Now showing items 1-20 of 25

  • Catalytic membrane reactors for synthesis gas production from natural gas via partial oxidation. 

    Olsen, Susanne Kelly (Robert Gordon University School of Engineering, 2004-05)
    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 ...
  • Characterisation of inorganic composite ceramic membrane for lactic acid esterification processes. 

    Okon, Edidiong; Shehu, Habiba; Gobina, Edward (Trans Tech Publications http://dx.doi.org/10.4028/www.scientific.net/AMR.1102.99, 2015-05-01)
    OKON, E., SHEHU, H. and GOBINA, E. 2015. Characterisation of inorganic composite ceramic membrane for lactic acid esterification processes. Advanced materials research, 1102, Coddet, C. (ed.) Selected papers from the 2015 international conference on metal, ceramic and composite materials (ICMCCM-2015), 24-25 January 2015, Shanghai, China. Pfaffikon, Switzerland: Trans Tech Publications [online], pages 99-102. Available from: http://dx.doi.org/10.4028/www.scientific.net/AMR.1102.99.
    The use of inorganic composite membranes in chemical industries has received a lot of attention more recently due to a number of exceptional advantages including thermal stability and robustness. Inorganic membranes can ...
  • Composite inorganic membranes for hydrogen reaction, separation and purification. 

    El-Zarouk, Khaled Mohamed (Robert Gordon University School of Engineering, 2007-01)
    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 ...
  • Experimental study of gas flux characteristics in a CO2 selective silica based modified membrane. 

    Nwogu, Ngozi Claribelle; Kajama, Mohammed; Gobina, Edward (IAEME http://www.iaeme.com/MasterAdmin/UploadFolder/IJARET_05_08_001/IJARET_05_08_001.pdf, 2014-08-20)
    NWOGU, N.C., KAJAMA, M.N. and GOBINA, E. 2014. Experimental study of gas flux characteristics in a CO2 selective silica based modified membrane. International journal of advanced research in engineering and technology (IJARET) [online], 5(8), pages 1-9. Available from: http://www.iaeme.com/MasterAdmin/Journal_uploads/IJARET/VOLUME_5_ISSUE_8/IJARET_05_08_001.pdf
    The purpose of membrane gas separation for CO2 capture from flue gas process is to reduce greenhouse emissions as well as associated environmental challenges globally. This study looks at gas separation in a single gas ...
  • Gas permeation behaviour of single and mixed gas components using as asymmetric ceramic membrane. 

    Nwogu, Ngozi Claribelle; Gobina, Edward (World Academy of Science, Engineering and Technology (WASET) http://scholar.waset.org/1999.2/10001725, 2015)
    NWOGU, N. and GOBINA, E., 2015. Gas permeation behaviour of single and mixed gas components using an asymmetric ceramic membrane. Proceedings of the World Academy of Science, Engineering and Technology, Vol 9 (6), pp. 677-681.
    A dip-coating process has been used to form an asymmetric silica membrane with improved membrane performance and reproducibility. First, we deposited repeatedly silica on top of a commercial alumina membrane support to ...
  • Gas permeation study using ceramic membranes. 

    Kajama, Mohammed; Nwogu, Ngozi Claribelle; Gobina, Edward (Canadian Centre of Science and Education http://dx.doi.org/10.5539/eer.v4n3p43, 2014-07-11)
    KAJAMA, M.N., NWOGU, N.C. and GOBINA, E., 2014. Gas permeation study using porous ceramic membranes. Energy and Environment Research, Vol 4 (3), pp. 43-49.
    A 6000 nm ceramic membrane was repaired with boehmite solution (ALOOH) through the repeat dip-coating technique. The permeance of hydrogen (H2) and carbon dioxide (CO2) were obtained through the membrane in relation to ...
  • Gas transport and characterization of inorganic ceramic membrane for lactic acid esterification. 

