Professor Emeritus
Former Canada Research Chair in Clean Energy Processes
Fluidization, Reactor Design, Fluid-Particle Systems, Biomass, Coal, Combustion, Two-Phase Flow, Fluid
Education
University of Western Ontario, 2003, D.Sc. (Hon.)
Cambridge University, 1968, Ph.D. Chemical Engineering
University of Western Ontario, 1965, B.E.Sc.
Research Interests

Dr. Grace’s primary research interests are concerned with fluidized bed reactors and related multi-phase systems. Fluidized beds are used for a wide variety of chemical and physical purposes, for example in catalytic, gas-solid and three-phase reactors, drying, coating and thermal treatment.

Working closely with graduate students, fellow faculty members and other research associates, Dr. Grace has investigated a wide range of problems which are fundamental in nature, but which have practical application. Some of the topics studied in the recent past include transient forces on immersed tubes, heat transfer in circulating fluidized beds, hydrodynamics and mixing in high velocity beds, effects of particle size distribution, reactor modelling, scale-up issues, attrition, electrostatics, non-uniformity of flow through parallel channels, computational fluid dynamics, comparison of alternative techniques for voidage and velocity measurements, and dispersion and inversion phenomena in liquid-fluidized beds. Applications studied include fluidized bed combustion and gasification of biomass and coal, a novel process for steam reforming of natural gas to make pure hydrogen, and greenhouse gas capture. While most work is on gas-solid fluidization, some work is also done on spouted beds and on liquid-solid and gas-liquid-solid fluidized beds. Many of the projects are motivated by direct industrial interest. The research is funded by government and by industrial sources.

The U.B.C. group has unique facilities for the study of fluidization. For example, the group operates a pilot-scale circulating fluidized bed gasification unit in which both fundamental and applied data have been obtained. There are also a number of other units of different scales and a wide variety of related equipment for characterizing particles and obtaining in-bed measurements.

Dr. Grace is also involved, often in collaboration with researchers from other departments and industry, in the factors leading to the spread of brominated and fluorinated compounds in the environment, improvement in the properties of perm-selective membranes, removal of contaminants from waste streams, mixing in the pulp and paper industry, and development of unique clay resources of British Columbia.

Publications

J.R. Grace Publications, 2012- June 2015

  1. Xu WJ, Li LY and Grace JR, Regeneration of natural Bear River clinoptilolite used to remove Zn from acid mine drainage in a slurry bubble column, Applied Clay Sciences, 55, 83-87 (2012).
  2. Li TW, Grace JR, Bi HT, Reid K and Wormsbecker M, Numerical investigation of Fluid CokingÔ units, Part I: Hydrodynamics of a scaled cold flow model, Can. J. Chem. Eng., 90(2), 442-456 (2012).
  3. Li TW, Grace JR, Bi HT, Reid K and Wormsbecker M, Numerical investigation of Fluid CokingÔ units, Part II: Modelling of feed vaporization, Can. J. Chem. Eng.,90(2), 457-471 (2012).
  4. Yenjaichon W, Grace JR, Lim CJ and Bennington C, In-line jet mixing of liquid-pulp fibre suspensions: Effect of concentration and velocities, Chem. Eng. Sci., 75, 167-176 (2012).
  5. Zhang LF, Hou J, Bi XT, Grace JR, Janke T and Arato C, Electrostatic beneficiation of fly ash in a free-falling separation system, Particuology, 10, 154-160 (2012).
  6. Vashisth S and Grace JR, Simulation of granular transport of Geldart type A, B and D particles through a 90° elbow, Ind. Eng. Chem. Res., 51, 2030-2047 (2012).
  7. Abo-Ghander N, Logist F, Grace JR, van Impe JFM, Elnashaie SSEH and Lim CJ, Comparison of diffusion models in the modelling of a catalytic membrane fixed bed reactor coupling dehydrogen-ation of ethylbenzene with hydrogenation of nitrobenzene, Computers & Chem. Engng, 38, 11-23 (2012).
  8. Fan CG, Bi XT, Grace JR and Goto Y, Grid zone performance of a fluidized bed through analysis of local solids holdup signals, Powder Technol., 219, 37-44 (2012).
  9. Gorgy TA, Li LY, Grace JR and Ikonomou MG, An exploratory investigation on the mobility of polybrominated diphenyl ethers (PBDEs) in biosolids-amended soil, Water, Soil & Water Pollution, 223, 2297-2309 (2012).
  10. Xiao G, Grace JR and Lim CJ, Limestone particle attrition in high-velocity air jets, Ind. Eng. Chem. Res., 51(1), 556-560 (2012).
  11. Li BL, Danon-Shaffer MN, Li LY, Ikonomou MG and Grace JR,   Occurrence of PFCs and PBDEs in landfill leachates from across Canada, Water, Air & Soil Pollution, 223, 3365-3372 (2012).
  12. Zhang LF, Hou JT, Bi XT, Grace JR, Janke T and Arato C, Fluidization characteristics and charging behavior of fly ash in a vibro-fluidized bed, Powder Technol. 215, 235-241 (2012).
  13. Moughrabiah WO, Grace JR and Bi XT, Electrostatics in gas-solid fluidized beds for different particle properties, Chem, Eng. Sci., 75, 198-208 (2012).
