Q: What is gas analysis?

Gas analysis is the precise measurement and evaluation of the composition of a gas mixture. This involves determining the concentrations of individual gas components as well as parameters such as calorific value, Wobbe index, or gas density. We develop measurement systems for this purpose that are based on either gas chromatography or correlative measurement methods, depending on the application. These methods enable a reproducible determination of gas quality even under varying process conditions. Our solutions are used in natural gas networks, hydrogen applications, biogas plants, and industrial process facilities, among others. Compared to simple single-gas sensors, gas analysis provides significantly more comprehensive information about the overall gas composition. This allows billing, quality verification, and process control to be carried out on a reliable data basis. Our systems support continuous, real-time gas analysis and, depending on the application, meet the requirements of relevant standards such as DIN EN ISO 6974 or DIN EN ISO 6976 for determining gas composition and fuel gas parameters. With a high-performance gas analysis system, operators receive precise measurement values for process control, energy billing, and monitoring of gas quality over long periods of operation.

Question 1

What is gas analysis?

Accepted Answer

Gas analysis is the precise measurement and evaluation of the composition of a gas mixture. This involves determining the concentrations of individual gas components as well as parameters such as calorific value, Wobbe index, or gas density. We develop measurement systems for this purpose that are based on either gas chromatography or correlative measurement methods, depending on the application. These methods enable a reproducible determination of gas quality even under varying process conditions. Our solutions are used in natural gas networks, hydrogen applications, biogas plants, and industrial process facilities, among others.

Compared to simple single-gas sensors, gas analysis provides significantly more comprehensive information about the overall gas composition. This allows billing, quality verification, and process control to be carried out on a reliable data basis. Our systems support continuous, real-time gas analysis and, depending on the application, meet the requirements of relevant standards such as DIN EN ISO 6974 or DIN EN ISO 6976 for determining gas composition and fuel gas parameters. With a high-performance gas analysis system, operators receive precise measurement values for process control, energy billing, and monitoring of gas quality over long periods of operation.

Question 2

How does precise gas analysis work in industry?

Accepted Answer

Precise gas analysis in the industry determines the composition and selected physical properties of a gas mixture. Depending on the measurement task, RMG uses process gas chromatographs or correlative measurement methods for this purpose. Among other parameters, thermal conductivity, dynamic viscosity, and infrared absorption are measured. The measured values are used to calculate and monitor relevant gas parameters, including gas composition, density, calorific value, and Wobbe index. Continuous monitoring enables operators to detect fluctuations in gas composition early on and to reliably monitor and control processes. RMG gas quality measurement systems are designed for stationary use in gas networks, metering stations, and industrial facilities. Anyone looking to purchase robust Gas Analysis Equipment will find the right solution at RMG.

Question 3

Which sensors are used for gas analysis?

Accepted Answer

Various measurement principles and sensors are used in gas analysis. Depending on the measurement task, RMG employs infrared measurements, thermal conductivity measurements, and methods for determining dynamic viscosity. The selection depends on the gas mixture, the gas components to be determined, and the requirements of the respective measurement task.

Infrared measurements , for example,are suitable for determining infrared-active gas components. Measuring thermal conductivity and dynamic viscosity provides additional information about the properties of a gas mixture. With correlative measurement methods , relevant gas parameters can be determined by combining multiple measured variables, even without complete chromatographic separation. This results in compact and low-maintenance Gas Quality Measurement systems for the continuous monitoring of natural gas, biogas, and hydrogen-containing gas mixtures.

Selecting the appropriate measurement principle is particularly important for biogas analysis equipment. Only the right measurement technology delivers reliable and reproducible results under varying operating conditions. RMG relies on robust Gas Quality Measurement systems that operate with precision even under demanding operating conditions.

Question 4

Which gases does a modern gas analysis detect?

