Test & measurement
SFP site, located in Westdorpe, The Netherlands. Image credit SFP
under challenging wet conditions was an additional hurdle, requiring analysers that could function effectively despite high relative humidity in both the biogas feed and permeate flows. Moreover, compliance with ATEX zones and safety requirements in biogas facilities, had to be ensured. Conducting in-situ analysis was also vital, minimising the need for new analysis lines and providing a more accurate representation of real-time conditions. Lastly, the analysis was intended to be temporary, necessitating easily implementable and removable analysers that could adapt to evolving requirements during the assessment process.
THE SOLUTION To surmount the array of challenges posed by the biogas upgrading assessment, Pentair joined forces with Vaisala, utilising their
extensive experience in the field, to propose a strategic solution for the evaluation. The cutting-edge Vaisala MGP261 and 262 multigas probes were recommended, which proved to be instrumental in addressing the specific requirements of this assessment. The MGP261 and 262 multigas probes offered a remarkable capability to provide real- time process values, within the defined levels of
accuracy and ranges for both CH4 and CO2. A significant advantage was their adaptability to challenging wet conditions, ensuring reliable performance even in high-humidity environments - a crucial factor given the nature of biogas processing. In addition, these probes were simple to install, and comply with the ATEX and safety regulations of biogas facilities. By synergising the data obtained from the biogas feed, retentate, and permeate streams, a
comprehensive analysis of the entire process was conducted. This holistic approach allowed for a thorough assessment, enabling a deep understanding of the dynamics and efficiency of the biogas upgrading system. The analysis revealed that Pentair's process design conformed rigorously to the specified design criteria. This validation provided strong assurance to SFP that the biogas upgrading system was functioning precisely as intended, in alignment with the set objectives and performance expectations. The MGP261 and 262 multigas probes delivered accurate and precise measurements throughout the assessment period. Accurate
measurement and optimisation of CH4 and CO2 levels enhance the efficiency and sustainability of the biogas upgrading process.
“We are committed to sustainable progress, and we always strive to prevent revenue losses for our customers by applying rigorous controls,” Machiel van Essen explains. “Our biogas upgrading plants also reduce methane emissions which we measure with Vaisala MGP261 and 262 multigas instruments to optimise the purification process. This way, we contribute positively to the energy transition and sustainability goals.”
SUMMARY In summary, the collaboration between Pentair and Vaisala, leveraging the MGP261 and 262 multigas probes, demonstrated the effectiveness of these instruments in verifying the performance of the biogas upgrading system at the Sustainable Fuel Plant site. The ease of installation and their reliable performance make these probes a valuable extension of Pentair's process analysis kit. This solution has the potential to be offered to Pentair customers in the future, enabling the tracking of both process and material performance, aligning with Pentair's commitment to sustainable and responsible solutions in the field of gases.
Vaisala Instrumentation Monthly February 2024
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