Product Description
Continuous Composition Monitoring for Petrochemical Processes
Paraxylene is an essential feedstock for polyester fibers and PET resin manufacturing. Reliable separation of C8 aromatics is therefore a critical part of the PX production process.
JINSP RS2000PAT Online Raman Analyzer provides continuous composition monitoring for this demanding petrochemical application.
Monitoring the Four Key C8 Components
The C8 aromatic mixture includes:
p-Xylene (PX) — the target component for PX production.
m-Xylene (MX) — one of the closely related aromatic isomers.
o-Xylene (OX) — another C8 aromatic component with similar physical properties.
Ethylbenzene (EB) — present in the C8 aromatic mixture and relevant to the separation process.
The close boiling points of these components make conventional distillation challenging. Industrial PX production therefore commonly uses adsorption separation technologies.
Why Online Monitoring Is Important
The adsorption process depends on concentration information from multiple process streams and locations.
Laboratory chromatography can provide detailed compositional analysis, but when analytical cycles take tens of minutes, the measurement may not represent the current process condition.
RS2000PAT provides continuous Raman measurements directly from the process.
In-Situ Raman Measurement
The industrial Raman probe can be installed within the adsorption tower or connected to a suitable process installation. Raman spectra are acquired continuously without requiring routine sample removal.
The analyzer then applies intelligent analytical models to determine component concentrations and process trends.
Application Highlights
- Real-time PX concentration measurement
- C8 aromatic composition analysis
- In-situ monitoring
- Continuous process data acquisition
- Multi-position concentration monitoring
- DCS communication
- Automated analytical processing
The PX application reports a quantitative deviation of less than 0.07% for PX measurement.
Value for PX Plants
Continuous analytical visibility can help production teams respond more quickly to changing process conditions. It can also support optimization of adsorption cycles and reduce the operational workload associated with frequent offline sampling.
For plants looking to modernize process analytics, RS2000PAT provides a Raman-based alternative for continuous liquid composition monitoring.
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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