Now showing items 1-20 of 20

  • 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 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 ...
  • 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 ...
  • High performance valuation of CO2 gas separation ceramic membrane system. 

    Nwogu, Ngozi Claribelle; Kajama, Mohammed; Osueke, Godson; Gobina, Edward (Newswood Limited http://www.iaeng.org/publication/WCE2015/WCE2015_pp824-827.pdf, 2015-07-01)
    NWOGU, N.C., KAJAMA, M.N., OSUEKE, G. and GOBINA, E. 2015. High performance valuation of CO2 gas separation ceramic membrane system. Lecture notes in engineering and computer science: proceedings of the world congress on engineering 2015 (WCE 2015) [online], Vol II, 1-3 July 2015, London, UK. Hong Kong: Newswood Limited, pages 824-827. Available from: http://www.iaeng.org/publication/WCE2015/WCE2015_pp824-827.pdf
    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 ...
  • Hydrodynamic performance in mesoporous silica membrane for lactic acid and esterifiecation. 

    Okon, Edidiong; Shehu, Habiba; Kajama, Mohammed; Orimoloye, Adesola; Nwogu, Ngozi Claribelle; Orakwe, Ifeyinwa; Gobina, Edward (Newswood Limited http://www.iaeng.org/publication/WCE2015/WCE2015_pp781-784.pdf, 2015-07-01)
    OKON, E.P., SHEHU, H., KAJAMA, M.N, ORIMOLOYE, A.O., NWOGU, N.C., ORAKWE, I.R. and GOBINA, E. 2015. Hydrodynamic performance in mesoporous silica membrane for lactic acid and esterifiecation. Lecture notes in engineering and computer science: Proceedings of the world congress on engineering 2015 (WCE 2015) [online], Vol II, 1-3 July 2015, London, UK. Hong Kong: Newswood Limited, pages 781-784. Available from: http://www.iaeng.org/publication/WCE2015/WCE2015_pp781-784.pdf
    Ethyl Lactate has a lot of applications in different industries including food, pharmaceutical and agricultural processes. The esterification process of lactic acid and ethanol is a highly-equilibrium-controlled reaction. ...
  • 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 ...
  • An initial study of single gas permeation using a commercial alumina membrane. 

    Orakwe, Ifeyinwa; Nwogu, Ngozi Claribelle; Kajama, Mohammed; Shehu, Habiba; Okon, Edidiong; Gobina, Edward (Newswood Limited http://www.iaeng.org/publication/WCE2015/WCE2015_pp737-739.pdf, 2015-07-01)
    ORAKWE, I.R., NWOGU, N.C., KAJAMA, M., SHEHU, H., OKON, E. and GOBINA, E. 2015. An initial study of single gas permeation using a commercial alumina membrane. Lecture notes in engineering and computer science: Proceedings of the world congress on engineering 2015 (WCE 2015) [online], 1-3 July 2015, London, UK. Hong Kong: Newswood Limited, pages 737-739. Available from: http://www.iaeng.org/publication/WCE2015/WCE2015_pp737-739.pdf
    An initial study has been conducted using a commercially available alumina membrane. The study is based on single gas permeation method involving He, O2, CO2 and N2. The effect of trans membrane pressure drop, gas molecular ...
  • 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 ...
  • Propylene oxidation using Pt-alumina impregnated catalytic membrane reactor. 

    Kajama, Mohammed; Nwogu, Ngozi Claribelle; Gobina, Edward (Newswood Limited http://www.iaeng.org/publication/WCE2015/WCE2015_pp900-903.pdf, 2015-07-01)
    KAJAMA, M., NWOGU, N. and GOBINA, E. 2015. Propylene oxidation using Pt-alumina impregnated catalytic membrane reactor. Lecture notes in engineering and computer science: Proceedings of the world congress on engineering 2015 (WCE 2015) [online], Vol II, 1-3 July 2015, London, UK. Hong Kong: Newswood Limited, pages 900-903. Available from: http://www.iaeng.org/publication/WCE2015/WCE2015_pp900-903.pdf
    Pt/γ-Al2O3 membrane was prepared through the evaporative-crystallization deposition method for volatile organic compounds (VOCs) destruction. SEM-EDXA observation, BET measurement, permeability assessment and the catalytic ...
  • 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 ...
  • Structural characteristic and permeation of gases through a supported silica inorganic ceramic membrane. 

