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    • 5. 发明公开
    • 디사이클로펜타디엔으로부터사이클로펜탄을형성하는방법
    • 从二环戊二烯形成环戊二烯的方法
    • KR1020000029791A
    • 2000-05-25
    • KR1019997000915
    • 1997-08-04
    • 엑손모빌 케미칼 패턴츠 인코포레이티드
    • 래트너제임스알맥멀렌씨해리산체즈레오넬이실버버그스티븐이우트론즈-아이데니스
    • C07C13/10
    • C07C13/10C07C5/03C07C2521/04C07C2523/44C07C2523/755C07C2523/882C07C2523/883C07C2601/08C08G2101/0025C08G2101/005
    • PURPOSE: A method is provided to form a high purity cyclopentane as splitting dicyclopentadiene and completely hydrogenating cyclopentane to unit. CONSTITUTION: A method for producing a cyclopentane product which comprises the following steps: (a) cracking dicyclopentadiene to form a cyclopentadiene rich stream and a higher boiling liquids stream; (b) separating the cyclopentadiene rich stream from the higher boiling liquids stream; (c) diluting the cyclopentadiene rich stream with recycled saturates such that the cyclopentadiene content is limited to between about 5 to 50 %; (d) conducting a first hydrogenation of the cyclopentadiene rich stream in the presence of hydrogen and a first catalyst, and at a temperature (i.e., preferably between about 26 to 94°C, more preferably in the range between about 37 to 66°C) which is capable of avoiding the repolymerization of cyclopentadiene to dicyclopentadiene, thereby forming a cyclopentadiene depleted stream; (e) conducting a second hydrogenation of the cyclopentadiene depleted stream in the presence of a second catalyst wherein any residual olefins and/or cyclopentadiene contained within the cyclopentadiene depleted stream are saturated, thereby forming a crude cyclopentane product; and (f) flash stripping the crude cyclopentane product to form the cyclopentane product comprising about 95 % pure cycle pentane.
    • 目的:提供一种形成高纯度环戊烷作为分裂二环戊二烯并将环戊烷完全氢化成单元的方法。 构成:生产环戊烷产物的方法,包括以下步骤:(a)裂解二环戊二烯以形成富含环戊二烯的料流和较高沸点的液体料流; (b)从较高沸点的液体物流中分离富含环戊二烯的物流; (c)用循环的饱和物稀释富含环戊二烯的流,使得环戊二烯含量限制在约5至50%之间; (d)在氢气和第一催化剂的存在下,在温度(即,优选在约26至94℃之间,更优选约37至66℃的范围内)进行富环戊二烯物流的第一次氢化 ),其能够避免环戊二烯再聚合成二环戊二烯,从而形成环戊二烯贫化物流; (e)在第二催化剂存在下进行环戊二烯贫化物流的第二次氢化,其中所述环戊二烯贫化物流中所含的任何残留烯烃和/或环戊二烯是饱和的,从而形成粗环戊烷产物; 和(f)快速汽提粗环戊烷产物以形成包含约95%纯循环戊烷的环戊烷产物。