METHOD FOR PRODUCING CONJUGATED DIENE

• Main Authors: KANG, JUN HAN, LEE, JOO HYUCK, NAM, HYUN SEOK, HWANG, YE SEUL, HAN, JUN KYU, SUH, MYUNG JI, HAN, SANG JIN, KO, DONG HYUN, CHOI, DAE HEUNG, CHA, KYONG YONG
• Format: Patent
• Language: English; Korean
• Published: 15.06.2016
• Subjects: ACYCLIC OR CARBOCYCLIC COMPOUNDS; CHEMISTRY; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; METALLURGY; ORGANIC CHEMISTRY; TECHNICAL SUBJECTS COVERED BY FORMER USPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ARTCOLLECTIONS [XRACs] AND DIGESTS

The present invention relates to a preparation method of conjugated diene. According to the present invention, the preparation method of conjugated diene such as butadiene or the like by a contact oxidation dehydrogenation reaction of monoolefin such as n-butene or the like inactivates an organic solvent in an overhead exhaust gas in an absorption step, and does not affect catalytic activity when re-circulating the organic solvent to a reactor, thereby having greater efficiency in comparison to a conventional method. 본 발명은 공액디엔의 제조 방법에 관한 것으로, 본 발명에 따르면 n-부텐 등의 모노올레핀의 접촉 산화 탈수소 반응에 의해 부타디엔 등의 공액디엔을 제조하는 방법에 있어서, 흡수 단계의 탑정 배출 가스에 포함된 유기 용매를 불활화시킴으로써 반응기로 재순환시 촉매 활성에 영향을 미치지 않음으로써 종래보다 효율이 뛰어난 부타디엔 등의 공액디엔을 제조할 수 있는 방법을 제공하는 효과가 있다.