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Dissertations / Theses on the topic 'Coal-tar'

Author: Grafiati

Published: 4 June 2021

Last updated: 26 July 2025

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1

King, Nathan D. "Chemical and physical modification of petroleum, coal-tar, and coal-extract pitches by air-blowing." Morgantown, W. Va. : [West Virginia University Libraries], 2004. https://eidr.wvu.edu/etd/documentdata.eTD?documentid=3561.

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Thesis (M.S.)--West Virginia University, 2004.<br>Title from document title page. Document formatted into pages; contains viii, 181 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 107-112).

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2

Griffin, Thomas Paul. "Intrapartical secondary reactions of tar during bituminous coal pyrolysis." Thesis, Massachusetts Institute of Technology, 1989. http://hdl.handle.net/1721.1/14189.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Chemical Engineering, 1989.<br>GRSN 408655<br>Science hard copy bound in 2 v.<br>Includes bibliographical references (leaves 255-261).<br>by Thomas Paul Griffin.<br>Ph.D.

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3

Kong, Lingjun. "Characterization of Mineral Oil, Coal Tar and Soil Properties and Investigation of Mechanisms That Affect Coal Tar Entrapment in and Removal from Porous Media." Diss., Georgia Institute of Technology, 2004. http://hdl.handle.net/1853/5093.

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Mineral oils and coal tars are complex nonaqueous phase liquids (NAPLs), which can serve as long-term sources of ground water contamination. Very limited data are available on mineral oil and coal tar entrapment in and removal from porous media. Thus, the objectives of this research were to evaluate the behavior of these NAPLs in porous media, and investigate the mechanisms governing NAPL entrapment in and recovery from porous media. Quantification of properties of three commercial mineral oils and six MGP coal tars reveals that mineral oils are slightly viscous LNAPLs (density: ~0.88 g/cm3;

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4

Twigg, Anthony Nicholas. "The characterisation and modification of binders used in the manufacture of carbon anodes." Thesis, University of Wolverhampton, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.329130.

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5

King, Mark William George. "Migration and natural fate of a coal tar creosote plume." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/nq21360.pdf.

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6

Chang, Cliff Cheng-Shiou. "Thermal reactions of freshly generated coal tar over calcium oxide." Thesis, Massachusetts Institute of Technology, 1986. http://hdl.handle.net/1721.1/15046.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Chemical Engineering, 1986.<br>MICROFICHE COPY AVAILABLE IN ARCHIVES AND SCIENCE.<br>Bibliography: leaves 351-363.<br>by Cliff Cheng-Shiou Chang.<br>Ph.D.

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7

Behrouzi, Mahtab. "Petroleum asphaltenes and coal tar pitch : a structural and interfacial study." Thesis, Imperial College London, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.436342.

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8

Takekawa, T. "Chemistry of mesophase formation." Thesis, University of Newcastle Upon Tyne, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.379323.

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9

Kithinji, Jacob P. "Extraction and chromatography of supercritical fluids." Thesis, University of Leeds, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.329092.

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10

O'Brien, Robert John. "Tar production in coal pyrolysis : the effect of catalysts, pressure and extraction." Thesis, Imperial College London, 1987. http://hdl.handle.net/10044/1/47459.

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11

Matzinos, Panagiotis D. "Coal-tar pitch as the matrix carbon precursor in carbon-carbon composites." Thesis, Loughborough University, 1995. https://dspace.lboro.ac.uk/2134/28083.

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Coal-tar pitch is a promising carbon matrix precursor for carbon-carbon composites. It has a suitable viscosity, high carbon yield, and it forms graphitic structures. In addition, pitch is a relatively cheap raw material. This thesis is a study on the use of coal-tar pitch as carbon matrix precursor in carbon–carbon composites.

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12

Pironi, Paolo. "Smouldering combustion of organic liquids in porous media for remediating NAPL-contaminated soils." Thesis, University of Edinburgh, 2010. http://hdl.handle.net/1842/3222.

