Particulates carried in either the electrolyzer feedwater or in the lye (for alkaline based systems), have the potential to contaminate the stack, reducing efficiency and creating permanent damage if left unattended for an extended period. High performance and a smaller vessel footprint are important to maintaining a clean liquid stream that protects process equipment and provides quality final products.

Parker’s XtreamPure high flow liquid filter can be used for all liquid electrolzser applications. The system uses large diameter filter cartridges, significantly increasing the flow of liquid that can be processed and reducing the number of cartridges to changeout versus traditional filters.

Liquid flows through the cartridge from the “inside to outside” ensuring that contaminants are fully retained. By capturing contaminants in this way, service (cartridge swap-out) is a much cleaner and safter process. A wide range of filter cartridge options are available, enabling Parker to customize a solution according to customer needs.

Upon start up and following electrolyzer system maintenance, a nitrogen purge may be required. Nitrogen gas can be supplied in a variety of methods, including gas cylinders or in liquid nitrogen dewars. Depending on the electrolyzer location, there may be challenges with traditional gas supply methods, such as logistical issues, safety concerns and high costs (delivery, rental of cylinders, cost of gas).

Parker offers a wide range of Nitrogen Generators – based on two technologies – pressure swing adsorption and proprietary hollow fiber membrane. The systems enable customers to generate their own gas - on site, safely and conveniently. Compressed air delivered to the generator is separated and the nitrogen can be delivered at the purity required for the customer application. The systems are incredibly reliable, require minimal maintenance and offer >10 years’ service life.