Global Patent Index - EP 1971676 A1

EP 1971676 A1 20080924 - METHOD AND SYSTEM FOR WASHING THE INTERNALS OF A VESSEL FOR PROCESSING A HEAVY HYDROCARBON STREAM

Title (en)

METHOD AND SYSTEM FOR WASHING THE INTERNALS OF A VESSEL FOR PROCESSING A HEAVY HYDROCARBON STREAM

Title (de)

VERFAHREN UND SYSTEM ZUM WASCHEN DER EINBAUTEN EINES GEFÄSSES ZUR VERARBEITUNG EINES SCHWEREN KOHLENWASSERSTOFFSTROMS

Title (fr)

PROCEDE ET DISPOSITIF POUR LE NETTOYAGE DES PARTIES INTERNES D'UNE CUVE DESTINEE AU TRAITEMENT D'UN FLUX D'HYDROCARBURES LOURDS

Publication

EP 1971676 A1 20080924 (EN)

Application

EP 05825278 A 20060118

Priority

EP 2005056899 W 20060118

Abstract (en)

[origin: WO2007082550A1] A method for washing the internals of a vessel for processing a heavy hydrocarbon stream, such as a paraffinic diluent recovery column (1) in a bitumen refining plant, comprises introducing a cleansing stream (3) comprising aromatic and/or naphthenic components into the vessel such that the cleansing stream flows along at least a substantial part of the surface of the internals of the vessel and flushes precipitated asphaltene deposits from said internals. The cleansing stream (3) may comprise an aromatic and/or naphthenic light gas oil (LGO), which is recycled from an atmospheric distillation column (2) in a bitumen refining plant.

IPC 8 full level

C11D 7/24 (2006.01); C10G 75/04 (2006.01); C11D 3/18 (2006.01); C11D 11/00 (2006.01)

CPC (source: EP)

C10G 75/04 (2013.01); C11D 7/247 (2013.01); C11D 11/0029 (2013.01)

Citation (search report)

See references of WO 2007082550A1

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

DOCDB simple family (publication)

WO 2007082550 A1 20070726; BR PI0621232 A2 20160830; CN 101360815 A 20090204; EA 014005 B1 20100830; EA 200801712 A1 20081230; EP 1971676 A1 20080924

DOCDB simple family (application)

EP 2005056899 W 20060118; BR PI0621232 A 20060118; CN 200680051388 A 20060118; EA 200801712 A 20060118; EP 05825278 A 20060118