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SESSION 4A
CHAIRMAN: Dr. Sugeng Triwahyono

Venue: Theatre 1










1400




The quality analysis of polycrystalline diamond coated Si3N4 using Raman Spectra: the effect of chamber pressure and microwave power (RO39)







A. Purniawan, E. Hamzah, M. R. M. Toff

1415




Ice point blackbody cavity for checking the performance of an infrared radiation thermometer operating near 0 °C (RO40)







Irene Safinaz Hassan, Hafidzah Othman , Md. Nor Md. Chik

1430




Measurement and Calibration of Frost Point and Dew Point Meter (RO41)







Faridah Hussain, Hafidzah Othman, Md Nor Md Chik




SESSION 4B
CHAIRMAN: Assoc. Prof. Dr. Abdul Rahim Yacob

Venue: Meeting room (1st floor)










1400




Identification and Characterization of A Marine Pseudoalteromonas Sp from

Fish Mucus (RO42)









Wan Siti Nur Atirah Wan Mohd Azemin, Mohd Shahir Shamsir Omar, Azmi Rani

1430




Biolistic-Transformation of Impatiens Balsamina Using hph Gene for Hygromycin Resistant (RO43)







Aishah Mohd Taha, Alina Wagiran, Zaidah Rahmat and Fahrul Zaman Huyop

1415




Preparation and Conductivity Studies on Poly(Methyl Metacrylate)-Epoxidised Natural Rubber Blend Solid Electrolytes (RO44)







Madzlan Aziz and Famiza Abdul Latif



SESSION 4C
CHAIRMAN: Prof. Dr. Bidin Yatim

Venue: Seminar room 1 (1st floor)










1400




Branch and Bound Approach for Solving Two-Stage Mixed-Integer Stochastic Programming Problems (IO134)







Jafaruddin Harahap and Herman Mawengkang

1415




Revisiting Missingness Mechanism (IO135)







Ismail Mohamad

1430




Characteristics of Deterministic Equivalent Model for Multi-Stage Mixed Integer Stochastic Programs (IO136)







Irvan & Herman Mawengkang




SESSION 4D
CHAIRMAN: Assoc. Prof. Dr. Robiah Adnan

Venue: Seminar room 2 (1st floor)










1400




Comparing the Accuracy of Density Forecast from Competing Models: An Application to KLCI Returns (IO137)







Abu Hassan Shaari Mohd Nor, A. Shamiri & Fauziah Maarof

1415




Development of Small Area Estimation Research in Indonesia (IO138)







Khairil A. Notodiputro & Anang Kurnia

1430




The Performance of MM-Estimators on Simple Mediation Analysis (IO139)







Anwar Fitrianto & Habsah Midi




SESSION 4E
CHAIRMAN: Assoc. Prof. Dr. Yudariah Mohamad Yusof

Venue: Seminar room 3 (1st floor)










1400




Computers-Assisted Student Learning in Engineering Mathematics (IO82)







Maya Pundoor & Ramadas Narayanan

1415




Dynamic Geometry: Theory and Practice (IO142)







Robert L. Pour

1430




Computer Based Assessment in Engineering Mathematics: A Case Study (IO155)







Maya Pundoor & Ramadas Narayanan




SESSION 4F
CHAIRMAN: Prof. Dr. Kaname Amano

Venue: Seminar room 4 (3rd floor)










1400




Biomechanical Analyses of Two Lumbar Vertebrae Implanted with an Artificial Disc (IVD) (IO143)







A. K. Mohammed Rafiq & W.H. Wan Mohd Musyris

1415




Biological Classifiers for Problem Solving (IO144)







Siti Maryam Shamsuddin

1430




Newton-Kaczmarz Methods for Reconstruction of Electrical Impedance Tomography with Multiple Measurement Data: A Numerical Result (IO145)







Agah D. Garnadi



SESSION 4G
CHAIRMAN: Assoc. Prof. Dr. Nor Haniza Sarmin

Venue: Seminar room 5 (3rd floor)










