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Mathematical Simulation of Multiphase Reactive Chromatographic Process

Author: ChenChaoZuo
Tutor: LiXi
School: Zhejiang University
Course: Chemical Engineering
Keywords: Chromatogram Multiphase Nonlinear wave Reaction Numerical Simulation
CLC: O657.7
Type: Master's thesis
Year: 2006
Downloads: 44
Quote: 0
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Abstract


Heterogeneous reaction chromatography , that is more than the mobile phase , and accompanied by the chemical reaction of the chromatographic process . The multiphase reaction chromatography distinguished from multi-phase chromatography in the presence of its chemical reaction term describing the process of first-order partial differential equations for non - homogeneous , giving theoretical analysis and numerical simulation difficult . Mathematical theory and simulation of heterogeneous reaction chromatography research and made ??some progress , establish relevant multiple the nonlinear chromatographic mobile phase and reaction chromatography model ; further consider the process of chemical reaction with the multi-phase chromatography the coupling effect , the development of effective mathematical simulation algorithm to solve the numerical simulation of the concentration the shock and saturation shock problem . This paper, the composite chemical flooding process mechanism and chemical law of motion , the multiphase multicomponent nonlinear chromatography model , simulate surfactant - polymer flooding ; further consideration of a chemical reaction with the multi- phase coupling of the chromatographic process , the establishment of a multi-phase multi-component reaction chromatography equations , and application of the second-order TVD scheme with flux limiting factor of four-component two-phase reversible reaction , three-component reaction chromatographic process network , reveals heterogeneous reaction elution order is adsorbed by the stationary phase , allocation and flow of the liquid-liquid phase saturation jointly decide when the system of absorption, distribution coefficient is fixed , change the saturation of the mobile phase elution order can change , so that the target component to be able to penetrate the other components of the shock plane to obtain effective separation . Solving method of moving boundary method has been improved and proposed alternative test functions , the results show that the orthogonal collocation method better the approximation of the concentration distribution relative to the second - order TVD scheme using orthogonal collocation method . computing speed quickly .

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CLC: > Mathematical sciences and chemical > Chemistry > Analytical Chemistry > Instrument analysis ( physics and physical chemistry ) > Chromatographic analysis
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