Comparative examination of aerosols of pulverized coal combustion in air and in oxygen with carbon dioxide combustion environments

Publication Type thesis
School or College College of Engineering
Department Chemical Engineering
Author Morris, William James
Title Comparative examination of aerosols of pulverized coal combustion in air and in oxygen with carbon dioxide combustion environments
Date 2009-06-23
Description The purpose of this work was to examine the effects of a change in combustion environment on aerosol formation. Due to the need to provide carbon based energy with carbon capture and sequestration to eliminate carbon emissions, oxy fuel combustion is a technology which is currently under investigation. The main advantage of oxy fuel combustion is that it utilizes a combustion process of fuel, pure oxygen, and recycled CO2 in order moderate flame temperatures. The result is a flue gas which is highly concentrated in CO2 with water vapor which is easily condensed and removed. However, there has been very little research done on the effects of the altered combustion environment from N2/O2 (air) to oxy fired conditions of O2/CO2 on aerosol formation. This work indicates that there are differences in black carbon particle emissions, as well as changes in mechanisms which drive aerosol formation. Of particular interest in the findings was that iron was found in higher relative concentrations in the submicron range of particles in oxy fired conditions compared to air fired conditions. Also, magnesium and calcium appear to be in higher relative concentrations in oxy fired conditions while sodium and potassium seem to be lower in the submicron range. These are all important as these compounds can affect how ash and slag build up on surfaces inside of the furnace.
Type Text
Publisher University of Utah
Subject Carbon emissions; Oxy fuel combusion
Dissertation Institution University of Utah
Dissertation Name MS
Language eng
Relation is Version of Digital reproduction of “Comparative examination of aerosols of pulverized coal combustion in air and in oxygen with carbon dioxide combustion environments” J. Willard Marriott Library Special Collections TP7.5 2009 .M67
Rights Management © William James Morris
Format Medium application/pdf (portable document)
Format Extent 238,192 bytes
Identifier us-etd2,127787
Source Original: University of Utah J. Willard Marriott Library Special Collections
Conversion Specifications Original scanned on Epson GT-30000 as 400 dpi to pdf using ABBYY FineReader 9.0 Professional Edition.
ARK ark:/87278/s6k93p5j
ID 193549
setname ir_etd
Reference URL https://collections.lib.utah.edu/details?id=193549
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