Publications

Book Chapters

1. S.M. Al-Salem and P. Lettieri (2010) "On the pyrolysis of polymers as a petrochemical feedstock recovery route" Chapter in "Chemistry and Chemical Engineering Research Progress", Edited by A.K. Haghi, Nova Science Publishers, New York. ISBN 978-1-61668-502-7. 
   


2. P. Lettieri and S.M. Al-Salem and (2010) "Thermo-Chemical Treatment of Plastic Solid Waste (PSW)" Chapter in "A Handbook of Waste Management and Recycling”, Edited by T. Letcher and D. Vallero, Elsevier Publishers. Being Edited.
   


3. L.Mazzei and P. Lettieri (2010) "Modelling of Fluidized Bed Suspensions” Chapter in "Principles of Particle and Powder Technology”, Edited by J. Baeyens, After Kluwer Academic Press. Being Edited.
   


4. P. Lettieri, L. Yassin, S.J.R Simons (2009) "Advanced thermal treatment of composite wastes for energy recovery" Chapter in "Management, recycling and reuse of waste composites", Edited by V. Goodship, Woodhead Publishing, Cambridge, p. 152-191. 
   


5. P. Lettieri (2007) “An introduction to particle systems” Chapter in "Concepts of Chemical Engineering 4 Chemists", Edited by S.J.R. Simons, Royal Society of Chemistry Publishing, Cambridge, p. 203-248, ISBN-13:978-0-85404-951-6.
   


6. P. Lettieri and T. Elson (2007) “An introduction to heat transfer” Chapter in "Concepts of Chemical Engineering 4 Chemists",  Edited by S.J.R. Simons, Royal Society of Chemistry Publishing, Cambridge, p.96-138, ISBN-13:978-0-85404-951-6.

Journal Publications (Reverse Chronological Order)

