摘要
基于力平衡和通量的观点,建立了多孔催化剂上非理想体系的反应-扩散模型.该模型综合考虑了非理想气体反应体系的热力学特性和各组分通量之间的相互耦合作用;此外,该模型可根据实际情况依次简化为常规意义上的尘气模型、广义Stefan-Maxwell模型和费克扩散模型.作为单颗粒催化剂上反应-扩散过程通用模拟软件开发的基础,该模型明显优于其他常规模型.
From the viewpoint of force balance and fluxes, a general model of diffusion - reaction processes over a catalyst pellet for a non - ideal reaction system is developed. The thermodynamic characteristics of a non - ideal gaseous mixture and the interaction among the fluxes of different species are considered in the model. In addition, this model can be simplified to the conventional Fick's Model, Extended Stefan - Maxwell Model or Dusty - Gas Model. As the foundation for developing general software simulating the diffusion - reaction processes involved over a pellet of catalyst, this model has obvious advantage over others used usually.
出处
《化工学报》
EI
CAS
CSCD
北大核心
1999年第1期8-14,共7页
CIESC Journal
基金
国家自然科学基金(No.2976003)
国家教委(教技司[1995]121号文下达)资助
