Automated Sulfur Compounds Analyzer – Chroma S

Automated online analysis & monitoring of sulfur compounds: H₂S / COS / CS₂ / SO₂ / RSH

9 ₫

Chroma S is a fully automatic isothermal gas chromatograph specifically designed for the analysis and monitoring of sulfur compounds such as H₂S, COS, CS₂, SO₂, and RSH. This system integrates modern technologies to ensure uninterrupted analysis, delivering accurate and reliable results for various industrial and environmental applications.

Chroma S is applied in many fields:

  • Emission Monitoring: Measuring stack emissions and continuous emission monitoring (CEM) systems.

  • Ambient Air Monitoring: Assessing the quality of outdoor and urban air.

  • Wastewater Treatment: Monitoring gas emissions in wastewater treatment plants.

  • Odor Control: Applications in both gas deodorization and odorization processes.

  • Impurity Analysis: Evaluating the quality of pure gases, such as CO₂ and CH₄.

  • TRS Measurement: Assessing the Total Reduced Sulfur (TRS) compounds in gas.

Category:

The standard version of the system is capable of analyzing compounds such as SO₂, CS₂, H₂S, mercaptans (e.g., Methyl-SH, Ethyl-SH) and sulfides (e.g., DMS, DMDS, DES). Additionally, upon request, the system can be extended to analyze other compounds such as Isopropyl-SH, Terbutyl-SH, and can be configured specifically for COS (ChromaS-cos).

Operating Principles

  • Continuous Sampling: The system continuously collects samples without interruption, ensuring that analysis data is always up-to-date.

  • Sample Injection and Separation: The gas sample is injected into the chromatographic column where the components are separated based on their distinct chemical properties.

  • Temperature Control: The oven automatically adjusts to the optimal temperature for each application, maximizing the separation efficiency.

  • Dual Flame Detection: Sulfur compounds are identified using an optical sensor with a dual flame, a technique that prevents quenching and allows for automatic calibration.

Key Features

  • Efficient Separation and Identification: The retention time is used to identify each compound as it elutes from the column, ensuring precise analysis.

  • Automatic Data Validation: An integrated internal permeation tube automatically verifies and validates data, ensuring consistency and high reliability.

  • Automatic Calibration: The calibration mechanism ensures linear processing of compounds, optimizing the overall analysis process.

VISTACHROM® Software

Developed by Chromatotec, the VISTACHROM® software offers advanced features:

  • Remote Monitoring: Easily monitor and control the system remotely.
  • Full Traceability: Archive all data, results, and quality control (QC) parameters for complete traceability.
  • Alarm Management: Set and manage threshold alarms to quickly detect any anomalies during analysis.
  • Data Export: Supports data export via multiple protocols such as MODBUS, MGS1, or analog outputs (4-20 mA/0-10 V).

Analyzed Compounds H₂S, Me-SH, Et-SH, Isopropyl-SH, Npropyl-SH, 2-butyl-SH, Terbutyl-SH, DMS, DES, DMDS, COS, CS₂, …
Detection Limits – 4 ppb for dual sulfur compounds (e.g., DMDS, CS₂)

– 7 ppb for single sulfur compounds (e.g., H₂S, DMS)

Measurement Range – Low Range: 4 ppb – 5 ppm

– High Range: 100 ppb – 100 ppm

(Units selectable as ppb or ppm)

Relative Standard Deviation (RSD) – RSD < 5% for sample concentration

– RSD < 1% for retention time (over 24 hours)

Analysis Cycle Time 10 minutes (standard cycle; can be shortened based on application requirements)
Data Management & Storage Archives complete chromatograms and analysis results, with individual timestamps for each measurement
Carrier Gas Supply Air or N₂, 3 bar pressure, flow rate of 5 mL/min, with a 1/8 inch connection
Sample Gas Supply 1 bar pressure or ambient pressure (using an air pump)
Detector Gas Supply – H₂: 2 bar, 70 mL/min (1/8 inch connection)

– Air: 3 bar, 80 mL/min (1/8 inch connection)

Pneumatic Valve 90 mL per switching cycle
Power Supply – Main: 230V/50Hz or 115V/60Hz

– Optional: 24V battery

– Consumption: 250W (plus 50W for the integrated computer)

Dimensions – Rack: 482 mm (19 inch)

– Height: 222 mm (5U)

– Depth: 600 mm

Weight 22 kg (including the integrated computer)
Expansion Options – Automatic data transfer via Modbus, MSG1, or analog (4-20 mA/0-10 V)

– H₂ generator, “Zero Air” generator, and N₂ generator

– Multiplexer for multi-stream analysis

– Sample dilution system and heated lines

– Calibration with an internal permeation tube

TSP chromaS

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TSP chromaS-COS

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