Marine Diesel Emissions SO2 Monitoring
Measure SO2 Accurately with Perma Pure’s Nafion™ Based Sample Conditioning Systems
Perma Pure offers Nafion™ based Sample Conditioning Systems and Nafion™ Dryers to ensure the accuracy of SO2 measurements. According to MEPC 184(59) –The Guideline for Exhaust Gas Cleaning systems, SO2 can be measured at the output of the wet scrubber for compliance in case the vessel operator does not choose to burn fuel with 0.1% sulfur content in ECAs (Emission Control Areas). Because the level of SO2 is so low coming out of the scrubber, a peltier based cooler is not able to condition the sample properly without the low levels of SO2 present disappearing in the condensate. Only Sample Conditioning Systems using Perma Pure’s Nafion™ gas dryers eliminate the moisture in the sample in the vapor phase, fully preserving the SO2 in the sample for accurate analysis.
Perma Pure offers the following product options for Marine So2 Analyzers:
Indi-GASS Sample Conditioning System for SO2
The IndiGASS Marine Gas Sample Conditioning System – With a rugged Nema / Type 4x corrosion resistant enclosure especially suited for Marine environments, the Indi-GASS™ system prepares hot gas sample streams for high performance SO2 gas analysis. The IndiGASS remove particles, acid mists, and water vapor from the exhaust gas stream without any loss of SO2. Nafion™ based systems are the only products that can remove moisture from the sample stream without affecting the SO2 content. At low sulfur levels, traditional coolers loose up to 90% of the analyte and cannot be used for accurate measurements. Link to Perma Pure IndiGASS Sampling Systems Information.
PD Series Nafion™ Gas Sample Dryer
The PD (Polytube Dryer) Series transfers moisture from one gas stream to a counter-flowing dry purge gas stream, much like a shell-and-tube heat exchanger transfers heat, using multiple Nafion™ tubes. These are used in the IndiGASS and are chosen by OEM manufacturers of sample conditioning systems worldwide. A wide range of lengths and tube diameters is available to cover the sample gas flow range of 1-40lpm. They are know for their high performance and long-term reliability in the world’s toughest CEM applications. Link to PD Series