Details

Autor(en) / Beteiligte

• de Oliveira Gehlen, Cindi
• Apio, Andressa
• Koch, Gustavo Guilherme
• Franchi, Claiton Moro
• Hoffmann, Ronaldo
• Gonçalves Salau, Nina Paula

Titel

Implementation of an Indirect Control Structure for Composition in a Hybrid Distillation Column

Ist Teil von

• Separation science and technology, 2015-11, Vol.50 (16), p.2532-2544

Ort / Verlag

Taylor & Francis

Erscheinungsjahr

2015

Link zum Volltext

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• In this paper a PID controller is proposed to ensure the fuel ethanol composition at desired value, above 92.5°INPM, at the same time as saving energy through the minimal use of reboiler power. Due to the fact that composition analyzers are expensive and have a high response time, an inference model was developed in which the product composition is inferred from the product temperature and thermodynamics equations, enabling the monitoring and the indirect control a posteriori of this variable. In addition, the inference of composition allows defining the reference value of the product temperature, which ensures the fuel ethanol production at the desired composition.