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This research investigated the potential of smouldering combustion to be employed as a remediation approach for soil contaminated by non-aqueous phase liquids (NAPLs). Small-scale (~15 cm), proof-of-concept experiments were the first to demonstrate that organic liquids embedded within an inert soil matrix can be successfully smouldered. Intermediate-scale (~30 cm) column experiments examined in detail the behaviour of the combustion process including its relationship to mass and energy balance and the evolution of temperature profiles. In addition, detailed evaluations of environmental paramet

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13

Forsey, Steven. "In situ Chemical Oxidation of Creosote/Coal Tar Residuals: Experimental and Numerical Investigation." Thesis, University of Waterloo, 2004. http://hdl.handle.net/10012/1275.

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Coal tar, coal tar creosote and oily wastes are often present as subsurface contaminants that may migrate below the water table, leaving a widely distributed residual source of contaminants leaching to the ground water. <i>In situ</i> chemical oxidation is a potentially viable technology for the remediation of aquifers contaminated with creosote and coal tars. The oxidant of choice would be flushed through the contaminated area to oxidize aqueous contaminants and enhance the mass transfer of contaminants from the oil phase. A series of batch and column experiments were performed to asse

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14

Iravani, Mohammad Ali. "Monitoring the remediation of coal tar in contaminated soil using electro-geophysical methods." Electronic Thesis or Diss., Sorbonne université, 2020. http://www.theses.fr/2020SORUS330.

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Au cours des deux dernières décennies, la dépollution et la surveillance des sites pollués sont devenus une question sociétale importante. Les techniques classiques de surveillance par piézomètres et piézairs ne suffisent pas pour suivre les changements caractéristiques dans le sous-sol de ces sites en raison de leur caractère ponctuel. Ainsi l’interprétation de données géophysiques acquises lors de la surveillance de tels sites est un outil pour la dépollution de leurs sols. Les propriétés géophysiques sont des paramètres clés dans la validation des méthodes de dépollution des sols contaminés

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15

Blom, Maria. "Förekomst och urlakning av PAH längs med väg 805, Jokkmokks kommun." Thesis, Umeå universitet, Institutionen för ekologi, miljö och geovetenskap, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-144314.

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The purpose of this study was to determine if any amount of PAH (Polycyclic aromatic hydrocarbons) was leaching from the paved road surface of road 805 in Jokkmokk municipality. The study was also meant to determine which factors affected the leaching of PAH in the studied area.The surveyed road was divided into eight sections. Groundwater pipes were inserted into drilled holes, three in each section. Samples from soil, water and asphalt were collected from each section and analyzed for its content of PAH. The groundwater level was measured before each sampling. Some soil samples were analyzed

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16

Thorns, Leisha Jane. "A novel polymeric approach to the cold cure briquetting of anthracite/breeze fines." Thesis, University of Strathclyde, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.366909.

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17

Maier, Matthias. "The mobilisation of polycyclic aromatic hydrocarbons from the coal tar lining of water pipes." Thesis, University of Surrey, 1998. http://epubs.surrey.ac.uk/842793/.

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Coal-tar was commonly used as an internal lining for corrosion protection of water pipes from the 19th century up to the present. It is reported that these coatings can lead to elevated concentrations of Polycyclic Aromatic Hydrocarbons (PAHs) in the distributed drinking water. The aim of the project was to investigate the processes and mechanisms responsible for the occurrence of these substances in drinking water distribution systems. The results presented in this project showed that the occurrence of PAHs in a distribution system was linked to the presence of the disinfectants chlorine and

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18

MacKay, Allison Ann. "Groundwater fate of aromatic hydrocarbons at industrial sites : a coal tar site case study." Thesis, Massachusetts Institute of Technology, 1998. http://hdl.handle.net/1721.1/49984.

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19

Ogden, Gary N. "The quality of binder-filler interfaces in carbon electrodes." Thesis, Loughborough University, 1995. https://dspace.lboro.ac.uk/2134/7049.

