Selective isoparaffin synthesis from naphtha
    2.
    发明授权
    Selective isoparaffin synthesis from naphtha 失效
    石脑油选择性异链烷烃合成

    公开(公告)号:US5498810A

    公开(公告)日:1996-03-12

    申请号:US293530

    申请日:1994-08-19

    摘要: A process combination is disclosed to selectively upgrade naphtha to obtain products suitable for further upgrading to reformulated fuels. A naphtha feedstock is hydrogenated to saturate aromatics, followed by selective isoparaffin synthesis to yield light and heavy naphtha and isobutane; isobutane and isopentane in the product are obtained in superequilibrium concentrations. The heavy naphtha may be processed by reforming, light naphtha may be isomerized, and isobutane may be upgraded by dehydrogenation, etherification and/or alkylation to yield gasoline components from the process combination suitable for production of reformulated gasoline.

    摘要翻译: 公开了一种方法组合以选择性地升级石脑油以获得适于进一步升级至重整燃料的产品。 将石脑油原料氢化以使芳烃饱和,随后进行选择性异链烷烃合成以产生轻质和重质石脑油和异丁烷; 产物中的异丁烷和异戊烷以超平衡浓度获得。 重石脑油可以通过重整进行处理,轻质石脑油可以被异构化,并且可以通过脱氢,醚化和/或烷基化来提高异丁烷,以从适于生产重整汽油的方法组合产生汽油组分。

    Removal of trace olefins from aromatic hydrocarbons
    3.
    发明授权
    Removal of trace olefins from aromatic hydrocarbons 失效
    从芳烃中除去痕量烯烃

    公开(公告)号:US4795550A

    公开(公告)日:1989-01-03

    申请号:US34811

    申请日:1987-04-03

    IPC分类号: C10G29/20 C10G25/03

    CPC分类号: C10G29/205

    摘要: This invention presents a novel treating process for the removal of trace quantities of olefinic impurities from a hydrocarbon process stream. Specifically, this process operates at liquid phase conditions treating hydrocarbon streams comprising substantially aromatics and naphthenes having Bromine Index values of about 50 to 2,000. A solid medium comprising a crystalline aluminosilicate zeolite and a refractory oxide is used to reduce the level of olefin impurities to Bromine Index values of 0.1 to 50.

    摘要翻译: 本发明提出了一种从烃工艺流中除去痕量烯属杂质的新型处理方法。 具体地说,该方法在液相条件下操作,处理基本上含有约50至2,000的溴指数值的芳烃和环烷烃的烃流。 使用包含结晶硅铝酸盐沸石和难熔氧化物的固体介质将烯烃杂质的含量降低至溴指数值为0.1至50。

    Selective isoparaffin synthesis from naphtha
    5.
    发明授权
    Selective isoparaffin synthesis from naphtha 失效
    石脑油选择性异链烷烃合成

    公开(公告)号:US5235120A

    公开(公告)日:1993-08-10

    申请号:US796562

    申请日:1991-11-21

    摘要: A process combination is disclosed to selectively upgrade naphtha to obtain products suitable for further upgrading to reformulated fuels. A naphtha feedstock is hydrogenated to saturate aromatics, followed by selective isoparaffin synthesis to yield light and heavy naphtha and isobutane. The heavy naphtha may be processed by reforming, light naphtha may be isomerized, and isobutane may be upgraded by dehydrogenation, etherification and/or alkylation to yield gasoline components from the process combination suitable for production of reformulated gasoline.

    摘要翻译: 公开了一种方法组合以选择性地升级石脑油以获得适于进一步升级至重整燃料的产品。 将石脑油原料氢化以使芳烃饱和,随后进行选择性异链烷烃合成以产生轻质和重质石脑油和异丁烷。 重石脑油可以通过重整进行处理,轻质石脑油可以被异构化,并且可以通过脱氢,醚化和/或烷基化来提高异丁烷,以从适用于生产重整汽油的方法组合产生汽油组分。

    Process for the isomerization of cresols
    6.
    发明授权
    Process for the isomerization of cresols 失效
    甲酚异构化的方法

    公开(公告)号:US5053558A

    公开(公告)日:1991-10-01

    申请号:US547705

    申请日:1990-07-03

    IPC分类号: C07C5/27

    CPC分类号: C07C5/2791 Y02P20/52

    摘要: An improved process is disclosed for the isomerization of a non-equilibrium mixture of cresols to achieve a high yield of one or more cresol isomers using a catalyst comprising a Group VIII metal, a modifier, a pentasil zeolite, and an inorganic oxide binder.

