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All Outputs (15)

Metal oxide modified tubular ceramic membrane for the separation of oil-in-water emulsion. (2024)
Thesis
AISUENI, F.A. 2024. Metal oxide modified tubular ceramic membrane for the separation of oil-in-water emulsion. Robert Gordon University, PhD thesis. Hosted on OpenAIR [online]. Available from: https://doi.org/10.48526/rgu-wt-2445693

Separating lower concentrations of oil-in-water (O/W) emulsion (< 250 mg/l) and smaller oil droplet size (< 20 μm) has been an industry challenge using conventional methods, including adsorption, electrocoagulation, flocculation, bioremediation, cent... Read More about Metal oxide modified tubular ceramic membrane for the separation of oil-in-water emulsion..

Gas diffusion transport characteristics and mathematical description of membrane systems with application for biogas upgrading. (2023)
Thesis
OGUNLUDE, P. 2023. Gas diffusion transport characteristics and mathematical description of membrane systems with application for biogas upgrading. Robert Gordon University, PhD thesis. Hosted on OpenAIR [online]. Available from: https://doi.org/10.48526/rgu-wt-2071771

Greenhouse gas emissions (GHGs) and their effects have been a matter of global concern over the past decade. With growing energy demands to support developing economies, there has been a challenge of harnessing and utilizing renewable energy to meet... Read More about Gas diffusion transport characteristics and mathematical description of membrane systems with application for biogas upgrading..

Complexity in measuring the higher education institution scope 3 emissions. (2023)
Thesis
NAYAK, A.A. 2023. Complexity in measuring the higher education institution scope 3 emissions. Robert Gordon University, PhD thesis. Hosted on OpenAIR [online]. Available from: https://doi.org/10.48526/rgu-wt-2271448

The first step in addressing climate change is to measure carbon emissions derived from greenhouse gases (GHGs). The greenhouse gas protocol is widely accepted and implemented by organisations worldwide. This protocol categorises carbon emissions int... Read More about Complexity in measuring the higher education institution scope 3 emissions..

Immiscible displacement of trapped oil through experimental and data mining techniques. (2021)
Thesis
ABUNUMAH, O. 2021. Immiscible displacement of trapped oil through experimental and data mining techniques. Robert Gordon University, PhD thesis. Hosted on OpenAIR [online]. Available from: https://doi.org/10.48526/rgu-wt-1987936

Extensive experimental and data mining techniques have been applied to investigate the potential and competitiveness of gases used in immiscible gas-enhanced oil recovery (EOR) processes. Methane (CH4), Nitrogen (N2), Air (21%O2/N2) and Carbon Dioxid... Read More about Immiscible displacement of trapped oil through experimental and data mining techniques..

Design and testing of an integrated catalytic membrane reactor for deoxygenating water using hydrogen for down-hole injection and process applications. (2018)
Thesis
ORAKWE, I.R. 2018. Design and testing of an integrated catalytic membrane reactor for deoxygenating water using hydrogen for down-hole injection and process applications. Robert Gordon University, PhD thesis.

Water obtained from the sea contains dissolved oxygen (DO) and is considered to be undesirable for use in down-hole water injection or other process applications. The presence of DO leads to corrosion and other related problems and hence the need for... Read More about Design and testing of an integrated catalytic membrane reactor for deoxygenating water using hydrogen for down-hole injection and process applications..

Innovative hydrocarbons recovery and utilization technology using reactor-separation membranes for off-gases emission during crude oil shuttle tanker transportation and natural gas processing. (2018)
Thesis
SHEHU, H. 2018. Innovative hydrocarbons recovery and utilization technology using reactor-separation membranes for off-gases emission during crude oil shuttle tanker transportation and natural gas processing. Robert Gordon University, PhD thesis.

The increase in greenhouse gas (GHG) concentrations in the atmosphere, as well as the high rate of depletion of hydrocarbon-based resources have become a global concern. A major source of emissions of hydrocarbon vapours occur during loading and offl... Read More about Innovative hydrocarbons recovery and utilization technology using reactor-separation membranes for off-gases emission during crude oil shuttle tanker transportation and natural gas processing..

Preparation, characterization and carrier gas transport characteristics of inorganic and organic membranes for application in lactic acid esterification with ethanol. (2018)
Thesis
OKON, E.P. 2018. Preparation, characterization and carrier gas transport characteristics of inorganic and organic membranes for application in lactic acid esterification with ethanol. Robert Gordon University, PhD thesis.

