Universitat Autònoma de Barcelona, 2013. http://hdl.handle.net/10803/126525.

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Es va gestionar l'operació d'un biofiltre percolador (BTF) durant un període total de 990 dies per a la dessulfuració d'un biogàs sintètic contenint 2,000 ppmv d’H2S (≈ 50 g S-H2S·m-3·h-1), utilitzant un material de rebliment aleatori (anelles Pall d'acer inoxidable). Després de l'optimització de l'operació a pH neutre, es va estudiar l'eliminació simultània de metilmercaptà (CH3SH) i H2S. A continuació es va executar la transició ininterrompuda des de 440 dies a pH neutre (6.0 – 6.5) a 550 dies a pH àcid (2.50 – 2.75). Paral·lelament es van desenvolupar eines per a la monitorització en línia

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9

Roumeliotis, Ioannis John. "Desulfurization of INCO semi-blister copper." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape8/PQDD_0027/MQ50657.pdf.

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10

Kida, Yuko. "Supercritical Water desulfurization of crude oil." Thesis, Massachusetts Institute of Technology, 2014. http://hdl.handle.net/1721.1/88904.

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Thesis: Ph. D., Massachusetts Institute of Technology, Department of Chemical Engineering, 2014.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references.<br>Supercritical Water (SCW) desulfurization was investigated for both model sulfur compounds and Arab Heavy crude. In part 1, the reactions of alkyl sulfides in SCW were studied. During hexyl sulfide decomposition in SCW, pentane and CO+CO₂ were detected in addition to the expected six-carbon products. A multi-step reaction sequence for hexyl sulfide reacting with SCW is proposed which explains the surprising products

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11

Oliveira, Anabel Tabare de. "Desulfurization of fuels using ionic liquids." Master's thesis, Universidade de Aveiro, 2010. http://hdl.handle.net/10773/3908.

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Mestrado em Engenharia Química<br>Actualmente, é crucial a redução do conteúdo de compostos sulfurados nos combustíveis, uma vez que os organismos governamentais estão a implementar legislações cada vez mais rígidas para diminuir impactos ambientais negativos. Por esta razão, torna-se fundamental desenvolver processos de dessulfuração apropriados e eficientes, no sentido de se corresponder às regulamentações actuais e futuras. O processo mais utilizado para a remoção de compostos sulfurados (Scompostos) tem sido a hidrodessulfuração, mas esta é ineficiente e dispendiosa, pelo que se to

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12

Suryawanshi, N. "Studies in desulfurization of transportation fuels." Thesis(Ph.D.), CSIR-National Chemical Laboratory, Pune, 2018. http://dspace.ncl.res.in:8080/xmlui/handle/20.500.12252/4920.

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13

Besher, Elmarghani M. "Low temperature Claus reactor studies." Thesis, University of British Columbia, 1990. http://hdl.handle.net/2429/30563.

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A small-scale fluidized bed reactor (0.1m ID, 0.86m high) was used to carry out the Claus reaction 2H₂S + SO₂ ⇌3/X Sx + 2H₂O at low temperatures (100 to 150°C) where elemental sulphur condensed on the catalyst particles (Kaiser alumina S-501, 195µm mean particle size). The experimental apparatus was similar to that described by Bonsu and Meisen (1985). The feed gas consisted of pure nitrogen mixed with H₂S and SO₂ in the ratio of 2 to 1. The H₂S concentration was varied from 200 to 1300 ppm. The feed gas flow rate ranged from approximately 1.4 to 5.6 m³/h. The corresponding U/Umf ranges were

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14

Alvarez, Luis Manuel 1975. "Modeling and optimization of microbial desulfurization processess." Thesis, Massachusetts Institute of Technology, 1999. http://hdl.handle.net/1721.1/85282.

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15

Chiang, Ray-Kuang. "Calcium-based sorbents for flue gas desulfurization." Case Western Reserve University School of Graduate Studies / OhioLINK, 1995. http://rave.ohiolink.edu/etdc/view?acc_num=case1062008694.

