EP 1858831 A2 20071128 - METHOD FOR PRODUCING PROPENE FROM PROPANE
Title (en)
METHOD FOR PRODUCING PROPENE FROM PROPANE
Title (de)
VERFAHREN ZUR HERSTELLUNG VON PROPEN AUS PROPAN
Title (fr)
PROCEDE DE PRODUCTION DE PROPENE A PARTIR DE PROPANE
Publication
Application
Priority
- EP 2006060436 W 20060303
- DE 102005010586 A 20050308
Abstract (en)
[origin: WO2006094938A2] The invention concerns a method for producing propene from propane, said method consisting in: A) preparing an input gas stream (a) containing propane; B) introducing the input gas stream (a), containing propane, optionally water vapour and optionally an oxygen-containing gas stream, into a dehydrogenation zone then dehydrogenating propane to form propene, a product gas stream (b), containing propane, propene, methane, ethane, ethene, nitrogen, carbon monoxide, carbon dioxide, water vapour, optionally hydrogen and optionally oxygen, being obtained; C) cooling and optionally compressing the product gas stream (b) then separating water vapour by condensing a product gas stream (c) depleted in water vapour (c) being obtained; D) separating the non-condensable gas constituents or with low boiling point by contacting the product gas stream (c) with an inert absorbent then by desorbing the gases dissolved in said inert absorbent, a C<SUB>3</SUB> hydrocarbon stream (d1) and a residual gas stream (d2) containing methane, ethane, ethene, nitrogen, carbon monoxide, carbon dioxide, optionally hydrogen and optionally oxygen, being obtained; E) cooling and optionally compressing the C<SUB>3</SUB> hydrocarbon stream (d1), a gaseous or liquid C<SUB>3</SUB> hydrocarbon stream (e1) being obtained; F) optionally introducing the C<SUB>3</SUB> hydrocarbon stream (e1) into a first distillation zone then separating same by distillation into a propane and propene stream (f1) and a stream (f2) containing ethane and ethene; G) introducing the stream (e1) or (f1) into a (second) distillation zone then separating by distillation into a propene stream (g1) and a propane stream (g2), the stream (g2) being recycled at least partly to the dehydrogenation zone.
IPC 8 full level
C07C 5/48 (2006.01)
CPC (source: EP KR US)
C07C 5/327 (2013.01 - EP US); C07C 5/48 (2013.01 - EP KR US); C07C 11/06 (2013.01 - KR)
Citation (search report)
See references of WO 2006094938A2
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)
DE 102005010586 A1 20060914; AU 2006222065 A1 20060914; BR PI0608337 A2 20101116; CA 2599255 A1 20060914; CN 101137605 A 20080305; EP 1858831 A2 20071128; JP 2008532975 A 20080821; KR 20070110080 A 20071115; MX 2007010515 A 20081024; NO 20074272 L 20070927; TW 200640847 A 20061201; US 2008269536 A1 20081030; WO 2006094938 A2 20060914; WO 2006094938 A3 20061102
DOCDB simple family (application)
DE 102005010586 A 20050308; AU 2006222065 A 20060303; BR PI0608337 A 20060303; CA 2599255 A 20060303; CN 200680007799 A 20060303; EP 06708626 A 20060303; EP 2006060436 W 20060303; JP 2008500173 A 20060303; KR 20077020561 A 20070907; MX 2007010515 A 20060303; NO 20074272 A 20070822; TW 95107827 A 20060308; US 81759906 A 20060303