Ethyl lactate (EL) plays a major role as green solvent and also a replacement for most petrochemical solvents. The esterification process of lactic acid and ethanol to produce EL is an equilibrium-limiting reaction and the selective removal of one of... Read More about Preparation, characterization and carrier gas transport characteristics of inorganic and organic membranes for application in lactic acid esterification with ethanol..

Development and testing of inorganic membranes for hydrogen separation and purification in a catalytic membrane reactor. (2016)
Thesis
ALKALI, A. 2016. Development and testing of inorganic membranes for hydrogen separation and purification in a catalytic membrane reactor. Robert Gordon University, PhD thesis.

Palladium membranes have been identified as the membranes of choice in hydrogen separation and purification processes due to their infinite selectivity to hydrogen when defect-free. Despite their potentials in hydrogen processes, palladium membranes... Read More about Development and testing of inorganic membranes for hydrogen separation and purification in a catalytic membrane reactor..

Catalytic membrane reactor-separator for environmental applications. (2016)
Thesis
KAJAMA, M.N. 2016. Catalytic membrane reactor-separator for environmental applications. Robert Gordon University [online], PhD thesis. Available from: https://openair.rgu.ac.uk

Flow-through catalytic membrane reactors offer the potential for improved conversions at reduced operating temperature due to product separation and catalyst activity. An experimental work dealing with a forced flow-through membrane reactor is the su... Read More about Catalytic membrane reactor-separator for environmental applications..

Dry reforming of associated natural gas using catalytic membrane reactors. (2015)
Thesis
TEMIMI, A.R. 2015. Dry reforming of associated natural gas using catalytic membrane reactors. Robert Gordon University, PhD thesis. Hosted on OpenAIR [online]. Available from: https://doi.org/10.48526/rgu-wt-1987973

The mitigation and utilization of greenhouse gases, such as carbon dioxide (CO2), are among the most important challenges in the area of energy research. Dry reforming of propane (C3H8) (DRP), which uses both CO2 and C3H8 as reactants, is a potential... Read More about Dry reforming of associated natural gas using catalytic membrane reactors..

Preparation, characterization and testing of inorganic ceramic membranes. (2013)
Thesis
OGBUKE, I. 2013. Preparation, characterization and testing of inorganic ceramic membranes. Robert Gordon University, PhD thesis.

A novel approach to enhance the concentration of Carbon dioxide to economic scale using low efficient Inorganic Ceramic membranes has been proposed. This was achieved by the addition of second and third stage permeation trains to the existing low CO2... Read More about Preparation, characterization and testing of inorganic ceramic membranes..

Development and testing of thin composite palladium membrane for membrane fuel cell processors. (2010)
Thesis
CHEN, C.C. 2010. Development and testing of thin composite palladium membrane for membrane fuel cell processors. Robert Gordon University, PhD thesis.

The Palladium (Pd) based membranes have long been the focus of studies for the separation of hydrogen due to its high permeability and selectivity toward hydrogen. However, palladium is a precious metal and extremely expensive and its wider applicati... Read More about Development and testing of thin composite palladium membrane for membrane fuel cell processors..

Direct synthesis gas conversion to alcohols and hydrocarbons using a catalytic membrane reactor. (2009)
Thesis
UMOH, R.M. 2009. Direct synthesis gas conversion to alcohols and hydrocarbons using a catalytic membrane reactor. Robert Gordon University, PhD thesis.

In this work, inorganic membranes with highly dispersed metallic catalysts on macroporous titania-washcoated alumina supports were produced, characterized and tested in a catalytic membrane reactor. The reactor, operated as a contactor in the forced... Read More about Direct synthesis gas conversion to alcohols and hydrocarbons using a catalytic membrane reactor..

Composite inorganic membranes for hydrogen reaction, separation and purification. (2007)
Thesis
EL-ZAROUK, K.M.2007. Composite inorganic membranes for hydrogen reaction, separation and purification. Robert Gordon University, PhD thesis.

Silica-alumina composite membranes for hydrogen separation and high temperature chemical reactions were prepared using both conventional and modified dip-coating techniques. These were deposited on commercially available a.-alumina macroporous suppor... Read More about Composite inorganic membranes for hydrogen reaction, separation and purification..

Catalytic membrane reactors for synthesis gas production from natural gas via partial oxidation. (2004)
Thesis
OLSEN, S.K. 2004. Catalytic membrane reactors for synthesis gas production from natural gas via partial oxidation. Robert Gordon University, PhD thesis.

Natural gas obtained during the extraction of liquid hydrocarbons is often undesired due to the lack of infrastructure to transport the natural gas to an onshore location. As a result the natural gas is often flared causing economic waste and environ... Read More about Catalytic membrane reactors for synthesis gas production from natural gas via partial oxidation..