1. L. Mazzei, D. Marchisio, P. Lettieri (2010) "Direct quadrature method of moments for the mixing of inert polydisperse fluidized powders and the role of numerical diffusion" In Press Ind. Eng. Chem. Res.
2. L. Mazzei, A. Casillo, P. Lettieri and P. Salatino (2010) "CFD simulations of segregating fluidized bidisperse mixtures of particles differing in size" In Press Chemical Engineering Journal.
3. S.M. Al-Salem, P. Lettieri (2010) "Kinetic study of high density polyethylene (HDPE) pyrolysis" In Press Chemical Engineering Research and Design.
4. S.M. Al-Salem, P. Lettieri and J. Baeyens (2010) "The Valorization of plastic solid waste (PSW) by primary to quaternary routes: From Re-Use to Energy and Chemicals" (a review). Progress in Energy and Combustion Science 36, 103-139. 
5. S.M. Al-Salem, P. Lettieri and J. Baeyens (2009) "Recycling and recovery routes of plastic solid waste (PSW): a review." Waste Management 29 (10) 2625-2643.
6. P. Lettieri and L.Mazzei (2009) "Challenges and issues on the CFD modelling of fluidized beds: a review" Journal of Computational Multiphase Flow Vol.1 (2) 83-131.
7. S.M. Al-Salem, P. Lettieri and J. Baeyens (2009) "Kinetics and product distribution of end of life tyres (ELTs) pyrolysis: A novel approach in polyisoprene and SBR thermal cracking". J. Haz. Mat. 172, 1690-1694.
8. S.M. Al-Salem and P. Lettieri (2009) "Life Cycle Assessment (LCA) of municipal solid waste management in the state of Kuwait". European J of Scientific Research 34 (3) 395-405.
9. L. Yassin, P. Lettieri, S.J.R. Simons, A. Germana’ (2009) "Techno-economic performance of energy-from-waste fluidized bed combustion and gasification processes in the UK context". Chem. Eng. J. 146, 315-327.
10. A. Castillo-Castillo, M. Leach, L. Yassin, P. Lettieri, S.J.R. Simons, C. Ryu , J. Swithenbank, V. Sharifi (2009) "Combustion and gasification scales in future waste management strategies" Waste and Resource Management, 162 (3) 151-168.
11. L.Yassin, P. Lettieri, S.J.R. Simons,A. Castillo-Castillo, M. Leach, C. Ryu , J. Swithenbank, V. Sharifi (2009) "From traditional incineration to more advanced fluidized bed gasification technology for the thermal processinf of waste". Waste and Resource Management 162 (3) 169-177.
12. A. Colafigli, L. Mazzei, P. Lettieri, L. Gibilaro (2009) "Apparent viscosity measurements in a homogeneous fluidized bed"  Chem. Eng. Sci. 64, 144-152.
13. L. Mazzei and P. Lettieri (2008) "CFD simulations of expanding/contracting homogeneous fluidized beds and their transition to bubbling". Chem. Eng. Sci. 63, 5831-5847.
14. O. Owoyemi and P. Lettieri (2008) "CFD Modelling and validation of Bi-disperse fluidized industrial powders." Ind. & Eng. Chem. Res. 47 (16) 6316-6326.
15. O. Owoyemi and P. Lettieri (2008) “Stability analysis and CFD validation of a new fluid-particle interaction force for mono-component gas-solid fluidized beds” Powder Technology 183 (1) 27-36.
16. P. Lettieri and L. Mazzei (2008) “Analysis of the fluid-bed stability of FCC catalysts at high temperature through considerations on the bed elasticity” China Particuology 6 (1) 30-37.
17. O. Owoyemi, L. Mazzei, P. Lettieri (2007) “CFD modelling of binary fluidized suspensions and investigation of the role of particle-particle drag on mixing and segregation” AIChE J. 53 (8) 1924-1940.
18. G. Bruni, P. Lettieri, D. Newton, D. Barletta, (2007) “An investigation of the effect of the interparticle forces on the fluidization behaviour of fine powders linked with rheological studies” Chem. Eng. Sci. 62, 387-396.
19. G. Bruni, D. Barletta, M. Poletto, P. Lettieri (2007) “A rheological model for the flowability of fine aerated powders” Chem. Eng. Sci. 62, 397-407.
20. T.H. Druitt, G. Avard, G. Bruni, P. Lettieri, F. Maez (2007) “Gas retention in fine-grained  pyroclastic flow materials at high temperature” Bulletin of Volcanology doi:10.1007/s00445-007-0116-7.
21. L. Yassin, P. Lettieri, S.J.R. Simons, A. Germana’ (2007) “A study of the process design and flue gas treatment of an industrial-scale energy from waste combustion plant”.  Ind. & Eng. Chem. Res. 46 (8) 2648-2656
