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Портал Begell Электронная Бибилиотека e-Книги Журналы Справочники и Сборники статей Коллекции
Journal of Automation and Information Sciences
SJR: 0.232 SNIP: 0.464 CiteScore™: 0.27

ISSN Печать: 1064-2315
ISSN Онлайн: 2163-9337

Выпуски:
Том 51, 2019 Том 50, 2018 Том 49, 2017 Том 48, 2016 Том 47, 2015 Том 46, 2014 Том 45, 2013 Том 44, 2012 Том 43, 2011 Том 42, 2010 Том 41, 2009 Том 40, 2008 Том 39, 2007 Том 38, 2006 Том 37, 2005 Том 36, 2004 Том 35, 2003 Том 34, 2002 Том 33, 2001 Том 32, 2000 Том 31, 1999 Том 30, 1998 Том 29, 1997 Том 28, 1996

Journal of Automation and Information Sciences

DOI: 10.1615/JAutomatInfScien.v51.i4.60
pages 66-76

Precision Control System of Chemical Reactor of Continuous Operation

Oleksii A. Stopakevich
Odessa National Polytechnic University, Odessa
Elena O. Ulitskaya
Institute of Energy and Computer Control Systems of Odessa National Polytechnic University, Odessa

Краткое описание

Operation of the precision automatic control system for a continuous chemical reactor of the synthesis of the vitamin B6 is considered. Flows of concentrated nitric acid and a suspension of pyridone with acetic anhydride enter the reactor. The reaction of pyridone with acid is exothermic, therefore, the reactor is provided with a jacket for cooling the mixture. From the point of view of modeling the chemical reactor for the synthesis of vitamin B6 is a reactor of ideal mixing. The reactor model takes into account the mutual influence of parameters, heat transfer and the kinetics of a chemical reaction. The model of automation equipment takes into account its basic properties. The dynamics of actuators, running-down of the shaft speed are considered, which enables the realization of more accurate control. Considering peculiarities of measuring devices of the control system modeling increases the reliability of transient processes and assessment of the system quality. The kernel of the system is the optimal nonlinear multidimensional controller. The control system enables providing high-precision maintenance of the temperature of the exothermic reaction by taking into account the properties of the equipment. In addition, a higher quality compensation of disturbances is achieved by means of the use of the control approach with separation of entering flows in comparison with a typical control system. The developed system has the property of robustness when changing the load of the installation, providing high quality and safety of the synthesis process of the obtained vitamin. Strict maintenance of the technological mode prevents the occurrence of undesirable reactions resulting in admixtures and violation of the homologous formula of vitamin B6. The considered algorithm can serve as the basis for the development of precision automated process control systems of chemical technological type.

ЛИТЕРАТУРА

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