Dynamic evaluation for liquid tracer in a trickle bed reactor

Silva, Jornandes Dias da

doi:10.1590/s1678-58782011000300002

Cited by 11 publications

(6 citation statements)

References 12 publications

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“…All these parameters (Table 1) are kept for same operating condition of this work. (Silva, 2011) agℓ (m 2 / m 3 bed) 185 (Silva, 2011) h (-) 8.3x10 -1 Estimated p (m 3 gas/m 3 bed) 0.59 (Silva et al, 2019) Deff, CO2 (m 2 /sec) 1.87x10 -7 (Silva et al, 2019) fe,av. (-) 0.37 (Silva, 2011) kℓs, av.…”

Section: Model Parameters For Simulationsmentioning

confidence: 99%

“…The analysis of the RTD from TP-PB reactor provides essential information about their overall performance (Silva, 2011, Moulijn et al, 2016. In addition, the RTD represents an useful tool in TP-PB reactor design, especially when deviations from ideal flow patterns (such as plug flow) play a key function in determining the reactor performance (Panariello et al 2018;Silva et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

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Mathematical modelling of the residence time distribution of CO2 tracer in a three-phase micro-packed bed reactor: An experimental analysis

Silva

Dias

2021

RSD

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This study reports the residence time distribution (RTD) using CO2 as tracer in Three-phase micro-packed bed (TP-mPB) reactor. Experimental measurements were obtained at the inlet and at the outlet from TP-mPB reactor using the injection of small amount (3%) of CO2 tracer inside the sweep gas current. The dynamic model characterizes a diffusion-adsorption process of CO2 tracer in terms of mass transfer phenomena (external and internal). The mathematical model was validated against a set of experimental data where simulated results of CO2 tracer adequately matched the experimental measures at the outlet of the micro-packed bed.

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Section: Model Parameters For Simulationsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Mathematical modelling of the residence time distribution of CO2 tracer in a three-phase micro-packed bed reactor: An experimental analysis

Silva

Dias

2021

RSD

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“…So it, the Equation (39) will be used to obtain the concentration of the tracer at the exit of the trickle-bed reactor by numerical inversion using the numerical fast Fourier transform (NFFT) technique. By using the NFFT technique for a disturbance of the type positive step can be obtained from the following expression [8,9].…”

Section: Solution In the Laplace Domainmentioning

confidence: 99%

Application of Laplace Transform for a Gas-Liquid-Solid Trickle Bed Reactor by Using the Tracer Technique

Silva¹

2013

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Experimental evaluation and dynamic modelling were presented for a liquid flow (H 2 O + NaOH tracer) on solid particles in a trickle bed reactor. One-dimensional dynamic mathematical model has been described to study the gas-liquid-solid process in which the liquid phase with the NaOH tracer is treated as a continuum. The physical model has been analyzed, including the formulation of initial and boundary conditions and the description of the solution methodology. An experimental setup to measure the concentrations of the NaOH tracer has been performed. The concentration measurements of this NaOH tracer have been performed in a fixed be reactor on trickling flow of the liquid phase for a range of operating conditions. The axial dispersion (D ax ) of the liquid phase, liquid-solid mass transfer (k LS ) coefficient and partial wetting efficiency (f e ) were chosen as the hydrodynamic parameters of the proposed mathematical model. Such parameters have been optimized with experimental measurents of the NaOH tracer at the exit of the trickle-bed reactor. The optimized parameters (D ax , k LS and f e ) were calculated simultaneously by using the theoretical model with minimization of the objective function. Results of the proposed mathematical model have been presented and compared as of the two experimental cases. These hydrodynamic parameters were fitted by means of the empirical correlations.

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“…Essa variação de comportamento são classificadas em três tipo de regime: Regime de Leito Gotejante, Pulsante e de Bolhas dispersas. O Regime de Leito Gotejante é o mais utilizado em aplicações industriais devido a sua alta conversão e fácil adaptação para altas pressões, maior fator de efetividade, entre outras vantagens [3].…”

Section: Introductionunclassified

Análise de transferência de calor em um reator trifásico de leito fixo com aplicação da transformada de Laplace

Heleno¹,

Cavalcanti²,

Silva³

2016

REPA

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Dynamic evaluation for liquid tracer in a trickle bed reactor

Cited by 11 publications

References 12 publications

Mathematical modelling of the residence time distribution of CO2 tracer in a three-phase micro-packed bed reactor: An experimental analysis

Mathematical modelling of the residence time distribution of CO2 tracer in a three-phase micro-packed bed reactor: An experimental analysis

Application of Laplace Transform for a Gas-Liquid-Solid Trickle Bed Reactor by Using the Tracer Technique

Análise de transferência de calor em um reator trifásico de leito fixo com aplicação da transformada de Laplace

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