Product Description
See C8 Aromatic Concentration Changes as They Happen
Paraxylene production is highly dependent on precise control of the C8 aromatic separation process. Small changes in composition can affect separation performance, adsorbent utilization and overall PX production efficiency.
RS2000PAT Online Raman Analyzer is designed to provide continuous composition information directly from the process, helping production teams move from periodic laboratory testing toward real-time process monitoring.
Why Real-Time PX Measurement Matters
C8 aromatics contain four closely related compounds:
- Para-xylene (PX)
- Meta-xylene (MX)
- Ortho-xylene (OX)
- Ethylbenzene (EB)
Their similar physical properties make conventional separation challenging. In simulated moving bed adsorption systems, process performance depends on maintaining an appropriate concentration profile through different sections of the adsorption system.
Offline chromatographic testing provides valuable analytical information, but the typical cycle time of tens of minutes can create a gap between the actual process condition and the available analytical result.
RS2000PAT is designed to close this information gap.
Raman Monitoring Inside the Adsorption Tower
Industrial Raman probes can be positioned at selected locations within the adsorption tower. The analyzer continuously acquires Raman signals and extracts quantitative information from the C8 aromatic mixture.
This enables:
Continuous measurement
Monitor composition changes without relying exclusively on periodic sampling.
PX quantification
Identify and quantify PX within a complex C8 aromatic background.
Concentration-profile monitoring
Observe composition at different locations in the adsorption system.
Control-system connectivity
Send measurement results directly to DCS or other industrial control systems.
Designed for Industrial Operation
RS2000PAT supports in-situ, non-destructive analysis and continuous operation. Its explosion-proof cabinet configuration incorporates temperature control, automatic calibration, self-diagnosis and positive-pressure protection for demanding plant environments.
For the demonstrated PX application, the reported quantitative deviation for PX is below 0.07%.
Operational Benefits
- Real-time concentration information can help process engineers:
- Adjust operating parameters faster
- Improve visibility of adsorption performance
- Optimize adsorbent operating cycles
- Reduce dependence on manual sampling
- Reduce laboratory analysis workload
- Support more stable PX production
With Raman spectroscopy positioned directly at the process, PX concentration becomes continuously visible rather than available only after an offline analysis cycle.
Technical Parameters:
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Model number
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RS2000PAT
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Number of detection channels
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Single channel, monitoring 1 position only
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Device dimension
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800 mm(width)× 900 mm(depth)× 1300 mm(height)
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Operating temperature
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-20 ~ 50 ℃
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Explosion Proof (Main Unit)
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ExdbebibmbpxbIICT4Gb / ExtbibmbIIICT135℃Db
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Thermostat
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Three-level temperature control system design can operate stably for a long time in an environment of -20 ~ 50 ℃ , and is suitable for online monitoring environments in different factories
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Connectivity
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RS485 and RJ45 network ports provide Mod Bus protocol, can be adapted to many types of industrial control systems and can feedback results to the control system.
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Probe
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1pc standard immerssion fiber optic probe and 1pc non-immersion probe
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Multi-component monitoring
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Simultaneously obtain the content of multiple components during the reaction process, collect single-channel signals continuously in real-time, and the substance content and change trend can be given in real-time, enabling intelligent analysis of unknown components during the reaction process.
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Consistency
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Patented algorithms for device calibration and model transfer ensure data consistency across multiple devices
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Smart modeling
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Intelligent matching of optimal algorithms, or customize multiple machine learning models according to the needs of one-click automatic modeling
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Self-learning modeling
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Equipped with self-learning modeling capabilities, it eliminates the need for sampling and manual modeling. It can intelligently select optimal collection parameters, monitor changes in various components within the system in real-time, automatically identify and assist in analysis. This aids in understanding and monitoring reactions without the need for manual intervention
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24h working
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Built-in real-time automatic calibration and self-test, thermostatic control and positive pressure protection. Works well in high and low temperatures, explosive and corrosive environments.
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% Relative humidity
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0~90%RH
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Power supply
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900 W (max)；500 W (typical running)
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Pre-heating time
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＜60 min
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Company Introduction:
JINSP COMPANY LIMITED is a professional enterprise focusing on spectral analysis technology. Rooted in Tsinghua University, it has accumulated 19 years of technical expertise with over 200 patent applications. The company has participated in formulating 4 national standards for Raman spectroscopy and 1 international standard, and has won authoritative awards including China Patent Excellence Award, Geneva International Invention Award, and Zhu Liang-Yi Analytical Instrument “Innovation Achievement Award”.
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