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Process Systems Engineering
(PSE): Process simulation, process control, process synthesis, large scale
process optimization, real time optimisation (rto), CO2 mitigation
technologies, automatic moisture control, post harvest grain technology.
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My major research area is in the development and application of Process
Systems Engineering (PSE) technology to industrial plants.
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Our approach is to work with industry on important practical problems.
Our measure of success is whether we can solve a problem that has
practical significance and has eluded solution. Over the years, we
have worked on joint research projects with several industrial partners.
This approach benefits both the industrial and academic sectors. A
number of publications have resulted from this work; several are listed
below.
Process
Systems Engineering
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The major research thrust that has emerged has been the use and integration
of knowledge (in all its forms) to design and optimize the operation
of processes at several levels of detail. At the highest level, we
are developing computer programs to synthesize or invent process flowsheets
using knowledge in the form of experience. At a lower level, we are
developing methods to synthesize and optimize the design of special
processes, for example, CO2 mitigation processes and thermally
integrated distillation sequences. This involves a combination of
experience, mathematical models and optimization.
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My continued research now centres on the development of generalized
procedures using available software to integrate the synthesis, simulation,
optimization and control functions. For example, we are currently
commercial simulation systems for building real time optimisation
applications. This involves a tradeoff between speed, accuracy and
the ability to update the model with on-line information. Processes
that are currently being studied are refinery processes, catalytic
distillation processes, biotechnology processes including production
of tPa
CO2
Mitigation Processes
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This research
focuses on PSE applications of energy utilisation with a goal to reduce CO2 and other
greenhouse gas emissions.
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Current
projects involve the techno-economic evaluation of various CO
2 mitigation strategies including MEA scrubbing, O2
/CO2 recycle combustion, integrated gasification combined
cycle (IGCC), fuel cells and membranes.
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Another major project concerns the development of a new generation of computer
models for the synthesize of green house gas mitigation systems. Our modelling framework will have the ability to analyze
a fleet of power plants and synthesize an optimal fleet-solution.
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Our research
is involved with a Canadian CO2 Consortium on several large-scale
CO2 mitigation options.
Post Harvest
Grain Technology
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An application of PSE technology to Post Harvest Grain Technology
has emerged as an interesting and important application. Grain losses
due to only to inadequate and poor dryer control have been estimated
at about 10% world wide. Our research has led to the development of
commercial control systems for automatic moisture control in grain
and industrial dryers. For more information on the commercial control
system, known as the DryerMaster system, please contact
Dantec
, Waterloo, Ontario.
NSTDA
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NSTDA
(National Science and
Technology Development Agency of Thailand) and the Department of Chemical
Engineering at the University of Waterloo have signed an MOU outlining
an initiative to promote the training of graduate students. NSTDA
and the University of Waterloo currently have several active projects.
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For Thai students wishing to participate in the consortia with the
University of Waterloo there are two basic options:
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support
by Thai Government Scholarships
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support by NSTDA
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In the case of support by a Thai Government Scholarship the student
should register as a graduate student at the University of Waterloo.
In the case of support by NSTDA the student may choose to register
at a Thai University or at the University of Waterloo depending on
the research plan and funding available from NSTDA. In either case
the student is encouraged to develop a collaborate research program
with University of Waterloo professor and a Thai university professor.
Graduate
Students
A list of graduate students (present
and past) and their research topics is outlined below. Please feel free
to contact them to discuss their research projects.
