Applikationen

In den letzten Jahren gab es erhebliche Anstrengungen, die Umweltauswirkungen von Kraftstoffen durch Verbesserungen der Kraftstoffqualität zu verringern. Die Bestimmung der wichtigsten Qualitätsparameter von Benzin, nämlich Research-Oktanzahl (RON, ASTM D2699-19), Motor-Oktanzahl (MON, ASTM D2700-19), Anti-Klopf-Index (AKI), Aromatengehalt (ASTM D5769-15), und Dichte erfordern herkömmlicherweise mehrere unterschiedliche Analysemethoden, die aufwändig sind und geschultes Personal erfordern. Dieser Anwendungshinweis zeigt, dass der XDS RapidLiquid Analyzer, der im sichtbaren und nahinfraroten Spektralbereich (Vis-NIR) arbeitet, eine kosteneffiziente und schnelle Lösung für die Multiparameteranalyse von Benzin bietet.

In refineries, high octane products are desired since they are used to produce premium gasoline. Catalytic reforming converts heavy naphtha into a high octane liquid product called reformate (a mixture of aromatics and iso-paraffins C7 to C10). The reformate must be constantly monitored to ensure high throughput along the refining process. Traditionally, the octane numbers can be measured by two different methodologies: Inferred Octane Models (IOM) and laboratory octane engine analysis. However, these do not provide «real-time» results and require constant maintenance and human intervention to adapt to current operation conditions. «Real-time» analysis of the octane number in fuels can be performed online via near-infrared spectroscopy (NIRS) technology, which fits well within the international standards (ASTM). Utilization of a Metrohm Process Analytics NIRS XDS Process Analyzer (ATEX version) in conjunction with a sample preconditioning system makes analysis of the octane number simple, fast, and reliable, allowing quick adjustments to the process for a better quality product and higher profitability.