  14. Jalalinejad F, Bi XT and Grace JR, Effect of electrostatic charges on a single bubble in gas-sold fluidized beds, Int. J. Multiphase Flow, 44, 15-28 (2012).
  15. Vivacqua V, Vashisth S, Hébrard G, Grace JR and Epstein N, Characterization of fluidized bed layer inversion in a 191-mm-diameter column using both experimental and CPFD approaches, Chem. Eng. Sci., 80, 419-428 (2012).
  16. Dai J, Cui HP and Grace JR, Biomass feeding for thermochemical reactors, Progr. Energy & Combustion Science, 38, 716-736 (2012).
  17. Ellis N, Lim CJ, Reyes PA, Soletti JI and Grace JR, Acoustic emissions method for solids mass flux measurement, Proc. 21st International Fluidized Bed Combustion Conf., pp. 681-688 (2012).
  18. Benskin J, Li B, Ikonomou MG, Grace JR and Li LY, Per- and polyfluoroalkyl substances: patterns, tome trends, sources, Envir. Sci. & Technol. 46, 11532-11540 (2012).
  19. Talukdar S, Banthia N and Grace JR, Carbonation in concrete infrastructure in the context of global climate change: Part 1, Experimental results and model development, Cement & Concrete Composites, 34(8), 924-930 (2012).
  20. Talukdar S, Banthia N, Grace JR and Cohen S,  Carbonation in concrete infrastructure in the context of global climate change: Part 2: Canadian urban simulations, Cement & Concrete Composites,34(8), 931-935 (2012).
  21. VIgneault A. Grace JR and Elnashaie SSEH, Simulation of a compact multi-channel membrane reactor for the production of pure hydrogen via steam methane reforming, Chem. Eng. & Technol. 35(8), 1520-1533 (2012).
  22. Yenjaichon W, Grace JR and Lim CJ, Gas dispersion in horizontal pulp-fibre-suspension flow, Int. J. Multiphase Flow, 49, 49-57 (2013).
  23. Gorgy T, Li LY, Grace JR and Ikonomou MG, Migration of polybrominated diphenyl ethers in biosolids-amended soil, Envir. Pollution, 172, 124-130 (2013).
  24. Danon-Schaffer M., Machecha-Botero A, Grace JR, Transfer of PBDEs from e-waste to aqueous media, Sci Total Environment, 447, 458-471 (2013).
  25. Dubrawski K, Tebianian S, Bi HT, Chaouki J, Ellis N, Gerspacher R, Jafari R, Kantsas A, Lim CJ, Patience GS, Pugsley T, QI MZ, Zhu JX and Grace JR, Traveling column for comparison of invasive and non-invasive fluidization voidage measurement techniques, Powder Technol, 235, 203-220 (2013).
  26. Tannous K, Lam PS. Sokhansanj S and Grace JR, Physical properties for flow characterization of ground biomass from Douglas-fir wood, Particulate Sci, & Technol., 31, 291-300 (2013).
  27. Yenjaichon W, Grace JR, Lim CJ and Bennington CJ, Gas dispersion in pulp-suspension flow in the presence of an in-line mechanical mixer, Chem. Eng. Sci., 93, 22-31 (2013).
  28. Nagahashi Y, Yamamoto D, Grace JR and Asako Y, Forces on horizontal tubes of non-circular cross-section, in Fluidization, ed. J.A.M. Kuipers, R.F. Mudde, J.R. van Ommen and N.G. Dean, pp. 607-614 (2013).
  29. Danon-Schaffer M., Machecha-Botero A, Grace JR, Mass balance evaluation of polybrominated diethyl ethers in landfill leachate and potential for transfer from e-waste, Sci. Total Environment, 461-462, 290-301 (2013).
  30. Grace JR and Lim CJ, Properties of circulating fluidized beds (CFB) relevant to combustion and gasification systems, Chapter 4 in Fluidized bed technologies for near-zero emission combustion and gasification, ed. F. Scala, Woodhead Publishing, pp.147-176, 2013.
  31. Rim GH, Jeong CH, Bae JW, Lee Y, Lee DH, Epstein N, Grace JR and Kim SD, Prediction of layer inversion velocity in three-phase fluidized beds, Chem. Eng. Sci., 100, 91-97 (2013).
  32. Yenjaichon W, Grace JR, Lim CJ and Bennington C, In-line jet mixing of liquid-pulp-fiber suspensions, AIChE Journal, 59(3), 1420-1430 (2013).
  33. Yenjaichon W, Grace JR, Lim CJ and Bennington CJ, Characterization of gas mixing in water and pulp-suspension flow based on electrical resistance tomography, Chem, Eng, Journal, 214, 285-297 (2013).
  34. Xu N, Ryi S, Li AW, Grace JR, Lim CH and Boyd T, Improved pre-treatment of porous stainless steel substrate for preparation of Pd-based composite membrane, Can.J.Chem.Eng. 91, 1695-1701 (2013).
  35. Habibi R, Kopyscinski J, Masnadi M, Lam J, Grace JR, Mims C and Hill, J, Co-gasification of biomass and non-biomass feedstocks: synergistic and inhibition effects of switchgrasss with sub-bituminous coal and fluid coke during CO2 gasification, Energy & Fuels, 27, 494-500 (2013).
