Monitoring of Impurity in Hydrogen Gas for FCV

Demand for hydrogen, which has been attracting attention as a clean energy source, is expected to increase for energy applications in the areas of fuel cells and hydrogen gas turbines in addition to conventional industrial applications. ISO 14687-2 defines hydrogen quality standards for fuel cell vehicles, and failing to comply with these standards leads to poisoning of the catalyst and fuel cells.

Issues

Impurities of ultra-low concentration cannot be measured.
Want to perform continuous monitoring instead of batch measurement.
Want to prioritize purity monitoring of carbon monoxide (CO) to monitor the quality of hydrogen gas itself and to identify the PSA performance.

*PSA: Pressure Swing Adsorption

HORIBA's Trace Gas Analyzer Realizes High-Sensitive and Continuous Monitoring of Impurities in Hydrogen Gas

HORIBA's GA-370 trace gas analyzer can continuously measure impurities in hydrogen gases with high sensitivity. It can stably measure substances that are major causes of poisoning, including CO at a minimum detection sensitivity of 10 ppb and with a low range of 0 to 1 ppm.
The GA-370 can also measure up to two components, such as CO and CH₄, at the same time with a single unit. This will help to know the performance of PSA and timing to exhange the catalyst inside.

Features

Improved stability by employing HORIBA's unique measurement technique (cross-flow modulation dual-beam non-dispersive infrared (NDIR) technique)
The infrared system realizes a minimum detection sensitivity of 10 ppb.
Low range measurement (0-1, 2, 5, or 10 ppm) is possible.
It enables to measure up to two components in CO, CH₄ and CO₂.

Case Studies

Hydrogen Quality Control at Hydrogen Production Plant

Trace Gas Analyzer GA-370 controls the quality of high-purity hydrogen gas, by monitoring the concentration of CO, CO₂and CH₄among the impurities generated in the hydrogen.

Process Monitoring of PSA during Hydrogen Purification

In PSA during the manufacturing process, GA-370 monitors the concentration of impurities in real time. It contributes to hydrogen quality control and reduction of manufacturing cost.

Hydrogen Quality Control at On-site Hydrogen Fueling Station

Similar to hydrogen production plant, GA-370 monitors the concentration of CO, CO₂, CH₄among the impurities generated in the hydrogen production equipment, at on-site hydrogen fueling station. Grasping these concentrations are significant because those would deteriorate the fuel cell of vehicles.

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