1400




Students’ Approach on Delivering A Simple and Alternative Euclidean Division Algorithm (IO146)







Mohd Sulhi, Azniah, Noraishiyah, Tuan Salwani & Siti Mistima

1415




Cardinality of the Sets of Solution to Congruence Equation Associated with a Seventh Degree Form (IO147)







Siti Hasana Sapar & K.A Mohd Atan

1430




On Higher Order Analogues of the RSA Cryptosystem (IO148)







Mohamad Rushdan Md. Said




SESSION 4H
CHAIRMAN: Assoc. Prof. Dr. Roslinda Mohd Nazar

Venue: Seminar room 6 (3rd floor)










1400




Effect of Control on the Onset of Marangoni-Bénard Convection with Uniform Internal Heat Generation (IO149)







Norfifah Bachok, Norihan Md Ariffin & Fadzillah Md. Ali

1415




Maximum Density Effects on G-Jitter Induced Free Convection between Vertical Plates Heated and Asymmetrically (IO151)







Sharidan Shafie, Norsarahaida Amin & Ioan Pop

1430




An Efficient Parallel Numerical Integration Algorithm for Multilayer Layer Raster CNN for Simulation (IO140)







R. Ponalagusamy & S. Senthilkumar

1445




Sliding Mode Tracking Controller For Hydraulic Robot Manipulators With Numerical Analysis (IO141)







Syarifah Zyurina Nordin, Haszuraidah Ishak & J.H.S Osman




SESSION 4I
CHAIRMAN: Prof. Dr. Dai Okano

Venue: Seminar room 7 (3rd floor)










1400




Analysis of a Dengue Disease Transmission Model without Immunity (IO152)







Yusuf Yaacob

1415




Time-Dependent Generation Of Fluid Motion Along A Channel By A Traveling Magnetic Field (IO153)







Mohd Noor Saad

1430




Numerical Solutions of The One-Dimensional Shallow Water Equations (IO154)







Salemah Ismail, Zainal Abd. Aziz, Mohd Nor Mohamad & Nazeeruddin Yaacob




KEYNOTE LECTURES SESSION
CHAIRMAN: Assoc. Prof. Dr. Zainal Abd. Aziz

Venue: Theatre 1










1500




Revenue Management: Applying Optimization Concept in Business

(Keynote lecture 5)







Prof. Dr. Bahrom Sanugi (Universiti Teknologi Malaysia)

1530




Numerical Conformal Mapping by the charge simulation method (Keynote lecture 6)







Prof. Dr. Kaname Amano (Ehime University, Japan)

1600




Symbolic computing for the working scientist

(Keynote lecture 7)







Prof. Dr. Robert Fitzgerald Morse (University of Evansville, USA)




KEYNOTE LECTURES SESSION

CHAIRMAN: Prof. Dr. Moehammad Barmawi

Venue: Seminar room 4 (3rd floor)










1500




Nanomaterials for Energy Conversion (Keynote lecture 8)







Prof. Dr. Muhammad Yahaya (Universiti Kebangsaan Malaysia)

1530




Organic-less Separations: Let the Pressure and Temperature Work on

(Keynote lecture 9)







Prof. Dr. Marsin Sanagi (Universiti Teknologi Malaysia)




CLOSING CEREMONY
Venue: Theatre 1










1645




Closing Speech by Prof. Dr. Norsarahaida Amin, Chairman of ICoMS 2007

Closing Speech by Assoc Prof. Dr. Zainal Abdul Aziz, Chairman of RAFSS 2007



Closing Speech by Prof. Ir. Dr. Siti Hamisah Tapsir, Deputy Vice Chancellor (Academic & International), Universiti Teknologi Malaysia.












