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D2.1 Choice for a sulphur free odorant

Polman, Erik; Vlap, Harm

This report describes the selection of a potential third sulphur free odorant for hydrogen for the research within the framework of Hydelta WP2: Odorization.

Two odorants that are already known for natural gas, namely Tetrahydrothiophene (THT) and GASODOR® S-free, were already pre-selected. After a literature search, three odorants were tested for the odour character and the odour behaviour after a selection on the properties of the odorant.

The candidate odorant 2-hexyne was ultimately selected on the basis of the following properties:

  • an unpleasant distinctive characteristic odour
  • a low odour threshold
  • low toxicity
  • sulphur-free
  • workable dosage: nominal 15 mg/m3(n), minimum 10 mg/m3(n), maximum 35 mg/m3(n).

This odorant will be further tested in the HyDelta WP2 study.

Dit project is medegefinancierd door TKI Energie uit de Toeslag voor Topconsortia voor Kennis en Innovatie (TKI's) van het ministerie van Economische Zaken, onder referentie nummer TKI2020-HyDelta.
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