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Jesus G. Ordorica
, MASc, “Techno-Economic Evaluation of IGCC Power Plants for CO
2 Mitigation”
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David Singh
, MASc, “Simulation of CO2 Capture Options from Coal Fired
Power Plants: O2/CO2 Recycle vs Amine Scrubbing”
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Nongluk Chawankul
, MASc, “Simulation and Optimisation of an Agitated Thin Film Evaporator
for Orange Juice Concentration”
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Wanwisa Skolop
, PhD, “Metabolic Flux Estimation For
a-Amylase And Protease Synthesis
By Bacillus Subtilis”
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Khairayah Mohd-Yusof
, PhD, “Development Analysis and Comparison of Connectionist Models
for Real Time Optimisation”
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Sabina Rouf
, PhD, "Simulation, Design
and Optimisation Applied to Bioproduction of tPa"
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Hussein Eldarsi
, MASc, "Steady State
Simulation and Optimisation of MTBE Catalytic Distillation Columns"
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Heng Zhi Lin
, MASc, "Dynamic Simulation
and Control of MTBE Catalytic Distillation Columns"
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Seonwook Kim
, MASc, "Design and Optimisation
of MTBE Catalytic Distillation Processes"
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Michael Chong Ping
, MASc, "Simulation, Costing and Optimisation of Complex Chemical
Plants using AspenPlus"
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Lila Naidu
, MASc, "Simulation
and Optimisation of Thai Olefins Processes"
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Sajjad Ahmed
, MASc, “HAZOP and Risk Analysis of Chemical Processes”
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Rob Bigec
, MASc, “A Variable Time Interval Approach to Continuous Production
Planning”
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Penny Salmon
, MASc, “Effect of Scheduling Set Point Changes on Process Stability”
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Steven Lee
, MASc, “Simulation and Control of Chemical Processes Process Control
Using Speedup”
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Rob Kuhne
, MASc, “Process Control Performance Evaluation and Process Variability
Diagnostics for a Polymer Reactor”
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Paul Fountain
, MASc, “Model‑Based Control of High Purity Distillation Columns”
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Mahesh Garg
, MASc, “Expert Systems for the Selection of Separation Processes”
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Chris Crowe
, MASc, “XSEFFS and BUSI Expert Systems for Chemical Process Development”
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Daniel Chien
, MASc, “A Method for Flexibility Analysis of Continuous Processing
Plants”
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Althea Champagnie
, MASc, “Effect of Digestion Caustic and Bauxite Composition on the
Economics of a Bayer Alumina Plant”
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Randy Wagler
, PhD, “Synthesis of Thermally Integrated Flexible Distillation Sequences”
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Steven Lythgoe
, MASc, “A Model for the Thermal Dissolver of the Wilsonville Direct
Coal Liquifaction Process”
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Jeremy Jones
, MASc, “Computer Simulation of Crossflow Grain Dryers to Find More
Efficient Designs”
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Brian Young
, MASc, “A Techno‑Economic Evaluation of Atmospheric Fluidized Bed
Combustion in Steam Production”
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Rob Ham
, MASc, “Effect of Steam Temperature on the Economics of a Cogeneration
Power Plant”
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Kathy. Bawden
, MASc, “Thermal Integration of Separation Sequences with Complex
Towers”
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Mahmoud Kattan
, MASc, “Synthesis of Thermally Integrated Distillation Columns”
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Mark Dokurno
, MASc, “Simulation of an Ethylene Oligomerization Reactor System
Using ASPEN”
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Selected References
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Singh,
D., E. Crosiet, P.L. Douglas
and M.A. Douglas, 2001, "CO2 Capture Options for an Existing Coal
Fired Power Plant: O2/CO
2 Recycle versus Amine Scrubbing", to be presented at the CSChE
Conference, Halifax, October
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Yusof,
K. Mohd., F. Karray, and P.L. Douglas, 2001, “Neurocomputing Approach
for Real Time Optimisation Modelling of an Industrial Process, AIM
Conference, Italy, (refereed conference paper)
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Skolpap,
W., J. M. Scharer, P. L. Douglas, and M. Moo-Young, 2001, “Metabolic
Flux Estimation For
a-Amylase And Protease Synthesis
By Bacillus Subtilis”, IFAC, Quebec, (refereed conference paper)
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Singh,
D., E. Crosiet, P.L. Douglas and M.A. Douglas, 2001, "CO2
Capture Options for an Existing Coal Fired Power Plant:
O2/CO2 Recycle versus Amine Scrubbing",
presented at the First National Conference on Carbon
Sequestration, Washington, DC, May 14-17, 2001
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Singh,
D., E. Crosiet, X. Feng, P.L. Douglas and M.A. Douglas, 2000, "Simulation
of CO2 Mitigation Processes”, Green House Gas Conference,
Cairns, Australia
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Pongpipatphong,
M., P.L. Douglas, 2000, "Optimisation of Rice Drying Processes Using
Gams", IDS 2000, The Hauge, Netherlands, August
(refereed conference paper)
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Kim, S.
