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首页> 外文会议>International conference on simulation and modelling in the food and bio-industry >MODELING OF DIFFUSION-ADSORPTION KINETICS OF 1-METHYLCYCLOPROPENE (1-MCP) IN APPLE FRUIT AND NON-TARGET MATERIALS IN STORAGE ROOMS
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MODELING OF DIFFUSION-ADSORPTION KINETICS OF 1-METHYLCYCLOPROPENE (1-MCP) IN APPLE FRUIT AND NON-TARGET MATERIALS IN STORAGE ROOMS

机译：苹果果实和非靶材中1-甲基环丙烯（1-MCP）的扩散吸附动力学模型

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The purpose of this research was to model the kinetics of adsorption of 1-Methylcyclopropene (1-MCP) in apple fruit and 'non-target' solid materials found in apple storage rooms. A distinction is made between diffusion into the material and the adsorption. The process was therefore described by Fick's second law of diffusion of the gas through the pores of the material coupled with adsorption of the gas on the material's binding sites. A finite element formulation of the model, describing the diffusion and adsorption mechanisms separately, was first developed. The values of the relevant parameters were estimated based on head space measurements of the decrease of 1-MCP in dedicated jars with the different materials. The diffusion coefficient, adsorption coefficient and concentration of active site in the various solids were determined and were in the order of 10-9m2/s, 101 m3 mol-1s-1 and 10-4 mol m-3 respectively. The model was validated with separate experimental data.
机译：这项研究的目的是模拟苹果果实中1-甲基环丙烯（1-MCP）和苹果储藏室中发现的“非目标”固体物质的吸附动力学。在材料中的扩散与吸附之间有区别。因此，该过程由菲克第二定律描述，该定律是气体通过材料的孔扩散，再加上气体在材料的结合位点上的吸附。首先开发了该模型的有限元公式，分别描述了扩散和吸附机理。相关参数的值是根据使用不同材料的专用广口瓶中1-MCP减少的顶空测量值估算的。测定了在各种固体中的扩散系数，吸附系数和活性部位的浓度，分别为10-9m2 / s，101 m3 mol-1s-1和10-4 mol m-3。该模型已通过单独的实验数据进行了验证。

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