LIST OF POSTERS
















RP1




Theoretical and Empirical Comparison of Coupling Coefficient and Refractive Index Estimation for Coupled Waveguide Fiber










Saktioto, Jalil Ali, Jasman Zainal, Rosly Abdul Rahman, Bashir Ahmed Tahir




RP2




Characterization of Low Pump Power Nd:YAG Laser










Abd Rahman Tamuri, Wan Rashidah Wan Majid, Noriah Bidin and Yaacob Mat Daud.




RP3




Epitaxial Method Of Quantum Devices Growth










Rosnita Muhammad, Zulkafli Othaman,Samsudi Sakrani




RP4




Process Development and Optimization of Laser Diode to Single-Mode Fiber Coupling and Packaging Using Laser Welding Technique










Fadhali M. A., Zinal J., Munajat Y., and Rahman R.




RP5




Preliminary Analysis for Data Collection on Vehicle Inspection










Nuzulha Khilwani Ibrahim, Rozana Diana Ahmad Rusli, Nurulhuda Firdaus Mohd Azmi




RP6




Taylor Series Expansion Model for Optical Free Space Feedforward Linearization System










A. B. Maiteeg, S. M. Idrus, H. Harun




RP7




Morphology and Optical Properties of Silicon Nanocrystals embedded in Silicon oxide










Yussof Bin Wahab, Yeong Wai Woon, Karim Bin Deraman




RP8




Tabletting of Morinda citrifolia Powder










Yus Aniza Yusof, Che Rodiziah Md. Noor




RP9




Fracture mechanisms of natural fiber reinforced composites at high temperatures










Al Emran Ismail




RP10




Harmonic Balance Analysis of the Downconversion Optoelectronic Mixer in HBT Photodetector










S.M.Idrus, A.Hussain, H.Harun, A.B. Mohammad




RP11




Algorithm for Magnetic Field Visualization of a Flat Plane Induced by Finite Dipole Segment Using GCC and Gnuplot










Rashdi Shah Ahmad, Chew Teong Han




RP12




Synthesis of Zeolite A by Ultrasound Irradiation Technique










H. M. Razif, N. H. N. Hadzuin, T. Sugeng and A. J. Aishah




RP13




Modeling of An Agent Based Schedule: Preliminary Study










Nuzulha Khilwani Ibrahim, Rozana Diana Ahmad Rusli, Nurulhuda Firdaus Mohd Azmi




RP14




Preparation of Pt/Carbon Nanocomposites with Hollow Structure Using TiO2 Photocatalytic Reaction










Yun Hau Ng, Takashi Harada, Shigeru Ikeda and Michio Matsumura




RP15




Micellar electrokinetic chromatography determination of high explosives residues in post blast water samples following solid phase extraction










Umi K. Ahmad and Sumathy Rajendran




RP16




An ESR Study of Trapped Electron on High Surface Area Carbon

from Palm Kernel Shells












Abdul Rahim Yacob, Ratna Sari Dewi Dasril, Mohd. Khairul Asyraf A.M., and Vicnisvarri Inderan




RP17




Effect of Substrate Temperature and Deposition Time on the Sizes of Silicon Nanodots Grown on Corning Glass (7059) Substrate










Imam Sumpono , Lim Qiao Jie and Samsudi Sakrani




RP18




Electrosynthesis of benzoic acid from chlorobenzene by carbon dioxide fixation method










Aishah Abdul Jalil, Hartini Mohd Aris, Normala Suliman, Norhuda Abdul Manaf, Nur Hanis Hayati Hairom, Mohd Razif Harun and Sugeng Triwahyono




RP19




Influence of Surfactant Types on Correlation of Retention Factor and Hydrophobicity of Selected Triazole Fungicides in Micellar Electrokinetic Chromatography










