EP 2125998 A1 20091202 - ADDITIVE FOR REDUCING COKING AND/OR CARBON MONOXIDE IN CRACKING REACTORS AND HEAT EXCHANGERS AND USE OF SAME
Title (en)
ADDITIVE FOR REDUCING COKING AND/OR CARBON MONOXIDE IN CRACKING REACTORS AND HEAT EXCHANGERS AND USE OF SAME
Title (de)
ZUSATZ ZUR MINIMIERUNG VON VERKOKUNG UND/ODER KOHLENSTOFFMONOXID IN KRACKREAKTOREN UND WÄRMETAUSCHERN SOWIE VERWENDUNG
Title (fr)
ADDITIF DE REDUCTION DU COKAGE ET/OU DU MONOXYDE DE CARBONE DANS LES REACTEURS DE CRAQUAGE ET LES ECHANGEURS THERMIQUES, SON UTILISATION
Publication
Application
Priority
- FR 2008050281 W 20080220
- FR 0753380 A 20070220
- US 94926607 P 20070712
Abstract (en)
[origin: FR2912757A1] Additive for reducing the formation of coke and carbon monoxide in thermal cracking unit and heat exchangers, comprises a disulfide comprising diethyldisulfide, dipropyldisulfide or dibutyldisulfide. Independent claims are included for: (1) a process for reducing the coking and/or carbon monoxide on metallic walls of a hydrocarbon cracking reactor or other organic compounds and on the metallic walls of a heat exchanger placed behind the cracking reactor, comprising contacting the metallic surfaces with the organic substance to be cracked, which are pretreated with a flow of vector fluid containing the additive at 300- 1100[deg] C for 0.5-12 hours; and (2) a process of hydrocarbon cracking and/or other organic compounds, comprising adding the additive during cracking in the hydrocarbon charge, organic compounds, before cracking in a hydrocarbon liquid charge, other organic compounds before its preheating and its vaporizing and/or during the preheating phase of the liquid charge.
IPC 8 full level
C10G 9/16 (2006.01); C07C 4/04 (2006.01); C07C 321/14 (2006.01)
CPC (source: EP US)
C07C 321/14 (2013.01 - EP US); C10G 9/16 (2013.01 - EP US)
Citation (search report)
See references of WO 2008107622A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
DOCDB simple family (publication)
FR 2912757 A1 20080822; FR 2912757 B1 20101119; CA 2678153 A1 20080912; CA 2678153 C 20130611; EP 2125998 A1 20091202; US 2010069695 A1 20100318; US 8791314 B2 20140729; WO 2008107622 A1 20080912; WO 2008107622 A8 20081106
DOCDB simple family (application)
FR 0753380 A 20070220; CA 2678153 A 20080220; EP 08762128 A 20080220; FR 2008050281 W 20080220; US 52631708 A 20080220