  36. Yenjaichon W, Grace JR, Lim CJ and Bennington CJ, Pilot scale examination of mixing liquid into pulp fiber suspensions in the presence of an in-line mechanical mixer, Ind. Eng. Chem. Res, 52(1), 485-498 (2013).
  37. Vivacqua V, Xu WJ, Hébrard G, Li LY and Grace JR, Modelling of zinc adsorption into clinoptilolite in a slurry bubble column, Chem. Eng. Sci., 100, 326-331 (2013).
  38. Vivacqua V, Vashisth S, Prams A, Hébrard G, Epstein N and Grace JR, Experimental and CPFD study of axial and radial liquid mixing in water-fluidized beds of two solids exhibiting layer inversion, Chem. Eng. Sci., 95, 119-127 (2013).
  39. Zhong WQ, Chen X, Grace JR, Epstein N and Jin BS, Intelligent prediction of minimum spouting velocity of spouted bed by back propagation neural network, Powder Technol, 247,197-203 (2013).
  40. Chen ZW, Lim CJ and Grace JR, Stability of slot-rectangular spouted beds with multiple slots, Can. J. Chem. Eng., 91, 1768-1775 (2013).
  41. Liu XJ, Shao YJ, Zhong WQ, Grace JR, Epstein N and Jin BS, Prediction of minimum spouting velocity by CFD-TFM approach development, Can. J. Chem. Eng., 91, 1800-1808 (2013).
  42. Zhong WQ, Liu XJ, Grace JR, Epstein N, Ren B and Jin BS. Prediction of minimum spouting velocity by CFD-TFM: Scale-up, Can. J. Chem. Eng., 91, 1809-1814 (2013).
  43. Xu WJ, Li LY, Grace JR and Hébrard G, Acid rock drainage treatment by clinoptilolite with slurry bubble column: Sustainable zinc removal with regeneration of clinoptilolite, Applied Clay Science, 80-81, 31-37 (2013).
  44. Masnadi MS, Habibi R, Kopyscinski J, Hill JM, Bi XT, Lim CJ, Ellis N and Grace JR, Fuel characterization and co-pyrolysis kinetics of biomass and fossil fuels, Fuel, 117, 1204-1214 (2014).
  45. Hejazi B, Grace JR, Bi, XT and Mahecha-Botero A., Steam gasification of biomass coupled with lime-based CO2 capture in a dual fluidized bed reactor: a modelling study, Fuel, 117, 1256-1266 (2014).
  46. Mahecha-Botero A, Li TW, Haseidl S, Nguyen A and Grace JR, Experimental and computational fluid dynamic study of the change of volumetric flow in fluidized-bed reactors, Chem. Eng. Sci., 106, 231-241 (2014)
  47. He C, Bi XT and Grace JR, Contact electrification of a novel dual-material probe with charged particulate flow, Powder Technol., 253, 1-9 (2014).
  48. Basinas P, Wu Y, Grammelis P, Anthony EJ, Grace JR and Lim CJ, Effect of pressure and gas concentration on CO2 and SO2 capture performance of limestones, Fuel, 122, 236-246 (2014).
  49. Abo-Ghander N, Logist F, van Impe JFM, Grace JR and Lim CJ, Heterogeneous modeling of an autothermal membrane reactor coupling dehydrogenation of ethylbenzene to styrene with hydrogenation of nitrobenzene to aniline: Fickian diffusion model, Chem. Eng. & Proc., 77, 50-65 (2014).
  50. Tebianian S, Ahmadi Motlagh AH, Vashisth S, Cocco RA, Ellis N, Hays R, Karri SBR and Grace JR, Extending the comparison of voidage measurement and modeling techniques in fluidized beds, in Circulating Fluidized Bed Technology 11, ed. J Li, F Wei and XJ Bao, Chemistry Industry Press, Beijing, pp. 137-142 (2014).
  51. Alsmari T, Grace JR and Bi XT, Interactions among pressure, electrostatics and particle entrainment in gas-solid fluidized beds, in Circulating Fluidized Bed Technology 11, ed. J Li, F Wei and XJ Bao, Chemistry Industry Press, Beijing, pp. 175-180 (2014).
  52. He C, Bi XT and Grace JR, Dual-material probe measurement of electrostatic charges and hydrodynamics in gas-solid fluidized beds, in Circulating Fluidized Bed Technology 11, ed. J Li, F Wei and XJ Bao, Chemistry Industry Press, Beijing, pp. 183-188 (2014).
  53. Danon-Schaffer MN, Grace JR and Ikonomou MG, Investigation of PBDEs in landfill leachates from across Canada, Environmental Management and Sustainable Development, 3, 74-97 (2014)
  54. Butler J, Grace JR and Lim CJ, Kinetics of CO2 absorption by CaO through pressure swing cycling, Fuel, 127, 78-87 (2014).
  55. Rim GH; Kim JK; Lee DH, Grace JR and Epstein N, Data and models for liquid velocity and liquid holdup at layer inversion point in a three-phase fluidized bed of binary solids, Chem. Eng. Sci., 109, 82-84 (2014).
