Single-Stage Vacuum Pressure Swing Adsorption for Producing High-Purity Oxygen from Air

Abstract

The maximum oxygen concentration obtained using a conventional single-stage pressure swing adsorption unit is ca. 95% balanced mostly with argon. However, there are several applications requiring simple and compact units for producing high-purity oxygen (≥99%), such as medical, military, or aerospace. This article studies a single-stage vacuum pressure swing adsorption (VPSA) unit, loaded with silver-based zeolite AgLiLSX, for producing ca. 1 L STP ·min −1 of high-purity oxygen. The unit was designed on the basis of the experimental and simulation results obtained with a lab-scale unit. For a product concentration of 99.0%, the recovery obtained was ca. 8.0% with a productivity of 9.0 m 3 ·h −1 ·ton −1 .

Vacuum swing CO2 adsorption cycles in Waste-to-Energy plants

“…Computer simulations provide a useful tool to handle process model equations. Several commercial software packages have been recently applied with satisfactory results to modeling studies of adsorption processes such as Matlab [19,20], Aspen Adsorption [21][22][23], gProms [24,25] or Comsol Multiphysics [26][27][28][29].…”

Adsorption Equilibrium, Thermodynamic, and Kinetic Study of O2/N2/CO2 on Functionalized Granular Activated Carbon

“…Pressure swing adsorption (PSA) is among the most cost-effective choices for air separation processes in response to industrial requirements for nitrogen and oxygen separation and purification. 1 − 4 Researchers have been using the PSA method as a more efficient separation approach in air separation in recent years because the PSA process is typically more affordable than other separation processes (cryogenic and membrane technologies). 2 , 3 PSA is a type of green technology that is extensively utilized nowadays, in particular as a low-cost and energy-saving air separation system.…”

Biomass derived hierarchical porous carbon for high-performance O2/N2 adsorption; a new green self-activation approach

“…Gas separation process technologies play an inuential role in various industries including medical, food, chemical, petrochemical, and power generation industries. 1,2 Pressure swing adsorption (PSA) is one of the most cost-effective solutions for air separation applications in response to industrial requirements for nitrogen and oxygen processing. 3,4 In the 1950s, air separation systems based on a pressure swing were established.…”