EP 3237578 A1 20171101 - PROCESS AND APPARATUS FOR THE REDUCTION OF HEAVY POLYCYCLIC AROMATIC COMPOUNDS IN HYDROCRACKING UNITS
Title (en)
PROCESS AND APPARATUS FOR THE REDUCTION OF HEAVY POLYCYCLIC AROMATIC COMPOUNDS IN HYDROCRACKING UNITS
Title (de)
VERFAHREN UND VORRICHTUNG ZUR REDUZIERUNG VON SCHWEREN POLYCYCLISCHEN AROMATISCHEN VERBINDUNGEN IN HYDROCRACKING-EINHEITEN
Title (fr)
PROCÉDÉ ET DISPOSITIF POUR LA REDUCTION DES COMPOSÉS AROMATIQUES POLYCYCLIQUES LOURDS DANS LES UNITÉS D'HYDROCRAQUAGE
Publication
Application
Priority
- FR 1463094 A 20141222
- EP 2015080222 W 20151217
Abstract (en)
[origin: WO2016102302A1] The invention relates to a method and an apparatus for reducing the concentration of heavy polycyclic aromatic compounds (HPNA) in the recycling loop of hydrocracking units, said apparatus including a fractioning column. According to said method, a portion of the flow is drawn off from the fractioning column, which flow is present in the region of at least one tray (I) that is the feed tray or a tray located between the feed tray and said residue discharge point or, if stripping gas is injected, between the feed tray and said stripping gas injection point. A portion, or preferably all, of said flow that has been drawn off is recycled in the hydrocracking step, directly or after optional separation of the gases. The residue is completely purged. In a preferred embodiment, a portion of a flow is furthermore drawn off from the column, which flow is present in the region of at least one tray (II) located between the feed tray and the draw-off tray for the heaviest distillate fraction. After stripping, all or some of the gas is recycled in the column and the liquid is conveyed to the hydrocracking.
IPC 8 full level
C10G 47/00 (2006.01); C10G 7/00 (2006.01)
CPC (source: CN EP KR US)
C10G 7/00 (2013.01 - CN EP US); C10G 7/006 (2013.01 - KR); C10G 47/00 (2013.01 - CN EP US); C10G 47/22 (2013.01 - KR); C10G 65/10 (2013.01 - KR); C10G 67/02 (2013.01 - EP US); C10G 2300/1096 (2013.01 - EP US); C10G 2300/4081 (2013.01 - EP US)
Citation (search report)
See references of WO 2016102302A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
FR 3030564 A1 20160624; FR 3030564 B1 20180810; AR 103261 A1 20170426; BR 112017011864 A2 20180102; CN 107429169 A 20171201; CN 107429169 B 20200915; DK 3237578 T3 20200224; EP 3237578 A1 20171101; EP 3237578 B1 20191120; KR 20170099989 A 20170901; MX 2017007916 A 20170905; US 10533142 B2 20200114; US 2017349844 A1 20171207; WO 2016102302 A1 20160630
DOCDB simple family (application)
FR 1463094 A 20141222; AR P150104272 A 20151222; BR 112017011864 A 20151217; CN 201580070237 A 20151217; DK 15817223 T 20151217; EP 15817223 A 20151217; EP 2015080222 W 20151217; KR 20177020590 A 20151217; MX 2017007916 A 20151217; US 201515538967 A 20151217