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The aims of this research project were to identify and classify the binder-filler interfaces formed in carbon electrodes and to determine the effects of the interfacial quality on important electrode properties. The effects of raw materials and some fabrication process variables on interfacial characteristics and quality of laboratory produced test electrodes were also studied, and the development of binder-filler interfaces during the carbonisation process followed. Electrode quality was assessed by measurement of density, electrical resistivity and tensile strength. Pore structural data were

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20

Anderson, Joshua. "Polycyclic Aromatic Hydrocarbon Release from Pavement Rejuvenators Due to Rolling Wheel Contact: An Investigation Using a Model Mobile Load Simulator." Digital WPI, 2019. https://digitalcommons.wpi.edu/etd-theses/1293.

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Polycyclic aromatic hydrocarbon (PAH) compounds, which are common to coal tar and coal-tar-based products, are ubiquitous environmental contaminates with carcinogenic effects to human health and aquatic life. Transport of PAHs via solid phase particulate motion, gaseous phase volatilization, and aqueous phase dissolution into urban waterbodies of PAH compounds from coal-tar-based pavement sealant products has been studied. Pavement rejuvenators are products applied to increase the usable life of pavement. Coal-tar-based rejuvenators contain a significantly larger mass fraction of coal-tar with

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21

Gallacher, Christopher. "Environmental forensics of coal tar using two dimensional gas chromatography time-of-flight mass spectrometry (GCxGC-TOFMS)." Thesis, University of Strathclyde, 2016. http://digitool.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=27887.

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Coal tars are complex mixtures of inorganic and organic compounds, which are dominated by PAHs and were produced as a by-product of the former manufactured gas industry. Forensic analysis of coal tar samples was carried out using two dimensional gas chromatography coupled with time-of-flight mass spectrometry (GCxGC-TOFMS). This thesis first presents the application of existing multivariate statistical models developed using UK tar samples to tar samples from the USA as well as identifying 947 individual compounds present within the tars. This has important implications as this study demonstra

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22

Smith, Catherine Claire. "The mouse tail model in dermatology : a histological study on the effects of crude coal tar and isoquinoline." Thesis, University of Cambridge, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.236062.

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This study involves a morphological and histological investigation of normal mouse tail skin and its response to crude coal tar and isoquinoline (a major constituent of coal tar). Mouse tail skin is unusual in that it undergoes both parakeratotic and orthokeratotic keratinization in adjacent sites. The former develops without a granular layer and resembles psoriasis, while the latter, with a granular layer, resembles normal human skin. Based on this property, mouse tail skin has frequently been used as a model for psoriasis but in spite of this, an integrated, detailed picture of its structure

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23

Groher, Daniel. "An investigation of factors affecting the concentrations of polycyclic aromatic hydrocarbons in groundwater at coal tar waste sites." Thesis, Massachusetts Institute of Technology, 1990. http://hdl.handle.net/1721.1/14055.

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24

Lewis, Aaron D. "Gasification of Biomass, Coal, and Petroleum Coke at High Heating Rates and Elevated Pressure." BYU ScholarsArchive, 2014. https://scholarsarchive.byu.edu/etd/4373.

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Gasification is a process used to convert any carbonaceous species through heterogeneous reaction to obtain the desired gaseous products of H2 and CO which are used to make chemicals, liquid transportation fuels, and power. Both pyrolysis and heterogeneous gasification occur in commercial entrained-flow gasifiers at pressures from 4 to 65 atm with local gas temperatures as high as 2000 °C. Many gasification studies have been performed at moderate temperatures, heating rates, and pressures. In this work, both pyrolysis and char gasification experiments were performed on coal, petroleum coke, an

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25

Bommarito, Thomas. "TOXICITY OF SEDIMENTS CONTAINING COAL-TAR PAVEMENT SEALANTS TO NOTOPHTHALMUS VIRIDESCENS AND AMBYSTOMA MACULATUM, SURROGATE SPECIES FOR EURYCEA SOSORUM." Available to subscribers only, 2009. http://proquest.umi.com/pqdweb?did=1796420441&sid=6&Fmt=2&clientId=1509&RQT=309&VName=PQD.

