HELIUM-CONTAINING NATURAL GAS HELIUM ENRICHMENT METHOD Russian patent published in 2018 - IPC B01D53/24 F25J3/08 C01B23/00 

FIELD: oil and gas industry.

SUBSTANCE: invention relates to the oil and gas and chemical industries and concerns a method for the helium-containing natural gas enriching with helium. Method comprises stages, at which providing the channel made in the form of at least one screw-like single-volume spiral consisting of at least one turn, introducing the helium-containing natural gas into the channel as the main stream, ensuring the main stream flow laminarity, ensuring the contained in the main stream helium redistribution, by means of centrifugal force with helium saturation of that main flow portion, which is located closer to the flow rotation center, completely separating saturated with helium part of the main stream from the remaining stream containing the main stream heavy components, using the partition of such shape and installed in the channel so, that minimum resistance to the streams flow is ensured, providing the helium-saturated flow laminarity, providing the contained in the helium-saturated flow helium redistribution, by means of centrifugal force with helium enrichment of that helium-saturated stream part, which is located closer to the streams rotation center, taking the helium-enriched stream from the helium-saturated stream, which passes along the closest to the streams rotation center channel inner surface, at that, the taking is carried out without the helium-saturated flow laminarity violation.

EFFECT: technical result is provision of the helium-containing gas helium enrichment with the characteristic for natural gases low content of helium, in the gas production industrial volumes, as well as ensuring possibility of the increase in the helium production technology efficiency.

8 cl, 2 dwg