    Nwogu, Ngozi Claribelle; Kajama, Mohammed; Osueke, Godson; Gobina, Edward (Newswood Limited http://www.iaeng.org/publication/WCE2015/WCE2015_pp245-248.pdf, 2015-10-21)
    NWOGU, N.C., KAJAMA, M.N., OSUEKE, G. and GOBINA, E. 2015. Structural characteristic and permeation of gases through a supported silica inorganic ceramic membrane. Lecture notes in engineering and computer science: the Proceedings of the world congress on engineering 2015 (WCE 2015), 1-3 July 2015, London, UK. Hong Kong: Newswood Limited [online], pages 245-248. Available from: http://www.iaeng.org/publication/WCE2015/WCE2015_pp245-248.pdf
    The present paper describes the synthesis and hydrodynamic properties of a surface-modified ceramic membrane composed of a porous support which consists of gamma alumina and a titania wash-coat. Single gas permeation through ...
  • 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 ...
  • Validation of a novel approach for CO2/N2 gas separations by means of a hybrid ceramic membrane. 

    Nwogu, Ngozi Claribelle; Kajama, Mohammed; Gobina, Edward (Trans Tech Publications http://dx.doi.org/10.4028/www.scientific.net/AMR.1102.73, 2015-05-01)
    NWOGU, N.C, KAJAMA, M.N. and GOBINA, E. 2015. Validation of a novel approach for CO2/N2 gas separations by means of a hybrid ceramic membrane. 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 73-76. Available from: http://dx.doi.org/10.4028/www.scientific.net/AMR.1102.73.
    Global warming has been documented as one of the world?s foremost ecological concerns. Although it is difficult to totally end human related global warming, there is a possibility to alleviate these effects through a wide ...
  • VOC oxidation in excess of oxygen using flow-through catalytic membrane reactor. 

    Kajama, Mohammed; Shehu, Habiba; Okon, Edidiong; Orakwe, Ifeyinwa; Gobina, Edward (Elsevier https://dx.doi.org/10.1016/j.ijhydene.2016.04.164, 2016-06-17)
    KAJAMA, M.N., SHEHU, H., OKON, E., ORAKWE, I. and GOBINA, E. 2016. VOC oxidation in excess of oxygen using flow-through catalytic membrane reactor. International journal of hydrogen energy [online], 41(37), pages 16529-16534. Available from: https://dx.doi.org/10.1016/j.ijhydene.2016.04.164
    Platinum gamma-alumina (Pt/γ-Al2O3) impregnated membrane was prepared through the evaporative-crystallization deposition method for volatile organic compounds (VOCs) conversion to carbon dioxide (CO2) and water (H2O). The ...
  • Volatile organic compounds destruction by catalytic oxidation for environmental applications. 

    Kajama, Mohammed; Nwogu, Ngozi Claribelle; Gobina, Edward (WASET http://scholar.waset.org/1999.6/10001436, 2015-06-01)
    KAJAMA, M.N., NWOGU, N.C. and GOBINA, E. 2015. Volatile organic compounds destruction by catalytic oxidation for environmental applications. International journal of environmental, chemical, ecological, geological and geophysical engineering, 9(6), pages 618-621. World academy of science, engineering and technology international science index 102 [online]. Available from: http://scholar.waset.org/1999.6/10001436
    Pt/γ-Al2O3 membrane catalysts were prepared via an evaporative-crystallization deposition method. The obtained Pt/γ- Al2O3 catalyst activity was tested after characterization (SEM-EDAX observation, BET measurement, ...