An introduction to the most important processes employed by the chemical industries, such as plastics, pharmaceutical, chemical, petrochemical, and biochemical. The major emphasis is on formulating and solving material and energy balances for simple and complex systems. Equilibrium concepts for chemical process systems will be developed and applied. Computer courseware will be utilized extensively.
The design of industrial separation equipment using both analytical and graphical methods is studied. Equilibrium based design techniques for single and multiple stages in distillation, absorption/stripping, and liquid-liquid extraction are employed. An introduction to gas-solid and solid-liquid systems is presented as well. Mass transfer considerations are included in efficiency calculations and design procedures for packed absorption towers, membrane separations, and adsorption. Ion exchange and chromatography are discussed. The role of solution thermodynamics and the methods of estimating or calculating thermodynamic properties are also studied. Degrees of freedom analyses are threaded throughout the course as well as the appropriate use of software. Iterative rigorous solutions are discussed as bases for Aspen simulation models used in Design VI.
Senior Design provides, over the course of two semesters, collaborative design experiences with a problems of industrial or societal significance. Projects can originate with an industrial sponsor, from an engineering project on campus, or from other industrial or academic sources. In all cases, a project is a capstone experience that draws extensively from the student's engineering and scientific background and requires independent judgments and actions. Advice from the faculty and industrial sponsors is made readily available. The projects generally involve a number of unit operations, a detailed economic analysis, simulation, use of industrial economic and process software packages, and experimentation and/or prototype construction. The economic thread initiated in Design VI is continued in the first semester of Senior Design by close interaction on a project basis with E 421. Leadership and entrepreneurship are nourished throughout all phases of the project. The project goals are met stepwise, with each milestone forming a part of a final report with a common structure.
Senior Design provides, over the course of two semesters, collaborative design experiences with a problems of industrial or societal significance. Projects can originate with an industrial sponsor, from an engineering project on campus, or from other industrial or academic sources. In all cases, a project is a capstone experience that draws extensively from the student's engineering and scientific background and requires independent judgments and actions. Advice from the faculty and industrial sponsors is made readily available. The projects generally involve a number of unit operations, a detailed economic analysis, simulation, use of industrial economic and process software packages, and experimentation and/or prototype construction. The economic thread initiated in Design VI is continued in the first semester of Senior Design by close interaction on a project basis with E 421. Leadership and entrepreneurship are nourished throughout all phases of the project. The project goals are met stepwise, with each milestone forming a part of a final report with a common structure.
CHE 672:Processing of Polymers for Biomedical Applications
Descriptions of various polymer processing operations and processing requirements of biomedical products, principles of processing of polymers covering melting, pressurization, mixing, devolatilization, shaping using extrusion, spinning, blowing, coating, calendering and molding technologies, surface treatment and sterilization, applications in the areas of prostheses and artificial organs and packaging of various biomedical devices.
Schaefer School of Engineering & Science
Department:
Chemical Engineering & Materials Science
Program:
Materials Science / Chemical Engineering / Nanotechnology
Research Center:
New Jersey Center for MicroChemical Systems (NJCMCS)
Research & Education
Research
Research interests include mathematical modeling of transport processes, and development of 3-dimensional finite element method based codes for simulation of flow, heat, and mass transfer in complex geometries, polymer processing, and rheological characterization of complex fluids. Strong research background in experimental fluid flow, heat and mass transfer, and surface characterization of materials including contact angle measurement, determination of interfacial/surface tension, and interfacial stability on solid substrates. His current research focus is on developing an understanding of the role of complex surface effects in transport phenomena in micro- configurations, utilizing his prior experience in transport processes in macro- configurations as a platform. Some of the FEM codes he developed have been used to design successfully processing equipment for composite energetic materials for the US Army, and the Navy. Philips Netherlands, the GAF Materials Corporation, and the Petroleum Research Fund have also funded his research work.
