立式径向流吸附器吸附性能评价指标分析

In view of the lack of appropriate evaluation indexes and calculation formulas of adsorption performance for vertical radial flow adsorber, the effects of operation and structural parameters on the flow uniformity and adsorption time of adsorption layers were investigated and the quantitative relationships between various adsorption performance indexes were compared by using computational fluid dynamics (CFD) technology and Kriging response surface. The results show that in the adsorption process, the main adsorption area of H₂O is on the lower side of the adsorption layer, and the main adsorption area and penetration area of CO₂ are gradually transferred from the lower side to the upper side of the adsorption layer. The main parameters affecting the flow uniformity are the central channel diameter and the adsorption layer length, while the main parameters affecting the adsorption time are the molecular sieve layer thickness and the operating flow rate, so the flow uniformity insufficiently reflect the adsorption performance of the adsorber. According to the data of Kriging response surface, the correlation of adsorption time is obtained, and the fitting degree of the correlation is 99.1%, which provides a theoretical reference for the design and manufacture of vertical radial flow adsorber.