ABB introduces single-device analyser for four key gas impurities

ABB has launched Sensi+ NG, the latest generation of its multigas analyser for natural gas and biogas applications. The new device measures oxygen (O₂), hydrogen sulphide (H₂S), water vapour (H₂O) and carbon dioxide (CO₂) simultaneously, replacing the need for multiple separate analysers.

The expanded functionality builds on the first Sensi+ model, adding continuous real-time O₂ monitoring to the existing H₂S, H₂O and CO₂ capabilities. The system is aimed at natural gas and biogas producers, as well as upstream and midstream pipeline operators, who must monitor gas quality before injection into transmission networks.

Gas impurities remain a major operational concern because they can damage pipelines through corrosion. ABB says the updated analyser is designed to help operators comply with strict pipeline specifications for biomethane and natural gas injection.

The original Sensi+ was developed jointly with a leading North American gas pipeline operator. According to Stefan Parmentier, Global Product Manager, Industrial ICOS, ABB Measurement & Analytics, “The original solution was already a revolution on the market with its ability for multi-gas analysis, easy installation, operation and maintenance, as well as a smaller footprint and reduced operating expenses. The enhanced Sensi+ NG is a robust and smart device that builds on this legacy by continuously monitoring the four most critical gas impurities, ensuring product flow and protecting the safety of facilities, the environment and people.”

Sensi+ NG is based on ABB’s OA-ICOS™ laser technology, which provides rapid readings and supports installation of a single analyser across multiple applications.

By consolidating four measurements into one device, ABB aims to reduce maintenance requirements, calibration frequency and the number of instruments needed on-site. The system is designed to operate without consumables and with minimal long-term drift, which makes it suitable for remote or rural biogas facilities where maintenance access is limited.

Source and Photo: ABB