Method for the purification of alkanes
AssigneeBASF SE
InventorTimo Ott
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Abstract
The present invention relates to a method for the purification of alkanes, especially methane, wherein an alkane comprising impurities, especially methane, is reacted with an active compound, optionally in the presence of sulfur trioxide, whereby the impurities are removed. The present invention furthermore relates to the use of the active compound and sulfur trioxide in the purification of alkanes, especially methane.
Claims11
A method for the purification of methane, comprising contacting an impure methane with an active compound comprising a heterolytically cleavable bond between two atoms, each selected from the group consisting of nitrogen, phosphorus, sulphur and oxygen, wherein the active compound corresponds to formula (I)
- ALK—SO2—O—O—X (I)
- or formula (II)
- ALK—SO2—O—O—SO2—X (II)
- wherein ALK is a branched or unbranched alkyl group,
- X is hydrogen, zinc, aluminium, an alkali or alkaline earth metal, and
- obtaining purified methane,
- wherein the impure methane is methane comprising higher alkane impurities.
Dependencies are inferred from the claim text.