Process for preventing the precipitation of elementary sulphur in riser pipes of probes for natural gas
OwnerSiegfried Peter, Georg Hartel +1inventors
InventorsSiegfried Peter, Georg Hartel, Wolfgang Bruckhoff
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Abstract
Process for preventing the precipitation of elementary sulfur in the riser pipes of probes for natural gas including a solvent for sulfur. For the dissolution of the precipitating elementary sulfur an ester of an optionally mono- or poly-unsaturated fatty acid and/or the reaction product of H.sub.2 S with an ester of a mono- or poly-unsaturated fatty acid, optionally in solution, is used. The solvent for sulfur is liquid under the conditions in the mining probe and only slightly soluble in the gas.
Claims12
A process for preventing the precipitation of elementary sulfur from natural gas which may contain hydrogen sulfide and/or carbonic acid together with elementary sulfur during the mining of the gas which comprises dissolving the sulfur in a solvent which is selected from the group consisting of esters of mono- or poly-unsaturated fatty acids;
- thioethers of said esters or mono- or poly-unsaturated fatty acids;
- the mixed reaction products of hydrogen sulfide and said esters or mono- or poly-unsaturated fatty acids in the presence of elementary sulfur;
- and mixtures thereof, said solvent being optionally used in form of a solution wherein said solvent contains 10 to 24 carbon atoms in the fatty acid component and 1 to 22 carbon atoms in the alcohol component.
Dependencies are inferred from the claim text.