Accepted Answer

The gases detected by a modern gas analysis system depend on the measurement method used and the specific instrument configuration . RMG gas quality measurement systems detect, among other things, methane, carbon dioxide, nitrogen, oxygen, hydrogen, and other hydrocarbons, or derive these from the measured properties of the gas mixture. Process gas chromatographs separate individual gas components and determine their concentrations. Correlative measurement systems, on the other hand, measure physical properties such as thermal conductivity, dynamic viscosity, or infrared absorption and use these to calculate relevant gas parameters. Depending on the measurement method, this allows for the continuous monitoring of gas composition or specific parameters. Typical applications include natural gas networks, biogas injection, hydrogen blending, and industrial fuel gas supplies. Which gas components are actually determined depends on the type of gas, the measurement range, and the required output values. Whether for natural gas analysis, gas analysis in industrial processes, or Gas Analysis Equipment for biogas —precise measurement results are the foundation for reliable process monitoring. We offer suitable Gas Quality Measurement systems and measurement technology for the continuous monitoring of gas quality and gas composition.

Question 5

Which industries rely on industrial gas analysis?

Accepted Answer

Gas analysis is used wherever the composition and quality of gases must be reliably determined. Industrial gas analysis is primarily used in the energy sector, gas supply, the chemical industry, environmental technology, metal processing, food production, and in gas-consuming production facilities. Additional applications include the processing and injection of biogas, as well as the use of hydrogen-containing gas mixtures. Our gas quality measurement systems monitor gas quality in transmission networks, distribution networks, transfer stations, and industrial metering facilities. The measured data forms the basis for energy billing, burner control, quality assurance, and compliance with permissible feed-in parameters. Depending on the application, the systems are adapted to the gas type, the measurement task, the process conditions, and the required parameters. Continuous gas analysis helps operators reliably monitor gas quality and operate industrial processes safely and efficiently.

Question 6

How accurate is gas analysis?

Accepted Answer

Exactly how Gas analysis works depends on the measurement method used and the specific application. We use measurement systems based on gas chromatography as well as correlative methods for determining thermal conductivity, dynamic viscosity, and infrared absorption. This allows individual gas components to be reliably detected and provides stable measurement values even when gas properties fluctuate. The analysis is reproducible and suitable for determining fuel gas parameters as well as gas composition. Compared to simple single-gas sensors, our gas analysis technology offers the advantage of measuring multiple parameters in a single system and deriving reliable results for billing, quality control, and process control. The calculation of calorific value and other parameters is based on recognized standards such as DIN EN ISO 6974 and DIN EN ISO 6976. This creates a uniform data basis for network operators, plant manufacturers, and industrial users. In process gas analysis , our systems support the safe operation of natural gas networks, hydrogen applications, biogas plants, and industrial energy and production processes. This provides operators with consistently reliable measurement data for monitoring gas quality and ensuring cost-effective plant operation.

Question 7

How is gas analysis calibrated?

Accepted Answer

Before performing a precise gas analysis, the measurement system is calibrated using reference gases of known composition. During this process, the measured values are compared with defined target values and adjusted as needed. Calibration is performed according to the measurement principle used, such as NDIR measurement, gas chromatography, or correlative methods. This ensures that the measurement results remain reproducible and traceable even during long-term operation.

We develop our systems for consistently stable gas quality measurement under industrial operating conditions. Compared to simple sensor solutions, our measurement methods offer greater long-term stability and reliable detection of multiple gas components. For applications in the energy supply and process industries, calibration and calculation are based on recognized standards such as DIN EN ISO 6974 and DIN EN ISO 6976. This results in reliable measurement data for determining gas composition, fuel gas parameters, and billing metrics.

Regularly calibrated gas analysis increases operational safety and reduces measurement deviations over long periods of use. Our solutions are used in natural gas networks, biogas plants, hydrogen applications, and industrial processes. In these settings, precise gas monitoring supports quality control, process control, and the reliable assessment of gas quality.

Question 8

What standards apply to gas analysis?

Accepted Answer

Depending on the application, various national and international standards apply to reliable Gas analysis. When analyzing natural gas, we follow, among other standards, DIN EN ISO 6974 for determining gas composition and DIN EN ISO 6976 for calculating the combustion value, calorific value, density, and Wobbe index. In the field of emissions measurement technology, additional requirements from DIN EN 15267 also apply. These standards provide a uniform basis for comparable and reproducible measurement results.

We design our measurement systems to meet the requirements of industrial applications and to integrate seamlessly into existing process control systems. Compared to simple sensor solutions, standards-compliant gas analysis enables a traceable assessment of gas quality as well as a reliable data foundation for energy billing, quality documentation, and process control. This enhances the comparability of measurement results even over long periods of operation.

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