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26

Pieltain, Francoise Joelle Marie. "The effect of different rainfall regimes and drainage conditions on the mobility of PAHs from soil contaminated with coal tar." Thesis, King's College London (University of London), 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.261887.

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27

Ed, Maria. "Miljöteknisk undersökning enligt MIFO : en studie på fastigheten Bodsjölandet 1:14 avseende den nedlagda tjärfabriken i Grötingen." Thesis, Uppsala University, Department of Earth Sciences, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-88819.

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<p>During 40 years of industrial production, from the end of the 1890’s until the end of 1930’s, coal and wood distillation products were manufactured in AB Carbo’s tar factory along the River Gimån in Grötingen, in the county of Jämtland, Sweden. In accordance with the Swedish Environmental Protection Agency’s Methods for Inventories of contaminated sites, MIFO, the site in Grötingen has been identified as a potentially contaminated site. In order to determine whether toxic substances pose a threat to human health and ecological systems in the area, there was a need to investigate the presenc

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28

Van, der Merwe Cornelius Johannes. "Evaluation of thermal desorption as an alternative technique for the measurement of coal tar pitch volatiles / Cornelius Johannes van der Merwe." Thesis, North-West University, 2011. http://hdl.handle.net/10394/8080.

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Motivation: The accurate and reliable measurement of the concentration of coal tar pitch volatiles (CTPVs) in ambient air has proved to be a challenge for occupational hygienists. The challenge must however be confronted due to, amongst others, the carcinogenic properties of some poly–aromatic hydrocarbons (PAHs) contained in CTPVs. Aim: To determine the feasibility of a thermal desorption (TD) technique based method as an alternative method to be used for the measurement of the concentration of CTPVs in ambient air by assessing it along criteria such as ease of use, cost, accuracy and precisi

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Klebingat, Stefan [Verfasser], Rafig Akademischer Betreuer] Azzam, and Peter [Akademischer Betreuer] [Quicker. "Development, validation and scenario analyses of two Underground Coal Gasification (UCG) model approaches focussing on gas quality-tar production control and tar pollutant-water solubility risk prognoses / Stefan Klebingat ; Rafig Azzam, Peter Georg Quicker." Aachen : Universitätsbibliothek der RWTH Aachen, 2016. http://d-nb.info/1157122434/34.

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30

Hattingh, Barend Burgert. "Product evaluation and reaction modelling for the devolatilization of large coal particles / Barend Burgert Hattingh." Thesis, North-West University, 2012. http://hdl.handle.net/10394/8739.

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A fundamental understanding of the process of devolatilization requires extensive knowledge of not only the intrinsic properties of the parent coal and its subsequent formed products (tars, gases and chars), but also its characteristic reaction rate behaviour. Devolatilization behaviour has been extensively addressed in literature with the use of powdered coal samples, which normally do not adhere to particle size constraints of coal conversion processes utilizing lump coal. The aim of this investigation was therefore to assess the devolatilization behaviour (with respect to product yield and

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31

Di, Corleto Ross. "Biological monitoring of occupational exposure to polycyclic aromatic hydrocarbons in prebake smelting." Thesis, Queensland University of Technology, 2010. https://eprints.qut.edu.au/37639/1/Ross_Di_Corleto_Thesis.pdf.

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In 1984, the International Agency for Research on Cancer determined that working in the primary aluminium production process was associated with exposure to certain polycyclic aromatic hydrocarbons (PAHs) that are probably carcinogenic to humans. Key sources of PAH exposure within the occupational environment of a prebake aluminium smelter are processes associated with use of coal-tar pitch. Despite the potential for exposure via inhalation, ingestion and dermal adsorption, to date occupational exposure limits exist only for airborne contaminants. This study, based at a prebake aluminium s

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32

Hanser, Ogier. "La matière organique dissoute issue de sols contaminés par des goudrons de houille : vers une meilleure compréhension de sa nature et de sa réactivité." Thesis, Université de Lorraine, 2015. http://www.theses.fr/2015LORR0019/document.

