Abstract: According to principles and features of biological circulatory system，a novel monolithic catalyst chip with bionic micro-channel network configuration was proposed.It included a multi-stage and multi-function network with separated inflow and outflow systems.A series of high-resolution CFD simulations and optimizations were performed to investigate the characteristics of the bionic configuration.Compared with conventional fixed-bed catalyst chip，flow resistance was greatly reduced by using bionic micro-channel network at the same residence time.Back-mixing was lowered in the optimal bionic network. Strong robustness was verified for the bionic micro-channel network configuration，which would reduce worse effects induced by uncertain factors，such as short passing or blocking in micro-channel network. This kind of bionic network is an ideal configuration fit for monolithic catalyst chip.

Key words: monolithic catalyst, micro-channel, bionic network, CFD simulation, configuration optimization

摘要： 借鉴生物体内循环系统的原理和组织结构特征，设计了一种具有进料、出料仿生微通道网络分布的整体式催化剂芯片。对仿生通道网络构型进行了CFD模拟研究和优化计算。模拟发现，在保证相同停留时间条件下，相比传统床层式催化剂芯片，具有仿生微通道网络分布的整体式催化剂芯片流动阻力极大降低。经过构型优化的仿生通道结构芯片返混小，平推效果较好。稳定性分析表明，仿生通道结构芯片还具有较好的抗干扰性，能够有效地降低流道短路或断路等不确定因素带来的不良影响，是一种理想的催化剂芯片构型。

关键词: 整体式催化剂, 微通道, 仿生网络, CFD模拟, 构型优化