  56. Chen YM, Mahecha-Botero A, Lim CJ, Grace JR, Zhang JY, Zhao YC and Zheng CG, Hydrogen production in a sorption-enhanced fluidized bed membrane reactor: Operating parameter investigation, Ind. Eng. Chem. Research, 53, 6230-6242 (2014).
  57. Jimenez M, Dietrich N, Grace JR and Hébrard G, Oxygen mass transfer and hydrodynamic behaviour in wastewater: determination of local impact of surfactants by visualization techniques, Water Research, 58, 111-121 (2014).
  58. Xu N, Kim SS, Li AW, Grace JR, Lim CJ and Boyd T, Preparation and characterization of palladium-ruthenium composite membrane on alumina-modified PSS substrate, Can.J.Chem.Eng., 92, 1041-1047 (2014).
  59. Talukdar S, Banthia N, Grace JR and Cohen S, Climate change induced carbonation of concrete infrastructure, Construction Materials, 167(3), 140-150 (2014).
  60. Xu WJ, Li LY and Grace JR, Dealumination of clinoptilolite and its effect on zinc removal from acid rock drainage, Chemosphere, 111, 427-433 (2014)..
  61. Yenjaichon W, Grace JR, Lim CJ and Kerekes RJ, Mixing quality in low-consistency fibre suspensions downstream of an in-line mechanical mixer measured by electrical resistance tomography, Nordic Pulp and Paper Research Journal, 29(3), 392-400 (2014).
  62. Ahmadi Motlagh AH, Grace JR, Salcudean M and Hrenya C, New structure-based model for Eulerian simulation of hydrodynamics in gas-solid fluidized beds of Geldart group “A” particles, Chem Eng Sci, 120, 22-36 (2014).
  63. Knight A, Ellis N, Grace JR and Lim CJ, CO2 sorbent attrition testing for fluidized bed systems, Powder Technology, 266, 412-423 (2014).
  64. Gang X, Grace JR and Lim CJ, Evolution of limestone particle size distribution in an air-jet attrition apparatus, Ind. Eng. Chem. Research, 53, 15845-15851 (2014).
  65. Yu MM, Masnadi MS, Grace JR, Bi XT, Lim CJ and Li YH, Co-gasification of biosolids with biomass: thermogravimetric analysis and pilot scale study in a bubbling fluidized bed reactor, Bioresource Technol., 175, 51-58 (2015).
  66. Saayman J, Aumann M, Grace JR, Lim CJ, Reyes-Ramirez P, Hinrichsen O, Ellis N, Hydrodynamics of lime-based pellets in a dual fluidized bed and the effect of temperature, Chem. Eng. J. , 260, 532-540 (2015).
  67. He C, Bi XT and Grace JR, Simultaneous measurements of particle charge density and bubble properties in gas-fluidized beds by dual-tip electrostatic probes, Chem. Eng. Sci., 123, 11-21 (2015).
  68. Alsmari TA, Grace JR and Bi XT, Effects of superficial gas velocity and temperature on entrainment and electrostatics in gas-solid fluidized beds, Chem. Eng. Sci., 123, 49-56 (2015).
  69. Kim M, Li LY and Grace JR, Selecting reliable physicochemical properties of perfluoroalkyl and polyfluoroalkyl substances (PFASs) based on molecular descriptors, Envir. Pollution, 196, 462-472 (2015).
  70. Braga MB, Wang ZL, Grace JR, Lim CJ and Rocha SCS, Slot-rectangular spouted bed: Hydrodynamic stability and effects of operating conditions on drying performance, Drying Technol. 33(2), 216-226 (2015).
  71. Vigneault A and Grace JR, Hydrogen production in multi-channel membrane via steam-methane reforming and methane catalytic combustion, Int. J. Hydrogen Energy, 40, 233-243 (2015).
  72. Masnadi MS, Grace JR, Bi XT, Ellis N, Lim CJ and Butler JW, From fossil fuels towards renewables: Inhibitory and catalytic effects on carbon thermochemical conversion during co-gasification of biomass with fossil fuel, Applied Energy, 140, 196-209 (2015).
  73. Jalalinejad F, Bi XT and Grace JR, Effect of electrostatics on interaction of bubble pairs in a fluidized bed, Adv. Powder Technol, 70, 104-112 (2015).
  74. Masnadi MS, Grace JR, Bi XT, Lim CJ, Watkinson AP and Li YH, Single fuel steam gasification of switchgrass and coal in a bubbling fluidized bed: a comprehensive parametric reference for co-gasification study, Energy, 80, 133-147 (2015).
  75. Tebianian S, Dubrawski K, Ellis N, Cocco R, Hayes R, Karri SBR, Leadbeater TW, Parker DJ, Chaouki J, Jafari R, Garcia-Trinanes P, Seville JPK and Grace JR, Investigation of particle velocity in FCC gas-fluidized beds based on different measurement techniques, Chem. Eng. Sci., 127, 310-322 (2015).
  76. Jalalinejad F, Bi XT and Grace JR, Effect of electrostatics on freely-bubbling beds of mono-sized particles, Int. J. Multiph. Flow, 70, 104-112 (2015).
  77. Talukdar S, Banthia N and Grace JR, Modeling the effects of structural cracking on carbonation front advance into concrete, Int. J. Structural Engng., 6(1), 73-87 (2015).
