A 2D Euler-Euler multiphase computational fluid dynamics (CFD) model in conjunction with the kinetic theory of granular flow (KTGF) was applied to describe the biomass pyrolysis in a spouted bed reactor. The primary interest in this work was the development of a CFD hydrodynamic model of the reactor coupled with a pyrolysis kinetic model for the prediction of biomass pyrolysis product yields (gas, bio-oil, and char). The kinetic model is based on three parallel reactions for the formation of the pyrolysis products and a secondary reaction of gas formation from bio-oil. The CFD hydrodynamic model suitably predicts the behavior of the spouting regime, and its simultaneous resolution with the kinetic model leads to a satisfactory quantitative agreement between the predicted and experimental values for bio-oil and gas yields. This study is evidence of the great potential of CFD techniques for the design, optimization, and scale-up of conical spouted bed reactors.

将二维Euler-Euler多相计算流体动力学（CFD）模型与颗粒流动力学理论（KTGF）结合使用来描述喷头床反应器中的生物质热解。这项工作的主要兴趣是开发反应器的CFD流体力学模型以及热解动力学模型，以预测生物质热解产物的收率（气体，生物油和焦炭）。动力学模型基于热解产物形成的三个平行反应和生物油形成气体的二次反应。CFD流体力学模型可以适当地预测喷流状态的行为，并且其与动力学模型的同时解析可以为生物油气产量的预测值和实验值之间带来令人满意的定量一致性。