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1. KR1020070085308 - METHOD FOR PRODUCING BUTADIENE FROM N-BUTANE

Amt Republik Korea
Aktenzeichen/Anmeldenummer 1020077010740
Anmeldedatum 11.05.2007
Veröffentlichungsnummer 1020070085308
Veröffentlichungsdatum 27.08.2007
Erteilungsnummer 1012562470000
Erteilungsdatum 22.04.2013
Veröffentlichungsart B1
IPC
C07C 11/167
CChemie; Hüttenwesen
07Organische Chemie
CAcyclische oder carbocyclische Verbindungen
11Acyclische ungesättigte Kohlenwasserstoffe
12Alkadiene
16mit vier Kohlenstoffatomen
1671,3-Butadien
C07C 5/333
CChemie; 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 5/32
CChemie; 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
Anmelder BASF AKTIENGESELLSCHAFT
바스프 악티엔게젤샤프트
Erfinder CRONE SVEN
크로네, 스벤
KLANNER CATHARINA
클라너, 카타리나
SCHINDLER GOETZ PETER
쉰들러, 괴츠-페터
DUDA MARK
두다, 마르크
BORGMEIER FRIEDER
보르그마이어, 프리더
Vertreter 김영
장수길
Prioritätsdaten 10 2004 054 766.1 12.11.2004 DE
Titel
(EN) METHOD FOR PRODUCING BUTADIENE FROM N-BUTANE
(KO) N-부탄으로부터 부타디엔을 제조하는 방법
Zusammenfassung
(EN)

The invention relates to a method for producing butadiene from n-butane, said method comprising the following steps: A) a feed gas flow (a) containing n-butane is prepared; B) the feed gas flow (a) containing n-butane is fed into at least one first dehydrogenating region and the n-butane is subjected to non-oxidative catalytic dehydrogenation, in order to obtain a gas flow (b) containing n-butane, 1-butene, 2-butene, butadiene, hydrogen, optionally carbon dioxide, and optionally water vapour; C) the gas flow (b) and a gas having an oxygen content of at least 75 vol. % are fed into at least one second dehydrogenating region and the 1-butene and 2-butene are subjected to oxidative dehydrogenation, in order to obtain a gas flow (c) containing n-butane, butadiene, hydrogen, and water vapour; D) the gas flow (c) is compressed in at least one first compression step and cooled, in order to obtain at least one condensate flow (d1) containing water and a gas flow (d2) containing n-butane, butadiene, hydrogen, carbon dioxide, and water vapour; E) the gas flow (d2) is compressed in at least one other compression step and cooled, in order to obtain at least one condensate flow (e1) containing n-butane, butadiene and water and a gas flow (e2) containing n-butane, butadiene, hydrogen and carbon dioxide; F) the gas flow (e2) is cooled, in order to obtain a condensate flow (f1) containing n-butane and butadiene and an exhaust gas flow (f2) containing carbon dioxide and hydrogen; G) water is separated from the at least one condensate flow (e1) and optionally the condensate flow (f1) during phase separation, in order to obtain at least one C4-hydrocarbon flow (g1) containing n-butane and butadiene and at least one waste water flow (g2); H) the C4-hydrocarbon flow (g1) is fractionated into a return flow (h1) containing n-butane and a product flow (h2) essentially consisting of butadiene, and the flow (h1) is redirected into the first dehydrogenating region.

© KIPO & WIPO 2007

(KO)
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