All Outputs (24)

Microporous alumina–silica composite membrane with very low N2 permeability but high CO2 selectivity for direct air capture. (2022)
Presentation / Conference Contribution
GIWA, A., SHEHU, H., RAMALAN, M., ORAKWE, I., ABUNOMAH, O., OGUNLUDE, P., WILLIAMWEST, T., IGBAGARA, W., OGOUN, E., HASHIM, I., AISUENI, F. and GOBINA, E. 2022. Microporous alumina–silica composite membrane with very low N2 permeability but high CO2 selectivity for direct air capture. In Khan, A.A., Ciddi, M.L. and Unal, M. (eds.) Proceedings of the 2022 International conference on studies in engineering, science and technology (ICSEST 2022), 10-13 November 2022, Antalya, Turkey. Ames, IA: International Society for Technology, Education and Science (ISTES) [online], pages 182-210. Available from: https://www.istes.org/seeder/books/files/54c86815762a9dac0440e35d04a1e05c.pdf

This research involves technical approaches to capture carbon dioxide (CO2) from ambient air, involving a filter with a transport mechanism described based on experimental results. A silica inorganic composite membrane was prepared by using a silicon... Read More about Microporous alumina–silica composite membrane with very low N2 permeability but high CO2 selectivity for direct air capture..

Reconfigured metallic membrane technology for maintaining hydrogen concentration below 4% in fuel debris canisters. (2022)
Presentation / Conference Contribution
SHEHU, H., ORAKWE, I., ABUNOMAH, O., OGUNLUDE, P., RAMALAN, M., WILLIAMWEST, T., IGBAGARA, W., OGOUN, E., HASHIM, I., AISUENI, F. and GOBINA, E. 2022. Reconfigured metallic membrane technology for maintaning hydrogen concentration below 4% in fuel debris canisters. In Dincer, I., Ratlamwala, T.A.H. and Kamal, K. (eds.) Proceedings of the 13th International conference on hydrogen production (ICH2P 2022): hydrogen for a green future, 11-14 December 2022, [virtual event]. Hosted on ICH2P [online], pages 237-239. Available from: http://www.ich2p.org/wp-content/uploads/2023/01/Conference-Proceedings.pdf

The use of hydrogen in the energy sector has been in the headlines in recent times, due to its promising future as a replacement for fossil fuels; it can be produced sustainably from a wide variety of feedstocks, including traditional hydrocarbons de... Read More about Reconfigured metallic membrane technology for maintaining hydrogen concentration below 4% in fuel debris canisters..

Dense metallic membranes for high-density hydrogen production from different feedstocks for PEM fuel cells power generation. (2022)
Presentation / Conference Contribution
SHEHU, H., ORAKWE, I., ABUNOMAH, O., OGUNLUDE, P., RAMALAN, M., WILLIAMWEST, T., IGBAGARA, W., OGOUN, E., HASHIM, I., AISUENI, F. and GOBINA, E. 2022. Dense metallic membranes for high-density hydrogen production from different feedstocks for PEM fuel cells power generation. In Dincer, I., Ratlamwala, T.A.H. and Kamal, K. (eds.) Proceedings of the 13th International conference on hydrogen production (ICH2P 2022): hydrogen for a green future, 11-14 December 2022, [virtual event]. Hosted on ICH2P [online], pages 203-205. Available from: http://www.ich2p.org/wp-content/uploads/2023/01/Conference-Proceedings.pdf

The International Electrotechnical Commission (IEC), through Technical Committee 105 Fuel Cell Technologies, prepares international standards regarding fuel cell technologies for all fuel types and various associated applications, such as: stationary... Read More about Dense metallic membranes for high-density hydrogen production from different feedstocks for PEM fuel cells power generation..

