Pressure Swing Adsorption Plants
The most elegant way for the recovery of pure hydrogen from the hydrogen-rich gases is the pressure swing adsorption (PSA).
These PSA systems are suitable for the most different applications in the refining, petrochemical, chemical and iron/steel-making industry.
But the main application is the recovery and purification of hydrogen from raw gases, such as steam reformer, partial oxidation, refinery, ethylene, coke oven, methanol and ammonia off-gases. The hydrogen product obtained meets every purity requirement (up to 99.9999%) and is achieved at highest recovery rates.
Linde has continued with innovative improvements and strengthened its position as world leader in this field of technology. Over 300 PSA plants – including the world's largest units – have been designed and supplied by Linde. The well proven Linde High Performance PSA Systems provide an economic and reliable separation and purification of a wide range of process gases. These PSA systems are suitable for the most different applications in the refining, petrochemical, chemical and iron/steel-making industry.
General Scheme: Pressure Swing Adsorption
The particular features of Linde's PSA technology are high product recovery rates, low operating cost and operational simplicity. Excellent availability and easy monitoring are ensured by advanced computer control.
Modular skid design of the PSA plants reduces erection time and cost at site. The fully prefabricated skids are thoroughly tested before they leave the workshop. Commissioning and start-up of the plants as well as operator training and after-sales service are performed by experienced specialists.
Example:
Hydrogen PSA Units in Lloydminster/Canada
Client:
Husky Oil Operations Ltd.
Process:
2 PSA Units for:
hydrogen purification of steam reformer syngas
hydrogen recovery from refinery off-gas
Capacity:
132,000 Nm3/h steam reformer syngas, 21,200 Nm3/h refinery off-gas
Scope of Work:
Process design, engineering, supply, start-up supervision
Start-up:
1992
