Optimal design of multicomponent countercurrent adsorption separation processes involving nonlinear equilibria

Storti, Giuseppe; Masi, Maurizio; Carrà, Sergio; Morbidelli, Massimo

doi:10.1016/0009-2509(89)85006-7

Cited by 141 publications

(97 citation statements)

References 14 publications

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“…However, others used the equilibrium theory and neglected mass transfer resistances and axial mixing (Storti et al, 1989a(Storti et al, , 1993Mazzotti et al, 1994).…”

Section: Modeling Of a Simulated Moving Bedmentioning

confidence: 99%

“…The separation of xylenes from the aromatic fraction Cs has been studied both in vapor and liquid phase by adsorption on zeolites using the four-section SMB configuration (Storti et al, 1988(Storti et al, , 1989a and the C8 and C5 separation in a six-port SMB pilot plant operating in the vapor phase (Storti et al. 1992: Baciocchi et al, 1995.…”

Section: Introductionmentioning

confidence: 99%

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Separation of 1,1′-bi-2-naphthol enantiomers by continuous chromatography in simulated moving bed

Pais

Loureiro

Rodrigues

1997

Chemical Engineering Science

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Abstract--The chromatographic separation of 1,1'-bi-2-naphthol enantiomers with 3,5-dinitrobenzoyl phenylglycine bonded to silica gel stationary phases is studied. Continuous chromatography in simulated moving bed (SMB) is analyzed by modeling, simulation and operation of a SMB pilot unit Licosep 12-26 from Separex (France).A model for the prediction of the cyclic steady-state performance of the SMB is developed based on the analogy with the true moving bed (TMB). The model assumes axial dispersion flow for the liquid phase, linear driving force (LDF) approximation for intraparticle mass transfer rate and takes into account multicomponent adsorption equilibria.The SMB package allows the simulation of the pilot unit. The effect of operating variables (switching time, extract and feed flow rates, section length) and number of mass transfer units on the SMB performance is analyzed. The SMB performance is characterized by purity, recovery, solvent consumption and adsorbent productivity. The package also allows the simulation of the dynamic evolution of internal profiles for the transient operation of a TMB. The operation of the SMB pilot unit was carried out for the separation of racemic mixtures of bi-naphthol enantiomers. Using a 8-column configuration purities as high as 94.5% of the more retained species in the extract and 98.9% of the less retained species in the raffinate were obtained.

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“…However, others used the equilibrium theory and neglected mass transfer resistances and axial mixing (Storti et al, 1989a(Storti et al, , 1993Mazzotti et al, 1994).…”

Section: Modeling Of a Simulated Moving Bedmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Separation of 1,1′-bi-2-naphthol enantiomers by continuous chromatography in simulated moving bed

Pais

Loureiro

Rodrigues

1997

Chemical Engineering Science

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show abstract

“…The equilibrium theory of Rhee et al (1971Rhee et al ( , 1989 for one-zone continuous countercurrent moving bed process is applied (Storti et al, 1989(Storti et al, , 1993(Storti et al, , 1995Mazzotti et al, 1994Mazzotti et al, , 1996. This study, by contrast, treats a simulated moving bed process as a dynamic chromatography process in a closed loop, except that (1) there are two inlet and two outlet ports (compared to a single inlet and a single outlet port in batch chromatography); and (2) the ports either move continuously or periodically along the fluid-flow direction.…”

Section: Introductionmentioning

confidence: 99%

Standing wave design of nonlinear SMB systems for fructose purification

Mallmann¹,

Burris²,

Ma³

et al. 1998

AIChE Journal

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“…The constant-state R-vector of the section is a combination of the R-vectors for the fluid and solid incoming streams. The exact way to combine the R-vectors depends on the value of the parameter rn6 (Storti et al, 1989;Mazzotti et al, 1994). Taking section 1 as an example, its constant-state R-vector is related to that of the incoming streams a and / 3 by one of the following relations;…”

Section: Vol 44 Nomentioning

confidence: 99%

“…For such purposes, a simple equilibrium model may be of great value. A steady-state, local-equilibrium, true countercurrent (TCC) adsorption model was employed by Storti et al (1989Storti et al ( , 1993Storti et al ( , 1995 and Mazzotti et al (1994Mazzotti et al ( , 1996Mazzotti et al ( , 1997 in a series of efforts to study the SMB process. The purpose was to obtain the most important design rules with a simple but adequate model.…”

Section: Introductionmentioning

confidence: 99%

Complete separation conditions for a local equilibrium TCC adsorption unit

Chiang

1998

AIChE Journal

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Optimal design of multicomponent countercurrent adsorption separation processes involving nonlinear equilibria

Cited by 141 publications

References 14 publications

Separation of 1,1′-bi-2-naphthol enantiomers by continuous chromatography in simulated moving bed

Separation of 1,1′-bi-2-naphthol enantiomers by continuous chromatography in simulated moving bed

Standing wave design of nonlinear SMB systems for fructose purification

Complete separation conditions for a local equilibrium TCC adsorption unit

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