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Effect of Purge Gas Flow Rate and Oxygen Impurity on Heel build-up and Prediction of Heel build-up Using Machine Learning
DownloadFall 2021
Heel buildup, i.e., the accumulation of non-desorbed/non-desorbable adsorbates and their by-products on an adsorbent, during cyclic adsorption/regeneration of volatile organic compounds (VOCs) onto activated carbon decreases its adsorption capacity and lifetime. In this this study, the effect of...
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Effect of Surface Oxygen Groups on Irreversible Adsorption of Volatile Organic Compounds on Beaded Activated Carbon
DownloadSpring 2017
Adsorption by activated carbons is a widely used method for controlling emission of volatile organic compounds (VOCs). However, accumulation of adsorbates and/or regeneration by-products (heel buildup) during cyclic process is a common challenge in this process. Irreversible adsorption restricts...
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Effects of Adsorbate Properties on Heel Buildup on Activated Carbon Fiber Cloth during Electrothermal Regeneration
DownloadSpring 2017
Automotive painting booths are a major source of volatile organic compounds’ (VOCs) in the automotive manufacturing sector. Adsorption on activated carbon (AC) has been widely used as a low cost and energy efficient VOC control method. A major challenge associated with the cyclic...
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Spring 2015
Separation of ethane and heavier hydrocarbons from natural gas stream is a major topic in petrochemical industry due to the increase in Natural gas reserves in North America. Natural gas liquids are frequently separated using a cryogenic distillation process, which is able to separate all the C3+...
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Fall 2011
The removal of solid particulates from crude oils and hydrocarbon streams is a common challenge in refining. Finding a method for efficient removal of the suspended solids in the oil streams is the main objective of this work. Paraffinic and aqueous treatment and the combination of these two...
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Fall 2023
Fixed beds are widely used in the chemical and process industry due to their simple yet effective performance. They find applications in heterogeneous catalysis (e.g., dry reforming of methane, methanol synthesis, etc.) and in adsorption (hydrogen from steam methane reforming, post-combustion CO2...
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Spring 2017
Hoseinzadeh Hejazi, Sayed Alireza
High-purity oxygen above 99.0% is required in many medical and industrial applications such as the pharmaceutical and aerospace applications. Due to the similar physical properties of oxygen and argon, this separation is very challenging. Adsorption separation techniques are more preferable to...
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Spring 2021
Carbon capture utilization and storage (CCUS) play a crucial contribution in reducing CO2 emissions and obtaining net-zero emission by 2050. Adsorbent-based technology offers an opportunity to separate CO2 under mild regeneration conditions. However, low CO2 concentration and water vapour in the...
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Investigation of the Adsorption of Model and Oil Sands Process-Affected Water Naphthenic Acids on Graphite
DownloadSpring 2015
Naphthenic acids (NAs) are constituents of bitumen in the oil sands deposits in northern Alberta, Canada. The extraction process of bitumen creates an enormous amount of wastewater called oil sands process affected waters (OSPW). This OSPW contains elevated concentrations of NAs, and other...
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Fall 2015
Carbon dioxide capture using adsorption based separation processes has shown promise but has not been exploited to full potential to be implemented on a commercial scale. This thesis examines two key stages in the development of adsorption based carbon dioxide capture processes, namely adsorbent...