SmartCEMS® in GH2 Plants
Process Control and Purity in GH2 Plants
The realization of the importance of shifting from fossil fuels, both for environmental and energy security reasons, makes the use of green hydrogen extremely pertinent, as one of several potential low-carbon fuels that could take the place of fossil hydrocarbons.
To maintain safe operation, optimise the power to hydrogen conversion, and maximize the quality and purity of the produced hydrogen; the green hydrogen production process relies on measuring multiple parameters as extensively as possible and using the resulting data to inform Plant Operators.
AquaGas online analysers are suited to a large range of applications within the GH2 industry providing real time gas stream composition at key locations:
- Upstream or downstream of the electrolyser
- At mixing stations or injection points
- Along the natural gas pipeline
- At customer sites just upstream of burners
When used to their full extent, the expanded capabilities offered by accurate and reliable analysers can bring real benefits by, optimising efficiency and safety, and providing fast access to detailed data and an accurate real time overview of the operating conditions.
SmartCEMS® GH2
Committed to a better environment, AquaGas Pty Ltd is proud to supply and support a broad product range featuring a line of analysers and gas detection systems tailored to the GH2 industry. Already selected by several of the main actors in the green hydrogen industry, AquaGas analysers offer exclusive features implemented to full fil the needs of today’s Green Hydrogen production.
Keeping an eye on gas quality with the SmartCEMS® GH2.
Having the hydrogen and oxygen measurements available in real time ensures greater predictivity also facilitates proactive maintenance, allowing process problems to be resolved before they escalate.
The SmartCEMS® GH2 sensor technology provides real-time continuous and simultaneous monitoring of H2 and O2 into GH2 gas streams. With fast response times and no cross-sensitivity to any other gases in the stream, including CO and H2S, the SmartCEMS GH2 does not require reference or carrier gas systems.
The SmartCEMS® GH2 combines Thermal Conductivity Detection, Electrochemical and Paramagnetic technologies in the same analyser resulting in unique measurement possibilities including complex gas sensors configurations with a large selection of dynamic measuring range (ppm to %).
The Smart CEMS® offers multiple sensor and method configurations suited to the GH2 industry. Here are the measuring parameters for the most common gases. For other gases or different measuring ranges (MR), please consult us.
| GAS | ANALYSIS METHOD | RANGE | RESOLUTION | ACCURACY | TIME (T90) |
|---|---|---|---|---|
| H2 Hydrogen | Electrochemical Sensor | 2 000ppm | 1ppm | ± 10ppm abs. or 5% rel. | 50 sec |
| H2 Hydrogen | Electrochemical Sensor | 20, 000ppm | 1ppm | ± 10ppm abs. or 5% rel. | 50 sec |
| H2 Hydrogen | TCD Thermal Conductivity Detector | 10% | 0.1% | ± 0.5% abs. or 5% rel | 50 sec |
| H2 Hydrogen | TCD Thermal Conductivity Detector | 25% | 0.1% | ± 0.5% abs. or 5% rel | 50 sec |
| H2 Hydrogen | TCD Thermal Conductivity Detector | 50% | 0.1% | ± 0.5% abs. or 5% rel | 50 sec |
| H2 Hydrogen | TCD Thermal Conductivity Detector | 100% | 0.1% | ± 0.5% abs. or 5% rel | 50 sec |
| O2 Oxygen | Electrochemical, Partial Pressure | 20.95% | 0.01% | ± 0.1% abs. or 5% rel. | 45 sec |
| O2 Oxygen | Electrochemical, Partial Pressure | 100.00% | 0.01% | ± 0.1% abs. or 5% rel. | 45 sec |
| O2 Oxygen | Paramagnetic | 25.00% | 0.01% | ± 0.1% abs. or 5% rel. | 45 sec |
| O2 Oxygen | Paramagnetic | 100.00% | 0.01% | ± 0.1% abs. or 5% rel. | 45 sec |
Available in single or multistream configuration, the SmartCEMS GH2® associated gas sampling and conditioning system features a multistage particulate filtration system, a powerful dew point stabilizer (Peltier, Nafion or dual outputs), a variable speed sampling pump and continuous removal of sample condensates.
In addition to its exclusive analytical capabilities, the SmartCEMS concept offers an ease of use for operation and maintenance tasks. All system components are field replaceable including the measuring cells delivered pre-calibrated to site. The SmartCEMS GH2® offers enhanced simplicity, making it easier for operators at any level of experience to access or relay key operational and maintenance-related data. This concept prevents unnecessary downtime and minimizing the risk of potential damage to key process plant or impaired hydrogen quality.
The inclusion of features such as remote connectivity allows the fast collection of diagnostics information, with engineers able to perform actions such as fault tracing or changes to an instrument’s configuration without having to be physically present.
IEC conformity
AquaGas analysers for the GH2 industry complies in all aspects with the IEC60079-2 standards. AquaGas online analysers for the GH2 industry are available in Purged and Pressurised (P&P) enclosure or IECEx certified version.
AquaGas is supporting the global industrial community with high performance environmental and process monitoring systems (Continuous Emissions Monitoring Systems, Air Quality Monitoring Systems, Online process analysers, Water Quality Monitoring Systems and tunnel sensors) specifically designed and built to meet your application requirements.
