Model-based selection of the degree of cross-linking of cation exchanger resins for an optimised separation of monosaccharides

Leipnitz, Martin; Biselli, Andreas; Merfeld, Marcel; Scholl, Niklas; Jupke, Andreas

doi:10.1016/j.chroma.2019.460565

Cited by 5 publications

(5 citation statements)

References 33 publications

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“…Its predictive capabilities have been confirmed to be in line with several prior studies [6][7][8][9]. The model comprises cumulative, convective, and axial dispersion equations based on mass balance equations for the mobile phase and solid phase, respectively [10].…”

Section: Introductionsupporting

confidence: 69%

Discrete Dynamic System Modeling for Simulated Moving Bed Processes

Xie,

Zhang,

Hwang

2024

Mathematics

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Although the simulated moving bed (SMB) process boasts advantages such as high productivity and low consumption, the cost of obtaining optimized parameters through practical experiments to control the separation process can be enormous due to its complex nonlinear characteristics. Consequently, the successful transformation of the SMB separation process into a mathematical dynamic model for computer simulation would greatly reduce the research costs associated with experimental studies. In this study, the Crank–Nicolson method was employed to discretize and dynamize the SMB process, enabling the simulation of processes under both linear and Langmuir isotherms. The results of the simulation experiments demonstrated the feasibility and high efficiency of this approach, thereby establishing a solid foundation for further advancements in online control strategies.

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Section: Introductionsupporting

confidence: 69%

Discrete Dynamic System Modeling for Simulated Moving Bed Processes

Xie,

Zhang,

Hwang

2024

Mathematics

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“…Moreover, the CER in particular Amberlite is usually applied for sugar decolorization in the sugar industry. 26,31 To our knowledge, there is paucity of information on how to separate and purify xylose, glucose, and arabinose from the lignocellulosic hydrolysate. Besides, the design of industrialscale chromatographic separation to be integrated into the biorefinery process begins with the selection of a suitable adsorbent material and understanding the thermodynamic properties and kinetic adsorption.…”

Section: Introductionmentioning

confidence: 99%

“…The deficiency in understanding the mechanism of monosaccharides obtained from the hydrothermal process persists. Moreover, the CER in particular Amberlite is usually applied for sugar decolorization in the sugar industry. , …”

Section: Introductionmentioning

confidence: 99%

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Thermodynamic and Kinetic Equilibrium for Adsorption of Cellulosic Xylose of Commercial Cation-Exchange Resins

Phojaroen,

Raita,

Champreda

et al. 2024

ACS Omega

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The development of low-cost purification technology is an indispensable need for industrial biorefinery. Xylose is easily obtained from hydrothermal pretreatment of lignocellulosic biomass. This current study emphasizes the chromatographic monosaccharide separation process using commercial cationexchange resins (CER) including Amberlite 120 and Indion 225 to separate xylose from a mixture of hydrolysates. To understand the performance of the two CER, the studies of equilibrium, thermodynamics, and kinetics were evaluated. In this study, with different xylose concentrations, the adsorption equilibrium was found to follow the Freundlich isotherm model well (R 2 > 0.90 for both CER). The results indicated that a pseudo-second-order model represented the xylose adsorption kinetics. In addition, the activation energy of xylose adsorption onto both CER, i.e., Amberlite 120 and Indion 225 was 34.9 and 87.1 kJ/mol, respectively. The present adsorption studies revealed the potential of these commercial CER to be employed as effective adsorbents for monosaccharide separation technology.

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“…In terms of simulating mobile bed optimization, Leibnitz et al proposed a modelbased optimization approach for the selection of an adsorbent in mobile bed processes. The method utilizes correlations between the structural properties of the adsorbent and the model parameters of a transport dispersive model [15]. Schulze et al introduced the transient nonlinear wave propagation model (TWPM) for the dynamic modeling of multicomponent distillation columns with variable holdup.…”

Section: Introductionmentioning

confidence: 99%

Application of Intelligent Control in Chromatography Separation Process

Xie,

Zhang,

Hwang

2023

Processes

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Chromatographic separation plays a pivotal role in the manufacturing of chemical products and biopharmaceuticals. This technique exploits differences in distribution between stationary and mobile phases to separate mixtures, impacting final product quality. Simulated moving bed (SMB) technology, recognized for its continuous feed, enhances efficiency and increases production capacity while reducing solvent and water consumption. Despite its complexity in controlling variables like flow rates and valve switching times, traditional control theories fall short. This study introduces an intelligent fuzzy controller resembling an approximate neural network (NN) for SMB control. Simulation results demonstrate the controller’s effectiveness in achieving desirable outcomes for the SMB system.

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Model-based selection of the degree of cross-linking of cation exchanger resins for an optimised separation of monosaccharides

Cited by 5 publications

References 33 publications

Discrete Dynamic System Modeling for Simulated Moving Bed Processes

Discrete Dynamic System Modeling for Simulated Moving Bed Processes

Thermodynamic and Kinetic Equilibrium for Adsorption of Cellulosic Xylose of Commercial Cation-Exchange Resins

Application of Intelligent Control in Chromatography Separation Process

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