| 43153 |
Creator |
c3baa1aae2495d9fcf383c433b46bfe0 |
| 43153 |
Creator |
ext-b0c1c1f364c9a44cb727a9bb03d9504b |
| 43153 |
Creator |
ext-54c6ab82d88f5ab8d77028ffa762ab30 |
| 43153 |
Creator |
ext-797656b56d1d9dc47e94986d82f68895 |
| 43153 |
Creator |
ext-8a5d1a4ae6865703cfbcf4f4b8288f7f |
| 43153 |
Date |
2014-06-13 |
| 43153 |
Is Part Of |
repository |
| 43153 |
Is Part Of |
p16742001 |
| 43153 |
abstract |
In this work typical mechanical properties for a catalyst support material, ZSM5 (a
spray-dried granular zeolite), have been measured in order to relate the bulk behaviour
of the powder material to the single particle mechanical properties. Particle shape
and size distribution of the powders, determined by laser diffraction and scanning
electron microscopy (SEM), confirmed the spherical shape of the spray-dried particles.
The excellent flowability of the material was assessed by typical methods such as
the Hausner ratio and the Carr index. This was confirmed by bulk measurements of the
particle–particle internal friction parameter and flow function using a Schulze shear
cell, which also illustrated the low compressibility of the material. Single particle
compression was used to characterize single particle mechanical proper-ties such as
reduced elastic modulus and strength from Hertz contact mechanics theory. Comparison
with surface properties obtained from nanoindentation suggests heterogeneity, the
surface being harder than the core. In order to evaluate the relationship between
single particle mechanical properties and bulk compression behaviour, uniaxial confined
compression was carried out. It was determined that the Adams model was suitable for
describing the bulk compression and furthermore that the Adams model parameter, apparent
strength of single particles, was in good agreement with the single particle strength
determined from single particle compression test. |
| 43153 |
authorList |
authors |
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status |
peerReviewed |
| 43153 |
uri |
http://data.open.ac.uk/oro/document/348638 |
| 43153 |
uri |
http://data.open.ac.uk/oro/document/348639 |
| 43153 |
uri |
http://data.open.ac.uk/oro/document/348640 |
| 43153 |
uri |
http://data.open.ac.uk/oro/document/348641 |
| 43153 |
uri |
http://data.open.ac.uk/oro/document/348642 |
| 43153 |
uri |
http://data.open.ac.uk/oro/document/348643 |
| 43153 |
uri |
http://data.open.ac.uk/oro/document/348889 |
| 43153 |
volume |
14 |
| 43153 |
type |
AcademicArticle |
| 43153 |
type |
Article |
| 43153 |
label |
Marigo, M.; Cairns, D. L.; Bowen, J. ; Ingram, A. and Stitt, E. H. (2014). Relationship
between single and bulk mechanical properties for zeolite ZSM5 spray-dried particles.
Particuology, 14 pp. 130–138. |
| 43153 |
label |
Marigo, M.; Cairns, D. L.; Bowen, J. ; Ingram, A. and Stitt, E. H. (2014). Relationship
between single and bulk mechanical properties for zeolite ZSM5 spray-dried particles.
Particuology, 14 pp. 130–138. |
| 43153 |
Title |
Relationship between single and bulk mechanical properties for zeolite ZSM5 spray-dried
particles |
| 43153 |
in dataset |
oro |