Improving robustness and lowering maintenance on Reformulyzer M4 with next generation Olefin Traps

Importance of the topic

The precise separation and quantification of olefins, paraffins, naphthenes and aromatics is critical for refinery quality control, regulatory compliance and optimal engine performance. Robust analytical methods reduce downtime, improve throughput and ensure reliable data in petrochemical laboratories.

Objectives and Study Overview

This application note introduces next-generation Olefin Traps integrated into the Reformulyzer M4 system. The study aims to extend trap lifetime beyond 1000 FCC samples, broaden linear response up to 75 % olefins, eliminate dilution protocols and lower overall maintenance and operating costs.

Methodology and Used Instrumentation

The Reformulyzer M4 platform performs PONA group type analysis in line with ASTM D6839 and EN ISO 22854. Key enhancements include:

• Capillary and micro-packed columns with split/splitless inlet to reduce sample volume by 20× and shorten analysis time.
• Optimized conditioning and backflush desorption of the Olefin Trap to prevent irreversible adsorption and light component breakthrough.
• A sequence of polar columns (C4–C12 separation), A/E traps and 13X column routing, culminating in FID detection.

Instrument coverage extends to C4–C11 paraffins and olefins, C5–C11 naphthenes and C6–C11 aromatics, plus C1–C6 oxygenates. Compliance spans ASTM D6839, EN ISO 22854, ASTM D5443 and IP566. The system is offered in 120 V, 200 V and 230 V configurations.

Main Results and Discussion

Performance was validated using FCC naphtha references with 48 % and 74 % olefins over more than 1000 and 320 injections respectively:

• Recoveries for saturates, olefins and aromatics remained within 97–102 % of reference values.
• Relative standard deviations for total olefins below 0.3 % even at high olefin concentrations.
• No detectable trap degradation after extended exposure to olefin levels up to 75 %.

Benefits and Practical Applications

The redesigned Olefin Trap delivers:

• Longer operational lifetime, reducing laboratory downtime and maintenance frequency.
• Removal of sample dilution steps and specialized high-olefin modes.
• Cost savings through fewer consumables and simplified workflows.
• Consistent, high-precision data over extended periods for QA/QC and process control.

Future Trends and Possibilities

Emerging developments may focus on further trap miniaturization, integration with advanced detectors, digital diagnostics for predictive maintenance and expansion into biofuel and alternative feedstock analyses.

Conclusion

The Reformulyzer M4 with next-generation Olefin Traps offers superior robustness, extended lifetime and high accuracy across a wide olefin concentration range, streamlining PONA analyses in modern petrochemical laboratories.

References

No external literature citations were provided. Method compliance references include ASTM D6839, EN ISO 22854, ASTM D5443 and IP566.