Simulation of a Four-Bed Pressure Swing Adsorption Process for Oxygen Enrichment

Study of a six‐bed pressure swing adsorption process

“…The study was, however, simplified by considering only a single impurity. Notable among other complex PSA operations that have been recently addressed is a study on air separation for oxygen purification using a four-bed, eight-step cycle (Chou and Huang, 1994;Chiang et al, 1994). The model included the valve equation for depicting dynamic pressure profile, but adopted a local equilibrium (i.e., no particle mass-transfer resistance) model for particle adsorption.…”

Robust numerical simulation of pressure swing adsorption process with strong adsorbate CO2

“…PSA for hydrogen or air separation, the partition parameter K c is relatively small, and the order of time-derivative slope, O(1= ), is typically less than 10. Consequently, algorithms without rigorous consideration on the diagonal dominance may give a reasonable numerical simulation (Farooq et al, 1993;Chou and Huang, 1994;Yang et al, 1997;Mendes et al, 2001;Webley and He, 2000). However, it should be noted that even for PSA processes with weak adsorbates the coexistence of convection and adsorption in a di erence equation provides matrices with stronger diagonal dominance and consequently leads to more robust algorithms.…”

“…PSA processes are commonly operated in the sense of a cyclic procedure, which includes typically some steps of pressurization, adsorption, rinse, blowdown, and desorption. Quantitative characterization of adsorbate distribution over packed columns is a prerequisite to design, control and optimization of the processes (Hashimoto and Miura, 1976;Kapoor and Yang, 1989;Kumar, 1994;Chou and Huang, 1994).…”

Dynamic Modeling of Nitrogen Adsorption on Zeolite 13X Bed

“…Detailed description of zeolites structure is accessible in relevant sources [2,3]. There are a lot of studies which have been done on the separation of oxygen from air [4][5][6][7][8][9][10][11][12][13][14][15][16][17][18].…”