Development of dense membranes for high-density hydrogen production from ammonia catalytic decomposition (cracking) for PEM fuel cells power in long-haul passenger aircraft transportation. (2022)
Presentation / Conference Contribution
SHEHU, H., ORAKWE, I., ABUNOMAH, O., OGUNLUDE, P., OGOUN, E., RAMALAN, M., AISUENI, F., OKO, E., IBHADON, A., GAD-BRIGGS, A., GIANNOPOULOS, I., GIWA, A. and GOBINA, E. 2022. Development of dense membranes for high-density hydrogen production from ammonia catalytic decomposition (cracking) for PEM fuel cells power in long-haul passenger aircraft transportation. Techconnect briefs 2022: papers from 2022 TechConnect world innovation conference and expo, 13-15 June 2022, Washington, USA. Danville: TechConnect [online], pages 134-137. Available from: https://briefs.techconnect.org/wp-content/volumes/TCB2022/pdf/310.pdf

Aviation is a major greenhouse gas contributor responsible for around 3.2% of global CO2 emissions to the atmosphere. That corresponds to over than 1 billion metric tons of carbon (A metric ton is slightly smaller than the American imperial ton—but t... Read More about Development of dense membranes for high-density hydrogen production from ammonia catalytic decomposition (cracking) for PEM fuel cells power in long-haul passenger aircraft transportation..

Comparison of ceramic α-alumina and modified γ-alumina membranes for H2 separation. (2021)
Journal Article
ORAKWE, I., ALKALI, A., SHEHU, H. and GOBINA, E. 2021. Comparison of ceramic α-alumina and modified γ-alumina membranes for H2 separation. Membrane technology [online], 2021(11), pages 8-11. Available from: https://doi.org/10.1016/S0958-2118(21)00175-0

This article provides details of a study that investigates hydrogen (H2) separation, purification and transport behaviour of a ceramic α-alumina membrane and compares it with that of a γ-alumina membrane modified with Boehmite sol.

Predicting multicomponent gas transport in hybrid inorganic membranes. (2021)
Presentation / Conference Contribution
GOBINA, E., SHEHU, H. and ORAKWE, I. 2021. Predicting multicomponent gas transport in hybrid inorganic membranes. In Proceedings of the ICANM 2021: 8th International conference and exhibition on advanced and nanomaterials 2021 (ICANM 2021), 9-11 August 2021, [virtual conference]. Ontario: ICANM, pages 47-56.

A repeated dip-coating technique has been used to prepare novel inorganic multilayered membranes. The membranes have been characterizated by Scanning Electron Microscopy (SEM) and nitrogen adsorption (ASAP 2010) respectively. The three-parameter mode... Read More about Predicting multicomponent gas transport in hybrid inorganic membranes..

A comparative evaluation of the hydrogen separation, purification and transport behavior of α-alumina membrane and γ-alumina membranes modified with ALOOH sol. (2021)
Presentation / Conference Contribution
SHEHU, H., ORAKWE, I. and GOBINA, E. 2021. A comparative evaluation of the hydrogen separation, purification and transport behavior of α-alumina membrane and γ-alumina membranes modified with AlOOH sol. Presented at 8th International conference and exhibition on advanced and nanomaterials 2021 (ICANM 2021), 9-11 August 2021, [virtual conference].

The main purpose of this work is to investigate the hydrogen permeation behavior of a commercial ceramic alumina membrane and compare same with that of a γ-alumina membrane graded with an AlOOH sol using the dip coating method. The permeance of hydro... Read More about A comparative evaluation of the hydrogen separation, purification and transport behavior of α-alumina membrane and γ-alumina membranes modified with ALOOH sol..

Transport in catalytically active porous membrane application in seawater deoxygenation for pressure maintenance. (2021)
Presentation / Conference Contribution
ORAKWE, I., SHEHU, H. and GOBINA, E. 2021. Transport in catalytically active porous membrane application in seawater deoxygenation for pressure maintenance. Presented at 8th International conference and exhibition on advanced and nanomaterials 2021 (ICANM 2021), 9-11 August 2021, [virtual conference].

In this study, inorganic tubular ceramic membranes with highly-dispersed catalytic metal: palladium and platinum were produced on both meso and macro-porous membranes. The membranes were characterised by energy dispersive x-rays (EDAX), scanning elec... Read More about Transport in catalytically active porous membrane application in seawater deoxygenation for pressure maintenance..