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16

Carr, Kathryn E. "Evaluation of modified dry limestone process for flue gas desulfurization." Thesis, Virginia Tech, 1988. http://hdl.handle.net/10919/43382.

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17

Caizzi, Adriano. "Modelling desulfurization of Biogas from Biomass gasification plants." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2020.

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This Thesis originates from the demand of a freeware useful to describe the behavior of a filter for biogas. The whole project was done in an Austrian research institute, BioEnergy2020+, based in Graz. Particular attention is focused on hydrogen sulphide (H2S), which is one of the major biogas pollutants. Concentrations above 140 mg m–3 are harmful for human health. The first part of the thesis is a brief explanation of why biogas and biomasses are important in an optic of reduction of greenhouse gases in the European Union, then is shown a brief review of the most promising technologies for

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18

Maat, Hendrik ter. "The development of a novel, selective desulfurization process." Enschede : University of Twente [Host], 2006. http://doc.utwente.nl/57623.

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19

Bavarian, Farshad. "Coal cleaning by microbial desulfurization and selective flocculation /." The Ohio State University, 1990. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487683756127698.

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20

Honkanen, M. (Markus). "Autoclaved desulfurization slag bricks:an opportunity for carbon capture." Master's thesis, University of Oulu, 2019. http://jultika.oulu.fi/Record/nbnfioulu-201908022729.

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Abstract. The goal for this thesis was to study the effects of carbon mineralization to the desulfurization slag based mortar and paste samples using autoclave carbonation procedure. During the study, the effects of different carbonation conditions to the compressive strength and crystal structure of a slag brick were tested. Additionally, a number of different mixtures of sand, slag and water were tested to find the most durable and workable composition. In the first phase of the study, bricks made with different ratios of sand and slag were tested for their compressive strength, in order

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21

Adikesavalu, Ravichandran. "Preliminary modeling of in-duct desulfurization using condensation aerosols." Ohio : Ohio University, 1997. http://www.ohiolink.edu/etd/view.cgi?ohiou1177616476.

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22

Chen, Chi-yu. "Kinetic study of microbial coal desulfurization using thermophilic microorganisms /." The Ohio State University, 1986. http://rave.ohiolink.edu/etdc/view?acc_num=osu148726802174908.

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23

Berry, David A. "Investigation of hot gas desulfurization utilizing a transport reactor." Morgantown, W. Va. : [West Virginia University Libraries], 1999. http://etd.wvu.edu/templates/showETD.cfm?recnum=500.

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Thesis (M.S.)--West Virginia University, 1999.<br>Title from document title page. Document formatted into pages; contains vi, 101 p. : ill. (some col.) Includes abstract. Includes bibliographical references (p. 82-85).

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24

Zhang, Yong. "Models of high temperature desulfurization using zinc based sorbents." Morgantown, W. Va. : [West Virginia University Libraries], 2004. https://etd.wvu.edu/etd/controller.jsp?moduleName=documentdata&jsp%5FetdId=3661.

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Thesis (M.S.)--West Virginia University, 2004.<br>Title from document title page. Document formatted into pages; contains xiv, 74 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 69-71).

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25

Berrigan, John Daniel. "Nanopowder nickel aluminate for benzothiophene adsorption from dodecane." Thesis, Atlanta, Ga. : Georgia Institute of Technology, 2008. http://hdl.handle.net/1853/26580.

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Thesis (M. S.)--Materials Science and Engineering, Georgia Institute of Technology, 2009.<br>Committee Chair: Carter, W.B.; Committee Member: Cochran, Joseph; Committee Member: Venugopal, Ganesh. Part of the SMARTech Electronic Thesis and Dissertation Collection.

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26

Lindström, David. "A Study on Desulfurization of Hot Metal Using Different Agents." Doctoral thesis, KTH, Mikro-modellering, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-144025.