Wan Aini Wan Ibrahim, Dadan Hermawan, Mohamed oor Hasan and Mohd Marsin Sanagi




RP20




Design and Characterization of Resistance Heating for Czochralski Crystal Growth










Hamdan H.K and Mohammad Radzi Sudin




RP21




AC Conductivity of Ca0.8Ba0.2Cu3TiO4O12 Ceramic Sample










M. Mazni, W. D. W. Yusoff, C. P. Walter, S. A. Halim, Z. A. Talib




RP22




The Study of Precipitated Cu-Zn-Al Catalyst via pH Titration Analysis










Nur Fadhilah Idrisa, Salamiah Zakariaa, Nurain Nasrudinb, Robert Schlöglc and Sharifah Bee Abd Hamid




RP23




Mo-V-Te-Nb-Mn-O Catalyst for Selective Oxidation of Propane to Acrylic Acid: Effect Promoter Loadings to Surface Modification










Rosliza Mohd Salim, Fazliana Abd Hamid, Noor Azeerah Abas, Looi Ming Hoong and Sharifah Bee Abd Hamid




RP24




Effect of Platinum and Tungsten Oxide Metal Loading on n-Pentane Isomerization over HZSM-5 Based Catalyst










Mohd Razif Harun, Mohd Zamry Jamaludin, Sugeng Triwahyono and Aishah Abdul Jalil




RP25




Modified effects of LDPE/EVA blends by electron beam irradiation










Mazyiar Sabet, Azman Hassan, Mat Uzir Wahit




RP26




Nanometer Scale of Silicon Oxide Pattern using Scanning Probe Microscopy (SPM)










Teguh Darsono, Sabar Derita Hutagalung, Zainal Arifin Amad, Cheong Kuan Yew, Khatijah Aisha Yaacob




RP27




The Role of IgE antibodies in protection against P.falciparum










Reem Bairam, Marita Troye Bloomberg, Muntasir Eltayeb, Ibrahim Elhassan




RP28




Physicochemical Studies of CdS Nanoparticles -Titanosilicate Hybrid










Mustaffa Shamsuddin, Ng Yew Choo




RP29




Catalytic Properties of Metallosalen supported on MCM-41 in Oxidation of Benzene










Salasiah Endud, Chin Tian Kae, Shajarahtunnur bt. Jamil and Wong Ka Lun




RP30




μ-Oxo Bridged Dinuclear Iron(III) Complex Incorporated in MCM-48 as Efficient Catalyst for Oxidation of Aromatic Alcohol










Salasiah Endud, Lau Su Chien, Wong Ka Lun




RP31




MCNP for Neutron Radiography Simulation










Sumilah Marto, Wan Muhamad Saridan Wan Hassan and Azali Muhamad




RP32




Measurement of Diamagnetic Susceptibility of Crude Oils










Abd. Aziz Abd. Kadir, Hasrul Afendi Ahmad Khonif, Rashdi Shan Ahmad




RP33




Growth and Characterization of Gallium Oxide Thin Films Deposited By DC Magnetron Sputtering




RP34




Mechanical Properties of Talc and Calcium Carbonate Filled PVC










Bee Soo Tueen, Azman Hassan and Aznziam Abu Bakar




RP35




Effect of Na loading on the properties of catalysts and n-heptane isomerization over Pt/SO42--ZrO2 catalyst.










Sugeng Triwahyono and Aishah Abdul Jalil




RP36




A Supported Titanium and Copper Based Catalyst For Desulphurization Reaction










Junaidi Mohamad Nasir, Wan Azelee Wan Abu Bakar and Mohd Yusuf Othman




RP37




Photonic Devices Pigtailing and Packaging Using Laser Welding Technique










Fadhali M. A., Saktioto, Zainal J., Munajat Y. and Rahman R.




