Get 20M+ Full-Text Papers For Less Than $1.50/day. Start a 14-Day Trial for You or Your Team.

Learn More →

Dominance of heat transfer limitations in conventional sol-gel synthesis of LTA revealed by microcrystallization

Dominance of heat transfer limitations in conventional sol-gel synthesis of LTA revealed by... The non-classical nucleation and growth mechanism for hydrothermal zeolite synthesis is a complex convolution of thermodynamic phase transformations, kinetic chemical condensations, three-phase mass transfer and spatial-temporal thermal gradients. The process is typically studied in batch autoclaves heated with laboratory ovens before being scaled in high temperature batch crystallizers. The experimental and theoretical work presented here proposes that transport limitations dominate batch process syntheses. Thus, kinetically-controlled, scalable crystallization must be achieved for accurate elucidation of the underlying crystallization mechanism. A segmented microdroplet crystallizer is used to remove internal and external heat transfer gradients during the synthesis of LTA zeolite crystals. The heat transfer regimes are carefully mapped, and specific criteria are established for overcoming thermal limitations.Graphical abstract[graphic not available: see fulltext] http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Flow Chemistry Springer Journals

Dominance of heat transfer limitations in conventional sol-gel synthesis of LTA revealed by microcrystallization

Download PDF
12 pages

Loading next page...
 
/lp/springer-journals/dominance-of-heat-transfer-limitations-in-conventional-sol-gel-9uZQ0TrFUQ
Publisher
Springer Journals
Copyright
Copyright © Akadémiai Kiadó 2022
ISSN
2062-249X
eISSN
2063-0212
DOI
10.1007/s41981-022-00217-1
Publisher site
See Article on Publisher Site

Abstract

The non-classical nucleation and growth mechanism for hydrothermal zeolite synthesis is a complex convolution of thermodynamic phase transformations, kinetic chemical condensations, three-phase mass transfer and spatial-temporal thermal gradients. The process is typically studied in batch autoclaves heated with laboratory ovens before being scaled in high temperature batch crystallizers. The experimental and theoretical work presented here proposes that transport limitations dominate batch process syntheses. Thus, kinetically-controlled, scalable crystallization must be achieved for accurate elucidation of the underlying crystallization mechanism. A segmented microdroplet crystallizer is used to remove internal and external heat transfer gradients during the synthesis of LTA zeolite crystals. The heat transfer regimes are carefully mapped, and specific criteria are established for overcoming thermal limitations.Graphical abstract[graphic not available: see fulltext]

