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W. Harmon Ray, Ph.D. - Publications

Affiliations: 
1966-1970 Chemical Engineering University of Waterloo, Waterloo, ON, Canada 
 1970-1976 Chemical Engineering State University of New York, Buffalo, Buffalo, NY, United States 
 1976- Chemical Engineering University of Wisconsin, Madison, Madison, WI 
Area:
Process Systems Engineering, Chemical Reaction Engineering, Polymerization Processes
Website:
https://directory.engr.wisc.edu/che/Faculty/Ray_W-/
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69 high-probability publications. We are testing a new system for linking publications to authors. You can help! If you notice any inaccuracies, please sign in and mark papers as correct or incorrect matches. If you identify any major omissions or other inaccuracies in the publication list, please let us know.

Year Citation  Score
2008 Solorzano MZ, Ray WH. Multiplicity and Stability of Chemical Reactors with Evaporative Cooling Industrial & Engineering Chemistry Research. 47: 9025-9039. DOI: 10.1021/Ie800044B  0.355
2006 Novak A, Bobak M, Kosek J, Banaszak BJ, Lo D, Widya T, Ray WH, De Pablo JJ. Ethylene and 1-hexene sorption in LLDPE under typical gas-phase reactor conditions: Experiments Journal of Applied Polymer Science. 100: 1124-1136. DOI: 10.1002/App.23508  0.668
2005 Lo DP, Ray WH. Kinetic modeling and prediction of polymer properties for ethylene polymerization over nickel diimine catalysts Industrial and Engineering Chemistry Research. 44: 5932-5949. DOI: 10.1021/Ie040197U  0.769
2005 Wells GJ, Ray WH. Mixing effects on performance and stability of low-density polyethylene reactors Aiche Journal. 51: 3205-3218. DOI: 10.1002/Aic.10544  0.381
2005 Wells GJ, Ray WH. Methodology for modeling detailed imperfect mixing effects in complex reactors Aiche Journal. 51: 1508-1520. DOI: 10.1002/Aic.10407  0.365
2004 Banaszak BJ, Lo D, Widya T, Ray WH, De Pablo JJ, Novak A, Kosek J. Ethylene and 1-hexene sorption in LLDPE under typical gas phase reactor conditions: A priori simulation and modeling for prediction of experimental observations Macromolecules. 37: 9139-9150. DOI: 10.1021/Ma0491107  0.664
2004 Ray WH, Soares JBP, Hutchinson RA. Polymerization reaction engineering: Past, present and future Macromolecular Symposia. 206: 1-13. DOI: 10.1002/Masy.200450201  0.351
2002 Zhang M, Ray WH. Modeling of “living” free-radical polymerization processes. II. Tubular reactors Journal of Applied Polymer Science. 86: 1047-1056. DOI: 10.1002/App.11052  0.457
2002 Zhang M, Ray WH. Modeling of “living” free‐radical polymerization processes. I. Batch, semibatch, and continuous tank reactors Journal of Applied Polymer Science. 86: 1630-1662. DOI: 10.1002/App.11051  0.444
2002 Zhang M, Ray WH. The value of fundamental modeling in the design and operation of controlled free radical polymerization processes Macromolecular Symposia. 182: 169-180. DOI: 10.1002/1521-3900(200206)182:1<169::Aid-Masy169>3.0.Co;2-5  0.318
2001 Zhang M, Ray WH. Modeling of “Living” Free-Radical Polymerization with RAFT Chemistry Industrial & Engineering Chemistry Research. 40: 4336-4352. DOI: 10.1021/Ie0009482  0.501
2001 Debling JA, Ray WH. Morphological development of impact polypropylene produced in gas phase with a TiCl4/MgCl2 catalyst Journal of Applied Polymer Science. 81: 3085-3106. DOI: 10.1002/App.1761  0.473
2001 Chakravarti S, Ray WH. Kinetic Study of Olefin Polymerization with a Supported Metallocene Catalyst. III. Ethylene Homopolymerization in Slurry Journal of Applied Polymer Science. 81: 2901-2917. DOI: 10.1002/App.1740  0.455
2001 Chakravarti S, Ray WH, Zhang SX. Kinetic study of olefin polymerization with a supported metallocene catalyst. IV. Comparison of bridged and unbridged catalyst in gas phase Journal of Applied Polymer Science. 81: 1451-1459. DOI: 10.1002/App.1571  0.42