Thermo-neutral methane reforming using a flow-through porous Rh-impregnated membrane catalyst reactor for carbon capture and utilisation. (2021)
Presentation / Conference Contribution
SHEHU, H., ORAKWE, I. and GOBINA, E. 2021. Thermo-neutral methane reforming using a flow-through porous Rh-impregnated membrane catalyst reactor for carbon capture and utilisation. Presented at 8th International conference and exhibition on advanced and nanomaterials 2021 (ICANM 2021), 9-11 August 2021, [virtual conference]

A thermo-neutral process has been developed and tested for the carbon dioxide (CO2) reforming of methane (CH4) with oxygen (O2) and steam (H2O). A catalytic membrane reactor in which the catalytic material is dispersed within the straight through por... Read More about Thermo-neutral methane reforming using a flow-through porous Rh-impregnated membrane catalyst reactor for carbon capture and utilisation..

Comparison of hydrogen transport in dense and porous ceramic membrane systems. (2021)
Presentation / Conference Contribution
GOBINA, E., SHEHU, H., ORAKWE, I. and ALKALI, A. 2021. Comparison of hydrogen transport in dense and porous ceramic membrane systems. Presented at 8th International conference and exhibition on advanced and nanomaterials 2021 (ICANM 2021), 9-11 August 2021, [virtual conference].

In this study, hydrogen permeation behaviour was investigated for both dense and porous ceramic composite membranes. Selected porous supports were tested and highly active metallic species was impregnated into the porous structure using the repeated... Read More about Comparison of hydrogen transport in dense and porous ceramic membrane systems..

An initial study of biogas upgrading to bio-methane with carbon dioxide capture using ceramic membranes. (2020)
Journal Article
OGUNLUDE, P., ABUNUMAH, O., ORAKWE, I., SHEHU, H., MUHAMMAD-SUKKI, F. and GOBINA, E. 2022. An initial study of biogas upgrading to bio-methane with carbon dioxide capture using ceramic membranes. Catalysis today [online], 388-389, pages 87-91. Available from: https://doi.org/10.1016/j.cattod.2020.11.006

Supplement to the depleting energy resources and the stringent environmental laws regarding the atmospheric emissions of greenhouse gases, the development of clean and renewable sources of energy has been a great issue. Worldwide, energy usage is ste... Read More about An initial study of biogas upgrading to bio-methane with carbon dioxide capture using ceramic membranes..

Upgrading biogas to biomethane by use of nano-structured ceramic membranes. (2020)
Journal Article
OGUNLUDE, P., ABUNUMAH, O., ORAKWE, I., SHEHU, H., MUHAMMAD-SUKKI, F. and GOBINA, E. 2020. Upgrading biogas to biomethane by use of nano-structured ceramic membranes. Detritus [online], 12, pages 73-77. Available from: https://doi.org/10.31025/2611-4135/2020.13996

In order to meet the demands of growing economies while considering environmental implications, the use of clean and renewable sources of energy has increasingly become of interest. Biogas utilisation is a means by which these rising needs can be met... Read More about Upgrading biogas to biomethane by use of nano-structured ceramic membranes..

Comparative evaluation of the effect of pore size and temperature on gas transport in nano-structured ceramic membranes for biogas upgrading. (2019)
Presentation / Conference Contribution
OGUNLUDE, P., ABUNUMAH, O., ORAKWE, I., SHEHU, H., MUHAMMAD-SUKKI, F. and GOBINA, E. 2019. Comparative evaluation of the effect of pore size and temperature on gas transport in nano-structured ceramic membranes for biogas upgrading. WEENTECH proceedings in energy [online], 5(1): proceedings of the 4th International conference on energy, environment and economics (ICEEE2019), 20-22 August 2019, Edinburgh, UK, pages 195-205. Available from: https://doi.org/10.32438/WPE.8319

As a result of rising economies and environmental constraints, the demand for clean and renewable sources of energy is fast increasing. Biogas is a renewable form of energy that fits all expectations in terms of delivery, cost, and greenhouse emissio... Read More about Comparative evaluation of the effect of pore size and temperature on gas transport in nano-structured ceramic membranes for biogas upgrading..

Utilization of CO2 for syngas production by CH4 partial oxidation using a catalytic membrane reactor. (2019)
Journal Article
SHEHU, H., GOBINA, E. and ORAKWE, I. 2019. Utilization of CO2 for syngas production by CH4 partial oxidation using a catalytic membrane reactor. International journal of hydrogen energy [online], 44(20), pages 9896-9905. Available from: https://doi.org/10.1016/j.ijhydene.2019.02.102

In this research, a synthetic flue gas mixture with added methane was used as the feed gas in the process of dry reforming with partial oxidation of methane using a laboratory scale catalytic membrane reactor to produce hydrogen and carbon monoxide t... Read More about Utilization of CO2 for syngas production by CH4 partial oxidation using a catalytic membrane reactor..

