Influence of Catalyst Characteristics on the Formation of MWCNT Agglomerates During the Synthesis in a Fluidized Bed Reactor Full article
| Journal |
Chemical Engineering Journal
ISSN: 1385-8947 , E-ISSN: 1873-3212 |
||||
|---|---|---|---|---|---|
| Output data | Year: 2022, Volume: 447, Article number : 137391, Pages count : 14 DOI: 10.1016/j.cej.2022.137391 | ||||
| Tags | Catalytic synthesis; Multi-walled carbon nanotubes; Fluidized-bed reactor; Agglomerates; Cohesion; Clumps of multi-walled carbon nanotubes; Flowability indicators | ||||
| Authors |
|
||||
| Affiliations |
|
Funding (2)
| 1 | Russian Foundation for Basic Research | 20-53-00031 |
| 2 | Belarusian Republican Foundation for Fundamental Research | Т20Р-349 |
Abstract:
The problem of the loss of homogeneous fluidization and the formation of large clumps of MWCNTs during their catalytic synthesis in a fluidized bed reactor has been studied experimentally and theoretically in terms of the impact of catalyst properties and synthesis process parameters. It has been shown that two factors play the most important role in the formation of large clumps of MWCNTs, namely, the ability of high-performance catalyst to produce agglomerates of MWCNTs with high cohesion, and a high concentration of catalyst particles in the fluidized bed volume. A relationship has been established between chemical components of the catalyst, its structure and cohesive properties of the MWCNT agglomerates formed on it. An approximate semi-analytical scheme for calculating the formation and growth of large fractal agglomerates (clumps) of MWCNTs during their catalytic synthesis in a fluidized bed has been developed. This approach is based on the model of sequential coagulation of MWCNT agglomerates starting from the primary ones, and made it possible to formulate the requirements for characteristics of the catalyst and parameters of the synthesis process, which ensure homogeneous fluidization in the reactor.
Cite:
Kuznetsov V.L.
, Moseenkov S.I.
, Zavorin A.V.
, Golubtsov G.V.
, Goidin V.V.
, Rabinovich O.S.
, Malinouski A.I.
, Lyah M.Y.
Influence of Catalyst Characteristics on the Formation of MWCNT Agglomerates During the Synthesis in a Fluidized Bed Reactor
Chemical Engineering Journal. 2022. V.447. 137391 :1-14. DOI: 10.1016/j.cej.2022.137391 WOS Scopus РИНЦ AN OpenAlex
Influence of Catalyst Characteristics on the Formation of MWCNT Agglomerates During the Synthesis in a Fluidized Bed Reactor
Chemical Engineering Journal. 2022. V.447. 137391 :1-14. DOI: 10.1016/j.cej.2022.137391 WOS Scopus РИНЦ AN OpenAlex
Dates:
| Submitted: | Jan 10, 2022 |
| Accepted: | Jun 3, 2022 |
| Published online: | Jun 6, 2022 |
| Published print: | Nov 1, 2022 |
Identifiers:
| Web of science: | WOS:000817957700003 |
| Scopus: | 2-s2.0-85133272057 |
| Elibrary: | 49152219 |
| Chemical Abstracts: | 2022:1559534 |
| OpenAlex: | W4281611523 |