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De nombreuses friches héritées d’activités industrielles révolues présentent des pollutions organiques persistantes (charbon, goudron…). Alors que la réglementation impose un une évaluation du degré de contamination de ces sites, elle ne prend pas en compte les sous-produits de transformation tels que les composés polaires, peu considérés. Pourtant ils se solubilisent dans la phase aqueuse par percolation des eaux météoriques à travers ces surfaces contaminées. Bien que la littérature ciblant la matière organique dissoute (MOD) d’origine naturelle soit abondante, elle n’est pas directement tra

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33

Guajioty, Eric. "Etude du ressuage en recuisson d'électrodes de carbone imprégnées au brai." Grenoble INPG, 1989. http://www.theses.fr/1989INPG0074.

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La recuisson a 333#oc d'electrodes en carbones impregnees au brai de houille conduit a une importante perte d'impregnant (exsudat: 36%). Le moteur principal de l'ecoulement est constitue par les gaz formes en cours de recuisson dont l'origine est double: (i) thermodecomposition et (ii) reaction du brai avec les groupes oxygenes superficiels du substrat. Leur destruction par prechauffage des electrodes a 800#oc sous azote avant impregnation diminue d'un tiers le ressuage, ameliorant ainsi les caracteristiques de produits apres graphitation

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34

Filsinger, Markus. "PAK-Freisetzung aus tauchgeteerten Rohren unter Berücksichtigung verschiedener Wasserqualitäten." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2004. http://nbn-resolving.de/urn:nbn:de:swb:14-1103360121437-66347.

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Der Einfluss des Biofilms, der Inkrustation, der Fließgeschwindigkeit und der Wasserqualität auf die Freisetzung von PAK wurde in Batch-, Drehkolbenreaktorversuchen und an einem Rohrleitungssystem untersucht. Chlorung von tauchgeteerten Edelstahlcoupons mit Biofilm führten zu einer fast vollständigen Ablösung des Biofilms und einer Zunahme der Freisetzung von Fluoren, Phenanthren und Fluoranthen. Die PAK-Freisetzung von tauchgeteerten Edelstahlcou-pons in einer Lösung von Trinkwasser mit 0,1% Natriumazid als Hemmstoff der Atmungskette, der den Biofilm nicht ablöst, führten zu einer Zunahme all

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35

Sung, Hsueh-Chang, and 宋學昌. "Remove of Coal Tar Base by Solid Acids." Thesis, 1998. http://ndltd.ncl.edu.tw/handle/47637158475813582941.

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碩士<br>國立臺灣大學<br>化學工程學系研究所<br>86<br>The products from coal tar usually contains small amount of t ar bases,such as quinoline (QN) and iso-quinoline (IQN).These impurities may d owngrade the products because of stinking odor and undesired color. The profit s can be significantly increased if tar bases can be reduced in the products. This study proposed a method which used solid acids to remove tar bases throug h adsorption process. Solid acids have similar acidity to liquid acid,while th ey can be regenerat

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36

Fraser, Michelle J. "Long-Term Fate of an Emplaced Coal Tar Creosote Source." Thesis, 2007. http://hdl.handle.net/10012/3399.

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An emplaced source of coal tar creosote within the sandy Borden research aquifer has provided an opportunity to document the long term (5140 days) natural attenuation for this complex mixture. Plumes of dissolved chemicals were produced by the essentially horizontal groundwater flowing at about 9 cm/day. Eleven chemicals were extensively sampled seven times using a monitoring network of ~280 14-point multilevel samplers. A model of source dissolution using Raoult’s Law adequately predicted the dissolution of nine of eleven compounds analysed. Mass transformation has limited the extent of th

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37

Weng, Ying-Pei, and 翁熒珮. "Elimination of odors emitted from hot melting of coal tar." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/17224287897634867246.