2001 Wells GJ, Ray WH, Kosek J. Effects of catalyst activity profiles on polyethylene reactor dynamics Aiche Journal. 47: 2768-2780. DOI: 10.1002/Aic.690471215  0.34
2001 Yao Z, Ray WH. Modeling and analysis of new processes for polyester and nylon production Aiche Journal. 47: 401-412. DOI: 10.1002/Aic.690470216  0.354
2001 Xu ZG, Chakravarti S, Ray WH. Kinetic study of olefin polymerization with a supported metallocene catalyst. I. Ethylene/propylene copolymerization in gas phase Journal of Applied Polymer Science. 80: 81-114. DOI: 10.1002/1097-4628(20010404)80:1<81::Aid-App1078>3.0.Co;2-B  0.45
2001 Araujo O, Giudici R, Saldívar E, Ray WH. Modeling and experimental studies of emulsion copolymerization systems. I. Experimental results Journal of Applied Polymer Science. 79: 2360-2379. DOI: 10.1002/1097-4628(20010328)79:13<2360::Aid-App1045>3.0.Co;2-Q  0.425
2001 Beers KJ, Ray WH. A linkage moment approach to modeling condensation polymerization with multiple monomers. II. Extension to nonlinear polymers Journal of Applied Polymer Science. 79: 266-274. DOI: 10.1002/1097-4628(20010110)79:2<266::Aid-App70>3.0.Co;2-7  0.424
2001 Beers KJ, Ray WH. A linkage moment approach to modeling condensation polymerization with multiple monomers. I. Linear polymers Journal of Applied Polymer Science. 79: 246-265. DOI: 10.1002/1097-4628(20010110)79:2<246::Aid-App60>3.0.Co;2-E  0.46
2000 Ray WH, Villa CM. Nonlinear dynamics found in polymerization processes — a review Chemical Engineering Science. 55: 275-290. DOI: 10.1016/S0009-2509(99)00323-1  0.447
1999 Villa CM, Horn BLV, Ray WH. Dynamics of Polymerization Reactors with Evaporative Cooling and Wall Heat Transfer Polymer Reaction Engineering. 7: 151-194. DOI: 10.1080/10543414.1999.10744506  0.355
1999 Takeda M, Ray WH. Optimal-grade transition strategies for multistage polyolefin reactors Aiche Journal. 45: 1776-1793. DOI: 10.1002/Aic.690450813  0.378
1998 Saldícar E, Dafniotis P, Ray WH. Mathematical Modeling of Emulsion Copolymerization Reactors. I. Model Formulation and Application to Reactors Operating with Micellar Nucleation Journal of Macromolecular Science-Reviews in Macromolecular Chemistry and Physics. 38: 207-325. DOI: 10.1080/15583729808544528  0.452
1998 Read NK, Ray WH. Application of nonlinear dynamic analysis to the identification and control of nonlinear systems—III. n-Dimensional systems Journal of Process Control. 8: 35-46. DOI: 10.1016/S0959-1524(97)00023-1  0.334
1998 Read NK, Ray WH. Application of nonlinear dynamic analysis in the identification and control of nonlinear systems—II. More complex dynamics Journal of Process Control. 8: 17-34. DOI: 10.1016/S0959-1524(97)00022-X  0.338
1998 Villa CM, Dihora JO, Ray WH. Effects of imperfect mixing on low‐density polyethylene reactor dynamics Aiche Journal. 44: 1646-1656. DOI: 10.1002/Aic.690440716  0.396
1998 Mallon FK, Ray WH. Modeling of solid‐state polycondensation. II. Reactor design issues Journal of Applied Polymer Science. 69: 1775-1788. DOI: 10.1002/(Sici)1097-4628(19980829)69:9<1775::Aid-App12>3.0.Co;2-L  0.474
1998 Mallon FK, Ray WH. Modeling of solid‐state polycondensation. I. Particle models Journal of Applied Polymer Science. 69: 1233-1250. DOI: 10.1002/(Sici)1097-4628(19980808)69:6<1233::Aid-App19>3.0.Co;2-T  0.509
1998 Mallon FK, Ray WH. A comprehensive model for nylon melt equilibria and kinetics Journal of Applied Polymer Science. 69: 1213-1231. DOI: 10.1002/(Sici)1097-4628(19980808)69:6<1213::Aid-App18>3.0.Co;2-T  0.408
1998 Mallon FK, Ray WH. Enhancement of solid‐state polymerization with microwave energy Journal of Applied Polymer Science. 69: 1203-1212. DOI: 10.1002/(Sici)1097-4628(19980808)69:6<1203::Aid-App17>3.0.Co;2-T  0.378
1997 and SXZ, Ray WH. Modeling and Experimental Studies of Aqueous Suspension Polymerization Processes. 3. Mass-Transfer and Monomer Solubility Effects Industrial & Engineering Chemistry Research. 36: 1310-1321. DOI: 10.1021/Ie960537E  0.44
