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. Based on the viewpoint of force balance and flux, a reaction-diffusion model of non-ideal system on porous catalyst is established, which takes into account the thermodynamic properties of the non-ideal gas reaction system and the mutual coupling between the flux of each component. , Which can be reduced to the conventional dust-gas model, generalized Stefan-Maxwell model and Fick diffusion model according to the actual situation.As the basis for the general simulation software development of reaction-diffusion process on single particle catalyst, the model is obviously better than Other conventional models.