IP1




Oblique Stagnation Slips Flow of a Micropolar Fluid







Lok Yian Yian, Norsarahaida Amin, Ioan Pop

IP2




The Important of Statistical Orientation for Quality Improvement in Automotive Parts Manufacturing and Supply in Malaysia







Muzalwana Abdul Mutalib

IP3




Comparison of Two Algorithms for Production Layout Improvement – The Application







Syed Ahmad Helmi bin Syed Hassan

IP4




Identifying Statistically Significant Protein Spots in 2-DE Protein Expression Data







Norhaiza Ahmad & J. Zhang

IP5




Regression Model for Forecasting Malaysian Electricity Load Demand







Zuhaimy Ismail & Faridatul Azna Jamaluddin

IP6




Least cost and Highest Demand Procedure as Feasible Solution for Dedicated Vehicle Routing Problem







Zuhaimy Ismail & Mohammad Fadzli Ramli

IP7




Selected Heuristic Algorithms for Solving Traveling Salesman Problem







Zuhaimy Ismail & Wan Rohaizad Wan Ibrahim

IP8




An Electricity Load Demand Analysis Based on Day-Type using Exponential Smoothing







Zuhaimy Ismail & Rosnalini Mansor

IP9




Mixed Convection Boundary Layer of a Viscoelastic Fluid near a Stagnation Point







Nur Ilyana Anwar Apandi, Norsarahaida Amin & Sharidan Shafie

IP10




The Parallel AGE Method For Solving Incomplete Blow-Up Problem Using Heterogeneous Multiprocessor Systems







Norma Alias, Nurul Ain Zhafarina Muhamad


Plenary lecture 1


Nanoelectronics: a challenge for sustainable development
Moehammad Barmawi
Professor Emeritus in Physics, Institut Teknologi Bandung and
Member of Akademi Ilmu Pengetahuan Indonesia

Nano-science explores the possibility of creating nano-structures. It is of great interest, because these sructures have unique properties, leading to new and high functionality, and to various applications. A general overview on the Nano-science is presented emphasizing on the nano-fabrication and the basic science aspects. Then the presentation is concentrated in one of the high functionality, namely the functional nano scale devices, the socalled Nano electronics, which could be a challenge for the sustainable development. In this presentation the areas of nano electronics considered are: The Single Electron Transistor and its extension into I.C., and the Spintronics, the spin based electronics. The problem of spin injection is discussed as an illustration of the problem encountered in spintronics. It was found that, spin transport is fundamentally different from charge transport. Spintronics offers the possibility of further miniaturization and of lowering power consumption than the present, charge based, electronics could afford. The presentation is concluded with a suggestion on a possible regional cooperation and on how we should meet the challenge.


Plenary Lecture 2

Newton Polyhedron and Estimation of Exponential Sums
Kamel Ariffin Mohd Atan
Laboratory of Theoretical Mathematics, Institute for Mathematical Research

Universiti Putra Malaysia

A p-adic Newton polygon associated with a polynomial is defined to be the convex hull of the set of points (i, or dpai). Such a Newton polygon yields information on the number of roots of f with certain p-adic sizes. This information is useful in the determination of the estimate of one-variable exponential sums. An analogue of the polygon is the Newton polyhedron. It is the lower convex hull of the points (i, j, or dpaij) associated with a two-variable polynomial.

The Newton polyhedron yields information on the p-adic properties of the zeros of the associated polynomial. The indicator diagram is a device in the Euclidean plane that provides descriptions of the properties of a Newton polyhedron. It is useful in the determination of p-adic sizes of common roots of a pair of polynomials in Zp[x,y]. This is done by examining the combination of indicator diagrams of the Newton polyhedrons associated with both polynomials. Information on the p-adic sizes of common zeros of partial derivative polynomials associated with a two-variable polynomial in Zp[x,y] obtained is used to determine the estimate of an exponential sum associated with the polynomial.
Plenary lecture 3


National Strategic Framework of Thailand’s Nanotechnology and

Her NANOTEC Center
Wiwut Tanthapanichakoon and Weeraya Pakawech
National Nanotechnology Center, NSTDA, Thailand

The presentation gives an overview of the National Strategic Framework for Nanotechnology in Thailand as well as an introduction of the 5-year Master Plan of the National Nanotechnology Center (NANOTEC) under the National Science and Technology Development Agency (NSTDA), Ministry of Science and Technology. It concludes with a brief description of the current situation and future trend of the platform technologies recently adopted by NANOTEC: nano-coating, nano-encapsulation, nano-devices and computational nanoscience.