1997 and ES, Ray WH. Mathematical modeling of emulsion copolymerization reactors: Experimental validation and application to complex systems Industrial & Engineering Chemistry Research. 36: 1322-1336. DOI: 10.1021/Ie960464Z  0.369
1997 Zacca JJ, Debling JA, Ray WH. Reactor residence-time distribution effects on the multistage polymerization of olefins—II. Polymer properties: bimodal polypropylene and linear low-density polyethylene Chemical Engineering Science. 52: 1941-1967. DOI: 10.1016/S0009-2509(97)00026-2  0.425
1997 Debling JA, Zacca JJ, Ray WH. Reactor residence-time distribution effects on the multistage polymerization of olefins—III. Multi-layered products: impact polypropylene Chemical Engineering Science. 52: 1969-2001. DOI: 10.1016/S0009-2509(97)00025-0  0.397
1997 Saldívar E, Ray WH. Control of semicontinuous emulsion copolymerization reactors Aiche Journal. 43: 2021-2033. DOI: 10.1002/Aic.690430811  0.332
1997 Zhang SX, Ray WH. Modeling of imperfect mixing and its effects on polymer properties Aiche Journal. 43: 1265-1277. DOI: 10.1002/Aic.690430515  0.442
1997 Read NK, Zhang SX, Ray WH. Simulations of a LDPE reactor using computational fluid dynamics Aiche Journal. 43: 104-117. DOI: 10.1002/Aic.690430113  0.37
1997 Shaffer WKA, Ray WH. Polymerization of olefins through heterogeneous catalysis. XVIII. A kinetic explanation for unusual effects Journal of Applied Polymer Science. 65: 1053-1080. DOI: 10.1002/(Sici)1097-4628(19970808)65:6<1053::Aid-App2>3.0.Co;2-J  0.458
1996 Ochs S, Rosendorf P, Hyanek I, Zhang X, Ray WH. Dynamic flowsheet modeling of polymerization processes using POLYRED Computers & Chemical Engineering. 20: 657-663. DOI: 10.1016/0098-1354(95)00200-6  0.378
1996 Hipp AK, Ray WH. A dynamic model for condensation polymerization in tubular reactors Chemical Engineering Science. 51: 281-294. DOI: 10.1016/0009-2509(95)00250-2  0.441
1996 Zhang SX, Read NK, Ray WH. Runaway phenomena in low‐density polyethylene autoclave reactors Aiche Journal. 42: 2911-2925. DOI: 10.1002/Aic.690421019  0.415
1995 Hyanek I, Zacca J, Teymour F, Ray WH. Dynamics and stability of polymerization process flow sheets Industrial & Engineering Chemistry Research. 34: 3872-3877. DOI: 10.1021/Ie00038A026  0.361
1995 Debling JA, Ray WH. Heat and Mass Transfer Effects in Multistage Polymerization Processes: Impact Polypropylene Industrial & Engineering Chemistry Research. 34: 3466-3480. DOI: 10.1021/Ie00037A035  0.454
1995 Ray WH. Identification and control of distributed parameter systems by means of the singular value decomposition Chemical Engineering Science. 50: 1519-1539. DOI: 10.1016/0009-2509(95)00017-Y  0.347
1995 Semino D, Ray WH. Control of systems described by population balance equations—II. Emulsion polymerization with constrained control action Chemical Engineering Science. 50: 1825-1839. DOI: 10.1016/0009-2509(95)00015-W  0.32
1994 Scott GM, Ray WH. Using Knowledge-Based Neural Network Process Models for Model-Based Control Ifac Proceedings Volumes. 27: 389-394. DOI: 10.1016/S1474-6670(17)48182-1  0.302
1993 Kalfas G, Yuan H, Ray WH. Modeling and experimental studies of aqueous suspension polymerization processes. 2. Experiments in batch reactors Industrial & Engineering Chemistry Research. 32: 1831-1838. DOI: 10.1021/Ie00021A006  0.424
1993 Kalfas G, Ray WH. Modeling and experimental studies of aqueous suspension polymerization processes. 1. Modeling and simulations Industrial & Engineering Chemistry Research. 32: 1822-1830. DOI: 10.1021/Ie00021A005  0.43
1993 Scott GM, Ray WH. Experiences with model-based controllers based on neural network process models Journal of Process Control. 3: 179-196. DOI: 10.1016/0959-1524(93)80023-5  0.322
