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1. WO2011022038 - PROCESS FOR THE PRODUCTION OF BUTADIENE

Publication Number WO/2011/022038
Publication Date 24.02.2011
International Application No. PCT/US2010/002176
International Filing Date 05.08.2010
IPC
C07C 5/25 2006.01
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
5Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms
22by isomerisation
23Rearrangement of carbon-to-carbon unsaturated bonds
25Migration of carbon-to-carbon double bonds
C07C 11/167 2006.01
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
11Acyclic unsaturated hydrocarbons
12Alkadienes
16with four carbon atoms
1671,3-Butadiene
CPC
C07C 11/167
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
11Aliphatic unsaturated hydrocarbons
12Alkadienes
16with four carbon atoms
1671, 3-Butadiene
C07C 5/2506
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
5Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms
22by isomerisation
23Rearrangement of carbon-to-carbon unsaturated bonds
25Migration of carbon-to-carbon double bonds
2506Catalytic processes
C07C 5/327
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
5Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms
32by dehydrogenation with formation of free hydrogen
327Formation of non-aromatic carbon-to-carbon double bonds only
C07C 5/48
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
5Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms
42by dehydrogenation with a hydrogen acceptor
48with oxygen as an acceptor
C07C 7/04
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
7Purification; Separation; Use of additives
04by distillation
Y02P 20/10
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
20Technologies relating to chemical industry
10Process efficiency
Applicants
  • LUMMUS TECHNOLOGY INC. [US]/[US]
Inventors
  • ARNOLD, Stephen Craig
  • GAFFNEY, Anne Mae
  • KARAS, Lawrence John
  • ANGEVINE, Philip Jay
  • YEH, Chuen Yuan
  • SONG, Ruozhi
Agents
  • COVELLO, Diane F.
Priority Data
12/542,56517.08.2009US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) PROCESS FOR THE PRODUCTION OF BUTADIENE
(FR) PROCÉDÉ POUR LA PRODUCTION DE BUTADIÈNE
Abstract
(EN)
Processes are provided for the production of butadiene from C4 containing feed stocks that contain isobutene and/or isobutane in addition to n-butcne(s) and/or n-butane. The processes of the present invention generally comprise feeding the feed stock to a combination butenes isomerization reaction and distillation tower for conversion of I -butene to 2-butenes and separation from isobutene and isobutane, followed by an oxydchydrogenation unit to convert n-butenes to butadiene. The processes may also include additional isomerization and/or dehydrogenation steps for the tower overhead and bottoms streams to create additional isobutene and/or n-bulenes for valued uses, which may include additional production of butadiene. The feed to the system may comprise any mixture or separate feeding of C4 olefins and C4 paraffins, at least one of which contains isobutene and/or isobutane.
(FR)
La présente invention a pour objet des procédés pour la production de butadiène à partir de matières premières contenant du C4 qui contiennent de l'isobutène et/ou de l'isobutane en plus de n-butène(s) et/ou de n-butane. Les procédés selon la présente invention comprennent de manière générale les étapes consistant à introduire les matières premières dans une tour de réaction d'isomérisation et de distillation d'une combinaison de butènes pour la conversion de 1-butène en 2-butènes et la séparation de l'isobutène et de l'isobutane, suivies par une unité d'oxydéshydrogénation pour convertir les n-butènes en butadiène. Les procédés peuvent aussi comprendre des étapes supplémentaires d'isomérisation et/ou de déshydrogénation pour que la tête de distillat et les courants de fond de la tour créent de l'isobutène et/ou des n-butènes supplémentaires pour des utilisations valorisées, ce qui peut comprendre une production supplémentaire de butadiène. L'alimentation du système peut comprendre n'importe quelle alimentation mélangée ou séparée d'oléfines en C4 et de paraffines en C4, dont au moins l'une contient de l'isobutène et/ou de l'isobutane.
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