RIKEN KEIKI Gas Sensor Technology for Decarbonization

In the process of synthesizing hydrogen and CO2, we need to monitor if it is proceeding as it theoretically should. With RIKEN KEIKI’s OHC-800, we can accurately measure individual concentrations of H2, CO2, and CH4, and the calorific value of the mixed gas, all with one device. It also has a fast response time, which is useful for real-time monitoring of the production process.

For decarbonization to progress, there is a need to recycle flare gas and capture the carbon from that gas. What we needed first was a simple system to monitor the amount of carbon in our flare gas. After consulting with RIKEN KEIKI, they provided us with a composition analysis performed by the dual-sensor configuration. RIKEN KEIKI's system is explosion-proof and capable of continuous measurement, but not as expensive as an analyzer. For those reasons, we believe that this was the right measurement system for our worksite.

Apart from being able to measure calorific values using alternative physical quantities, the OHC-800 is easy to maintain and capable of continuous measurement, which, we think, also makes it well suited as a control device. Not only that, by adding extra sensors, it can measure concentrations of the main components of gases generated by an IGCC system, so it checked all the boxes we were looking for in terms of performance.

In hydrogen vehicles, water is generated when producing energy using hydrogen, so we believe a sensor that can be used even in a high-humidity environment is necessary. The FHD has a heater function, and because it is a sensor that can be used even in environments where humidity could be high, it is useful as an automotive sensor.

A good lineup of products to choose from. The OHC-800 has a good track record of working in CCS (carbon capture and storage) plants. CCS utilizes off-gases from oil after H2 and CO2 have been removed from them. The OHC-800 is also capable of analyzing the original composition of off-gas. We were looking for something that was simple (inexpensive, easy to measure) and could measure these things and came across the OHC-800.

RIKEN KEIKI has a hydrogen gas detector that complies with IEC standards, as well as a full lineup of detectors for gases other than hydrogen. They can also provide maintenance services anywhere in the world.