and P.L. Douglas, 2001, Optimisation of Methyl Tert-Butyl-Ether (MTBE)
Synthesis Processes using AspenPlus, Developments in Chemical and
Metallurgical Engineering, in press
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Rouf, S.A.,
P.L. Douglas, M. Moo-Young and J.M. Scharer, 2001, "Computer Simulation
for Large Scale Bioprocess Design", Biochemical Engineering
Journal, 3515, 1-6
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Chawankul,
N., S. Chuaprasert, P.L. Douglas and W. Luewisutthichat, 2001, "Simulation
of an Agitated Thin Film Evaporator for Concentrating Orange Juice
Using AspenPlus, Journal of Food Engineering, 47, 4, 247-253
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Tuptimtong,
P., S. Chuaprasert, P.L. Douglas and W. Luewisutthichat, 2001, "Supercritial
CO2 Extraction of Nimbin from Neem Seeds - A Preliminary
Study, Journal of Food Engineering, 47, 4, 289-293
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Rouf, S.A,
P.L. Douglas, M. Moo-Young and J.M. Scharer, 2000, "Economics of Fed-batch
Operation - A Computer Aided Approach", Bioprocess Engineering, in
press
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Rouf, S.A.,
P.L. Douglas, M. Moo-Young and J.M. Scharer, 2000, "Single Versus
Multiple Bioreactor Scaleup: Economy for High Value Products", Biochemical
Engineering Journal, 6, 25-31
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Lin, H.,
P.L. Douglas, 2000, "Dynamic Simulation and Control of an MTBE Catalytic
Distillation Column”, Developments in Chemical Engineering and Mineral
Processing, 8, 3/4, 375-399
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Chuaprasert,
S., P.L. Douglas, M. Nguyen, 1999, "Data Reconciliation of an Agitated
Thin Film Evaporator System Using AspenPlus", J. of Food Engineering,
39, 261-267
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Bigec,
R, G.R. Sullivan, P.L. Douglas, 1998, "A Variable Time Interval Approach
to Continuous Production Planning", Chemical Engineering Research,
5, 119-136
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Rouf, S.,
P.L. Douglas, M. Moo-Young, J.M. Scharer, 1998, "Computer Aided Design
of a Large Scale Bioprocess", 7th International Conference on Computer
Applications in Biotechnology, May 31- June 4, Osaka, Japan, 157-161
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Lee, S.,
W. Zhou, P.L. Douglas, G.R. Sullivan, 1998, "Simulation and Control
of Chemical Processes Under Generic Model Control Using SpeedUp”,
Chemical Engineering Research Trends, 5, 137-149
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Eldarsi,
H., P.L. Douglas, 1998, "Methy-Tert-Butyl-Ether Catalytic Distillation
Column - II Optimisation, Trans IChemE, 76, Part A, 517-524
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Tarachan,
J., J. Seevaratnam, D. Jama, P.L. Douglas, 1998, "Simulation and Data
Reconciliation of an RDF Incinerator Using AspenPlus", Chemical Engineering
Research Trends, 5, 99-117
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Eldarsi,
H., P.L. Douglas, 1998, "Methy-Tert-Butyl-Ether Catalytic Distillation
Column - I Multiple Steady States”, Trans IChemE,76, Part A,
509-516
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Chong-Ping,
M., P.L. Douglas, 1998, “Simulation, Costing and Optimisation
of Complex Chemical Plants”,
Chemical Engineering Research Trends, 5, 195-205
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Piccolo,
M., P.L. Douglas, P.L. Lee, 1996, "Data Reconciliation Using AspenPlus",
Developments in Chem. Eng.and Mineral Processing, 4, 3/4, 157-182
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Longley,
A.W., Douglas, P.L., 1996, "Optimal Design with Optimal Uncertainty
in Parameters and Control Variables", Developments in Chemical Engineering
and Mineral Processing, 4, 1/2, 39-59
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Zhou, W.,
P.L. Douglas and G.R. Sullivan, 1996, "A New Methodology for Calculating
the Relative Gain Array of Integrating Processes", International Journal
of Control, 15, 7, 321-329
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Naysmith,
M., P.L. Douglas, 1995, "Review of Real Time Optimization in Chemical
Process Industries", Developments in Chemical Engineering and Mineral
Processing, 3, 2, 67-87
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Fountain,
P.S., W. Zhou, P.L. Douglas, and G.R. Sullivan, 1994, "Model Based
Control of A High Purity Distillation Column", CJChE, 72, 1055-1065.