  78. Li B, Li LY and Grace JR, Adsorption and hydraulic conductivity of landfill-leachate perfluorinated compounds in bentonite barrier mixtures, J. Envir. Management, 156, 236-243 (2015).
  79. Kim SS, Xu N, Li AW, Grace JR, Lim CJ and Ryi SK, Development of a new porous metal substrate based on nickel and its application for Pd-based composite membranes, Int. J. Hydrogen Energy, 40(8), 3520-3527 (2015).
  80. Zhang LF, Bi XT and Grace JR, Measurement of electrostatic charging of powder mixtures in a free-fall test device, Procedia Engng. 102, 295-304 (2015).
  81. Vashisth S, Ahmadi-Motlagh, AH, Tebianian S, Salcudean M and Grace JR, Comparison of numerical approaches to model FCC particles in gas-solid bubbling fluidized bed, Chem. Eng. Sci., 134, 269-286 (2015).
  82. Chen Y, Grace JR, Lim CJ, Zhang J, Zhao Y, Zheng C, Characterization of pressure fluctuations from a gas-solid fluidized bed by structure density function analysis, Chem. Eng. Sci., 129, 156-167 (2015).
  83. Masnadi MS, Grace JR, Bi XT, Ellis N, Lim CJ and Butler JW, Biomass/coal steam co-gasification integrated with in situ CO­2 capture, Energy, 83, 326-336 (2015).
  84. Liang C, Grace JR, Shen L, Yu                                      an G, Chen X and Zhao C, Experimental investigation of pressure letdown flow characteristics in dense-phase pneumatic conveying at high pressure, Powder Technol. 277, 171-180 (2015).
  85. Grace JR, Fluidized bed catalytic reactors, Chapter 4 in Multiphase Catalytic Reactors: Theory, Design, Manufacturing and Applications, ed. Onsan ZI and Avci AK, Wiley, New York, in press.
  86. Xu N, Kim SS, Li AW, Grace JR, Lim CJ and Boyd T, Novel electroless plating of ruthenium for fabrication of palladium-ruthenium composite membrane on PSS substrate and its characterization, J. Membrane Sci. & Research, in press.
  87. Butler JS and Grace JR, High-pressure systems and processes for calcium looping, Chap. 16 in Calcium and Chemical Looping Technology for Power Generation and Carbon Dioxide Capture, Ed. Fennel P and Anthony EJ, Woodhead Publishing. In press.
  88. He C, Bi XT and Grace JR, A novel dual-material probe for in-situ measurement of particle charge densities in gas-solid fluidized beds, Particuology, in press.
  89. Abbasi M, Grace JR, Soude-Gharebagh R, Zhargami R and Moustofi N, Numerical comparison of gas-liquid bubble columns and gas-solid fluidized beds, Can.J.Chem.Eng., in press.
  90. Dai J, Saayman J, Grace JR and Ellis N, Gasification of woody biomass, Ann. Rev. Chem. Biomol. Eng., in press.
  91. Kim M, Li LY, Grace JR, Benskin J and Ikonomou MG, Compositional effects on leaching of stain-guarded (perfluoroalkyl and polyfluoroalkyl substance-treated) carpet in landfill leachate, Envir. Sci. & Technol., in press.
  92. Saidi M, Wang Z, Grace JR and Lim CJ, Numerical and experimental investigation of    hydrodynamic characteristics of a slot-rectangular spouted bed, Can.J.Chem.Eng., in press.
  93. Masnadi MS, Grace JR, Bi XT, Watkinson AP, Ellis N, Li YH and Lim CJ, From coal towards renewables: catalytic/synergistic effects during steam co-gasification of switchgrass and coal in a pilot-scale bubbling fluidized bed reactor, Renewable Energy, in press.
  94. Saldarriaga JF, Grace JR, Lim CJ, Wang ZL, Xu N, Atxutegi A, Aguado R and Olazar, M, Bed-to-surface heat transfer in conical spouted beds of biomass-sand mixtures, Powder Technol., in press.
  95. He C, Bi XT and Grace JR, Decoupling electrostatic signals from gas-solids bubbling fluidized beds, Powder Technol., in press.

Previous Publications not Picked Up by Google Scholar

  • Constantineau JP, Bouffard SC, Grace JR, Richards GG and Lim CJ, Demonstration of the conditions conducive to agglomeration of zinc calcine in fluidized bed roasters, Minerals Engng. 24(13), 1409-1420 (2011).
  • Gorgy T, Li LY, Grace JR and Ikonomou MG, Polybrominated diphenyl ethers mobility in biosolids-amended soils using leaching column tests, Water, Air & Soil Pollution, 222(1-4), 77-90 (2011).
  • Grace JR and Lim CJ, Scale-up, slot-rectangular and multiple spouting, Chapter 17 in Spouted and Spout-Fluid Beds, ed. N. Epstein and J.R. Grace, Cambridge University Press, Cambridge, U.K., pp. 286-299, 2011.
  • Rakib MA, Grace JR and Lim CJ, Fluidized bed membrane reactor for steam reforming of higher hydrocarbons: model sensitivity, in Circulating Fluidized Bed Technology, Engineering Conferences International, New York, pp. 313-320 (2011).
