Praxair Inc. (Danbury, CT) announced the launch of a new high-purity hydrogen grade for fuel cell applications. The introduction of the new hydrogen grade is in direct response to fuel cell manufacturers' requests for higher-purity hydrogen. Due to its strict specification, the new hydrogen fuel cell grade cylinder is filled only at specific Praxair specialty gases production facilities.
"The presence of contaminants like ammonia, carbon monoxide and sulfur compounds can harm the catalyst-coated membranes inside the fuel cell, reducing its efficiency," said Janet Coffman, vice president of marketing and business development for Praxair Distribution Inc. "Praxair's new fuel cell grade hydrogen, available in high-pressure cylinders, contains extremely low levels of these impurities, helping maintain the performance and reliability of these devices."
