Industrial Raman Spectroscopy for C8 Aromatics
JINSP RS2000PAT is an online Raman analyzer developed for continuous liquid-component measurement and reaction/process trend monitoring. Its application range includes demanding chemical processes where in-situ analytical information is required.
For paraxylene production, RS2000PAT can be configured for real-time monitoring of C8 aromatic composition within adsorption separation systems.
Application
Industrial PX production commonly uses adsorption separation to separate a C8 aromatic mixture consisting of:
- P-Xylene
- M-Xylene
- O-Xylene
- Ethylbenzene
Because of the similar boiling points of these components, adsorption-based separation provides an important alternative to conventional distillation.
RS2000PAT can be deployed with industrial Raman probes positioned at selected locations in the adsorption tower. The resulting Raman measurements provide continuous information about the concentration distribution of the process mixture.
Analytical Capabilities
The system supports:
- In-situ, non-destructive measurement
- Continuous process monitoring
- Multi-component analysis
- Automatic analytical processing
- Reaction/process trend monitoring
- Industrial control-system integration
- Real-time result feedback
The standard technical configuration supports single-channel or multi-channel detection, while other channel configurations can be customized. The specified sensitivity limit is 0.01%.
Industrial Probe Configurations
For process integration, the RS2000PAT documentation specifies several PR300 Raman probe installation options.
A top-mounted reactor configuration can use a Hastelloy probe with temperature resistance from -20 to 200°C and pressure resistance up to 4 MPa. Side-mounted and process-pipeline configurations use Hastelloy C276 and customizable flange arrangements.
Control-System Integration
The analyzer provides RS485 and RJ45 Ethernet interfaces and supports Modbus communication, allowing analytical results to be transferred to industrial control systems.
PX Application Result
In the demonstrated PX application, Raman analysis is used to identify PX within the complex C8 aromatic background. The application reports a PX quantitative deviation of less than 0.07%.
This analytical information can be used to monitor concentration distribution, support process-parameter adjustment and optimize adsorbent operating cycles.
Suitable For
- PX production units
- C8 aromatic separation
- SMB adsorption systems
- Adsorption tower monitoring
- Continuous petrochemical processes
- Online liquid composition analysis
RS2000PAT provides a direct Raman-based route to continuous process composition measurement where conventional offline analysis may not provide sufficiently frequent data.
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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RS2000PAT Online Raman Analyzer for PX Process Analysis Images
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