Plenary lecture 4



The Future of Statistical Process Control In Supply Chain Management: The Case At Indonesian-Aerospace Industry
Maman A. Djauhari1 and Sutarno2
1Institut Teknologi Bandung, Indonesia

2Indonesia-Aerospace Industry (IAe)

Indonesian-Aerospace Industry (IAe), initiated in 1948, produces many types of airplanes and helicopters and is also a supplier of Airbus and many other international aircraft industries. As an aircraft industry, IAe has also its own suppliers. Thus, IAe is part of a large supply chain management (SCM) system and simultaneously it has its own system. All suppliers in those SCM systems are to fulfill the requirements, which are multivariate in nature, of principal customer. In this paper we present some multivariate setting problems faced by IAe, as a part of the SCM system at Airbus, that we define as our future research direction in order to improve quality and productivity and reduce costs.


Keywords: multivariate capability analysis, multivariate statistical process control, quality and productivity improvement, supply chain management.

Plenary lecture 5


Singapore Synchrotron Light Source – A Regional Platform for Multidisciplinary Cross-Border Research
Herbert O. Moser
Singapore Synchrotron Light Source,

National University of Singapore, 5 Research Link, Singapore 117603
Synchrotron radiation has become one of the premier experimental tools not only for research across a great many of science fields, but also for widespread commercial applications. Funded by the Agency for Science, Technology and Research (A*STAR), the Ministry of Education (MOE) and the National University of Singapore (NUS), SSLS is operated as a university-level research institute of NUS.

Five beamlines and experimental facilities are operational including the



  • LiMiNT facility (Lithography for Micro/Nanotechnology) for micro/nanofabrication based on the LIGA process network with the primary pattern generation being performed by means of electron beam or laser beam writing, the

  • PCIT phase contrast imaging and tomography beamline that enables white light microimaging of opaque samples, in particular, soft matter and tissue, the

  • SINS beamline (Surface, interface and nanostructure science) for the characterisation of electronic and magnetic properties of advanced materials by means of X-ray photoemission (XPS), X-ray absorption fine structure spectroscopy (XAFS) and magnetic circular dichroism (XMCD) in the soft X-ray range from 50 eV to 1.2 keV, the

  • ISMI facility (Infrared spectro/microscopy) to characterise molecules and low energy electron excitations in gases, liquids, solids and engineered materials, and the

  • hard X-ray beamline XDD (X-ray demonstration and development) that features the main common X-ray methods such as diffraction (XRD), reflectometry (XRR), topography (XRT), absorption fine structure spectroscopy (XAFS), and fluorescence spectroscopy (XRF).

One more beamline for electron and photon beam diagnostics (EPD) is nearing completion.

This portfolio of experimental facilities caters for a wide variety of disciplines including artwork characterization, biomedical engineering, chemical engineering and catalysis, data storage, environmental science and engineering, life sciences, materials science and engineering, micro/nanotechnology, physics, semiconductor manufacturing, water technology, and zoology. SSLS’ userbase stands at more than 350 researchers, 83% local and 17% from abroad, and is steadily growing.

SSLS’ own R&D programme comprises


  • micro/nanomanufacturing of devices, engineered materials, and 10 nm nanolithography, the

  • analytical characterization of materials and processes, and

  • work towards new synchrotron light sources using superconducting miniundulators.

In these fields, SSLS is providing both, research and commercial service.

A selection of recent achievements includes the development of the first electromagnetic metamaterials in the THz spectral range up to a record frequency of 216 THz, the study of charge transfer processes between organic molecules and metal surfaces by means of core hole clock spectroscopy in the soft X-ray spectral range, and the characterisation of thin multilayer systems for optical and magnetic data storage by means of X-ray reflectometry and grazing incidence XAFS.