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Lin, X.,
R.B. Newell, P.L. Douglas, S.K. Mallick, 1994, 'Application of Output
Structural Controllability to a Thermally Integrated Distillation
Sequence', International Journal of Systems Science, 25, 9, 1437-1459.
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Abufares,
A., P.L. Douglas, 1994, "Mathematical Modelling and Simulation of
a Catalytic Distillation Process Using SpeedUp and AspenPlus", Trans.
I.Chem.E., 73, A, 3-12.
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Cameron,
I.T., Douglas, P.L., Lee, P.L., 1994 "Process Systems Engineering
- The Cornerstone of a Modern Chemical Engineering Curriculum", Chemical
Engineering Education, 28, 3, 210-213.
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Douglas,
P.L., Jones, J.A.T. and Mallick, S.K., 1994, "Modelling and Simulation
of Crossflow Grain Dryers: Part I - Model Development", Trans IChemE,
Vol. 72, Part A, 325-331.
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Douglas,
P.L., Jones, J.A.T. and Mallick, S.K., 1994, "Modelling and Simulation
of Crossflow Grain Dryers: Part II - Design Modifications", Trans
IChemE, Vol. 72, Part A, 332-340.
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Douglas,
P.L., Jones, J.A.T. and Mallick, S.K., 1994, "Modelling and Simulation
of Crossflow Grain Dryers: Part III - Optimization", Trans IChemE,
Vol. 72, Part A, 341-349.
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Douglas,
P.L., S.C. Lythgoe, S.K. Mallick, 1994, "Coal Liquefaction Modelling:
1. Development of a Kinetic Model", FUEL, 73, 4, 531-541.
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Douglas,
P.L., S.C. Lythgoe, S.K. Mallick, 1994, "Coal Liquefaction Modelling:
2. Parameter Estimation" FUEL, 73, 4, 542-548.
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Douglas,
P.L., S.C. Lythgoe, S.K. Mallick, 1994, "Coal Liquefaction Modelling:
3. Application to Full Scale Pilot Plant", FUEL, 73, 4, 549-556.
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Wang, F.Y.,
I.T. Cameron, J.D. Litster, P.L. Douglas, 1993, "A Distributed Parameter
Approach to the Dynamics of Rotary Drying Processes", Drying Technology,
Vol. 11, No. 7, 1641-1656.
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Champagnie,
A.M., P.L. Douglas, S.K. Mallick, 1993, "Effect of Digestive Caustic
and Bauxite Composition on the Economics of Bayer Alumina Plants",
Trans. Inst. Min. Metall. (Sect. C: Mineral Process Extr. Metall.),
102, C83-C92.
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Garg, M.K.,
J.G. Linders, P.L. Douglas, S.K. Mallick, 1993, "A New Algorithm for
Selection of Separation Technologies", Trans. IChemE, 71, Part A,
479-487.
