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    Process for forming cyclopentane from dicyclopentadiene
    1.
    发明授权
    Process for forming cyclopentane from dicyclopentadiene 失效
    从二环戊二烯形成环戊烷的方法

    公开(公告)号：US5998683A

    公开(公告)日：1999-12-07

    申请号：US899544

    申请日：1997-07-24

    申请人： James R. Lattner ,  C. Harry McMullen ,  Leonel E. Sanchez ,  Steven E. Silverberg ,  Tronze-I Dennis Wu

    发明人： James R. Lattner ,  C. Harry McMullen ,  Leonel E. Sanchez ,  Steven E. Silverberg ,  Tronze-I Dennis Wu

    IPC分类号： C07B61/00 ,  C07C5/03 ,  C07C13/10 ,  C07C4/02 ,  C07C4/22

    CPC分类号： C07C13/10 ,  C07C5/03 ,  C07C2101/08 ,  C07C2521/04 ,  C07C2523/44 ,  C07C2523/755 ,  C07C2523/882 ,  C07C2523/883 ,  C08G2101/0025 ,  C08G2101/005

    摘要： 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 5-50%; (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.degree. C., more preferably in the range between about 37 to 66.degree. 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 cyclopentane.

    摘要翻译： 一种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5-50％之间; （d）在氢和第一催化剂的存在下，在一个温度（即，优选在约26至94℃之间，更优选约37至66℃的范围内）对富环戊二烯物流进行第一次氢化 DEG），其能够避免环戊二烯重新聚合成二环戊二烯，由此形成环戊二烯贫化的流; （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，其中包含在环戊二烯贫化物流内的任何残留烯烃和/或环戊二烯都是饱和的，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％纯环戊烷的环戊烷产物。

    Use of catalytic distillation to produce cyclopentane or cyclopentene
    7.
    发明授权
    Use of catalytic distillation to produce cyclopentane or cyclopentene 失效
    使用催化蒸馏生产环戊烷或环戊烯

    公开(公告)号：US6100435A

    公开(公告)日：2000-08-08

    申请号：US191488

    申请日：1998-11-13

    申请人： Steven E. Silverberg ,  Leonel E. Sanchez ,  James R. Lattner

    发明人： Steven E. Silverberg ,  Leonel E. Sanchez ,  James R. Lattner

    IPC分类号： C07C13/10 ,  C07C13/12 ,  C07C1/00 ,  C07C4/22 ,  C07C13/15 ,  C07C5/33

    CPC分类号： C07C13/12 ,  C07C13/10 ,  C07C2101/08 ,  C07C2101/10 ,  C07C2523/42 ,  C07C2523/44 ,  C07C2523/72 ,  C07C2523/755 ,  C07C2523/86 ,  C07C2523/882 ,  C07C2523/883 ,  Y02P20/127 ,  Y10S203/06

    摘要： A process is disclosed for converting dicyclopentadiene to cyclopentane and/or cyclopentene, wherein dicyclopentadiene is fed to a catalytic distillation column, the dicyclopentadiene is cracked to cyclopentadiene in the catalytic distillation column, the cyclopentadiene is hydrogenated to cyclopentane in the catalytic distillation column, and the cyclopentane is recovered from the catalytic distillation column. The dicyclopentadiene is fed into and cracked to cyclopentadiene at the bottom of the catalytic distillation column. Hydrogen is then fed to the catalytic distillation column below the catalytic zone, where cyclopentadiene is hydrogenated as it is produced, thus suppressing polymerization of the cyclopentadiene. The resulting cyclopentane and/or cyclopentene vapor phase stream is condensed, thereby producing a liquid stream of cyclopentane and/or cyclopentene and a vapor stream of hydrogen and other off-gas by-products.

    摘要翻译： 公开了将二环戊二烯转化为环戊烷和/或环戊烯的方法，其中将二环戊二烯加入到催化蒸馏塔中，二环戊二烯在催化蒸馏塔中裂解成环戊二烯，环戊二烯在催化蒸馏塔中氢化成环戊烷， 从催化蒸馏塔回收环戊烷。 将二环戊二烯在催化蒸馏塔的底部加入并裂化成环戊二烯。 然后将氢气送入催化区下方的催化蒸馏塔，其中环戊二烯在其生产时被氢化，从而抑制环戊二烯的聚合。 所得到的环戊烷和/或环戊烷气相物流被冷凝，从而产生环戊烷和/或环戊烯的液体流以及氢气和其它废气副产物的蒸汽流。