System analysis of the ethylbenzene dehydrogenation reactor as a control object

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Catalytic dehydrogenation of ethylbenzene charge in a two-stage continuous-action adiabatic reactor is the main stage of the styrene production process. The analysis of this technological process existing automated control systems revealed the following main drawback, that these systems require great efforts from production personnel to ensure a change of the reactor temperature regime in the stages of the reactor in accordance with styrene concentration drop, which is caused by deactivation catalytic layer deactivation. Therefore, the synthesis of the target product concentration at the reactor outlet predictive control system is actual task in the field of technical cybernetics. This article presents the system analysis results of the dehydrogenation reactor as a control object. The main research result is a method choice for controlling of the chemical transformations temperature regime in the reactor, using that, it is possible to increase the energy efficiency and productivity of this device...


Ethylbenzene dehydrogenation, block diagram, control system, structural synthesis, temperature regime of the reactor block, automated control system communication scheme

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IDR: 140238613   |   DOI: 10.20914/2310-1202-2018-2-77-85

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