EP 1144550 A1 20011017 - DEHYDROCYCLIZATION PROCESS WITH DOWNSTREAM DIMETHYLBUTANE REMOVAL
Title (en)
DEHYDROCYCLIZATION PROCESS WITH DOWNSTREAM DIMETHYLBUTANE REMOVAL
Title (de)
DEHYDROCYKLIZIERUNGSVERFAHREN MIT ABWÄRTS STRÖMENDER ENTFERNUNG VON DIMETHYLBUTAN
Title (fr)
PROCEDE DE DESHYDROCYCLISATION AVEC ELIMINATION DE DIMETHYLBUTANE EN AVAL
Publication
Application
Priority
US 9826134 W 19981209
Abstract (en)
[origin: WO0034417A1] In the present invention, dimethylbutanes are removed from the raffinate component of the feed to a dehydrocyclization process. Thus, according to a preferred embodiment, a process is provided for producing aromatics by the following steps: (a) contacting fresh paraffins rich feed hydrocarbons, containing 0.1 to 20.0 wt.% dimethylbutanes with a highly selective dehydrocyclization catalyst in a reaction zone, under dehydrocyclization reaction conditions, to convert paraffins to aromatics and obtain an aromatics rich effluent; (b) separating aromatics from the effluent to obtain an aromatics lean raffinate; (c) removing dimethylbutanes from the raffinate to obtain a raffinate of reduced dimethylbutane content; and (d) recycling the raffinate of reduced dimethylbutane content to the reaction zone. Preferably, the dehydrocyclization catalyst used is a nonacidic, monofunctional catalyst. Platinum on L zeolite is a particularly preferred highly selective dehydrocyclization catalyst for use in the process.
IPC 1-7
IPC 8 full level
C10G 35/085 (2006.01); C10G 35/095 (2006.01); C10G 61/02 (2006.01); C10G 61/04 (2006.01); C10G 61/06 (2006.01)
CPC (source: EP KR)
C10G 35/085 (2013.01 - EP); C10G 35/095 (2013.01 - EP); C10G 61/02 (2013.01 - EP KR); C10G 61/04 (2013.01 - EP)
Citation (search report)
See references of WO 0034417A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 0034417 A1 20000615; AT E356859 T1 20070415; AU 1810999 A 20000626; CA 2356632 A1 20000615; CA 2356632 C 20100720; DE 69837351 D1 20070426; DE 69837351 T2 20080410; EP 1144550 A1 20011017; EP 1144550 B1 20070314; ES 2281145 T3 20070916; JP 2002531683 A 20020924; KR 100601258 B1 20060714; KR 20010112229 A 20011220; MX PA01005894 A 20020424
DOCDB simple family (application)
US 9826134 W 19981209; AT 98962992 T 19981209; AU 1810999 A 19981209; CA 2356632 A 19981209; DE 69837351 T 19981209; EP 98962992 A 19981209; ES 98962992 T 19981209; JP 2000586852 A 19981209; KR 20017007235 A 20010609; MX PA01005894 A 19981209