Nishioka Masateru, Miyakawa Masato, Nagase Takako
National Institute of Advanced Industrial Science and Technology, 4-2-1, Nigatake, Miyagino-ku, Sendai 983-8551, Japan.
ACS Omega. 2022 May 24;7(22):18638-18645. doi: 10.1021/acsomega.2c01303. eCollection 2022 Jun 7.
A semiflow microwave (MW) heating reactor similar to a flow reactor system was developed. Slurry raw materials in the reaction tube were heated continuously and cooled rapidly by moving a thin MW resonator instead of flowing slurry raw materials. From highly viscous mother slurries, Linde-type A (LTA) and faujasite (FAU)-type zeolite nanoparticles of small crystal grains were synthesized quickly. Results show that this heating system can synthesize hydroxy-sodalite (SOD)-type zeolite from coal fly ash particles including those larger than 50 μm. Numerical calculations using the COMSOL Multiphysics program revealed the thermal distribution of liquids of various viscosities using the semiflow MW heating reactor.
开发了一种类似于流动反应器系统的半流动微波（MW）加热反应器。通过移动薄微波谐振器而不是使浆料原料流动，反应管中的浆料原料被连续加热并快速冷却。从小晶粒的高粘性母浆料中快速合成了林德A型（LTA）和八面沸石（FAU）型沸石纳米颗粒。结果表明，该加热系统可以从包括大于50μm的粉煤灰颗粒中合成羟基方钠石（SOD）型沸石。使用COMSOL Multiphysics程序进行的数值计算揭示了使用半流动微波加热反应器时各种粘度液体的热分布。
