PSA Control System

These days state-of-the-art PSA units contains several Adsorbers and valves. These gets operated in a controlled manner. These Pressure Swing Adsorption units contain multiple switchovers to cycles that use lesser adsorbers to bypass a non-functioning valve or instrument. To give an illustration, a twelve bed system can be designed in such a fashion to operate as beds of lesser number like 8 or 10- bed unit.

Key Features of PSA control systems:
A modern PSA control system take full advantage of the power of latest technology with regard to the following:

• Analog and digital control that is smooth and precise.
• Multiple switchovers.
• Highly improved diagnostics.
• Easy Operations: That reduces the requirement of manual labour.
• Programmable Logic Controllers(PLC): These days most of PSA units are controlled by Microprocessor-based programmable logic controllers. Which gives the benefits of high-level control capability, uniformed data highway links to distributed control system (DCS) among others.
• Automatic Operations: This includes automatic operations of capacity and purity control, self-adaptive tuning, offgas flow or pressure control, automatic shutdown and start-up etc.