Chromatotec Group

- H2S / COS / CS2 / SO2 / RSH Sulphur Compounds Analyzer

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Automated online analysis & monitoring of Sulphur Compounds: H2S / COS / CS2 / SO2 / RSH. Chroma S is a fully automatic isothermal gas Chromatograph for the analysis & monitoring of sulphur compounds.

  • Continuous, uninterrupted sampling 
  • Sample is injected into column for separation
  • Controlled oven selects optimum temperature based on application
  • detection achieved by a sulphur specific photometric double flame detector

  • The double flame ensures no quenching occurs
  • Automatic linearization of compounds
  • Identification of compounds is based on their retention time (Elution from the column)
  • Automatic data validation as standard with the internal permeation tube

Chromatotec developed software system allows :

  • Remote monitoring
  • Full traceability through archiving of results and QC
  • Set up and control of threshold alarms
  • Export of data MODBUS / MGS1 / 4-20mA /0-10V

  • Automatic data transfer through:
    • Modbus or MSG1 communication protocol
    • Analog 4-20mA or 0-10V output
  • Hydrogen Generator
  • Zero Air Generator
  • Multiple stream analysis with Multiplexer
  • Dilution system
  • Heated lines

Compounds Analysed:
Specific sulphur compounds analysis H2S, Me-SH, Et-SH, Isopropyl-SH, Npropyl-SH, 2-butylSH, Terbutyl-SH, DMS, DES, DMDS, COS, CS2 …

Detection Limit:

  • 4 ppb double Sulphur Compounds (DMDS / CS2 etc..)
  • 7 ppb single Sulphur Compounds (H2S DMS etc..)

Detection Range: (selectable ppm / ppb)

  • 4 ppb to 5 ppm (Low Range)
  • 100 ppb to 100 ppm (High Range)

Relative Standard Deviation:

  • RSD < 5% on concentration over 24hrs
  • RSD < 1% on Retention Time over 24hrs

Data Management:

  • Full storage of chromatograms & results
  • All analyses date & time stamped individually

Cycle Times:

  • Cycle times are dependant on application
  • Example:
    • H2S plus COS - 200 secs
    • Total Sulphur - 600 secs

Gas Supply:

  • Carrier Gas - Air or N2 3 bar (5mlLmin) 1/8’’
  • Sample Inlet - 1 Bar or ambient pressure (airmopump)
  • Detector
    • H2 at 2 Bar (70 ml/min) 1/8’’
    • Air at 3 bar (80 ml/min) 1/8’’

Power Supply:

  • Main: (230V / 50Hz) or (115V / 60Hz)
  • Battery: 24V (as option)
  • Consumption: 250W (+50W for computer)

Dimensions and Weight:

  • Rack: 482mm (19’’), Height: 177,8 mm (4U) or 222 mmm (5U), Depth: 600mm
  • Weight: 22 kg (With integrated computer)

  • The medical industry Impurities in air ( chromaCO )or O2 or N2O. Formaldehyde or ETO or CO.
  • Sulfur compounds Analysis in refinery The problem : Natural gas is becoming a very important energy source. Due to their human toxicity and corrosive properties (catalytics), the volatile sulfur compounds, constituants of the gas, (...)
  • CHROMA S application: emission monitoring in a paper mill The paper industry uses large quantities of sulphur substances particularly during the process of cellulose cooking (Kraft burning). The release of these substances in the air is an issue for the (...)
  • Process optimisation The sulphur compounds such as hydrogen sulphide or mercaptans are present in the industrial environment and generate not only smells to be treated in an environmental purpose but also represent (...)
  • Pure Gas Analysis There are different modes of CO2 production frequently used in foods and beverages industry. These various CO2 production mechanisms induce a variety of specific impurities that have to be (...)
  • chromaS : extension of range tanks to linearisation For sulfur compounds analyzed, the signal response is not linear. Intensity emission is not proportional to sample amount. It is an exponential form in agreement with FPD detector theory. To (...)
  • chromaS : instrument caracteristics ChromaS is an industrial GC with dual-flame photometric detector (FPD) : first hydrogen-rich flame to decompose VOC samples, second to reduce the sulfur compound to S2 species which (...)
  • chromaS application: emission monitoring in a paper mill The paper industry uses large quantities of sulphur substances particularly during the process of cellulose cooking (Kraft burning). The release of these substances in the air is an issue for (...)
  • Continuous analysis of sulfur compounds in waste water Analysis with the chromaS of sulfur compounds before and after a deodorization installation by chemical cleaning Selective analysis of : H2S, CH3SH, C2H5SH, DMS, DMDS, CS2 : (...)
  • Chroma S 5 ppb for Chinese market Chromatotec has made a new application with Chroma S especially for the Chinese market : This chromaS 5 ppb is able to measure : H2S, MM, EM, DMS, CS2, DES, DMDS, SO2. Low Detection Limit 5 (...)
  • Metrology and on-line Gas Chromatography on sulfur compounds in Natural Gas Transport natural gas companies require to control qualitatively and quantitatively odorants species in natural gas for safety reasons. Chromatotec has introduced the energyMedor which is (...)

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