Analytics

Topic

Gas chromatograph for the analysis of hydrocarbons.
Colorimeter for the measurement H2S.
Chemisorption for the characterization of heterogeneous catalysts.

Gas chromatographic analysis methods combined with detectors like TCD (thermal conductivity detector), FID (flame ionization detector) as well as PFPD (pulsed flame photometric detector) and MS (mass spectrometer) are applied for qualitative and quantitative analyses of permanent gases, hydrocarbons and sulfur compounds. Gaseous and liquid samples can be analyzed offline as well as online by coupling of the GC with different lab plants.

For the continuous analysis of gas concentrations in plants and systems, analyzers with NDIR (nondispersive infrared absorption), TCD (thermal conductivity detector), FID (flame ionization detector), CLD (chemiluminescence detector) as well as Micro-GCs can be applied.

Heterogeneous catalysts can be characterized by several methods available at the institute (BET, FESEM, TEM, XRD,…). This allows the correlation of experimental results on catalytic activity with the catalyst properties.

 

Services offered

 

  • Analyses of liquid and gaseous samples
  • Quantitative and qualitative calibration/validation via gas mixing pump and certified gas mixtures with defined composition
  • Support for the selection of convenient analysis methods
  • Catalyst characterization

 

Technical equipment

 

  •  Gas chromatography and mass spectrometry
    • GC/TCD: Analysis of permanent gases (e.g. H2 and CO)
    • GC/FID: Analysis of hydrocarbons (e.g. aromatic hydrocarbons)
    • GC/PFPD: Identification of sulfur components (e.g. H2S)
    • GC/MS: Identification of trace components
    • Micro-GC: Compact and portable system for analysis of permanent gases and hydrocarbons
  • Others
    • Colorimeter: Measurement of H2S
    • NDIR: Determination of CO2, CO and nitrogen oxides
    • FID: Determination of total carbon concentration
    • TCD: Measurement of permanent gases (e.g. H2  and CO)
    • CLD: Measurement of nitrogen oxides
    • Electrochemical measurement of H2S and O2
  • Gas mixing pump for multipoint calibration (test of linearity)
  • Methods for catalyst characterization (BET, FESEM, XRD, Chemisorption,…)