    Edidiong, Okon; Habiba, Shehu; Gobina, Edward (International Association of Engineers., 2014-10)
    EDIDIONG, O., HABIBA, S. and GOBINA, E., 2014. Gas transport and characterization of inorganic ceramic membrane for lactic acid esterification. In: S.I. AO, C. DOUGLAS, W.S. GRUNDFEST and J. BURGSTONE, EDS. Proceedings of the World Congress on Engineering and Computer Science 2014. 22-24 October, 2014. San Francisco: International Association of Engineers. Volume II, pp. 590-594. ISBN 9789881925374.
    Ethyl lactate is an important organic ester, which is biodegradable in nature and widely used as food additive, perfumery, flavor chemicals and solvent. Inorganic porous ceramic membrane has shown a lot of advantages in ...
  • High molecular permeance dual-layer ceramic membrane for capturing CO2 from flue gas stream. 

    Nwogu, Ngozi Claribelle; Kajama, Mohammed; Orakwe, Ifeyinwa; Gobina, Edward (Scientific Research Publishing https://dx.doi.org/10.4236/epe.2015.79040, 2015-08-25)
    NWOGU, N.C., KAJAMA, M.A., ORAKWE, I. and GOBINA, E. 2015. High molecular permeance dual-layer ceramic membrane for capturing CO2 from flue gas stream. Energy and power engineering [online], 7(9), pages 418-425. Available from: https://dx.doi.org/10.4236/epe.2015.79040
    With the objective to create technologically advanced materials to be scientifically applicable, dual-layer silica alumina membranes were molecularly fabricated by continuous surface coating silica layers containing hybrid ...
  • Hydrogen separation using inorganic membranes. 

    Kajama, Mohammed; Nwogu, Ngozi Claribelle; Gobina, Edward (Trans Tech Publications http://dx.doi.org/10.4028/www.scientific.net/AMR.1102.91, 2015-05-01)
    KAJAMA, M.N., NWOGU, N.C. and GOBINA, E. 2015. Hydrogen separation using inorganic membranes. Advanced materials research, 1102: Coddet, C. (ed.) Selected papers from the 2015 international conference on metal, ceramic and composite materials (ICMCCM-2015), 24-25 January 2015, Shanghai, China. Pfaffikon, Switzerland: Trans Tech Publications [online], pages 91-94. Available from: http://dx.doi.org/10.4028/www.scientific.net/AMR.1102.91.
    Gas permeation of hydrogen (H2) and nitrogen (N2) were obtained from 30 and 6000 nm pore diameter tubular commercial alumina ceramic membranes at 0.05 to 1.00 bar and 298 K. Flow rates of up to 3.279 and 2.296 l/min were ...
  • Hydrogen separation using pt-alumina impregnated membrane. 

    Kajama, Mohammed; Nwogu, Ngozi Claribelle; Okon, Edidiong; Shehu, Habiba; Orakwe, Ifeyinwa; Gobina, Edward (Scientific Research Publishing https://dx.doi.org/10.4236/epe.2015.79039, 2015-08-25)
    KAJAMA, M.N., NWOGU, N.C., OKON, E.O., SHEHU, H., ORAKWE, I. and GOBINA, E. 2015. Hydrogen separation using pt-alumina impregnated membrane. Energy and power engineering [online], 7, pages 412-417. Available from: https://dx.doi.org/10.4236/epe.2015.79039
    A tubular commercial mesoporous support was used to prepare a Pt impregnated membrane using the reservoir method and tested for moderate temperature (300 C) gas transport of hydrogen (H2), helium (He) and nitrogen (N2) gas ...
  • Hydrogen separation using silica-based composite membranes. 

