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https://doi.org/10.21256/zhaw-5541| Publication type: | Article in scientific journal |
| Type of review: | Peer review (publication) |
| Title: | Real-time inline monitoring of zeolite synthesis by Photon Density Wave spectroscopy |
| Authors: | Häne, Janick Brühwiler, Dominik Ecker, Achim Hass, Roland |
| et. al: | No |
| DOI: | 10.21256/zhaw-5541 10.1016/j.micromeso.2019.109580 |
| Published in: | Microporous and Mesoporous Materials |
| Volume(Issue): | 288 |
| Issue: | 109580 |
| Issue Date: | 2019 |
| Publisher / Ed. Institution: | Elsevier |
| ISSN: | 1387-1811 |
| Language: | English |
| Subjects: | Photon density wave spectroscopy; Process analytical technology; Zeolite synthesis; Molar water content; Silica source |
| Subject (DDC): | 660: Chemical engineering |
| Abstract: | The formation process of zeolite A (Linde Type A) was monitored inline at 1.5 L scale by Photon Density Wave (PDW) spectroscopy as novel process analytical technology for highly turbid liquid suspensions. As a result, the reduced scattering coefficient, being a measure for particle number, size, and morphology, provides distinct process information, including the formation of amorphous particles and their transfer into crystalline zeolite structures. The onset and end of the crystallization process can be detected inline and in real-time. Analyses by powder X-ray diffraction and electron microscopy, based on a sampling approach, support the interpretation of the results obtained by PDW spectroscopy. In addition, the influence of the molar water content was investigated, indicating a linear increase of the time needed to reach the end of the zeolite A crystallization with increasing molar water content. Further experiments indicate a strong influence of the silica source on the course of the crystallization. The applicability of PDW spectroscopy under even more demanding chemical and physical conditions was investigated by monitoring the synthesis of zeolite L (Linde Type L). |
| URI: | https://digitalcollection.zhaw.ch/handle/11475/17518 |
| Fulltext version: | Published version |
| License (according to publishing contract): | CC BY-NC-ND 4.0: Attribution - Non commercial - No derivatives 4.0 International |
| Departement: | Life Sciences and Facility Management |
| Organisational Unit: | Institute of Chemistry and Biotechnology (ICBT) |
| Appears in collections: | Publikationen Life Sciences und Facility Management |
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| File | Description | Size | Format | |
|---|---|---|---|---|
| 2019_Haene_Real-time_inline_monitoring_of_zeolite_synthesis.pdf | published PDF | 1.26 MB | Adobe PDF |  View/Open |
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Häne, J., Brühwiler, D., Ecker, A., & Hass, R. (2019). Real-time inline monitoring of zeolite synthesis by Photon Density Wave spectroscopy. Microporous and Mesoporous Materials, 288(109580). https://doi.org/10.21256/zhaw-5541
Häne, J. et al. (2019) ‘Real-time inline monitoring of zeolite synthesis by Photon Density Wave spectroscopy’, Microporous and Mesoporous Materials, 288(109580). Available at: https://doi.org/10.21256/zhaw-5541.
J. Häne, D. Brühwiler, A. Ecker, and R. Hass, “Real-time inline monitoring of zeolite synthesis by Photon Density Wave spectroscopy,” Microporous and Mesoporous Materials, vol. 288, no. 109580, 2019, doi: 10.21256/zhaw-5541.
HÄNE, Janick, Dominik BRÜHWILER, Achim ECKER und Roland HASS, 2019. Real-time inline monitoring of zeolite synthesis by Photon Density Wave spectroscopy. Microporous and Mesoporous Materials. 2019. Bd. 288, Nr. 109580. DOI 10.21256/zhaw-5541
Häne, Janick, Dominik Brühwiler, Achim Ecker, and Roland Hass. 2019. “Real-Time Inline Monitoring of Zeolite Synthesis by Photon Density Wave Spectroscopy.” Microporous and Mesoporous Materials 288 (109580). https://doi.org/10.21256/zhaw-5541.
Häne, Janick, et al. “Real-Time Inline Monitoring of Zeolite Synthesis by Photon Density Wave Spectroscopy.” Microporous and Mesoporous Materials, vol. 288, no. 109580, 2019, https://doi.org/10.21256/zhaw-5541.
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