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Douglas,
P.L., A. Kwade, P.L. Leef and S.K. Mallick, 1993, "Simulation of a
Rotary Dryer for Sugar Crystalline", Drying Technology, Vol 11, No
1, 129-155
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Lee, P.L.,
I.T. Cameron, R.B. Newell, J.D. Litster, P.L. Douglas, and G.R. Sullivanf,
1992 "Teaching Process Systems Engineering Using a Resource Based
Approach", Australian Journal of Engineering Education, 3,1, 127-128
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Crowe,
C., P.L. Douglas, J. Glasgow, and S.K. Mallick, 1991, "Development
of an Expert System for Process Flowsheeting", Trans. IChemE, 70,
Part A, 110-117
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Douglas,
P.L., S.K. Mallick and R.M. Wagler, 1991, 'Synthesis of Flexible Thermally
Integrated Distillation Sequences' Trans. IChemE, 69, Part A, 483-491
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Douglas,
P.L., G.R. Sullivan, M.G. Whaley, 1992, 'Control Performance Measures
for Grain Drying Processes', Trans. of the ASAE, Vol. 35, No 4, pp.
1235-1241
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Douglas,
P.L., B.E. Young, 1991, 'Modelling and Simulation of an AFBC Steam
Heating Plant Using ASPEN/SP', Fuel, 70, 145 154.
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Garg, M.K.,
P.L. Douglas, J.G. Linders, 1991, 'An Expert System for Identifying
Separation Processes', CJChE, 69, 67 75.
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Chien,
D.C.H., P.L. Douglas and A. Penlidis, 1991 'A Method for Flexibility
Analysis of Continuous Processing Plants', CJChE, 69, 58 66.
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Chien,
D.C.H., P.L. Douglas, D.H. Herman, and A. Marchbank, 1990, 'Modelling
a Uranium Ore Bioleaching Process', CJChE, 68, 427 434
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Ilias,
S., P.L. Douglas, 1989, 'Inertial Impaction of Aerosol Particles on
Cylinders at Intermediate and High Reynolds Numbers', Chem. Eng. Sci.,
44, 1, 81 99
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Ham, R.,
P.L. Douglas, 1988, 'The Effect of Steam Temperature on the Economics
of a Cogeneration Power Plant', CJChE, 66, 987 994
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Wagler,
R.M., P.L. Douglas, 1988, 'A Method for the Design of Flexible Distillation
Sequences, CJChE, 66, 579 590
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Ilias,
S., P.L. Douglas, 1988, 'On the Deposition of Aerosol Particles on
Cylinders in Turbulent Cross Flow', J. Aerosol Sci., 19, 4, 451 462
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Chau, R.,
J. Glasgow, P.L. Douglas, 1986, 'Building Expert Systems for Chemical
Process Engineering using NIAL', The 6th Workshop on Expert Systems,
Agence de l'Informatique, April 1986, Avignon, France
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Douglas,
P.L., R.M. Wagler, 1986, 'Distillation Sequence with Fixed Degree
of Flexibility Can Handle Feed Changes', Oil and Gas Journal, March
17, 84 88
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Kattan,
M., P.L. Douglas, 1985, 'A New Method for the Synthesis of Thermally
Integrated Distillation Sequences', CJChE, 64, 162 170
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Becker,
H.A., P.L. Douglas, S. Ilias, 1984, 'Development of Optimization Strategies
for Industrial Grain Dryer Systems', CJChE, 62, 738 745
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Dokurno,
M.G., P.L. Douglas, 1984, 'Simulation of an Ethylene Oligomerization
Reactor System Using ASPEN', CJChE, 62, 818 824
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Douglas,
P.L., F.A.L. Dullien, D.R. Spink, 1983, 'Particle Agglomeration and
Capture as a Result of Synergism Between Inertial Impaction and Eddy
Diffusion', CJChE, 61, 776 784
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Douglas,
P.L., F.A.L. Dullien, D.R. Spink, 1982, 'On the Deposition of Aerosols:
A Review and Recent Theoretical and Experimental Results', Waste Treatment
and Utilization, Theory and Practice of Waste Management, 2, 391 408
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Douglas,
P.L., F.A.L. Dullien, D.R. Spink, 1976, 'An Investigation of the Operating
Parameters of a Low Energy Wet Scrubber for Fine Particulates', CJChE,
54, 173 176
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