Abstract
AbstractA test gas generation system for complex gas mixtures designed to mimic real industrial gas matrices with traces raging from low pptv to high ppmv level and minor and main components ranging from low to high percentage levels with variable relative humidity levels (0–80 % RH) is presented. It combines different gas generation methods to study fragmentation patterns under controlled conditions by means of a proton transfer reaction time‐of‐flight mass spectrometer, the application of alternative feedstocks in catalytic processes as well as the performance of gas purification and conditioning processes.
Highlights
The global framework set out by the Paris Agreement to mitigate greenhouse gas (GHG) emissions and limit global warming is a predominant socioeconomic challenge for many high-emission industries
A E/N range between 120–140 Td has been established as a standard value, since it is a good compromise between excessive water cluster formation and product ion fragmentation [51, 59]
The introduced gas generating system will play a crucial role within the Carbon2Chemâ project dealing with concept development and feasibility studies for the application of steel mill exhaust gases as feedstock for chemical industry
Summary
The global framework set out by the Paris Agreement to mitigate greenhouse gas (GHG) emissions and limit global warming is a predominant socioeconomic challenge for many high-emission industries. To enable the application of PTR-MS for the online analysis of complex gas mixtures, it is crucial to understand the fragmentation patterns under controlled conditions e.g. at different humidity levels to validate the obtained analyses of the steel mill flue gases As it has been shown [33,34,35], humidity has a significant influence on the protonation reaction in PTR instruments. Strategies for fabrication of a gas generating system will be elaborated, which will mainly cover the following aspects required for a validation of the applicability of the chosen concepts: 1) evaluate process feasibility and catalyst poisoning due to exposure to certain compounds in flue gases; 2) assess gas purification technologies; 3) optimize and calibrate analytical techniques, proton transfer reaction time-of-flight mass spectrometry (PTR-TOF-MS) for analyzing low detection limit concentration (10-100 pptv) of compounds in steel mill flue gases
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