C - Chemistry – Metallurgy – 10 – G
Patent
C - Chemistry, Metallurgy
10
G
196/262
C10G 21/28 (2006.01) B01D 3/06 (2006.01)
Patent
CA 1109014
L/3??32 SOLVENT RECOVERY PROCESS FOR PROCESSING OF HYDROCARBONS Abstract A solvent recovery portion of a solvent refining plant for producing oil products such as lubricating oils from a crude source of hydrocarbons such as petroleum hydrocarbons wherein there are provided at least three continuous flash stages or zones for which each successive stage or zone operates at pressure and temperature levels higher than the preceding one, the vapor from any successive stage or zone being employed as the heating medium in the preceding one to effect the vaporiza- tion in said preceding stage or zone.
327115
Davis Hyman R.
Nasr Wagih I.
Roethlin Siegfried M.
Sherwood Harold D.
Lummus Company (the)
Richard Jean
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