Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 14 of 14 for “"Coal liquefaction"”.
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Carbon products from coal liquefaction fractions
Processes for coal conversion are being evaluated for the development of carbon-product precursors. In the present work, coal hydrogenation is being considered as a procedure for tailoring the properties of the precursors for specific carbon products. The object of this project is to assess and …
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Modeling of continuous coal liquefaction processes
Includes bibliographical references (pages 173-185).
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CO-steam coal liquefaction in a batch reactor
Includes bibliographical references.
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Coal liquefaction enhancement through iron pentacarbonyl impregnation techniques
Includes bibliographical references.
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China energy issues : energy intensity, coal liquefaction, and carbon pricing
… how technology innovation takes place, I examine coal-to-liquids technology and argue that companies' business diversification strategies are the key driver for the coal-to-liquids development in China. Third, I study the carbon pricing carbon capture and storage, which supplements the other two …
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Assessment of coal liquefaction behavior through product characterization with hyphenated chromatographic/spectroscopic methods
The understanding of liquefaction behaviors, related to a coal's properties and a recycle solvent's composition, is essential for the development of an efficient direct liquefaction process. In this dissertation, a study of the liquefaction behaviors of an Eastern us bituminous and four Western US …
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Vapor-Liquid Equilibrium of Hydro-Treated Anthracene Oil (HAO61)
… anthracene oil under conditions commonly used in coal liquefaction. These data should be useful in coal liquefaction studies and pro cess designs.</p><p>The experiments were performed using the UND EERC's Hot Charge, Time Sample, Batch Autoclave System. Samples could be taken at desired …
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Feasibility of analysis of polar compounds by high performance liquid chromatography with Fourier transform infrared spectroscopic detection
… systems were applied to the analysis of several coal liquefaction samples for heteroatom content. Confirmatory and additional information concerning the samples were provided by field ionization mass spectrometry, gas chromatography/ mass spectrometry and reversed phase liquid chromatography …
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Distribution of Five Elements in Lignite Liquefaction Process Streams
… and sodium was performed on the Project Lignite Coal Liquefaction Process Development Unit (PDU). Determinations of the concentrations of these elements in major flow streams were accomplished by both Neutron Activation Analysis (NAA) and Atomic Absorption (AA) methods of analysis. Element …
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Technoeconomic modelling of coal conversion processes for liquid fuel production
… sources. In particular processes utilizing coal as the feedstock have received considerable interest. These processes can be divided into direct and indirect liquefaction and pyrolysis. This thesis describes the modelling of indirect coal liquefaction processes for the purpose of performing …
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A method for direct coupling of supercritical fluid extraction and supercritical fluid chromatography with application to the analysis of nonvolatile coal derived products
… was demonstrated in the analysis of high boiling coal derived material. Analysis of this material is accomplished by preliminary class separation with subsequent supercritical fluid extraction and analysis by packed column supercritical fluid chromatography. Detection included variable wavelength …