22. L. Mazzei and P. Lettieri (2007) “A drag force closure for uniformly-dispersed dense fluidized suspensions”. Chem. Eng. Sci. 62 (22) 6129-6142.
23. P. Lettieri, R. Ocone, J. Baeyens, J.G. Yates, J.P.K. Seville, C. Davies, P. Salatino, M.O. Coppens, Y. Ding, U. Tuzun (2007) “From A,B,C,D to novel applications in Fluidization Technology…a tribute to Professor D. Geldart. ”In Press Powder Technology.
24. L. Mazzei, P. Lettieri, T. Elson, D. Colman (2006) “A revised mono-dimensional Particle-bed model for fluidized beds.” Chem. Eng. Sci. 61 (6) 1958-1972.
25. G. Bruni, P. Lettieri, D. Newton, J.G. Yates (2006) “The influence of fines size distribution on the behaviour of gas fluidized beds at high temperature” Powder Technology 163, 88-97.
26. L. Mazzei and P. Lettieri (2006) “A numerical algorithm for the analysis of the bubble dynamics in two-dimensional fluidized beds simulated by means of CFD multiphase flow codes” IJCRE 4 (A26),1-20.
27. P. Lettieri, R. Di Felice, R. Pacciani, O. Owoyemi (2006) “CFD Modelling of a liquid fluidized bed in slugging mode” Powder Technology 167, 94-103.
28. G. Bruni, A. Colafigli, P. Lettieri, T. Elson (2005) “Torque measurements in aerated powders using a mechanically stirred fluidized bed rheometer (msFBR)” Chem. Eng. Res. Des. 83(A11): 1311-1318.
29. L. Yassin, P. Lettieri, S.J.R. Simons, A. Germana’ (2005) “Energy recovery from thermal processing of waste: a review” Engineering Sustainability Journal, 158, Issue ES2, 97-103.
30. O. Owoyemi, P. Lettieri, R. Place (2005) “Experimental validation of Eulerian-Eulerian simulations of rutile industrial powders.” Ind. & Eng. Chem. Res. 44 (26), 9996-10004.
31. T.H. Druitt, G. Bruni, P. Lettieri, J.G. Yates, (2004) “The fluidization behaviour of ignimbrite at high temperature and with mechanical agitation” Geophysical Research Letters, 31, L02604, doi:10.1029/2003GL018593.
32. P. Lettieri, G. Saccone, L. Cammarata, (2004) “Predicting the Transition from Bubbling to Slugging Fluidization using CFD” Chem. Eng. Res. Des., 82 (A8) 939-944.
33. J.G. Yates, D. Cheesman, P. Lettieri, D. Newton (2003) “X-ray analysis of fluidized beds and other multiphase systems” KONA Powder and Particle, 20, 133-143. 
34. P. Lettieri, L. Cammarata, G. Micale, J. Yates (2003a) “Computational Fluid-dynamics simulations of gas fluidized beds using different Eulerian modelling approaches”. IJCRE, Vol. 1, article A5, 1-21. 
35. L. Cammarata, P. Lettieri, G. Micale, D. Colman, (2003b) “2D and 3D CFD simulations of bubbling fluidized beds using Eulerian-Eulerian models” IJCRE, Vol.1, A48, 1-19.
36. P. Lettieri, J.G. Yates and D. Newton (2002) “Homogeneous bed expansion of FCC catalysts, influence of temperature on the Richardson-Zaki index n and on the particle terminal fall velocity.” Powder Technology, 123, 221-231.
37. G. Bruni, A. Marzocchella, R. Solimene, P. Salatino, J.G. Yates, P. Lettieri, M. Fiorentino (2002) “Self-segregation of high-volatile fuel particles during devolatilization in a fluidized bed reactor”. Powder Technology, 128, 11-21.
38. P. Lettieri, D. Newton and J.G. Yates (2001) “High temperature effect on the dense phase properties of gas fluidized beds”. Powder Technology, 120, 34-40. 
39. P. Lettieri, S. Brandani, D. Newton and J.G. Yates (2001) “A generalization of the Foscolo and Gibilaro particle-bed model particle to predict the fluid bed stability of some fresh FCC catalysts at elevated temperatures” Chem. Eng. Sci., 56, 5401-5412.
40. P. Lettieri, J.G. Yates and D. Newton (2000) "The influence of interparticle forces on the fluidization behaviour of some industrial materials at high temperature." Powder Technology, 110, 117-127. 
41. P. Lettieri, D. Newton and J.G. Yates (1999) "On the fluidization behaviour of some industrial catalysts at high temperature: The effect of interparticle forces." AIChE Symposium Series, 321, 100-105.
42. P. Lettieri, J.G. Yates and D. Newton (1999) “Experimental observations of fluidized beds at high temperatures.” Eurasian Chem. Tech. Journal, 1, 9-16.

