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1. MYPI 20055155 - METHOD FOR PRODUCING BUTADIENE FROM N-BUTANE

Amt Malaysia
Aktenzeichen/Anmeldenummer PI 20055155
Anmeldedatum 31.10.2005
Veröffentlichungsnummer PI 20055155
Veröffentlichungsdatum 12.05.2006
Veröffentlichungsart A
IPC
C07C 5/333
CSektion C Chemie; Hüttenwesen
07Organische Chemie
CAcyclische oder carbocyclische Verbindungen
5Herstellung von Kohlenwasserstoffen aus Kohlenwasserstoffen, die die gleiche Anzahl von Kohlenstoffatomen im Molekül enthalten
32durch Dehydrierung unter Bildung von freiem Wasserstoff
327Bildung von ausschließlich nichtaromatischen Kohlenstoff-Kohlenstoff-Doppelbindungen
333Katalytische Verfahren
C07C 11/167
CSektion C Chemie; Hüttenwesen
07Organische Chemie
CAcyclische oder carbocyclische Verbindungen
11Acyclische ungesättigte Kohlenwasserstoffe
12Alkadiene
16mit vier Kohlenstoffatomen
1671,3-Butadien
Anmelder BASF AKTIENGESELLSCHAFT
Erfinder DR. SVEN CRONE
DR. CATHARINA KLANNER
DR.GÖTZ-PETER SCHINDLER
DR. MARK DUDA
DR. FRIEDER BORGMEIER
Vertreter PATRICK MIRANDAH
Prioritätsdaten 102004054766 12.11.2004 DE
Titel
(EN) METHOD FOR PRODUCING BUTADIENE FROM N-BUTANE
Zusammenfassung
(EN)
A) PROVIDING A FEED GAS STREAM A COMPRISING N-BUTANE; B) FEEDING THE FEED GAS STREAM A COMPRISING N-BUTANE INTO AT LEAST ONE FIRST DEHYDROGENATION ZONE AND NONOXIDATIVELY, CATALYTICALLY DEHYDROGENATING N-BUTANE TO OBTAIN A GAS STREAM B COMPRISING N-BUTANE, I-BUTENE, 2-BUTENE, BUTADIENE AND HYDROGEN, WITH OR WITHOUT CARBON DIOXIDE AND WITH OR WITHOUT STEAM; C) FEEDING THE GAS STREAM B AND AN OXYGENOUS GAS HAVING AN OXYGEN CONTENT OF AT LEAST 75% BY VOLUME INTO AT LEAST ONE SECOND DEHYDROGENATION ZONE AND OXIDATIVELY DEHYDROGENATING I-BUTENE AND 2-BUTENE TO OBTAIN A GAS STREAM C COMPRISING N-BUTANE, BUTADIENE, HYDROGEN, CARBON DIOXIDE AND STEAM, D) COMPRESSING IN AT LEAST ONE FIRST COMPRESSION STAGE AND COOLING THE GAS STREAM C TO OBTAIN AT LEAST ONE CONDENSATE STREAM D1 COMPRISING WATER AND A GAS STREAM D2 COMPRISING N-BUTANE, BUTADIENE; HYDROGEN, CARBON DIOXIDE AND STEAM, E) COMPRESSING IN AT LEAST ONE FURTHER COMPRESSION STAGE AND COOLING THE GAS STREAM D2 TO OBTAIN AT LEAST ONE CONDENSATE STREAM E1 COMPRISING N-BUTANE, BUTADIENE AND WATER, AND A GAS STREAM E2 COMPRISING N-BUTANE, BUTADIENE, HYDROGEN AND CARBON DIOXIDE, F) COOLING THE GAS STREAM E2 TO OBTAIN A CONDENSATE STREAM F1 COMPRISING N-BUTANE AND BUTADIENE, AND AN OFFGAS STREAM F2 COMPRISING CARBON DIOXIDE AND HYDROGEN, G) REMOVING WATER FROM THE AT LEAST ONE CONDENSATE STREAM EL AND, IF APPROPRIATE, FROM THE CONDENSATE STREAM FL BY PHASE SEPARATION TO OBTAIN AT LEAST ONE C4 HYDROCARBON STREAM G1 COMPRISING N-BUTANE AND BUTADIENE, AND AT LEAST ONE WASTEWATER STREAM G2, H) SEPARATING THE C4 HYDROCARBON STREAM GI INTO A RECYCLE STREAM HI COMPRISING N-BUTANE AND A PRODUCT STREAM H2 CONSISTING SUBSTANTIALLY OF BUTADIENE, AND RECYCLING THE STREAM HI INTO THE FLFST DEHYDROGENATION ZONE.