    Kajama, Mohammed; Nwogu, Ngozi Claribelle; Gobina, Edward (Trans Tech Publications http://dx.doi.org/10.4028/www.scientific.net/AMR.1051.107, 2014-10-01)
    KAJAMA, M.N., NWOGU, N.C. and GOBINA, E. 2014. Hydrogen separation using silica-based composite membranes. Advanced materials research, 1051: Bhatnagar, A.K. (ed.) Selected papers from the 2014 international conference on green materials and environmental engineering (GMEE 2014), 21-22 September 2014, Hong Kong. Pfaffikon, Switzerland: Trans Tech Publications [online], pages 107-111. Available from: http://dx.doi.org/10.4028/www.scientific.net/AMR.1051.107
    Silica sol-gel membranes have been developed for moderate temperature (300 °C) separation of hydrogen (H2) from nitrogen (N2), methane (CH4) and argon (Ar) gas molecules. Tubular ceramic support with 15 nm nominal pore ...
  • Hydrogen transport through dense and porous membranes for fuel cell applications. 

    Nwogu, Ngozi Claribelle; Alkali, A.; Gobina, Edward (Atlantis Press http://dx.doi.org/10.2991/itms-15.2015.40, 2015-03-01)
    NWOGU, N.C., ALKALI, A. and GOBINA, E. 2015. Hydrogen transport through dense and porous membranes for fuel cell applications. Advances in computer science research, 34, Proceedings of the 1st international conference on industrial technology and management science (ITMS 2015), 27-28 March 2015, Tianjin, China. Amsterdam: Atlantis press [online], pages 157-160. Available from: http://dx.doi.org/10.2991/itms-15.2015.40
    In this work the design of a nano structured ceramic membrane is carried out for fuel cell applications. However the innovation is that a membrane porous network is modified through its immersion in silica based solution ...
  • An initial investigation of a nano-composite silica ceramic membrane for hydrogen gas separation and purification. 

    Nwogu, Ngozi Claribelle; Anyanwu, Emmanuel Enyioma; Gobina, Edward (Elsevier http://dx.doi.org/10.1016/j.ijhydene.2015.11.162, 2016-01-27)
    NWOGU, N.C., ANYANWU, E.E. and GOBINA, E. 2016. An initial investigation of a nano-composite silica ceramic membrane for hydrogen gas separation and purification. International journal of hydrogen energy [online], 41(19), pages 8228-8235. Available from: http://dx.doi.org/10.1016/j.ijhydene.2015.11.162
    The effects of trans-membrane pressure difference on hydrogen recovery are investigated on a preliminary basis. The membrane has been developed for high temperature hydrogen separation from CH4, N2, and Ar gas molecules. ...
  • Integration of gas transport through a composite catalytic inorganic ceramic membrane for environmental gas separation processes. 

    Nwogu, Ngozi Claribelle; Okon, Edidiong; Gobina, Edward (MC College, Department of Mathematics, Scientific Research Forum http://ijset.com/ijset/publication/v3s9/IJSET_2014_914.pdf, 2014-09-01)
    NWOGU, N., OKON, E. and GOBINA, E. 2014. Integration of gas transport through a composite catalytic inorganic ceramic membrane for environmental gas separation processes. International journal of scientific engineering and technology [online], 3(9) pages 1184-1188. Available from: http://ijset.com/ijset/publication/v3s9/IJSET_2014_914.pdf
    This work presents the transport behaviour of carrier gases with inorganic ceramic membrane used for environmental gas separations at 289K and 0.01-1 bar. The gases tested include: Helium (He), Nitrogen (N2), Carbon dioxide ...
  • Performance evaluation of an inventive CO2 gas separation inorganic ceramic membrane. 

    Nwogu, Ngozi Claribelle; Kajama, Mohammed; Gobina, Edward (World Academy of Science, Engineering and Technology http://scholar.waset.org/1999.2/10001660, 2015-06-30)
    NWOGU, N., KAJAMA, M. and GOBINA, E., 2015. Performance evaluation of an inventive CO2 gas separation inorganic ceramic membrane. World Academy of Science, Engineering and Technology, International Science Index 102: International journal of chemical, molecular, nuclear, materials and metallurgical engineering [online], 9(6), pp. 662-665. Available from: http://scholar.waset.org/1999.2/10001660
    Atmospheric carbon dioxide emissions are considered as the greatest environmental challenge the world is facing today. The tasks to control the emissions include the recovery of CO2 from flue gas. This concern has been ...
  • Preparation and characterization of inorganic membranes for hydrocarbon separation from N2 for environmental applications. 