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This thesis deals with desulfurization of hot metal using different agents. The aim of this study was to improve the understanding of commonly used desulfurization agents such as fluidized CaO, CaC2, commercial-CaO, Mg, and mixtures of commercial-CaO-Mg. The possibility to use ZnO for desulfurization of hot metal was also investigated. The desulfurization mechanisms and kinetics of these agents were studied. A broad comparison of the desulfurization abilities of the agents was performed under the same experimental conditions. The experimental studies were carried out in a high temperature resi

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27

Bhandari, Dhaval Ajit. "Hollow fiber sorbents for the desulfurization of pipeline natural gas." Diss., Georgia Institute of Technology, 2010. http://hdl.handle.net/1853/42838.

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Pipeline natural gas is the primary fuel of choice for distributed fuel cell-based applications. The concentration of sulfur in odorized natural gas is about 30 ppm, with acceptable levels being <1 ppm for catalyst stability in such applications. Packed bed technology for desulfurization suffers from several disadvantages including high pressure drop and slow regeneration rates that require large unit sizes. We describe a novel Rapid Temperature Swing Adsorption (RTSA) system utilizing hollow fibers with polymer 'binder', impregnated with high loadings of sulfur selective sorbent 'fillers'.

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28

Kumar, Naresh. "Desulfurization of coal using ethanol, water and ethanol/water mixtures." Ohio : Ohio University, 1993. http://www.ohiolink.edu/etd/view.cgi?ohiou1175712666.

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29

Kelland, D. R. "Magnetic enhancement in High Gradient Magnetic Separation." Thesis, University of Salford, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.384087.

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30

Martin, Gregory Dean. "Microbial Community Composition and Activities in Wet Flue Gas Desulfurization Systems." University of Akron / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=akron1493919370366314.

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31

Taerakul, Panuwat. "Characterization of trace elements in dry flue gas desulfurization (FGD) by-products." Connect to this title online, 2005. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1119038889.

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Thesis (Ph. D.)--Ohio State University, 2005.<br>Title from first page of PDF file. Document formatted into pages; contains xvii, 173 p.; also includes graphics Includes bibliographical references (p. 161-173). Available online via OhioLINK's ETD Center

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32

Iannacone, Meg M. "Evaluation of equalization basins as initial treatment for flue gas desulfurization waters." Connect to this title online, 2007. http://etd.lib.clemson.edu/documents/1202418446/.

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33

Paredez, Jose Miguel. "Coal-fired power plant flue gas desulfurization wastewater treatment using constructed wetlands." Thesis, Kansas State University, 2014. http://hdl.handle.net/2097/18255.

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Master of Science<br>Department of Civil Engineering<br>Natalie Mladenov<br>In the United States approximately 37% of the 4 trillion kWh of electricity is generated annually by combusting coal (USEPA, 2013). The abundance of coal, ease of storage, and transportation makes it affordable at a global scale (Ghose, 2009). However, the flue gas produced by combusting coal affects human health and the environment (USEPA, 2013). To comply with federal regulations coal-fired power plants have been implementing sulfur dioxide scrubbing systems such as flue gas desulfurization (FGD) systems (Alvarez-Ayu

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34

Pasini, Rachael A. "An Evaluation of Flue Gas Desulfurization Gypsum for Abandoned Mine Land Reclamation." The Ohio State University, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=osu1250605536.

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35

Pekay, Lars Arthur. "Investigations in coal chemistry : advancements of analytical techniques and reactive oxidative desulfurization /." The Ohio State University, 1992. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487760357819292.

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36

Furuta, Satoru. "Synthetic Studies on Organofluorine Compounds through Oxidative Desulfurization -Fluorination of Organosulfur Compounds." Kyoto University, 2000. http://hdl.handle.net/2433/151524.

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37

Keskinkilic, Ender. "Examination Of Desulfurization Behaviour Of Ladle Furnace Slags Of A Low-sulfur Steel." Phd thesis, METU, 2007. http://etd.lib.metu.edu.tr/upload/12608978/index.pdf.

