Use of catalytic distillation to produce cyclopentane or cyclopentene
    11.
    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

    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。

    Process for forming cyclopentane from dicyclopentadiene
    12.
    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

    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。

    Feedstock preparation of olefins for oligomerization to produce fuels
    16.
    发明授权
    Feedstock preparation of olefins for oligomerization to produce fuels 有权
    用于低聚制备燃料的烯烃原料制备

    公开(公告)号:US07741526B2

    公开(公告)日:2010-06-22

    申请号:US11489114

    申请日:2006-07-19

    IPC分类号: C01L1/16

    摘要: A feedstock containing at least 1 wt % butenes, at least 1 wt % pentenes, at least 1 wt % hexenes, at least 10 wppm C4 dienes, at least 10 wppm C5 dienes, and optionally at least 10 wppm C6 dienes can be selectively hydrogenated over a catalyst (e.g., a noble metal) to form a stream containing 100 wppm to 4000 wppm total dienes. The hydrogenated stream, and an olefinic recycle stream having less than 10 wt. % C1+ moieties, can be contacted with a molecular sieve catalyst, e.g., at a recycle to feed ratio between 0.1 and 3.0, at a WHSV of at least 1.0 based on olefin in the feed, and at a reactor ΔT no greater than 40° F. (22° C.), thus forming a reaction product that can then be separated into a distillate, e.g., having from 1 wt % to 30 wt % non-normal C9 olefins, and the aforementioned olefinic recycle stream.

    摘要翻译: 含有至少1wt%丁烯,至少1wt%戊烯,至少1wt%己烯,至少10wppm C 4二烯,至少10wt%C 5二烯和任选至少10wt%C 6二烯的原料可以被选择性氢化 通过催化剂(例如,贵金属)形成含有100wppm至4000wppm总二烯的流。 氢化物流和具有小于10wt。 %C1 +部分可以与分子筛催化剂接触,例如,在进料比为0.1至3.0的循环至进料比下,在进料中基于烯烃的至少1.0的WHSV,并且在反应器&Dgr; T不大于 40°F(22℃),从而形成反应产物,然后可将其分离成馏出物,例如具有1重量%至30重量%的非正常C 9烯烃和上述烯烃再循环流。

    Hydrocarbon compositions useful for producing fuels and methods of producing the same
    17.
    发明授权
    Hydrocarbon compositions useful for producing fuels and methods of producing the same 有权
    用于生产燃料的烃组合物及其制备方法

    公开(公告)号:US07692049B2

    公开(公告)日:2010-04-06

    申请号:US11342374

    申请日:2006-01-27

    IPC分类号: C10M105/04

    摘要: A hydrocarbon composition comprises at least 90 wt. % of C9 to C20 non-normal olefins, non-normal saturates or combinations thereof based on the weight of the hydrocarbon composition, at least 2 wt. % and not greater than 25 wt. % of C9 hydrocarbons based on the weight of the hydrocarbon composition, and less than 15 wt. % of C17+ hydrocarbons based on the weight of the hydrocarbon composition, wherein said hydrocarbon composition has a specific gravity at 15° C. of at least 0.730 and less than 0.775. The composition is produced by oligomerization of at least one C3 to C8 olefin and an olefinic recycle stream containing no more than 10 wt. % of C10+ non-normal olefins. The composition is useful in producing fuel blends, such as jet fuel and diesel fuel.

    摘要翻译: 烃组合物包含至少90wt。 至少2重量%的C9至C20非正构烯烃的%,非正常饱和物或其组合,基于烃组合物的重量计, %且不大于25wt。 基于烃组合物重量的C 9烃的%,小于15wt。 基于烃组合物重量的C17 +烃的%,其中所述烃组合物在15℃下的比重为至少0.730且小于0.775。 该组合物是通过使至少一种C 3至C 8烯烃和含有不超过10wt。 %的C10 +非正常烯烃。 该组合物可用于生产燃料混合物,例如喷气燃料和柴油燃料。

    Olefin oligomerization
    18.
    发明授权
    Olefin oligomerization 有权
    烯烃低聚

    公开(公告)号:US07678953B2

    公开(公告)日:2010-03-16

    申请号:US11342000

    申请日:2006-01-27

    IPC分类号: C07C2/02

    CPC分类号: C10G50/00 C07C2/12 C07C11/02

    摘要: A process for producing a hydrocarbon composition that comprises contacting a feed stream, that comprises at least one C3 to C8 olefin, and an olefinic recycle stream, that comprises a first olefinic recycle stream and no more than 10 wt % of C10+ non-normal olefins, with a molecular sieve catalyst in a reaction zone under olefin oligomerization conditions producing an oligomerization effluent stream; separating the oligomerization effluent stream to produce a first olefinic stream, that has a weight ratio of C4−/(C5-C8) molecules from about 0.8 to about 1.2 times the weight ratio of C4−/(C5-C8) molecules found in the oligomerization effluent stream, and a first hydrocarbon product stream, that comprises at least 1 wt % and no more than 30 wt % of C9 non-normal olefin; and splitting the first olefinic stream to produce the first olefinic recycle stream and a first purge stream.

    摘要翻译: 一种用于生产烃组合物的方法,其包括使包含至少一种C 3至C 8烯烃的进料流和烯烃循环料流接触,所述进料流包含第一烯烃循环料流和不超过10重量%的C 10+非正烯烃 在烯烃低聚条件下在反应区中分子筛催化剂生成低聚流出物流; 分离低聚流出物流以产生第一烯烃流,其具有C4- /(C5-C8)分子的重量比约为所述C4- /(C5-C8)分子的重量比的约0.8至约1.2倍。 低聚流出物流和第一烃产物流,其包含至少1重量%且不超过30重量%的C 9非正构烯烃; 和分裂第一烯烃流以产生第一烯烃再循环流和第一吹扫流。