1993 Kaspar MH, Ray WH. Dynamic PLS modelling for process control Chemical Engineering Science. 48: 3447-3461. DOI: 10.1016/0009-2509(93)85001-6  0.338
1993 Zacca JJ, Ray WH. Modelling of the liquid phase polymerization of olefins in loop reactors Chemical Engineering Science. 48: 3743-3765. DOI: 10.1016/0009-2509(93)80218-F  0.418
1993 Jaber IA, Ray WH. Polymerization of olefins through heterogeneous catalysis. XIV. The influence of temperature in the solution copolymerization of ethylene Journal of Applied Polymer Science. 50: 201-215. DOI: 10.1002/App.1993.070500203  0.348
1992 Ray WH. Modeling and Control of Polymerization Reactors Ifac Proceedings Volumes. 25: 37-46. DOI: 10.1016/S1474-6670(17)50967-2  0.355
1992 Windes LC, Ray WH. A control scheme for packed bed reactors having a changing catalyst activity profile. II: On-line optimizing control Journal of Process Control. 2: 43-53. DOI: 10.1016/0959-1524(92)80016-Q  0.371
1992 Windes LC, Ray WH. A control scheme for packed bed reactors having a changing catalyst activity profile. I: On-line parameter estimation and feedback control Journal of Process Control. 2: 23-42. DOI: 10.1016/0959-1524(92)80015-P  0.36
1990 Sauer BB, Stock RS, Lim K, Ray WH. Polymer latex particle size measurement through high speed dielectric spectroscopy Journal of Applied Polymer Science. 39: 2419-2441. DOI: 10.1002/App.1990.070391116  0.335
1989 Schwedock MJ, Windes LC, Ray WH. Steady State And Dynamic Modelling Of A Packed Bed Reactor For The Partial Oxidation Of Methanol To Formaldehyde Ii. Experimental Results Compared With Model Predictions Chemical Engineering Communications. 78: 45-71. DOI: 10.1080/00986448908940186  0.38
1989 Windes LC, Schwedock MJ, Ray WH. Steady State And Dynamic Modelling Of A Packed Bed Reactor For The Partial Oxidation Of Methanol To Formaldehyde I. Model Development Chemical Engineering Communications. 78: 1-43. DOI: 10.1080/00986448908940185  0.407
1989 Windes LC, Cinar A, Ray WH. Dynamic estimation of temperature and concentration profiles in a packed bed reactor Chemical Engineering Science. 44: 2087-2106. DOI: 10.1016/0009-2509(89)85144-9  0.379
1989 Congalidis JP, Richards JR, Ray WH. Feedforward and feedback control of a solution copolymerization reactor Aiche Journal. 35: 891-907. DOI: 10.1002/Aic.690350603  0.424
1987 Yoon JS, Ray WH. Simple mechanistic model for the kinetics and catalyst activity decay of propylene polymerization over titanium trichloride catalyst with DEAC cocatalyst Industrial & Engineering Chemistry Research. 26: 415-422. DOI: 10.1021/Ie00063A003  0.349
1985 Choi K, Ray WH. Recent Developments in Transition Metal Catalyzed Olefin Polymerization–A Survey. I. Ethylene Polymerization Journal of Macromolecular Science-Reviews in Macromolecular Chemistry and Physics. 25: 1-55. DOI: 10.1080/07366578508079456  0.327
1985 Choi K, Ray WH. The Dynamic Behaviour Of Fluidized Bed Reactors For Solid Catalyzed Gas Phase Olefin Polymerization Chemical Engineering Science. 40: 2261-2279. DOI: 10.1016/0009-2509(85)85128-9  0.45
1982 Jensen KF, Ray W. A microscopic model for catalyst surfaces—II Chemical Engineering Science. 37: 1387-1410. DOI: 10.1016/0009-2509(82)85011-2  0.529
1982 Jensen KF, Ray W. The bifurcation behavior of tubular reactors Chemical Engineering Science. 37: 199-222. DOI: 10.1016/0009-2509(82)80155-3  0.535
1981 Schmidt AD, Ray WH. The dynamic behavior of continuous polymerization reactors-I. Isothermal solution polymerization in a CSTR Chemical Engineering Science. 36: 1401-1410. DOI: 10.1016/0009-2509(81)80174-1  0.402
1980 Ray WH. Dynamic Modelling of Polymerization Reactors Ifac Proceedings Volumes. 13: 587-595. DOI: 10.1016/S1474-6670(17)64984-X  0.394
1979 Soliman MA, Ray WH. Nonlinear state estimation of packed-bed tubular reactors Aiche Journal. 25: 718-720. DOI: 10.1002/Aic.690250420  0.618
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