Pall’s new SepraLYTE^™ Liquid Gas Coalescer has been designed to address these challenging needs of green hydrogen producers.

For instance, in alkaline electrolyzers, the hydrogen gas produced contains a significant amount of liquid electrolyte in the form of mist dispersed within the gas stream, typically consisting of about 30% potassium hydroxide solution. It is important to remove these aerosols as they can have a negative impact on subsequent hydrogen processing steps.

However, green hydrogen producers encounter various challenges during this stage. The pressure drop available for removing electrolyte aerosols may be limited depending on the technology used. Moreover, the product must be chemically compatible to withstand the highly corrosive nature of the 30% potassium hydroxide solution. Additionally, in order to reduce capital expenditures, green hydrogen producers aim to achieve this in a compact separation system.