Journal

Journal of Flow Chemistry – Springer Journals

Published: Apr 7, 2022

Keywords: Hydrothermal; Zeolite; Synthesis; Microdroplet; Mixing

References

  • Mesostructured zeolites: bridging the gap between zeolites and MCM-41
    Prasomsri, T; Jiao, W; Weng, SZ; Garcia Martinez, J
  • Zeolite growth by addition of subcolloidal particles: modeling and experimental validation
    Nikolakis, V; Kokkoli, E; Tirrell, M; Tsapatsis, M; Vlachos, DG
  • Assembly and evolution of amorphous precursors in zeolite L crystallization
    Kumar, M; Li, R; Rimer, JD
  • Aging time effect on the synthesis of small crystal LTA zeolites in the absence of organic template
    Alfaro, S; Rodríguez, C; Valenzuela, MA; Bosch, P
  • Diverse physical states of amorphous precursors in zeolite synthesis
    Li, R; Chawla, A; Linares, N; Sutjianto, JG; Chapman, KW; Martínez, JG; Rimer, JD
  • Continuous-flow sonocrystallization in droplet-based microfluidics
    Rossi, D; Jamshidi, R; Saffari, N; Kuhn, S; Gavriilidis, A; Mazzei, L
  • One-minute synthesis of crystalline microporous aluminophosphate (AlPO4-5) by combining fast heating with a seed-assisted method
    Liu, Z; Wakihara, T; Nishioka, D; Oshima, K; Takewaki, T; Okubo, T
  • Design and scaling up of microchemical systems: a review
    Zhang, J; Wang, K; Teixeira, AR; Jensen, KF; Luo, G
  • Continuous flow synthesis of ZSM-5 zeolite on the order of seconds
    Liu, Z; Okabe, K; Anand, C; Yonezawa, Y; Zhu, J; Yamada, H; Endo, A; Yanaba, Y; Yoshikawa, T; Ohara, K; Okubo, T; Wakihara, T
  • History of ZSM-5 fluid catalytic cracking additive development at Mobil
    Degnan, T; Chitnis, G; Schipper, PH
  • Chapter 2 zeolites and molecular sieves an historical perspective
    Flanigen, EM; van Bekkum, H; Flanigen, EM; Jansen, JC
  • Synthesis of self-pillared zeolite nanosheets by repetitive branching
    Zhang, X; Liu, D; Xu, D; Asahina, S; Cychosz, KA; Agrawal, KV; Al Wahedi, Y; Bhan, A; Al Hashimi, S; Terasaki, O; Thommes, M; Tsapatsis, M
  • Surface structure of zeolite (MFI) crystals
    Díaz, I; Kokkoli, E; Terasaki, O; Tsapatsis, M
  • Deposition of oriented zeolite a films: in situ and secondary growth
    Boudreau, LC; Kuck, JA; Tsapatsis, M
  • Mechanistic principles of nanoparticle evolution to zeolite crystals
    Davis, TM; Drews, TO; Ramanan, H; He, C; Dong, J; Schnablegger, H; Katsoulakis, MA; Kokkoli, E; McCormick, AV; Penn, RL; Tsapatsis, M
  • Zeolites and molecular-sieves - not JUST ordinary catalysts
    Davis, ME
  • Structure-direction in zeolite synthesis
    Lobo, RF; Zones, SI; Davis, ME; Herron, N; Corbin, DR
  • Ordered porous materials for emerging applications
    Davis, ME
  • Accelerated crystallization of zeolites via hydroxyl free radicals
    Feng, G; Cheng, P; Yan, W; Boronat, M; Li, X; Su, J-H; Wang, J; Li, Y; Corma, A; Xu, R; Yu, J
  • From microporous to mesoporous molecular sieve materials and their use in catalysis
    Corma, A
  • State of the art and future challenges of zeolites as catalysts
    Corma, A
  • Machine learning applied to zeolite synthesis: the missing link for realizing high-throughput discovery
    Moliner, M; Román-Leshkov, Y; Corma, A
  • Silica self-assembly and synthesis of microporous and mesoporous silicates
    Rimer, JD; Fedeyko, JM; Vlachos, DG; Lobo, RF
  • Recent advances in the understanding of zeolite synthesis
    Thompson, RW
  • Mathematical analyses of zeolite crystallization
    Thompson, RW; Dyer, A
  • SSZ-13 crystallization by particle attachment and deterministic pathways to crystal size control
    Kumar, M; Luo, H; Román-Leshkov, Y; Rimer, JD
  • Rational design of zeolite catalysts
    Rimer, JD
  • A structural resolution Cryo-TEM study of the early stages of MFI growth
    Kumar, S; Wang, Z; Penn, RL; Tsapatsis, M
  • Continuous synthesis of zeolite NaA in a microchannel reactor
    Ju, J; Zeng, C; Zhang, L; Xu, N