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The aim of this research was mainly to investigate desulfurization behaviour of ladle furnace slags of a low-sulfur steel. First, the change of the amount of unstable oxides (FetO and MnO) in slags was studied from the converter till the end of ladle furnace treatment for different steel quality groups. It was found that the change in the amount of unstable oxides could be examined best with low-C steel qualities. Then, the change of activity of iron oxide was investigated for a member of low-C steel quality group, namely 4937K, a low-S steel. The relation between the degree of desulfurization

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38

Duespohl, Dale W. "Modeling and optimization of a cross-flow, moving-bed, flue gas desulfurization reactor." Ohio : Ohio University, 1995. http://www.ohiolink.edu/etd/view.cgi?ohiou1179511746.

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39

Stallard, Michael L. "Precombustion desulfurization of coal by photochemical methods and pyrite depression in froth flotation." Diss., This resource online, 1990. http://scholar.lib.vt.edu/theses/available/etd-07132007-143147/.

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40

Zhang, Xiaoxiao. "CFD analysis of hotmetal desulfurization process for improved mixing in a torpedo vessel." Thesis, Purdue University, 2015. http://pqdtopen.proquest.com/#viewpdf?dispub=1602898.

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<p> A torpedo car is an elongated cylindrical vessel, which is widely used in steel plants to transfer liquid iron from the blast furnace to the melt shop and perform desulfurization process. Removing the sulfur contained in pig iron is very important to meet the stringent quality criteria required in the downstream processes. The desulfurization process is performed in a torpedo vessel during the transportation by injecting desulfurizing reagents into the liquid iron with nitrogen as the carrier gas. An optimization of this process is desired to improve the desulfurization efficiency. I

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41

Ogunlaja, Adeniyi Sunday. "Oxidative desulfurization of fuel oils-catalytic oxidation and adsorptive removal of organosulfur compounds." Thesis, Rhodes University, 2014. http://hdl.handle.net/10962/d1013152.

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The syntheses and evaluation of oxidovanadium(IV) complexes as catalysts for the oxidation of refractory organosulfur compounds in fuels is presented. The sulfones produced from the oxidation reaction were removed from fuel oils by employing molecularly imprinted polymers (MIPs). The oxidovanadium(IV) homogeneous catalyst, [V ͥ ͮ O(sal-HBPD)], as well as its heterogeneous polymer supported derivatives, poly[V ͥ ͮ O(sal-AHBPD)] and poly[V ͥ ͮ O(allylSB-co-EGDMA)], were synthesized and fully characterized by elemental analysis, FTIR, UV-Vis, XPS, AFM, SEM, BET and single crystal XRD for [V ͥ ͮ O

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42

Hung, Kuo-Teng, and 洪國騰. "Biogas desulfurization: Performane study of a full-scale scrubber for biogas desulfurization." Thesis, 2001. http://ndltd.ncl.edu.tw/handle/49098001373543839625.

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碩士<br>國立中山大學<br>環境工程研究所<br>89<br>In this study, a set of full-scale two-stage-in-series scrubbing tower was constructed to test its performance for desulfurization of biogas from three anaerobic UASB (upflow anaerobic sludge blanket) reactors of a wastewater plant for treating corn-syrup processing wastewater. Each stage of the absorbing towers was constructed from a 0.6m × 6 m (I.D. × H) plastic column packed with plastic packings (4” K6 Heilex-Type or 2.5” Crown-Biopacks with packing heights of 5 m and 3.65 m, respectively). Effluent from the activated sludge sedimentation tank of the wast

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43

Song, Hoon Sub. "Desulfurization by Metal Oxide/Graphene Composites." Thesis, 2014. http://hdl.handle.net/10012/8341.

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Desulfurization of liquid and gas phase sulfur compounds has been receiving dramatic attention since sulfur compounds cause environmental damages (especially acid rain) and pose industrial challenges (i.e. corrosion of equipment and deactivation of catalysts). This thesis has focused on the removal of liquid phase aromatic sulfur compounds (i.e. thiophene or dibenzothiophene (DBT)), as well as on the removal of gas phase hydrogen sulfide (H2S) through adsorption method by metal oxide/graphene composites. More specifically, the effects of graphene (or reduced graphite oxide) as a substrate were

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44

Jain, Sapna. "Plastic state desulfurization of Indian coals." Thesis, 2004. http://localhost:8080/xmlui/handle/12345678/6118.

