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首页> 外文期刊>Bulletin of the American Physical Society >APS -70th Annual Meeting of the APS Division of Fluid Dynamics- Event - A coupled CFD and two-phase substrate kinetic model for enzymatic hydrolysis of lignocellulose
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APS -70th Annual Meeting of the APS Division of Fluid Dynamics- Event - A coupled CFD and two-phase substrate kinetic model for enzymatic hydrolysis of lignocellulose

机译：APS-流体动力学APS部门第70届年会-事件-木质纤维素酶水解的CFD和两相底物动力学模型耦合

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摘要

Cost-effective production of fuels from lignocellulosic biomass is an important subject of research in order to meet the world's current and future energy demands. Enzymatic hydrolysis is one of the several steps in the biochemical conversion of biomass into fuels. This process involves the interplay of non-Newtonian fluid dynamics that happen over tens of seconds coupled with chemical reactions that happen over several hours. In this work, we present a coupled CFD-reaction model for conversion of cellulose to sugars in a benchtop mixer reactor. A subcycling approach is used to circumvent the large time scale disparity between fluid dynamics and reactions. We will present a validation study of our simulations with experiments for well-mixed and stratified reactor scenarios along with predictions for conversion rates and product concentrations at varying impeller speeds and in scaled-up reactors.
机译：为了满足世界当前和未来的能源需求，从木质纤维素生物质中经济高效地生产燃料是重要的研究课题。酶促水解是生物质生物化学转化为燃料的几个步骤之一。这个过程涉及数十秒内发生的非牛顿流体动力学与数小时内发生的化学反应的相互作用。在这项工作中，我们提出了一个耦合的CFD反应模型，用于在台式混合器反应器中将纤维素转化为糖。使用子循环方法来规避流体动力学和反应之间较大的时间尺度差异。我们将对混合均匀且分层的反应堆方案进行实验，并对模拟进行验证性研究，并对在不同叶轮速度和规模化反应堆中的转化率和产物浓度进行预测。

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