F - Mech Eng,Light,Heat,Weapons – 25 – J
Patent
F - Mech Eng,Light,Heat,Weapons
25
J
162/115, 23/341,
F25J 3/02 (2006.01) B01D 53/00 (2006.01) B01D 53/18 (2006.01)
Patent
CA 1298065
-46- ABSTRACT A continuous process is disclosed for separating components of a hydrocarbon gas stream which are selected from the group consisting of hydrogen, nitrogen, methane, ethylene, ethane, higher saturated and unsaturated hydrocarbons, and mixtures thereof by countercurrently contacting the hydrocarbon gas stream with a physical solvent selected from the group consisting of: 1) paraffinic solvents having molecular weights ranging from 75 to 140 and UOP characterization factors ranging from 12.0 to 13.5, these factors being independent of the aromatic content of the paraffinic solvents, 2) naphthenic solvents having molecular weights ranging from 75 to 130 and UOP characterization factors ranging from 10.5 to 12.0, these factors being independent of the aromatic content of the naphthenic solvents, and 3) benzene and toluene, to produce an overhead stream which is at least rich in at least one of the components and a rich solvent bottoms stream; and by recovering the lean physical solvent from the rich solvent bottoms stream and recycling the recovered stream to the contacting of Step A.
577806
Advanced Extraction Technologies Inc.
Kirby Eades Gale Baker
LandOfFree
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