Refereed Conference Papers

1. S.M. Al-Salem and P. Lettieri (2010) "Kinetics of Polyethylene Terephthalate (PET) and Polystyrene (PS) Dynamic Pyrolysis In. Proc. WASET ICEESD 2010 (Int. Conf. on Energy, Environment and sustainable Development), Paris, France.
2. C. Patel, P.Lettieri, S.J.R. Simons, A. Germana' (2010) "Techno-economic performance analysis of small to medium scale biomass combustion plants for energy production". In Proc. 25th International Conference on Solid Waste Technology and Management, Philadelphia, USA.
3. L. Mazzei, D.L. Marchisio and P. Lettieri (2010) "CFD simulations of the dynamics of inert polydisperse fluidized suspensions using QMOM and DQMOM". In Proc. 13th International Conference on Fluidization, Korea. 
4. A. Abiola, E.S. Fraga, P. Lettieri (2010) "Multi-objective design for the consequential life cycle assessment of corn-ethanol production" In Proc. ESCAPE 20, Ischia, Italy. 
5. S.M. Al-Salem, P. Lettieri and J. Baeyens (2009) "Thermal Treatment of different grades and types of polyethylene wasted articles" In. Proc. 8th World Congress of Chemical Engineering, Montreal, Canada, paper 1734, 1-4.
6. L. Mazzei, P. Lettieri and D.L. Marchisio (2009) "CFD simulations of the mixing of inert polydisperse fluidized suspensions using QMOM and DQMOM". In Proc. 8th World Congress of Chemical Engineering, Montreal, Canada, paper 1691, 1-4.
7. S.M. Al-Salem, P. Lettieri and J. Baeyens (2009) "The thermal pyrolysis of high density polyethylene (HDPE). In Proc. of the 9th European Gasification Conference: Clean Energy and Chemicals". Dusseldorf, Germany.
8. S.M. Al-Salem and P. Lettieri (2009) "Output analysis of using mathematical modelling (IWM-2 Model) for municipal solid waste management in the State of Kuwait: a life cycle inventory of polymeric based waste". In Proc. of the 2nd Kuwait Waste Management Conference,Kuwait City, Kuwait.
9. G. Bruni, I. Tomasetta, D. Barletta, M. Poletto, P.Lettieri (2009) "Sensitivity analysis on a rheological model for the flowability measurement of aerated fine powders." In Proc. 9th Int. Conference on Chemical and Process Engineering (ICheaP-9), Rome, Italy.
10. A. Abiola, E.S. Fraga, P. Lettieri (2008) "Sustainability assessment of ethanol production." In Proc. of the World Renewable Energy Congress, WREC X, paper BM50, ISBN: 978 008 056 8973.
11. L. Mazzei, P. Lettieri & D.L. Marchisio (2008). "CFD simulation of polydisperse fluidized beds using the direct quadrature method of moments." In Proc. of the 10th International Conference on Particulate Systems Analysis. Stratford-upon-Avon, UK.
12. L. Mazzei, P. Lettieri & D.L. Marchisio, (2008) "Investigation into the dynamics of polydisperse fluidized beds by using the direct quadrature method of moments." In Proc. of the 11th International Conference on Multiphase Flow in Industrial Plants. Palermo, Italy.
13. L. Mazzei and P. Lettieri (2007) “A two-dimensional fluid dynamic model for the CFD simulations of gas-fluidized beds”. Fluidization XII, Vancouver, Canada, 687-694.
14. L. Yassin, P. Lettieri, S. Simons, A. Germana’ (2007) “Thermal Conversion of Biomass and Waste”  Fluidization XII, Vancouver, Canada, 905-912.
15. O. Owoyemi, P. Lettieri (2007) “A CFD study into the influence o the particle-particle drag force on the dynamics of binary gas solid fluidized beds” Fluidization XII, Vancouver, Canada, 695-702.
16. L. Yassin, P. Lettieri, S. Simons, A. Germanà. (2006). Energy Recovery from Waste: A Case Study.CIWM, Paignton, UK.
17. O. Owoyemi and P. Lettieri, (2006) “A hydrodynamic model for the simulation of binary gas-particle systems in gas fluidized beds”. 10th International Conference on Multiphase Flow in Industrial Plants, Tropea, Italy, 1-12. 
18. L. Mazzei and P. Lettieri (2006) “A study of Fluidization Dynamics by means of CFD” 10th International Conference on Multiphase Flow in Industrial Plants, Tropea, Italy, 1-7.
19. L. Mazzei, P. Lettieri, T. Elson, D. Colman (2006) “A study of the dynamics of homogeneous and bubbling fluidized beds by means of computational fluid dynamics” 5th World Congress on Particle Technology, Orlando. 
20. O. Owoyemi and P. Lettieri, (2006) “A mathematical model for the simulation of binary gas fluidized beds”. 5th World Congress on Particle Technology, Orlando. 
21. G. Bruni, P. Lettieri, D. Barletta, M. Poletto (2006) “A study of the effect of fines size distribution on the fluidization and rheological behaviour of alumina powders” 5th World Congress on Particle Technology, Orlando.
22. L. Yassin, P. Lettieri, S.J.R. Simons, A. Germana’ (2006) "Thermal processing of municipal solid waste." Int. Conf. on Fluidized Bed Combustion, Vienna, Austria. 
23. L. Mazzei, P. Lettieri, T. Elson, D. Colman (2005) “A study of the stability and dynamics of gas fluidized beds using a revised particle bed model” 9th International Conference on Particulate Systems Analysis, Stratford-upon-Avon, paper 21, 1-6. 
24. L. Yassin, P. Lettieri, S.J.R. Simons, A. Germana’ (2005) “Process design of an energy from waste combustion plane.” 9th international Conference on Particulate Systems Analysis, Stratford-upon-Avon, paper 8, 1-5.
25. O. Owoyemi, P. Lettieri, R. Place (2005) “Computational simulations of industrial powders: A validation Study”. 9th International Conference on Particulate Systems Analysis, Stratford-upon-Avon, paper 29, 1-6.
26. G. Bruni, P. Lettieri, J.G. Yates, D. Newton (2005) “Rheological studies of aerated solid materials”. 9th International Conference on Particulate Systems Analysis, Stratford-upon-Avon, paper 38, 1-5.
27. G. Bruni, P. Lettieri, J.G. Yates, D.Newton (2005) “The effect of process conditions on the fluidization behaviour of gas-fluidized beds”. 7th World Congress of Chemical Engineering, Glasgow, paper P45-031, 1-10.
28. O. Owoyemi, L. Cammarata, P. Lettieri, D. Colman (2005) “Analysis of different drag models for the CFD simulation of bubbling gas fluidized beds”. 7th World Congress of Chemical Engineering, Glasgow, paper P45-011, 1-10.
29. L. Yassin, P. Lettieri, S.R.J. Simons, A. Germana’ (2005) “Appropriate scales and technologies for energy recovery by thermal processing of waste in the urban environment”. 7th World Congress of Chemical Engineering, Glasgow, paper C8-002, 1-10.
30. P. Lettieri, R. Pacciani, R. Di Felice, O. Owoyemi (2004) “CFD Modelling of a liquid fluidized bed in slugging mode”. 9th International Conference on Multiphase Flow in Industrial Plants, Rome, Italy, 274-285.
31. G. Bruni, P. Lettieri, T. Elson, J.G. Yates (2004) “A preliminary investigation into a mechanically stirred fluidized bed rheometer”. 9th International Conference on Multiphase Flow in Industrial Plants, Rome, Italy, 298-309.
32. P. Lettieri, G. Saccone, L. Cammarata, (2004) “Predicting the Transition from Bubbling to Slugging Fluidization using CFD” Fluidization XI, Ischia, Italy, 123-130.
    