  • Nagahashi Y, Grace JR, Epstein N, Asako Y and Yokogawa A, Fundamental study of washing characteristics of a novel multiphase flow system, J. Proc. Mech. Engng, 224, 223-231 (2010).
  • Kobayashi Y, Mori Y, Goto A, Bi HT and Grace JR, Heat transfer to immersed cooling tubes and particles in a fluidized bed reactor, Fluidization XIII, in Fluidization XIII, ed. S.D. Kim, Y. Kang, J.K. Lee and Y.C. Seo, Engineering Conferences International, Brooklyn, pp. 599-606, 2010.
  • Li TW, Grace JR and Bi, HT, Numerical investigation of gas mixing in gas-fluidized beds, AIChE Journal, 56(9), 2280-2296 (2010).
  • Oliveira WP, Grace JR, Lim CJ and Hodgson MR, Investigation of acoustic signals as a tool for characterizing spouted bed dynamics, Can.J.Chem.Eng., 87(2), 298-307 (2009).
  • Zhao, J, Lim CJ, Grace JR and Legros R, Nitric oxide formation and destruction in a CFB: two-zone model, in Circulating Fluidized Bed Technology IX, ed. J. Werther, W. Nowak, K-E. Wirth and E-U. Hartge, TuTech Innovation, Hamburg, Germany, pp. 559-564, 2008.
  • Escudié R, Epstein N, Grace JR and Bi HT, Volume contraction in liquid fluidization of binary solids mixtures, in Fluidization XII, ed. X.T. Bi, F. Berruti and T. Pugsley, United Engineering Conferences, Brooklyn, pp. 305-312, 2007.
  • Rusnell D, Grace JR, Bi HT, Lim CJ, Ronan P and McKnight CA, Improved transfer line entrance for stable high-flux solids flow, in Fluidization XII, ed. X.T. Bi, F. Berruti and T. Pugsley, United Engineering Conferences, Brooklyn, pp. 161-168, 2007.
  • Danon-Schaffer MN, Grace JR, Wenning RJ, Ikonomou MG and Luksemburg WJ, PBDEs in landfill leachate and potential for transfer from electronic waste, Organohalogen Compounds, 68, 1759-1762 (2006).
  • Gorgy T, Li LY and Grace JR, Fate and transport of polybrominated biphenyl ethers from biosolids, Proc. 5th International Congress on Environmental Geotechnics, ed. H.R. Thomas, Telford, Cardiff, Wales, UK, pp.1161-1168, 2006.
  • Watkinson AP, Li YH, Bi HT, Grace JR and Lim CJ, Formation of dioxins during combustion of salt-laden hog fuel, in Science in Thermal and Chemical Biomass Conversion, ed. Bridgwater AV and Boocock DGB, CPL Press, Newbury, UK, pp. 82-97, 2006.
  • Danon-Schaffer MN, Grace JR and Ikonomou M, Identifying sources of PBDEs in the Canadian Arctic, Organohalogen Compounds, 67, 513-517 (2005).
  • Grace JR and Abba IA, Recent progress in the modeling of fluidized-bed reactors, Proc. Industrial Fluidization South Africa, South African Inst. Mining & Metallurgy Symp. Ser. S42, pp. 3-22 (2005).
  • Gorgy T, Li LY, Grace JR and Ikonomou MG, Desorption of various  PBDE Congeners from Biosolids Amended Agricultural Soils, Organohalogen Compounds Volume 67 Ed. E. Reiner and M. Alaee, Toronto, 5 pp., 2005.
  • Li X, Adris AM, Lim CJ, Grace JR and Ellis N, Enhanced hydrogen production from circulating fluidized bed biomass gasification by double equilibrium shift, Circulating Fluidized Bed Technology VIII, ed. Cen K., International Academic Publishers, pp. 499-506, 2005.
  • Issangya AS, Grace JR and Zhu JX, Bottom and exit region solids hold-ups in circulating fluidized bed risers, Circulating Fluidized Bed Technology VIII, ed. Cen K., International Academic Publishers, pp. 209-215, 2005.
  • Song XQ, Bi HT, Lim CJ, Grace JR and Cui HP, Transient hydrodynamics in a circulating fluidized bed riser, Circulating Fluidized Bed Technology VIII, ed. Cen K., International Academic Publishers, pp. 68-74, 2005.
  • Stefanova A, Bi HT, Lim CJ and Grace JR, Heat transfer from a vertical tube in a turbulent fluidized bed, In Transport Phenomena in Science & Technology, Proc. 5th Symp. of South East European Countries, Sunny Beach, Bulgaria, ed. J. Hristov, pp. 95-108, 2005.
  • Mehrani P, Bi HT and Grace JR, Changes in electrostatic charges of fine particles after addition to gas-solid fluidized beds, in Recent Developments in Applied Electrostatics, ed. K Sun and G Yu, Elsevier, Oxford, pp. 25-28, 2004.
  • Donald A, Bi HT, Grace JR and Lim CJ, Penetration of single and multiple horizontal jets into fluidized beds, Fluidization XI, ed. U. Arena, R. Chirone, M. Miccio and P. Salatino, Engineering Conferences International, New York, pp. 171-178, 2004.