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碩士<br>國立中山大學<br>環境工程研究所<br>103<br>Coal tar is a brown or black liquid of extremely high viscosity. Coal tars are complex and variable mixtures of phenols, naphthalene, polycyclic aromatic hydrocarbons (PAHs), and heterocylic compounds. Coal-tar creosote is the most widely used wood and bamboo preservative today; both industrially, processed into wood and bamboo using pressure methods such as &;quot;full-cell process&;quot; or &;quot;empty-cell process,&;quot; and more commonly applied to the materials through brushing. Commercial creosote contains mainly of phenols, cresols, xylenols, naphthal

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38

Divya, Sree V. "Impact of Dispersion of Gases from Combustion of Coal Tar." Thesis, 2015. http://ethesis.nitrkl.ac.in/7932/1/639.pdf.

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This project ‘Impact of Dispersion of gases from combustion of Coal tar’ deals with gases released during combustion of Coal tar and the area affected by these gases. This depends on many parameters. This is solved by using the software “ANSYS”. For modeling, the parameters which affect the flow of gases are need to be known. In general, wind flow, presence of obstacles and temperature may affect the flow.

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SHEN, CHIN-WEI, and 沈晉煒. "Domestic Coal-tar Pitch and Carbon Composite for Lithium Ion Batteries." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/9bcuk6.

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博士<br>逢甲大學<br>材料科學與工程學系<br>107<br>This study uses the coal-tar pitch (R692B-BPR) produced by China Steel Chemical Corporation (CSCC) that applied to the following items: 1. Use pitch in nitrogen and change different variables (temperatures and times) to making the mesophase pitch, then was analyzed size and quantity by polarizing optical microscope, softening point test, differential thermal analysis (DTA), benzene insoluble (B.I.) component and quinoline insoluble (Q.I.) component. With the above analysis to assess the spinning ability of domestic coal-tar pitch. Put the samples into a simpl

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40

Makgato, Seshibe Stanford. "Investigating the effect of substituting fractions of imported coals with coke oven tar on coke quality: pilot plant study." Thesis, 2015. http://hdl.handle.net/10539/16732.

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In this study, coke oven tar addition over a range of 0 – 8 wt.% was evaluated as a possible substitute for imported coals fractions. Coke oven tar used was collected from coke oven tar decanters of the by-products section of the coke making plant. Moisture content in coke oven tar varied depending on the residence time and water carryover from coke oven tar separators to storage tanks. Therefore, various moisture ranges were considered in order to observe its effect on coal blend, carbonization and coke properties. The optimum moisture content in coke oven tar was found to be 3% with a

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41

Chen, Yung-chuan, and 陳永川. "Studies of High Temperature Sulfidation Corrosion in a Coal Tar Distillation Process." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/57647526167770836136.

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碩士<br>國立高雄第一科技大學<br>環境與安全衛生工程所<br>91<br>This study is based the observation of corrosion on a circulation loop system at the coal tar distillation plant over a period of several years. Leakage of the pipeline and major facility was damaged as well. Seventeen emergency shut off had been occurred for this reason from 1997 to 2002. Fire alerts were also occurred due to autoignition of FeS, product in the corrosion reaction, which has drew the attention of the safety concerns. Corrosions of the equipment, frequencies of emergency shut down, and the cost of the inspection is relatively higher t

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42

Chao, Jung-Chi, and 趙榮麒. "Processing of Mesophase Coal-Tar Pitch to be used in Lithium Secondary Batteries." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/873cf2.

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碩士<br>逢甲大學<br>材料科學所<br>91<br>In this study electrochemical characteristics of various carbon electrodes made from mesophase coal-tar pitch, used as the anode of the lithium ion batteries have been investigated. The relationship between the capacity of lithium ion batteries and the microstructure and properties of carbon anodes were carefully examined. The X-ray diffraction and Raman spectra were used to examined the structures of mesophase pitch carbon. Elemental analysis to determine the compositions after different heat treatments, the BET method for analyzing the surface area and the dens

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43

Lin, Chun-Han, and 林君翰. "Fabrication of mesophase pitch using a mixture of coal tar pitch and petroleum pitch." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/77996730589143845560.