33. P. Lettieri, L. Cammarata, G. Micale, D. Colman (2004) “CFD modelling of gas fluidized beds across transition regimes”. Partec, Nuremberg, Germany, paper 309. 
34. G. Bruni, P. Lettieri, J.G. Yates, D. Newton (2004) “Some preliminary results on the effect of fines on the fluidization behaviour ” Partec , Nuremberg, Germany, paper 135.
35. P. Lettieri, G. Micale, L. Cammarata, D. Colman (2002) “Computational Fluid-dynamics simulations of gas fluidized beds: comparison of different modelling approaches”. 10th Workshop of Two-phase Flow Predictions, Merseburg, Germany, 300-309.
36. G. Micale, A. Scuzzarella, P. Lettieri, F. Grisafi, A Brucato (2002) “CFD simulations of solids suspension in stirred vessels with dense particle effects”. VIII International Conference on Multiphase Flow in Industrial Plants, Alba, Italy, 468-484.
37. P. Lettieri, D. Newton, J.G. Yates (2001) “Characterization of the fluidization behaviour of solid materials at high temperature” 6th World Congress of Chemical Engineering, Melbourne, Australia, 1-9.
38. P. Lettieri, D. Newton and J.G. Yates (2000) “High temperature effect on the dense phase properties of gas fluidized beds”. Plenary Lecture, III European Conference on Fluidization, Toulouse, France, 89-96. 
39. P. Lettieri (2000) “The effect of hydrodynamic forces on the deaeration of some FCC catalysts with increasing temperature in a gas fluidised bed”. VII International Conference on Multiphase Flow in Industrial Plants, Bologna, Italy, 79-90.
40. Fiorentino, M., P. Lettieri, G.B. Smith and D. Newton (1999) “On the relevance of process conditions in the fluidized bed scale up.” IV Italian Conference on Chemical and Process Engineering (ICheaP-4), Florence, Italy, 869-872. 
41. P. Lettieri, D. Newton, J.G. Yates and G.B. Smith (1998) "Some preliminary results on the effect of process temperature on the fluidization of some industrial materials.” Fluidization IX, Durango, Colorado, USA, Eds. L.S. Fan and T.M. Knowlton, 109-116.
42. P. Lettieri, D. Newton and J.G. Yates (1998) "The role of the interparticle forces on the fluidization behaviour of some industrial materials at high temperature." Advanced Technologies for Particle Processing, AIChE annual meeting, Miami, Florida, USA, vol. 2, 3-8.
43. P. Lettieri, D. Newton and J.G. Yates (1998) "The effect of temperature on the deaeration of two silica powders. Comparison with standard correlations for a Group A and a Group C material." World Congress on Particle Technology 3, IChemE, Brighton, UK, paper 214.
44. P. Lettieri, D. Newton, J.G. Yates and G.B. Smith (1997) "Characterization of fluidizable materials at high temperatures and pressures.” 1997 Jubilee Research Event, IChemE, Nottingham, UK, 1205-1208.