EP 0122341 A1 19841024 - Recovery of aromatic hydrocarbons and a non-aromatic raffinate stream from a hydrocarbon charge stock.
Title (en)
Recovery of aromatic hydrocarbons and a non-aromatic raffinate stream from a hydrocarbon charge stock.
Title (de)
Gewinnung von aromatischen Kohlenwasserstoffen und einem nicht-aromatischen Raffinatstrom aus einem Kohlenwasserstoffzuführer.
Title (fr)
Récupération d'hydrocarbures aromatiques et d'un courant de raffinat non-aromatique d'une charge hydrocarbonée.
Publication
Application
Priority
EP 83302023 A 19830411
Abstract (en)
Aromatic hydrocarbons and a non-aromatic raffinate stream are recovered in high purity from a hyrocarbon charge stock by a process in which the hydrocarbon charge stock is treated with an aromatic-selective solvent to provide an aromatics-rich solvent stream (1) and a non-aromatic raffinate stream (27), the aromatics-rich solvent stream is treated in a stripper column (2) at conditions to separate substantially all of the non-aromatic hydrocarbons therefrom (7), the resulting rich solvent stream (12) is subjected to steam stripping (13) following by separation (17) to provide a high purity aromatics stream (19) and an aqueous stream (20) comprising the steam condensate and residual aromatics, this aqueous stream (20) is treated with a minor portion (28) of the non-aromatic raffinate (27) to remove the residual aromatics, the resulting aqueous stream (29) is utilized to wash the remainder of the raffinate (27) free of solvent, and the resulting raffinate stream (31) is recovered substantially free of aromatics.
IPC 1-7
IPC 8 full level
C10G 21/28 (2006.01)
CPC (source: EP)
C10G 21/28 (2013.01)
Citation (search report)
- [A] US 3642614 A 19720215 - TASSELL HARRY M VAN
- [A] GB 1333039 A 19731010 - UNIVERSAL OIL PROD CO
- [AD] US 2773918 A 19561211 - STEPHENS JOHN H
- [AD] US 3361664 A 19680102 - BROUGHTON DONALD B, et al
Designated contracting state (EPC)
AT BE DE FR GB IT NL
DOCDB simple family (publication)
EP 0122341 A1 19841024; EP 0122341 B1 19870708; AT E28213 T1 19870715; DE 3372376 D1 19870813
DOCDB simple family (application)
EP 83302023 A 19830411; AT 83302023 T 19830411; DE 3372376 T 19830411