    Kajama, Mohammed; Shehu, Habiba; Okon, Edidiong; Gobina, Edward (Canadian Center of Science and Education (CCSE) http://dx.doi.org/10.5539/eer.v5n1p110, 2015-05-20)
    KAJAMA, M.N., SHEHU, H., OKON, E. and GOBINA, E. 2015. Preparation and characterization of inorganic membranes for hydrocarbon separation from N2 for environmental applications. Energy and environment research [online], 5(1), pages 110-120. Available from: http://dx.doi.org/10.5539/eer.v5n1p110
    This paper reports the preparation and characterization of gas transport using tubular alumina support and silica membrane for propylene (C3H6) and nitrogen (N2) separation. Dip-coating technique was employed to deposit ...
  • Preparation and characterization of inorganic membranes for hydrogen separation. 

    Kajama, Mohammed; Nwogu, Ngozi Claribelle; Gobina, Edward (Elsevier https://dx.doi.org/10.1016/j.ijhydene.2015.11.179, 2016-02-06)
    KAJAMA, M.N. NWOGU, N.C. and GOBINA, E. 2016. Preparation and characterization of inorganic membranes for hydrogen separation. International journal of hydrogen energy [online], 41(19), pages 8221-8227. Available from: https://dx.doi.org/10.1016/j.ijhydene.2015.11.179
    A tubular commercially available alumina support was coated using the dip coating technique. The objective is to prepare silica and Pt impregnated membranes. Scanning electron microscopy (SEM), energy diffraction X-ray ...
  • Purification of gases using nanoporous inorganic membranes. 

    Kajama, Mohammed; Shehu, Habiba; Gobina, Edward (MC College, Department of Mathematics, Scientific Research Forum http://ijset.com/ijset/publication/v3s9/IJSET_2014_908.pdf, 2014-09-01)
    KAJAMA, M.N., SHEHU, H. and GOBINA, E. Purification of gases using nanoporous inorganic membranes. International journal of scientific engineering and technology [online], 3(9), pages 1156-1159. Available from: http://ijset.com/ijset/publication/v3s9/IJSET_2014_908.pdf
    The application of membranes has gained acceptance in the chemical and process industries for separation and purification for over three decades and is currently being practiced for natural gas processing, waste water ...
  • Resin characterization and tubular membrane transport with single gases for ethyl lactate separations for industrial purposes. 

    Okon, Edidiong; Shehu, Habiba; Nwogu, Ngozi Claribelle; Kajama, Mohammed; Orakwe, Ifeyinwa; Gobina, Edward (Scientific Research Publishing https://dx.doi.org/10.4236/msce.2015.39002, 2015-09-08)
    OKON, E., SHEHU, H., NWOGU, N., KAJAMA, M., ORAKWE, I. and GOBINA, E. 2015. Resin characterization and tubular membrane transport with single gases for ethyl lactate separations for industrial purposes. Journal of materials science and chemical engineering [online], 3, pages 8-14. Available from: https://dx.doi.org/10.4236/msce.2015.39002
    The dip-coating method has been used to prepare silica membrane. The gas flow rate relationship with the gauge pressure showed a Knudsen type of mechanism of gas transport. The flux was found to decrease with respect to ...
  • A study of gas diffusion characteristics on a micro porous composite silica ceramic membrane. 

    Nwogu, Ngozi Claribelle; Kajama, Mohammed; Gobina, Edward (Elsevier http://dx.doi.org/10.1016/j.compstruct.2015.07.121, 2015-12-15)
    NWOGU, N. C., KAJAMA, M. and GOBINA, E., 2015. A study of gas diffusion characteristics on a micro porous composite silica ceramic membrane. Composite Structures, Vol. 134, pp. 1044-1050.
    The purpose of this study is to investigate gas permeation behaviour of five gases (CO2, He, H2, N2 and Ar) across two silica modified ceramic membranes, Membrane Y and Membrane Z. An examination of the variations in their ...