  • Zeolite synthesis in unstirred batch reactors II. Effect of non-uniform pre-mixing on the crystallization of zeolites A and X
    Coker, EN; Dixon, AG; Thompson, RW; Sacco, A
  • Zeolite crystallization triggered by intermediate stirring
    Chen, C-T; Iyoki, K; Yamada, H; Sukenaga, S; Ando, M; Shibata, H; Ohara, K; Wakihara, T; Okubo, T
  • Effects of ultrasound on the synthesis of zeolites: a review
    Askari, S; Miar Alipour, S; Halladj, R; Davood Abadi Farahani, MH
  • Epitaxial growth of zeolite X on zeolite a and twinning in zeolite a: structural and topological analysis
    Porcher, F; Dusausoy, Y; Souhassou, M; Lecomte, C
  • Transient modes of zeolite surface growth from 3D gel-like islands to 2D single layers
    Kumar, M; Choudhary, MK; Rimer, JD
  • Organic-free Interzeolite transformation in the absence of common building units
    Qin, W; Jain, R; Robles Hernández, FC; Rimer, JD
  • Accelerated synthesis of a Ni2Cl2(BTDD) metal–organic framework in a continuous flow reactor for atmospheric water capture
    Bagi, S; Wright, AM; Oppenheim, J; Dincă, M; Román-Leshkov, Y
  • Dynamics of temperature-actuated droplets within microfluidics
    Khater, A; Mohammadi, M; Mohamad, A; Nezhad, AS
  • A two-phase segmented microfluidic technique for one-step continuous versatile preparation of zeolites
    Yu, L; Pan, Y; Wang, C; Zhang, L
  • Dynamics of microfluidic droplets
    Baroud, CN; Gallaire, F; Dangla, R
  • Kinetics of formation of zeolite Na-A [LTA] from natural kaolinites
    Gualtieri, A; Norby, P; Artioli, G; Hanson, J
  • Analysis of zeolite crystallizations using Avrami transformation methods
    Thompson, RW
  • Analysis of zeolite crystallization using the "crystallization curve"
    Den Ouden, CJJ; Thompson, RW
  • A review of classical and nonclassical nucleation theories
    Karthika, S; Radhakrishnan, TK; Kalaichelvi, P
  • Speeding up discovery of Auxetic zeolite frameworks by machine learning
    Gaillac, R; Chibani, S; Coudert, F-X
  • Synthesis mechanism: crystal growth and nucleation
    Cubillas, P; Anderson, MW
  • Present and future synthesis challenges for zeolites
    Coronas, J
  • Mechanism of zeolites crystal growth: new findings and open questions
    Grand, J; Awala, H; Mintova, S
  • Control of crystal size and distribution of zeolite a
    Brar, T; France, P; Smirniotis, PG
  • Controlled addition of aged mother liquor to zeolite NaA synthesis solutions
    Gora, L; Thompson, RW
  • Role of homogeneous nucleation in the formation of primary zeolite particles
    Bronić, J; Subotić, B
  • Crystallization of high-silica ZSM-5 in the presence of seeds
    Warzywoda, J; Edelman, RD; Thompson, RW
  • Temperature distributions within zeolite precursor solutions in the presence of microwaves
    Gharibeh, M; Tompsett, G; Lu, F; Auerbach, SM; Yngvesson, KS; Conner, WC
  • Mechanisms of structure direction in the synthesis of pure-silica zeolites. 1. Synthesis of TPA/Si-ZSM-5
    Burkett, SL; Davis, ME
  • In situ imaging of silicalite-1 surface growth reveals the mechanism of crystallization
    Lupulescu, AI; Rimer, JD
  • Sub-40 nm zeolite suspensions via disassembly of three-dimensionally ordered mesoporous-imprinted Silicalite-1
    Lee, P-S; Zhang, X; Stoeger, JA; Malek, A; Fan, W; Kumar, S; Yoo, WC; Al Hashimi, S; Penn, RL; Stein, A; Tsapatsis, M
  • Microwave preparation of zeolite Y and ZSM-5
    Arafat, A; Jansen, JC; Ebaid, AR; van Bekkum, H
  • Influence of process parameters in microwave continuous synthesis of zeolite LTA
    Bonaccorsi, L; Proverbio, E
  • Ultrafast synthesis of zeolites: breakthrough, progress and perspective
    Liu, Z; Zhu, J; Wakihara, T; Okubo, T
  • An in situ calorimetric study of the synthesis of FAU zeolite
    Yang, S; Navrotsky, A; Phillips, BL
  • Understanding the nucleation and crystal growth of zeolites: a case study on the crystallization of ZSM-5 from a hydrogel system under Ultrasonication
    Chen, C-T; Iyoki, K; Yonezawa, Y; Okubo, T; Wakihara, T