Education
McGill University Ph.D. in Chemical Engineering, 1985
Massachusetts Institute of Technology S.M. in Chemical Engineering, 1982
University of Ibadan, Nigeria B.Sc. Honors in Engineering, 1978
Experience & Service
Experience
Professor, Dept. of Chemical Engineering and Materials Science, Stevens Institute of Technology, 2005 - present
Associate Professor, Dept. of Chemical Engineering and Materials Science, Stevens Institute of Technology, 1998 - 2005
Research Associate Professor, Dept. of Chemical Engineering and Materials Science, Stevens Institute of Technology, 1992 - 1998
Senior Research Associate/Research Associate, Dept. of Chemical Engineering and Materials Science, Stevens Institute of Technology, 1990 - 1992
Associate Professor, Dept. of Chemical Engineering, University of Port Harcourt, Nigeria, 1988 - 1990
Assistant Professor, Dept. of Chemical Engineering, University of Port Harcourt, Nigeria, 1985 - 1988
Achievements & Professional Societies
Honors & Awards
Dean's Honors List, McGill University Ph.D. thesis
Stevens Alexander Crombie Humphreys Award for Outstanding Teaching (2000)
Technical Editor, Proceedings of the Nigerian Society of Chemical Engineers AGM 1987
NSERC Fellowship Award of Canada, 1990
Professional Societies
American Institute of Chemical Engineers
Nigerian Society of Chemical Engineers, US Chapter
Selected Publications
Journals
John T. Adeosun and Adeniyi Lawal. (2009). "Numerical and Experimental Studies of Mixing Characteristics in a T-junction Microchannel Using Residence-time Distribution", Chemical Engineerinf Science. 64 2422-2432.
John T. Adeosun and Adeniyi Lawal. (2009). "Numerical and Experimental Mixing Studies in a MEMS-based Multilaminated/Elongational Flow Micromixer", Sensors and Actuators B. 139 637-647.
Yury Voloshin and Adeniyi Lawal. (2009). "Kinetics of Hydrogen Peroxide Reduction by Hydrogen in a Microreactor", Applied Catalysis A: General. 353 9-16.
Yury Voloshin, James Manganaro and Adeniyi Lawal. (2008). "Kinetics and Mechanism of Decomposition of Hydrogen Peroxide over Pd/SiO2 Catalyst", Ind. Eng. Chem. Res.. 47 8119-8125.
Sunitha Tadepalli and Adeniyi Lawal. (2008). "The Catalytic Hydrogenation of Aromatic NitroKetone in a Microreactor: Reactor Performance and Kinetic Studies", International Journal of Chemical Rector Engineering. 6 A112.
Y. Voloshin and A. Lawal. (2007). "Kinetics of Hydrogen Peroxide Synthesis by Direct Combination of H2 and O2 in a Micro-reactor", Catalysis Today, 125 40-47.
S. Tadepalli, D. Qian and A. Lawal. (2007). "Comparison of Performance of Micro-reactor and Semi-batch Reactor for Catalytic Hydrogenation of o-Nitroanisole", Catalysis Today, 125 64-73.
R. Halder and A. Lawal. (2007). "Experimental Study on Hydrogenation of Anthraquinone Derivative in a Micro-reactor", Catalysis Today, 125 48-55.
R. Halder, A. Lawal and R. Damavarapu. (2007). "Nitration of Toluene in a Micro-reactor", Catalysis Today, 125 74-80.
S. Tadepalli, R. Halder and A. Lawal. (2007). "Catalytic Hydrogenation of o-Nitroanisole in a Micro-reactor: Reactor Performance and Kinetic Studies", Chemical Engineering Science, 62 2663-2678.
D. Qian and A. Lawal. (2006). "Numerical Study on Gas and Liquid Slugs for Taylor Flow in a T-junction Microchannel", Chemical Engineering Science, 61 7609-7625.
J. Adeosun and A. Lawal. (2005). "Mass Transfer Enhancement in Micro-channel Reactors by Re-orientation of Fluid Interfaces and Stretching", Sensors and Actuators B, 110 101-111.