Modular PSA Recovery

Building on a track record of over 100 Pressure Swing Adsorption (PSA) units since 1969, CB&I is your full-range supplier of adsorption-based gas separation plants for hydrogen, helium and other high-value gases.
CB&I is the only hydrogen PSA supplier capable of self-performing all phases of a project—from separation technology to complete engineering, shop fabrication, field commissioning and after-sales support. CB&I’s world-leading capabilities allow us to deliver projects faster than any other PSA supplier, with exceptional quality and the benefits of a single point of responsibility.
CB&I-designed and built PSA units deliver hydrogen purity to customer specifications, from 99.5% H2 for refinery applications up to and including 99.9999%+ H2 applications for critical service in petrochemical and semiconductor applications.

  • Small footprint and small stored flammable gas volume
  • Reliable, redundant, fault-tolerant operation
  • Uniquely suited to stable performance with large daily temperature variations 

CB&I’s continuous improvement philosophy is backed by our ongoing program of adsorbent characterization, separation design and validation. Our emphasis is on combining our state-of-the-art adsorbent and cycle technologies with the highest quality of componentry and fabrication to deliver a product of lasting value. CB&I cyclic adsorption plants are engineered using the best adsorbent technologies from leaders in the fields of zeolites, activated carbons, silica gels and aluminas—delivering specifically-tailored, optimum solutions to each customer's specifications.


Many older PSA plants can be revamped with new automation systems to increase their performance and reliability. With our substantial in-house automation engineering team, CB&I can design, install and commission a new control system for your existing PSA plant.

Replacement Adsorbents

CB&I works with the same adsorbent manufacturers that produce the top quality materials for our new units to supply replacement adsorbent systems.

PSA Adsorber Vessels

Adsorber vessels designed and built by CB&I are highly-engineered, precision-crafted products that work with our adsorbent and cycle technology to yield a high-performance, durable system.

Services & Training

CB&I offers a full scope of field support and training for new PSA plants and existing clients.
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