Adsorbents are the core materials of Pressure Swing Adsorption (PSA/VPSA) systems. The selective adsorption performance of the adsorbents directly determines the industrial feasibility of the process. Lirun Technology has co-developed a series of specialized adsorbents (including lithium-based molecular sieves, copper-exchanged molecular sieves, and specialty activated carbons). These products have been extensively validated in industrial applications such as VPSA oxygen generation (O₂ purity≥93%), PSA CO purification (purity up to 99.9%), and TSA drying (dew point≤ –70°C). They demonstrate specific selectivity, cycling stability, and resistance to contamination, under harsh operating conditions, and providing adsorption–separation solutions for a wide range of gas projects.

Oxygen Adsorbents

The LR-100/200 series dedicated oxygen adsorbents are specifically developed for VPSA-O₂ processes. Utilizing specially formulated lithium-based molecular sieves, they feature:

· N₂/O₂ separation performance (separation factor≥6.3)

· Strong impurity adsorption capacity

· Specific adsorption–desorption kinetics

· High compressive strength (≥12 N) 

· Wide operating pressure range (0.03–0.08 MPa)

· Stable O₂ purity (90–93%) （design value）with power consumption (0.28–0.32 kWh/Nm³)

Carbon Monoxide Adsorbents

The LR-800 series dedicated CO adsorbents adopt copper-exchanged molecular sieve technology, featuring:

· Cyclic adsorption performance within the 0.5–3.0 MPa operating pressure range

· Particularly suitable for CO purification from complex gas sources with high N₂ or CH₄ content (e.g., converter gas, yellow phosphorus off-gas)

· CO purity ≥99.9%, with recovery rates of 85–95%

· Reliable raw material assurance for C1 chemical production

Other Adsorbents & Catalysts

Lirun Technology has independently developed a portfolio of adsorbents and catalysts tailored for stages of industrial gas purification, including:

· Deep dehydration adsorbents

· Dedicated CO₂ adsorbents

· CH₄-selective separation adsorbents

· High-activity deoxidation catalysts

· Transition-metal modified catalysts

These products are designed with proprietary formulations and optimized processes. They have been successfully applied in VPSA O₂ plants, PSA H₂ purification, and CO purification systems, providing professional solutions for industrial gas purification.