  • Muir JR, Brereton CMH, Grace JR and Lim CJ, Line-and sinker measurement of solids circulation rate in a CFB combustor, Fluidization XI, ed. U. Arena, R. Chirone, M. Miccio and P. Salatino, Engineering Conferences International, New York, pp. 315-322, 2004.
  • Xu J, Bao X, Wei W, Bi HT, Grace JR and Lim CJ, Flow regime recognition of spouted beds through mutual information function, Fluidization XI, ed. U. Arena, R. Chirone, M. Miccio and P. Salatino, Engineering Conferences International, New York, pp. 507-514, 2004.
  • Caffery G., Shook AA, Grace JR and Eltringham GA, An investigation of burner design for high-grade copper concentrate smelting, Copper 2003, Proc. 5th International Conf., Santiago, Chile, ed. G. Lagos, 2003.
  • Knapper B, Berruti F, Grace JR, Bi HT and Lim CJ, Hydrodynamic characterization of fluid bed cokers, in Circulating Fluidized Bed Technology VII, ed. Grace JR, Zhu J and deLasa HI, CSChE, Ottawa, pp. 263-270, 2002.
  • Liu J, Grace JR and Bi HT, Radial distribution of local particle velocity in a high-density circulating fluidized bed riser, in Circulating Fluidized Bed Technology VII, ed. Grace JR, Zhu J and deLasa H, CSChE, Ottawa, pp. 341-348, 2002.
  • Golriz MR and Grace JR, Predicting heat transfer in large-scale CFB boilers, in Circulating Fluidized Bed Technology VII, ed. Grace JR, Zhu J and deLasa HI, CSChE, Ottawa, pp. 121-128, 2002.
  • Constantineau JP, Grace JR, Richards GG and Lim CJ, Factors that influence particle size distribution in zinc fluidized bed roasters, In Sulphide Smelting 2002, ed. Stephens RL and Sohn HV, Minerals, Metals and Materials Society, pp. 405-419, 2002.
  • Laursen K, Duo W, Lim CJ and Grace JR, Sulfation and steam reactivation characteristics of limestones of worldwide origin, in Advances in Environmental Materials, ed. White T and Stegemann JA, MRS, Singapore, vol II, pp. 67-75, 2001.
  • Luo BL, Freitas LAP, Lim CJ and Grace JR, Flow characteristics of two-dimensional spouted beds with draft plates, Engng. Chem. & Met., 21, 369-374 (2000).
  • Chen A, Grace JR, Epstein N and Lim CJ, Steady state hydrodynamic model for continuous particle classification in a liquid fluidized bed, Fluidization X, ed. M. Kwauk, J. Li and W-C Yang, Engineering Foundation, pp. 413-420, 2001.
  • Keefe AR, Bert JL, Grace JR, Makaroff SJ, Lang BJ and Band PR, A Hierarchical Approach to Coding Chemical, Biological and Pharmaceutical Exposures, British Columbia Cancer Control Agency, Vancouver, 350 pages, 2000.  (ISBN 1-896624-07-3)
  • Liu J, Grace JR, Bi HT and Zhu J, Gas mixing in a high-density circulating fluidized bed riser, in Circulating Fluidized Bed Technology VI, ed. J. Werther, pp. 399-404, 1999.
  • Nagahashi Y, Grace JR, Lim KS and Asako Y, The mechanism of forces on tubes immersed in gas-fluidized beds, Proc. 3rd World Congress on Particle Technology, No. 218, Instn. Chem. Engrs., London, 1998.
  • Bai DR, Grace JR and Zhu J, An experimental method for distinguishing group C powders in Geldart’s classification, Proc. 3rd World Congress on Particle Technology, No. 221, Instn. Chem. Engrs., London, 1998.
  • Nagahashi Y, Asako Y, Grace JR and Lim KS, Buffeting forces in gas fluidized beds of large particles with tube banks, Proc. 35th National Heat Transfer Symp. of Japan, B225, 461-462, 1998.
  • Grace JR, Influence of riser geometry on particle and fluid dynamics of circulating fluidized beds, in Circulating Fluidized Bed Technology V, ed. M. Kwauk and J. Li, Science Press, Beijing, pp. 16-28, 1997.
  • Issangya AS, Bai D, Bi HT, Lim KS, Zhu J. and Grace JR, Axial solids holdup profiles in a high-density circulating fluidized bed riser, in Circulating Fluidized Bed Technology V, ed. M. Kwauk and J. Li, Science Press, Beijing, pp.60-65, 1997.
  • Lim KS, Zhou J, Finley C, Grace JR, Lim CJ and Brereton CMH, Cluster descending velocity at the wall of circulating fluidized bed risers, in Circulating Fluidized Bed Technology V, ed. M. Kwauk and J. Li, Science Press, Beijing, pp. 218-223 (1997).
  • Plate T, Band P, Bert J and Grace JR, Visualizing the function computed by a feedforward neural network, Proc. 4th Intern. Conf. on Neural Information Processing, ed. N. Kasabov, Springer Verlag, pp. 1-4, 1997.
  • Bai D, Bi HT and Grace JR, Dependence of chaotic behaviour of fluidized beds on experimental measurement methods, Proc. 1st Intern. Conf. on Fractal Concepts and Application of Chaos in Chemical Engineering Problems, Sept. 2-5, 1996, Rome, Italy.
