C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
23/360, 260/719.
C07C 7/11 (2006.01) C10G 5/04 (2006.01)
Patent
CA 1215217
ABSTRACT OF THE DISCLOSURE A continuous process is described for extracting a raw inlet natural gas stream with a physical solvent, flashing the rich solvent, and selectively rejecting a consecutive molecular weight string of C1-C4 components from at least a portion of the off-gas flashed stream or streams. The process produces: (a) a liquid C2+ hydrocarbon product, having a composition that is selectively adjustable to substantially any selected degree as the liquid market price for a low molecular weight C2-C4 component or string of components falls below the fuel price thereof, and (b) a sweet, dry residue natural gas stream of pipeline quality which includes the rejected C1-C4 hydrocarbon components. If the liquid market price of the C3 and/or C4 components is below the fuel price thereof while the liquid market price of a lower molecular weight component is not, the C1-C4 components are further extracted, flashed, and split before returning the desirably priced component or components to the liquid product.
443043
El Paso Hydrocarbons Company
Kirby Eades Gale Baker
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