Odorant mixture for odorless gas fuel

Details Odorant mixture for odorless gas fuel Odorant mixture for odorless gas fuel

C - Chemistry, Metallurgy

10

L

C10L 3/00 (2006.01) C10L 3/10 (2006.01)

Patent

CA 2625524

The invention concerns a composition for use in particular as odorant of a gas fuel, more particularly of natural gas, comprising: 0.1 to 49.9 particles by weight of at least one alkyl sulphur (I) of formula: R1-S-R2, wherein R1 and R2, identical or different, represent: an alkyl radical comprising 1 to 4 carbon atoms; or R1 and R2 together with the sulphur atom to which they are bound represent a saturated or unsaturated ring including 3 to 5 carbon atoms, optionally substituted by a C1-C4 alkyl or C1-C4 alkenyl; 50 to 99.8 parts by weight of at least two alkyl acrylates (II) the alkyl radicals of which comprise 1 to 12 carbon atoms, preferably 1 to 8; 0.001 parts by weight of at least one compound (III) inhibiting polymerization of the alkyl acrylates (II).

Composition utilisable notamment comme agent odorisant d'un combustible gazeux, plus particulièrement du gaz naturel, comprenant : de 0,1 à 49,9 parties en poids d'au moins un sulfure d'alkyle (I) de formule : R1-S-R2 dans laquelle R1 et R2, identiques ou différents, représentent : un radical alkyle comprenant de 1 à 4 atomes de carbone ; ou R1 et R2 pris avec l'atome de soufre auquel ils sont attachés représentent un cycle saturé ou insaturé comprenant de 3 à 5 atomes de carbone, éventuellement substitué par un radical C1-C4 alkyle ou C1-C4 alcényle ; de 50 à 99,8 parties en poids d'au moins deux acrylates d'alkyle (II) dont les radicaux alkyle comprennent de 1 à 12 atomes de carbone, de préférence de 1 à 8 ; de 0,001 à 0,1 parties en poids d'au moins un composé (III) inhibiteur de polymérisation des acrylates d'alkyle (II).

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