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Continuous Flow Synthesis of Zeolites
Di Pan , Peng Liu , Hongbin Zhang , Yi Tang
Progress in Chemistry ›› 2020, Vol. 32 ›› Issue (7) : 873 -881.
Continuous Flow Synthesis of Zeolites
Di Pan , Peng Liu , Hongbin Zhang , Yi Tang
Progress in Chemistry ›› 2020, Vol. 32 ›› Issue (7) : 873 -881.
Due to the wide applications of zeolites in various fields, efficient and reliable synthesis of zeolite has become an important research issue. Compared with traditional high-pressure hydrothermal batch synthesis, continuous flow synthesis is one of the new methods for fast preparation of zeolite owing to its short crystallization time and high space-time yield. The high crystalline zeolites can be harvested in minute- and even second-level thanks to the specific characteristics of continuous flow reactors(CFR), such as low thermal lag, controllable mass transfer and good expansibility, which significantly enhance the synthesis efficiency and controllability. In this paper, based on the recent progress, the component of CFR equipment, the advantages and limitations of CFR for zeolite synthesis, and the future applications are introduced and prospected.
1 Introduction
2 Structure of CFR equipment
2.1 Feeding unit
2.2 Fluid channel
2.3 Heating unit
2.4 Cooling unit
2.5 Back pressure regulator
2.6 Monitor system
3 Features of synthesis process and product
3.1 Features of CFR reaction
3.2 The effective control of crystallization process
3.3 New progress of CFR techniques
4 Limitation of CFR application
4.1 Viscosity
4.2 Blockage
4.3 Crystal aggregation
5 Conclusion and prospect
continuous flow reactors / thermal lag / zeolite synthesis
National Major Research and Development Plan(2018YFA0209402)
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