EP 2173690 A1 20100414 - REGENERATION OF CATALYSTS FOR DEHYDRATING ALKANES
Title (en)
REGENERATION OF CATALYSTS FOR DEHYDRATING ALKANES
Title (de)
REGENERATION VON KATALYSATOREN ZUR DEHYDRIERUNG VON ALKANEN
Title (fr)
RÉGÉNÉRATION DE CATALYSEURS DE DÉSHYDROGÉNATION D'ALCANES
Publication
Application
Priority
- EP 2008006059 W 20080724
- DE 102007036750 A 20070803
Abstract (en)
[origin: WO2009018924A1] The invention relates to a method for dehydrating alkanes, wherein the alkane is guided in a reactor for the dehydration of alkanes via a catalyst, and the process may be carried out adiabatically or non-adiabatically, and the catalyst for dehydration can be regenerated after the reaction phase by means of transferring a gas, wherein said gas is guided via the catalyst after a short rinsing phase using water vapor, and said regeneration gas consists of a gas containing oxygen and of steam, and after regeneration the catalyst is freed of the gas containing oxygen by transferring steam, wherein the duration of the transfer of a gas containing oxygen is significantly reduced as compared to common methods and represents 70% or less of the total regeneration time, and the catalyst has an increased selectivity for forming alkene by means of carrying out the regeneration at a constant activity, and the catalyst is comprised of a metal of the group of platinum metals or of the group VIB of the periodic table of the elements, which is applied to a carrier in the form of a compound or in elementary form, which substantially consists of oxides of the elements of tin, zinc, or aluminum.
IPC 8 full level
C07C 5/333 (2006.01); B01J 38/12 (2006.01); B01J 38/16 (2006.01)
CPC (source: EP US)
B01J 38/06 (2013.01 - EP US); B01J 38/16 (2013.01 - EP US); C07C 5/3335 (2013.01 - EP US); B01J 23/24 (2013.01 - EP US); B01J 23/40 (2013.01 - EP US); C07C 2521/04 (2013.01 - EP US); C07C 2521/06 (2013.01 - EP US); C07C 2521/08 (2013.01 - EP US); C07C 2521/10 (2013.01 - EP US); C07C 2523/06 (2013.01 - EP US); C07C 2523/14 (2013.01 - EP US); C07C 2523/24 (2013.01 - EP US); C07C 2523/74 (2013.01 - EP US); Y02P 20/584 (2015.11 - EP US)
Citation (search report)
See references of WO 2009018924A1
Citation (examination)
US 4169815 A 19791002 - DREHMAN LEWIS E [US]
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
Designated extension state (EPC)
AL BA MK RS
DOCDB simple family (publication)
DE 102007036750 A1 20090205; AR 067723 A1 20091021; BR PI0814765 A2 20150303; CN 101765576 A 20100630; CN 101765576 B 20140813; EG 26205 A 20130428; EP 2173690 A1 20100414; HK 1140752 A1 20101022; JP 2010535208 A 20101118; JP 5493099 B2 20140514; KR 101581054 B1 20151229; KR 20100038397 A 20100414; MY 156347 A 20160215; RU 2010107622 A 20110910; RU 2477265 C2 20130310; US 2010234660 A1 20100916; US 9181149 B2 20151110; WO 2009018924 A1 20090212; WO 2009018924 A4 20090402
DOCDB simple family (application)
DE 102007036750 A 20070803; AR P080103272 A 20080729; BR PI0814765 A 20080724; CN 200880100876 A 20080724; EG 2010020174 A 20100202; EP 08785012 A 20080724; EP 2008006059 W 20080724; HK 10107261 A 20100729; JP 2010519356 A 20080724; KR 20107001736 A 20080724; MY PI20100390 A 20080724; RU 2010107622 A 20080724; US 45293308 A 20080724