    摘要翻译: 公开了一种改进的方法,用于使用包含VIII族金属,改性剂,pentasil沸石和无机氧化物粘合剂的催化剂,使甲酚的非平衡混合物异构化以实现高产率的一种或多种甲酚异构体。

    Process for isomerization of alkylaromatics
    7.
    发明授权
    Process for isomerization of alkylaromatics 失效
    烷基芳烃异构化方法

    公开(公告)号:US4762957A

    公开(公告)日:1988-08-09

    申请号:US60195

    申请日:1987-06-10

    摘要: An improved process for the isomerization of non-equilibrium C.sub.8 aromatics is presented which utilizes a catalytic composition prepared by a novel method of incorporating magnesium into a crystalline aluminosilicate. The catalyst comprises an alumina matrix, a magnesium-containing zeolite, and a Group VIII metal component. It has also been found that the method of magnesium addition can dramatically affect the selectivity to para-xylene, as measured by the loss of C.sub.8 aromatics due to undesirable side-reactions. The method of the instant invention involves addition of the magnesium to a hydrogel comprising pseudoboehmite and zeolite.

    摘要翻译: 提出了一种用于非平衡C8芳族化合物异构化的改进方法,该方法利用通过将镁掺入结晶硅铝酸盐的新方法制备的催化组合物。 催化剂包括氧化铝基质,含镁沸石和VIII族金属组分。 还已经发现,通过由于不期望的副反应由C8芳族化合物的损失测量,镁添加的方法可以显着影响对对二甲苯的选择性。 本发明的方法涉及将镁添加到包含假勃姆石和沸石的水凝胶中。

    Process for reducing benzene content in gasoline
    8.
    发明授权
    Process for reducing benzene content in gasoline 失效
    降低汽油中苯含量的方法

    公开(公告)号:US5120890A

    公开(公告)日:1992-06-09

    申请号:US636354

    申请日:1990-12-31

    IPC分类号: C10G29/20

    CPC分类号: C10G29/205

    摘要: A process is disclosed for reducing benzene and toluene content in light gasoline streams comprising benzene or benzene and toluene but comprising substantially no other aromatic-hydrocarbons. The light gasoline streams may be prepared by distillation of full boiling range gasoline streams from catalytic reforming or fluidized-bed catalytic cracking units. High alkylating agent to benzene ratios are utilized in the presence of a solid alkylation catalyst to achieve a benzene conversion of 70% of more in a single pass through the reaction zone. Alkylating agent is simultaneously injected into the alkylation zone at two or more separate injection points to minimize undersirable side reactions. The alkylation product may be recovered and blended with other gasoline components to produce automotive fuel which is low in benzene content and high octane in rating.

    摘要翻译: 公开了一种用于在包含苯或苯和甲苯的轻汽油流中降低苯和甲苯含量但不包含其它芳族烃的方法。 轻汽油流可以通过从催化重整或流化床催化裂化装置蒸馏全沸程汽油流来制备。 在固体烷基化催化剂的存在下使用高烷基化剂与苯的比例,以在通过反应区的单程中达到70%以上的苯转化率。 烷基化剂在两个或更多个分离的注射点同时注入烷基化区,以最小化不利的副反应。 可以回收烷基化产物并与其他汽油组分混合以产生苯含量低和辛烷值高的汽车燃料。

    Catalyst for the isomerization of aromatics
    9.
    发明授权
    Catalyst for the isomerization of aromatics 失效
    用于芳烃异构化的催化剂

    公开(公告)号:US4939110A

    公开(公告)日:1990-07-03

    申请号:US394038

    申请日:1989-08-14

    CPC分类号: C07C5/2791 Y02P20/52

    摘要: An improved catalyst is disclosed for the conversion of aromatic hydrocarbons which comprise a Group VIII metal, lead, a pentasil zeolite, and an inorganic oxide binder, wherein 80-100% of the Group VIII metal and 60-100% of the lead are contained on the binder. An alkylaromatic isomerization process also is disclosed which is particularly effective for the conversion of ethylbenzene without substantial loss of xylenes.

    摘要翻译: 公开了一种改进的催化剂用于转化包含VIII族金属,铅,pentasil沸石和无机氧化物粘合剂的芳族烃,其中含有80-100%的VIII族金属和60-100%的铅含有 在粘合剂上。 还公开了一种烷基芳族异构化方法,其对乙苯的转化特别有效,而不会显着损失二甲苯。

    Process for the isomerization of aromatics
    10.
    发明授权
    Process for the isomerization of aromatics 失效
    芳烃异构化方法

    公开(公告)号:US4873387A

    公开(公告)日:1989-10-10

    申请号:US287351

    申请日:1988-12-21

    IPC分类号: C07C5/27

    CPC分类号: C07C5/2724

    摘要: An improved process for the isomerization of non-equilibrium C.sub.8 aromatics is presented which utilizes a novel catalytic composition. This catalyst comprises a Group VIII metal component, a bismuth component, and crystalline aluminosilicate zeolite having a silica to alumina ratio of at least 12. This isomerization process has a particular utility for the conversion of ethylbenzene without the deleterious loss of xylene.

    摘要翻译: 提出了一种用于非平衡C8芳族化合物异构化的改进方法,其利用了新的催化组合物。 该催化剂包含第Ⅷ族金属组分,铋组分和二氧化硅与氧化铝之比至少为12的结晶硅铝酸盐沸石。该异构化方法对乙苯的转化具有特殊的用途,而没有有害的二甲苯损失。