Automation of the process of microwave hydrothermal synthesis of nanopowders

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Andrzej Majcher Institute for Sustainable Technologies – National Research Institute, Radom, Poland

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Abstract

The article presents the process of microwave hydrothermal synthesis of nanopowders automation. The essential elements of automation are: a novel reactor and its control system. The reactor has a unique design of process chamber, which used in conjunction with a batch control system allows highly efficient production of nanopowders to be obtained. The design of the reactor together with new principles of operation, structural materials, and distribution of electromagnetic field are described. The paper also presents a control system for the reactor, which allows for automatic operation in the stop-flow mode, control of process pressure, continuous monitoring of process parameters and safe operation of the device.

Keywords

automation of chemical processes, batch control, microwave hydrothermal synthesis, nanopowder, stop-flow mode

Automatyzacja procesu mikrofalowej hydrotermalnej syntezy nanoproszków

Streszczenie

W artykule przedstawiono automatyzację procesu mikrofalowej hydrotermalnej syntezy nanoproszków. Jej zasadniczymi elementami są: nowy typ reaktora oraz jego system sterowania. Reaktor posiada unikatową konstrukcję komory procesowej, co w połączeniu z zastosowanym systemem sterowania wsadowego pozwala na uzyskiwanie dużej wydajności produkcji nanoproszków. Opisano konstrukcję reaktora z uwzględnieniem nowej zasady działania, materiałów konstrukcyjnych, rozkładu pola elektromagnetycznego. Przedstawiono system sterowania urządzeniem, który zapewnia automatyczną realizacje procesów w trybie stop-flow, regulacje ciśnienia procesu, ciągłe monitorowanie parametrów procesów oraz zachowanie bezpieczeństwa obsługi urządzenia.

Słowa kluczowe

automatyzacja procesów chemicznych, mikrofalowa synteza hydrotermalna, nanoproszki, sterowanie wsadowe, stop-flow mode

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