Compressive properties of micro-spherical SiO2 particles

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Compressive properties of micro-spherical SiO2 particles. / Hellsten, Niko; Karttunen, Antti; Engblom, Charlotta.

TMS2020 Proceedings. 2020.

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

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Hellsten, N, Karttunen, A & Engblom, C 2020, Compressive properties of micro-spherical SiO2 particles. in TMS2020 Proceedings. TMS Annual Meeting and Exhibition, San Diego, United States, 23/02/2020.

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@inproceedings{2927337eba3c4f42a72fac6f60ac3267,
title = "Compressive properties of micro-spherical SiO2 particles",
abstract = "Micron-sized, spherical SiO2 particles are important various industrial applications, such as in heterogeneous catalyst preparation. In particular, many of industrially relevant olefin polymerization catalysts are currently prepared using micro-spherical silica as catalyst support. In large-scale catalytic polyolefin production, the quality of the final product, as well as the process efficiency is crucially dependent on overall consistency, quality, physico-chemical properties of the catalyst. As the catalyst particle experiences various stresses during the polymer particle growth, mechanical properties of catalyst play a key role in its performance in the polymerization process. However, there is currently a lack of experimental mechanical property measurements of micron-sized, spherical SiO2 particles relevant for the polyolefin catalyst production.In this work, compressive properties of commercial porous micro-spherical silicas were studied using a quasi-static micro-compression method. The method includes compressing single, micron-sized particles in controlled loading conditions. From the measurements, the compressive elastic-plastic properties of these particles can be determined.",
keywords = "Micro-compression, micro-spherical silica, catalysts",
author = "Niko Hellsten and Antti Karttunen and Charlotta Engblom",
note = "T{\"a}m{\"a} on tulossa ulos Springerilt{\"a}. MUISTA KORJATA HOST PUBLICATION! Selvitett{\"a}v{\"a} sitten milloin FAMin saa avata. Tieto perustuu mailiposteihin Nikon kanssa. /MSo",
year = "2020",
language = "English",
booktitle = "TMS2020 Proceedings",

}

RIS - Download

TY - GEN

T1 - Compressive properties of micro-spherical SiO2 particles

AU - Hellsten, Niko

AU - Karttunen, Antti

AU - Engblom, Charlotta

N1 - Tämä on tulossa ulos Springeriltä. MUISTA KORJATA HOST PUBLICATION! Selvitettävä sitten milloin FAMin saa avata. Tieto perustuu mailiposteihin Nikon kanssa. /MSo

PY - 2020

Y1 - 2020

N2 - Micron-sized, spherical SiO2 particles are important various industrial applications, such as in heterogeneous catalyst preparation. In particular, many of industrially relevant olefin polymerization catalysts are currently prepared using micro-spherical silica as catalyst support. In large-scale catalytic polyolefin production, the quality of the final product, as well as the process efficiency is crucially dependent on overall consistency, quality, physico-chemical properties of the catalyst. As the catalyst particle experiences various stresses during the polymer particle growth, mechanical properties of catalyst play a key role in its performance in the polymerization process. However, there is currently a lack of experimental mechanical property measurements of micron-sized, spherical SiO2 particles relevant for the polyolefin catalyst production.In this work, compressive properties of commercial porous micro-spherical silicas were studied using a quasi-static micro-compression method. The method includes compressing single, micron-sized particles in controlled loading conditions. From the measurements, the compressive elastic-plastic properties of these particles can be determined.

AB - Micron-sized, spherical SiO2 particles are important various industrial applications, such as in heterogeneous catalyst preparation. In particular, many of industrially relevant olefin polymerization catalysts are currently prepared using micro-spherical silica as catalyst support. In large-scale catalytic polyolefin production, the quality of the final product, as well as the process efficiency is crucially dependent on overall consistency, quality, physico-chemical properties of the catalyst. As the catalyst particle experiences various stresses during the polymer particle growth, mechanical properties of catalyst play a key role in its performance in the polymerization process. However, there is currently a lack of experimental mechanical property measurements of micron-sized, spherical SiO2 particles relevant for the polyolefin catalyst production.In this work, compressive properties of commercial porous micro-spherical silicas were studied using a quasi-static micro-compression method. The method includes compressing single, micron-sized particles in controlled loading conditions. From the measurements, the compressive elastic-plastic properties of these particles can be determined.

KW - Micro-compression

KW - micro-spherical silica

KW - catalysts

M3 - Conference contribution

BT - TMS2020 Proceedings

ER -

ID: 38075019