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45

Julião, Diana Cristina dos Santos Neto. "Oxometal hybrid materials for oxidative desulfurization technology." Doctoral thesis, 2019. http://hdl.handle.net/10773/26664.

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Crude oil contains four classes of compounds: aromatics, cycloalkanes, alkanes and compounds with atoms of sulfur, nitrogen and/or oxygen. The presence of sulfur brings a lot of damage, for the petroleum industry itself as well as for the environment, where is a major contributor of air pollution. The EU has imposed strict legislations on the S content in transportation fuels. However, the production of such ultra-low sulfur fuels by conventional hydrodesulfurization technologies is very costly, due to the harsh conditions (high temperatures and high H2 pressures) needed that are incomp

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46

Chen, Nan-Yu, and 陳南宇. "Development of Process for desulfurization from diesel." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/41152264060035291097.

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碩士<br>國立中正大學<br>化學工程所<br>95<br>The purpose of this study is to search for suitable methods for desulfurizing petroleum distillates containing various amounts of sulfur, such as high sulfur-containing light cycle oil (LCO) from the refinery catalytic cracker, diesel from the residual hydrodesulphurization (RDS) unit, and light diesel from the product hydrodesulphurization (HDS) unit with only 50 ppm sulfur. Different desulphurization methods, including hydrodesulphurization (HDS), oxidation desulphurization (ODS), and extractive desulphurization (EDS), were experimentally investigated in this s

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47

Soong, Yunsung, and 宋雲盛. "The study of spray drying flue gas desulfurization." Thesis, 1995. http://ndltd.ncl.edu.tw/handle/27064189817937480706.

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48

Chu, Kuo-Wei, and 朱國偉. "Cost Function for Wet Desulfurization of Flue Gas." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/09783822841858946097.

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碩士<br>國立臺灣大學<br>環境工程學研究所<br>96<br>Wet method is one of major treatment procedures for flue-gas desulphurization. In Taiwan, there are four kinds of treatment system are used frequently and the market share is over 95%. In order to assist users for better decision-making process, the purpose of this study is to build up a simple cost function and to compare four commonly used wet methods of flue-gas desulphurization as the subject of research. In additions, this study also defines the research scope and rules out the uncertain factors. Based on the simulation results of this cost model

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49

Chu, Chen-Yeon, and 朱正永. "Desulfurization in an Internally Circulating Fluidized Bed Reactor." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/85655093714989056979.

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博士<br>國立清華大學<br>化學工程學系<br>93<br>In this study an attempt was made to use internally circulating fluidized bed reactor (ICFBR) as a flue gas desulfurization reactor. The height of the bed was 2.5 m, and the inner diameter was 9 cm. The bed materials were calcium sorbent and silica sand. One of the special features of the ICFBR is high attrition of the particles in the bed, which would remove the product layer of sulfation and increase the utilization of the calcium sorbent. The other features are easy control of the solids circulation rate and gas residence time in the bed by individually adjus

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50

Hsueh, Kuang-Wei, and 薛光偉. "Flue Gas Desulfurization in a Fluidized Bed Reactor." Thesis, 1999. http://ndltd.ncl.edu.tw/handle/44314234459282095779.

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碩士<br>國立清華大學<br>化學工程學系<br>87<br>Abstract There are three types of commercial SO2 removal system: (1) Dry process, (2) Semi-dry process, and (3) Wet scrubbing process. The calcium utilization and SO2 removal efficiency are low for the dry process. For the semi-dry process, the calcium utilization is higher, but fouling and corrosion of the nozzles and the reactor could be severe. For the wet scrubbing system, a wastewater treatment system is required.The problems mentioned above can be eliminated if gas-solid fluidized bed reactor is used as the desulfurization apparatus. The advantages of

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