SSLS is inviting Malaysian and, specifically, Johor-based researchers to consider the wealth of opportunities that wait for exploitation in the framework of a cross-border cooperation.
Keynote lecture 1



A Systematic Approach to Filtration Modeling
Ali J. Chamkha
Manufacturing Engineering Department, The Public Authority for Applied Education and Training, P.O.Box 42325, Shuweikh, 70654 Kuwait

The work reported in this presentation represents a systematic development of a multiphase, multi-dimensional, continuum filtration model. General multi-dimensional mixture theory is discussed first. This is followed by a systematic reduction of the general equations to the accepted deep-bed filter formulation. Consequently, the assumptions inherent in that formulation are made clear. Next, a way to derive the shallow filter equations from the deep-bed filter equations for idealized pressure and mass transfer functions are reported. Then, attention is returned to the general deep-bed filter equations and numerical results for various physical conditions are reported. Finally, important results are summarized and suggestions for future research are given.




Keynote lecture 2



The Role of Statistics in Biological and Medical Sciences in Developing Countries
Asep Saefuddin
Department of Statistics, Faculty of Mathematics and Science, IPB, Bogor, Indonesia

Statistics is unavoidable in biology and medical research. It is due to the complexity of these areas involving large population, many factors related to outcome variables, measurement aspect, clustering, and other things that invite statistics to play its role in biology and medical sciences. This paper describes briefly statistical method in these areas encompassing basic/standard statistics, modelling application in estimating/predicting parameters, statistical conclusion, and recommendation. Due to biology and medical research characteristics, statistics plays significant role mixed effect models both linear and generalized linear models. Additionally, the experience of IPB (Bogor Agricultural University) in statistical education and research is presented. IPB is the oldest Dept. of Statistics in Indonesia has been contributing statistical concept originally in animal/plant breeding/quantitative genetics and now expanding to other biological sciences, epidemiology, and medical sciences. However, its contribution to molecular biology and geosciences is still limited. Hence, international collaboration in the area of geo and bioinformatics is required.



Keynote lecture 3


Recent Progresses in Membrane Gas Separation Technology
Takeshi Matsuura
Department of Chemical Engineering

University of Ottawa, Ottawa, Canada

This paper gives a historic overview of the membrane gas separation technology. It was the discovery of the asymmetric structure of the membrane in nineteen sixties that triggered industrial membrane applications, in general, and membrane gas separation technology, in particular. Since then, many efforts have been made to search for superior polymeric materials for further improvement of membrane performance.


In 1991 Robeson set upper bounds in the selectivity-permeability plots of several gas-pairs by compiling experimental data for a large number of polymeric materials. It was then realized that although the boundary lines had been shifted to the desirable direction after nearly twenty years’ research efforts, the achievement had not been truly spectacular. Attention of membrane research community was then focussed on inorganic materials, such as silica, zeolite and carbon, which exhibited molecular sieving properties. Remarkable improvements have been made in terms of the selectivity-permeability plot but the exploitation of these materials for practical applications remains underachieved primarily due to their poor processibility.
In order to combine the superb molecular sieving effects of inorganic materials and the desirable mechanical and processing properties of polymers, considerable efforts have been made recently to fabricate composite membranes, also called mixed matrix membranes (MMMs), in which inorganic particles are incorporated in host polymeric membranes. With respect to carbon material, attempts to fabricate MMMs were further encouraged by the recent progress in nano-technology in general and carbon nano-tubes in particular. Major performance achievements of MMMs are reviewed in this paper.
Another attempt was to facilitate reactions by combining reactor and membrane separator in one unit. These membrane reactors were developed for dehydrogenation, oxidative coupling, steam reforming etc, i.e. for the reactions that had relevance for the petrochemical industry. Although industrial applications of the membrane reactor are not fully explored for a number of reasons, this still remains a very attractive concept.


Keynote lecture 4



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