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碩士<br>國防大學理工學院<br>材料科學與工程碩士班<br>100<br>The fabrication of the mesophase pitch precursor of carbon fiber with the mixture of coal tar pitch (RBP) and petroleum pitch (A240) was studied. The blends were prepared from different RBP/(A240+RBP) ratio ranging from 20 to 80%. The heat-treatment process was manipulated to develop the precursor of the carbon fiber in the nitrogen flow of 300 sccm under the normal atmosphere pressure and the heating temperature of 420℃ and 430℃ for 2 hr at the raising rate of 3℃min 1 . After the mesophase pitch preparation , the Element Analysis (EA) was used to analyz

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Łamacz, Agata. "Study of catalytic removal of NOx from coal combustion flue gases and tar from coal gasification on CeZrO2 supported metal catalysts." Rozprawa doktorska, 2013. https://repolis.bg.polsl.pl/dlibra/docmetadata?showContent=true&id=64282.

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Łamacz, Agata. "Study of catalytic removal of NOx from coal combustion flue gases and tar from coal gasification on CeZrO2 supported metal catalysts." Rozprawa doktorska, 2013. https://delibra.bg.polsl.pl/dlibra/docmetadata?showContent=true&id=64282.

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Makgatho, Michael. "Coal tar pitch volatiles exposure in a petrochemical refinery plant: a task based exposure assessment." Thesis, 2009. http://hdl.handle.net/10539/6772.

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This study describes tripper car operators’ exposure to coal tar pitch volatiles at an operation at Coal Distribution Steam Plant that involves the use of coal tar mix to feed as fuel the steam generating boilers. A cross-sectional task-based exposure assessment approached was used. The objectives of this study were to monitor tripper car operators’ exposures to coal tar pitch volatiles as benzene soluble fraction and to then compare the measured concentrations with the occupational exposure limit. The general aim of the study was to accumulate data about employee exposure to coal tar pitch vo

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邱毅文. "A Study on the Manufacturing Water-Resistance Membrane of Moisture-Cured PU/Coal Tar Pitch." Thesis, 1995. http://ndltd.ncl.edu.tw/handle/69274860109767432237.

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碩士<br>逢甲大學<br>紡織工程研究所<br>83<br>This study combined the advantages of moisture-cured PU and coal tar pitch to manufacture the water-resis-tance membrane. The experiment changed three difference NCO/OH ratio (1.5, 1.8, 2.0), three difference Diol/Triol (10, 15, 20), four difference Pitch/PU ratio (10, 20, 30, 40)and adds to three difference silane (A-187, A-189, A-1100), then adds to plasticizer (DOP) and slovent (toluene) modify their viscosity and processly. And to study the mix ratio to have the best physical propetry, The result shows found that at the NCO/OH ratio at 1.8, the Diol/Triol r

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Ramjee, Shatish. "Rheological Behaviour and Characterisation of Pitch-Based Carbon Precursors." Thesis, 2015. http://hdl.handle.net/2263/46244.

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Pitch material is an important precursor in the production of carbon bre, carbon composites and synthetic graphite. It has a complex transformation during pyrolysis which incorporates the separation of a liquid crystalline phase, known as mesophase. This thesis attempts to enhance the understanding of this change in composition, structure and its resultant behaviour. In this study, two pitches, a coal-tar pitch (MP110) and a (SASOL) Lurgi-gasi er pitch, are pyrolised to produce material at di erent stages of mesophase development. These pitches produce mesophase of di erent mosaic type

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Wong, Ka-Wai, and 黃家維. "Coal Tar Pitch Coated Natural Graphite as Anode Materials of Lithium Ion Batteries for Electrochemical Effect." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/13093084468663619191.

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Liao, Ni-Ko, and 廖尼軻. "The Study on Thermal Characterization of Mesophase in Coal Tar Pitch and Manufacture of Silicon Carbide." Thesis, 1993. http://ndltd.ncl.edu.tw/handle/69506522033224564398.

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