Patent ID: 11920098
Assignee: TECHNIP FRANCE
Field: Chemical engineering (Chemistry)
Classification: CPC C  B  F | IPC B  C  F

Claim 0:
1. A feed gas treating method comprising:
supplying a feed gas stream and conveying the feed gas stream into a natural gas liquids extractor;
within the extractor;
cooling the feed gas stream,
expanding in an expander the cooled feed gas stream,
separating, in a separation column, at least one stream obtained from the cooled feed gas stream, and
recovering after separation, a treated gas stream and a natural gas liquid stream;

compressing the treated gas stream in at least one compressor to form a compressed treated gas stream;
fractionating, in a fractionator, the natural gas liquid stream into a plurality of hydrocarbon cuts;
withdrawing a recycle stream in the compressed treated gas stream;
reintroducing without cooling the recycle stream into at least one of:
the feed gas stream upstream of the extraction unit,
the cooled feed gas stream, or
a stream obtained from the cooled feed gas stream, upstream of the expander.