Method for the liquefaction of a hydrocarbon-rich fraction
AssigneeLinde Aktiengesellschaft
InventorRainer Sapper
Life of this patent
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Abstract
A method for the liquefaction of a hydrocarbon-rich fraction is described, wherein the hydrocarbon-rich fraction is liquefied against an open expander refrigeration circuit. According to the invention, that partial stream (6-14) of the hydrocarbon-rich fraction (3) to be liquefied which circulates in the expander refrigeration circuit is expanded in two stages so as to perform work (X1, X2), wherein the partial stream (9) expanded in the first expansion stage (X1) is cooled (E) and subsequently supplied (10) to the second expansion stage (X2).
Claims4
Method for the liquefaction of a hydrocarbon-rich fraction, wherein the hydrocarbon-rich fraction is liquefied against an open expander refrigeration circuit, characterized in that that partial stream (6-14) of the hydrocarbon-rich fraction (3) to be liquefied which circulates in the expander refrigeration circuit is expanded in two stages so as to perform work (X1, X2), wherein the partial stream (9) expanded in the first expansion stage (X1) is cooled (E) and subsequently supplied (10) to the second expansion stage (X2).
Dependencies are inferred from the claim text.