Optimisation and control of an industrial surfactant reactor

Khuu, S.M.; Rodriguez, J. A.; Romagnoli, José A.; Ngian, Kian F.

doi:10.1016/s0098-1354(00)00342-2

Cited by 4 publications

(6 citation statements)

References 5 publications

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“…The process is carried out industrially in spray tower loop reactors [6][7][8][9][10][11] or in jet loop (buss) reactors [6,12,13]. In a spray tower loop reactor, presented schematically in Fig.…”

Section: Introductionmentioning

confidence: 99%

“…The higher the amount of EO fed to the reactor, the higher the pressure. Consequently, by manipulating the EO flow rate, it is possible to control the reactor pressure [7]. The reactor pressure usually varies between 4 and 5 bar (absolute) and is defined by the reactor productivity and limited by the reactor safety system.…”

Section: Introductionmentioning

confidence: 99%

“…The reactor pressure usually varies between 4 and 5 bar (absolute) and is defined by the reactor productivity and limited by the reactor safety system. Previous works on the modeling of spray tower loop reactors were presented by Hall and Agrawal [8], Santacesaria et al [9], Khuu et al [7,10], and Di Serio et al [6]. Typically, in the reaction zone, the liquid pool is described as a plug-flow reactor, with variation of the EO concentration and the temperature along the liquid height.…”

Section: Introductionmentioning

confidence: 99%

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Kinetics and Modeling of Fatty Alcohol Ethoxylation in an Industrial Spray Loop Reactor

Amaral

Giudici

2011

Chem Eng & Technol

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The kinetics of the ethoxylation of fatty alcohols catalyzed by potassium hydroxide was studied to obtain the rate constants for modeling of the industrial process. Experimental data obtained in a lab-scale semibatch autoclave reactor were used to evaluate kinetic and equilibrium parameters. The kinetic model was employed to model the performance of an industrial-scale spray tower reactor for fatty alcohol ethoxylation. The reactor model considers that mass transfer and reaction occur independently in two distinct zones of the reactor. Good agreement between the model predictions and real data was found. These findings confirm the reliability of the kinetic and reactor model for simulating fatty alcohol ethoxylation processes under industrial conditions.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Kinetics and Modeling of Fatty Alcohol Ethoxylation in an Industrial Spray Loop Reactor

Amaral

Giudici

2011

Chem Eng & Technol

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“…Quanto mais óxido de eteno for alimentado ao reator maior será a pressão. Com isso, manipulando a vazão de óxido de eteno, é possível controlar a pressão (KHUU et al, 2000). A pressão durante a reação usualmente varia entre 4 a 5 barA e é definida de um lado pela produtividade do reator e por outro pela segurança do sistema.…”

Section: Pressãounclassified

“…Com o modelo simulado, desenvolveu-se análise de controlabilidade, onde se procurou manter a pressão em níveis ótimos e maior controle de temperatura. Além da simulação, os mesmos autores publicaram trabalho de otimização do reator de etoxilação (KHUU et al, 2000), a partir de técnicas de controle avançado, buscando por trajetórias ótimas das variáveis de controle.…”

Section: Processo De Produçãounclassified