Impact and attrition shear breakage of enzyme granules and placebo particles-application to particle design and formulation

Powder Technology

Volumn 149, Issue 2-3, 2005, Pages 157-167

  Jørgensen, Kåre ^a   Bach, Poul ^b   Jensen, Anker D ^a  

^a TECHNICAL UNIVERSITY OF DENMARK   (Denmark)

^b NOVOZYMES A S   (Denmark)

Author keywords

Breakage; Design; Enzyme granules; Formulation; Impact; Shear

Indexed keywords

COMPUTER SIMULATION; DETERGENTS; ENZYMES; FRICTION; GRANULAR MATERIALS; IMPACT RESISTANCE; PARTICLES (PARTICULATE MATTER); SHEAR STRESS; STRAIN;

ATTRITION SHEAR CELL (ASC); BREAKAGE RESISTANCE; IMPACT VELOCITIES; SHEAR RESISTANCE;

ENZYME KINETICS;

ENZYME; INORGANIC SALT; PLACEBO;

ENZYME; POWDER;

ARTICLE; ENZYME ACTIVATION; FRICTION; PARTICLE SIZE; SHEAR STRENGTH; SHEAR STRESS; SOLUBILITY; STRESS STRAIN RELATIONSHIP; SURFACE PROPERTY; VELOCITY;

EID: 12444258727     PISSN: 00325910     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.powtec.2004.11.018     Document Type: Article

References (28)

1. J.E. Gwyn On the particle size distribution function and the attrition of cracking catalysts AIChE J. 15 1969 35 39
2. C. Couroyer, and M. Ghadiri Attrition of catalyst carrier beads-a relationship between single particle properties and bulk behaviour The International Conference on Powder and Bulk Solids Handling, Organised by IMechE, 13-15 June, London, UK 2000
3. C. Couroyer, M. Ghadiri, P. Laval, N. Brunard, and F. Kolenda Methodology for investigating the mechanical strength of reforming catalyst beads Oil Gas Sci. Technol.-Rev. IFP 55 2000 67 85
4. R. Schuhmann Energy input and size distribution in comminution Trans. AIME 217 1960 21 26
5. N. Arbiter, C.C. Harris, and G.A. Stamboltzis Single fracture of brittle spheres Trans. AIME 244 1969 118 133
6. K. Schönert Role of fracture physics in understanding comminution phenomena Trans. AIME 252 1972 21 26
7. K. Schönert The influence of particle bed configurations and confinements on particle breakage Int. J. Miner. Process. 44-45 1996 1 16
8. L.X. Liu, D. Golchert, N.W. Page, D. Page, and J.D. Litster Strength and attrition resistance of agglomerates and particulate coatings Powder Technol. 130 2003 415 420
9. A.D. Salman, J. Fu, D.A. Gorham, and M.J. Hounslow Impact breakage of fertiliser granules Powder Technol. 130 2003 359 367
10. A.D. Salman, C.A. Biggs, J. Fu, I. Angyal, M. Szabó, and M.J. Hounslow An experimental investigation of particle fragmentation using single particle impact studies Powder Technol. 128 2002 36 46
11. R. Pitchumani, G.M.H. Meesters, and B. Scarlett Breakage behaviour of enzyme granules in a repeated impact test Powder Technol. 130 2003 421 427
12. A. Samini, M. Ghadiri, R. Boerefijn, A. Groot, and R. Kohlus Effect of structural characteristics on impact breakage of agglomerates Powder Technol. 130 2003 428 435
13. W.J. Beekman, G.M.H. Meesters, T. Becker, A. Gaertner, M. Gebert, and B. Scarlett Failure mechanism determination for industrial granules using a repeated compression test Powder Technol. 130 2003 367 376
14. M.L.H. Flindt Pulmonary disease due to inhalation of derivatives of Bacillus subtilis containing proteolytic enzymes Lancet 1 1969 1177 1181
15. M. Vanhanen, Exposure, sensitization and allergy to industrial enzymes, People and work research reports 46, Finnish Institute of Occupational Health, Department of Pulmology, Helsinki University Central Hospital, Helsinki, Finland, 2001, ISBN 951-802-453-7.
16. C.R. Bemrose, and J. Bridgwater A review of attrition and attrition test methods Powder Technol. 49 1987 97 126
17. Australia's National Industrial Chemicals Notification and Assessment Scheme (NICNAS), http://www.nicnas.gov.au/publications/CAR/PEC/PEC2/PEC2c.pdf, May 2003.
18. Heubach GmbH, http://www.heubachinternational.de, May 2003.
19. W.J. Beekman, Measurement of the mechanical strength of granules and agglomerates, PhD thesis, Technische Universiteit Delft, The Netherlands (2000).
20. A.U. Neil, and J. Bridgwater Attrition of particulate solids under shear Powder Technol. 80 1994 207 219
21. B.K. Paramanathan, and J. Bridgwater Attrition of solids-I, cell development Chem. Eng. Sci. 38 1983 197 206
22. K.H. Roscoe The influence of strains in soil mechanics Géotechnique 20 1970 129 170
23. M. Ghadiri, Z. Ning, S.J. Kenter, and E. Puik Attrition of granular solids in a shear cell Chem. Eng. Sci. 55 2000 5445 5456
24. K.R. Yuregir, M. Ghadiri, and R. Clift Observations on impact attrition of granular solids Powder Technol. 49 1986 53 57
25. W.J. Beekman, G.M.H. Meesters, B. Scarlett, and T. Becker Measurement of granule attrition and fatigue in a vibrating box Part. Part. Syst. Char. 19 2002 5 11
26. B. Scarlett, W.J. Beekman, G.M.H. Meesters, and R. Pitchumani Particles-their strengths and weaknesses Key Eng. Mater. 230-232 2002 203 212
27. A.D. Salman, G.K. Reynolds, and M.J. Hounslow Particle impact breakage in particulate processing KONA 21 2003 88 99
28. M. Ghadiri, and Z. Zhang Impact attrition of particulate solids. Part 1: A theoretical model of chipping Chem. Eng. Sci. 57 2002 3659 3669