ODOURISING MIXTURE FOR ORDOURLESS GASEOUS FUEL Russian patent published in 2011 - IPC C10L3/00 C10L3/10 

FIELD: chemistry.

SUBSTANCE: composition contains 0.1-49.9 pts.wt alkyl sulphide of formula: R¹-S-R². R¹ and R² are identical or different and denote: an alkyl radical containing 1-4 carbon atoms; or R¹ and R² together with the sulphur atom denote a saturated or unsaturated ring containing 3-5 carbon atoms which is possibly substituted. The composition also contains 50-99.8 pts.wt of at least two acrylic esters whose alkyl radicals contain 1-12 carbon atoms, preferably 1-8 carbon atoms. The mixture also contains 0.001-0.1 pts.wt of a compound which inhibits polymerisation of acrylic esters, preferably containing a stable nitroxide radical. The composition is used to ordourise ordourless gaseous fuel. To this end, an effective amount of the composition in pure or diluted form is added to gaseous fuel. Content of the composition in the gaseous fuel ranges from 1 to 500 mg/Nm³, and preferably from 20 to 50 mg/Nm³. The composition gives gas a strong smell which enables to detect gas leakages and eliminate explosion hazards.

EFFECT: composition is highly environmentally friendly and can be used on injection stations requiring one storage reservoir, one pump and one injection nozzle, which significantly simplifies servicing.

12 cl, 3 ex