Preparation and characterization of palladium ceramic alumina membrane for hydrogen permeation. (2019)
Journal Article
ORAKWE, I., SHEHU, H. and GOBINA, E. 2019. Preparation and characterization of palladium ceramic alumina membrane for hydrogen permeation. International journal of hydrogen energy [online], 44(20), pages 9914-9921. Available from: https://doi.org/10.1016/j.ijhydene.2019.01.033

In this study, a tubular palladium membrane has been prepared by an electroless plating method using palladium II chloride as a precursor with the intent of not having a completely dense film since its application does not require high hydrogen selec... Read More about Preparation and characterization of palladium ceramic alumina membrane for hydrogen permeation..

Design and evaluation of gas transport through a zeolite membrane on an alumina support. (2018)
Book Chapter
SHEHU, H., OKON, E., ORAKWE, I. and GOBINA, E. 2018. Design and evaluation of gas transport through a zeolite membrane on an alumina support. In Rashed, M.N. and Palanisamy, P.N. (eds.) Zeolites and their applications. London: IntechOpen [online], chapter 3. Available from: https://doi.org/10.5772/intechopen.75545

This chapter details the synthesis and applications of zeolite membranes (gas separation and zeolite membrane reactors). Gas separation is still not carried out at industrial level for zeolite membranes. Related areas, such as the possibility of inco... Read More about Design and evaluation of gas transport through a zeolite membrane on an alumina support..

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..

Novel esterification reaction from biomass product by coupled acetate membrane and catalysts for ethyl lactate separation. (2017)
Journal Article
OKON, E., SHEHU, H. and GOBINA, E. 2018. Novel esterification reaction from biomass product by coupled acetate membrane and catalysts for ethyl lactate separation. International journal of hydrogen energy [online], 43(15), pages 7703-7712. Available from: https://doi.org/10.1016/j.ijhydene.2017.07.230

This study presents the effect of combined membrane separation and heterogeneous catalysts for the production of ethyl lactate solvent. The enhanced process is a flat sheet cellulose acetate membrane and cation-exchange resin catalysts. A methodology... Read More about Novel esterification reaction from biomass product by coupled acetate membrane and catalysts for ethyl lactate separation..

Novel zeolite-polyurethane membrane for environmental applications and gas separations. (2017)
Journal Article
SHEHU, H., OKON, E. and GOBINA, E. 2017. Novel zeolite-polyurethane membrane for environmental applications and gas separations. Materiaux and techniques [online], 105(2), article number 205. Available from: https://doi.org/10.1051/mattech/2017031

This research work investigates the effect of polyurethane polymer on the separation of CO2, CH4 and C3H8 through a zeolite/polyurethane mixed matrix membrane. A methodology based on the modification of porous ceramic inorganic support with the aim t... Read More about Novel zeolite-polyurethane membrane for environmental applications and gas separations..

Esterification of lactic acid and ethanol using heterogenous catalysts for the production of a bio-based chemical. (2017)
Presentation / Conference Contribution
EDIDIONG, O., HABIBA, S. and GOBINA, E. 2017. Esterification of lactic acid and ethanol using heterogenous catalysts for the production of a bio-based chemical. In Ao, S.I., Gelman, L., Hukins, D.W.L., Hunter, A. and Korsunsky, A.M. (eds.) Proceedings of the 2017 International multiconference of engineers and computer scientists (IMECS 2017), 15-17 March 2017, Hong Kong, China. Lecture notes in engineering and computer science, 2228. Hong Kong: Newswood Ltd [online], pages 811-817. Available from: http://www.iaeng.org/publication/IMECS2017/IMECS2017_pp811-817.pdf

In this work, the batch process esterification reaction was carried out at 80 oC using different types of heterogeneous catalysts. The heterogeneous resin catalysts used for the analysis were amberlyst 15, amberlyst 36, amberlyst 16 and dowex 50W8x.... Read More about Esterification of lactic acid and ethanol using heterogenous catalysts for the production of a bio-based chemical..