  • Plate T, Band P, Bert J and Grace JR, A comparison between neural networks and other statistical techniques for modeling the relationship between tobacco and alcohol and cancer, in Advances in Neural Information Processing Systems 9, ed. M.C. Mozer, M.I. Jordan and T. Petsche, MIT Press, pp. 967-973, 1997.
  • Chen J, Brereton CMH, Lim CJ, Grace JR and Gennrich T, Performance testing of high temperature ceramic filters, in Advances in Filtration and Separation Technology, ed. S.K. Sharma, Amer. Filtration and Separation Soc., Kingwood, Texas, vol. 8, pp. 386-390 (1994).
  • Laytner F, Epstein N, Grace JR and Pinder KL, Kinetics of wood wafer drying, in Drying ’92, ed. AS Mujundar, Elsevier, Amsterdam, pp. 1135-1144 (1992).
  • Seville JPK, Legros R, Brereton CMH, Lim CJ and Grace JR, Performance of rigid ceramic filters for CFBC gas cleaning, Proc. 11th Internat Fluidized Bed Combustion Conference, ed EJ Anthony, Amer Soc Mech Engrs, New York, pp 279-286 (1991).
  • Bennington CPJ, Kerekes RJ and Grace JR, Mixing in pulp bleaching, in “A TAPPI Press Anthology”, ed. H. Jameel, TAPPI Press, Atlanta, pp. 752-761(1991).
  • Keefe A, Grace JR, Band PR, Bert JL, Teschke K, Svirchev LM and Spinelli JJ, A hierarchial coding system for occupational exposures, J. Occup.  Medicine, 33, 127-133 (1991).
  • Khoe GK, Ip TL and Grace JR, The influence of fine particles on the rheological and fluidization behaviour of powders, Proc Intern Conf on Measurement and Control of Granular Materials, Shenyang, China, 1988.
  • Bert JL, van Dusen LJ and Grace JR, A generalized model for the prediction of lead body burdens, Envir. Research, 48, 117-127 (1989).
  • Zhu J, Grace JR and Lim CJ, Erosion-causing particle impacts on tubes in fluidized beds, in Fluidization VI, ed. JR Grace, LW Shemilt and MA Bergougnou, Engineering Foundation, New York, 1989, pp 613-620.
  • Burkell JJ, Grace JR, Zhao J and Lim CJ, Measurement of solids circulation rates in circulating fluidized beds, in Circulating Fluidized Bed Technology II, ed. P Basu and JF Large, Pergamon, Oxford, 1988 pp 501-509.
  • Grace JR and Baeyans J, Experimental techniques, Chapter 13 in Gas Fluidization Technology, ed. D Geldart, John Wiley & Sons, New York, pp 419-464, 1986.
  • Grace JR, Fluidized bed heat transfer, Chapter 8.2 in Handbook of Multiphase Systems, ed. G. Hetsroni, Hemisphere Publishing Corporation, Washington, DC, 1981, 19 pages.
  • Piccinini N, Grace JR and Mathur KB, Vapour phase chemical reaction in spouted beds: verification of theory, Chem Eng Sci, 34, 1257-1263 (1979).
  • Grace JR, Fluidized bed reactor modeling: an overview, ACS Symposium Series, No 168, 1-18, 1981.
  • Varadi T and Grace JR, High pressure fluidization in a two-dimensional bed, in Fluidization, Proceedings 2nd Engineering Conference, ed. JF Davidson and DL Keairns, Cambridge University Press, pp 55-58, 1978.
  • George SE and Grace JR, Entrainment of particles from aggregative fluidized beds, AIChE Symposium Series, 74, No 176, 67-74 (1978).
  • Wairegi T, and Grace JR, Teardrop shapes for small bubbles and drops moving through Newtonian liquids, Nature, 248, 327-328 (1974).
  • Grace JR, Fluidization and its application to coal treatment and allied processes, A.I.Ch.E. Symp. Series, 70, No 141, 21-26 (1974).
  • Harrison D, and Grace JR, Fluidized beds with internal baffles, Chapter 13 in Fluidization, ed. J.F. Davidson and D. Harrison, Academic Press, 1971.
  • Grace JR, An evaluation of models for fluidized bed reactors, Chem. Eng. Progr. Symp. Series, 67, No 116, 159-167 (1971).
  • Grace JR and Harrison D, The distribution of bubbles within a gas-fluidized bed,Institution of Chemical Engineers Symp. Series, No 30, pp 105-113 (1968).
CHBE 251 Transport Phenomena I (Fluid Mechanics)
CHBE 344 Unit Operations I
CHBE 351 Transport Phenomena II (Heat/Mass Transfer)
CHBE 452 Environmental Process Design Project
CHBE 455 Kinetics and Reactor Design
CHBE 456 Heterogeneous Catalysis and Advanced Reactor Design
CHBE 550 Advanced Reactor Design
CHBE 559 Topics in Chemical Engineering
CHBE 561 Particulate and Multiphase Systems
APSC 261 Technology and Society
APSC 450 Professional Engineering Practice
Canadian Academy of Engineering, Fellow
Chemical Institute of Canada, Fellow
Engineering Institute of Canada, Fellow
Royal Society of Canada, Fellow
PAPRICAN, Faculty Associate
Professional Engineer, British Columbia