利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

95 条记录 (耗时 0.022 秒)

    HF alkylation process
    31.
    发明授权
    HF alkylation process 失效
    HF烷基化方法

    公开(公告)号：US4891466A

    公开(公告)日：1990-01-02

    申请号：US237815

    申请日：1988-08-29

    申请人： Joseph A. Kocal

    发明人： Joseph A. Kocal

    IPC分类号： C07C2/62 ,  C07C2/70

    CPC分类号： C07C2/62 ,  C07C2/70 ,  C07C2527/054 ,  C07C2527/1206 ,  Y02P20/582

    摘要： A novel liquid acid catalyzed alkylation process utilizing a liquid acid catalyst comprising a surfactant and a liquid acid is disclosed which incorporates a fixed bed of contact material to improve the alkylation reaction zone efficiency. The fixed bed of contact material also allows the process to be efficiently operated at lower acid to olefin mole/mole feed ratios than normally used.

    摘要翻译： 公开了一种利用包含表面活性剂和液体酸的液体酸催化剂的新的液体酸催化的烷基化方法，其包含固定的接触材料床以改善烷基化反应区效率。 接触材料的固定床还允许该方法以比通常使用的更低的酸与烯烃摩尔/摩尔进料比进行有效的操作。

    Regeneration of dehydrocyclodimerization catalyst
    32.
    发明授权
    Regeneration of dehydrocyclodimerization catalyst 失效
    脱氢环化二聚催化剂的再生

    公开(公告)号：US4795845A

    公开(公告)日：1989-01-03

    申请号：US138187

    申请日：1987-12-28

    申请人： David C. Martindale ,  Joseph A. Kocal ,  Tai-Hsiang Chao

    发明人： David C. Martindale ,  Joseph A. Kocal ,  Tai-Hsiang Chao

    IPC分类号： B01J29/40 ,  B01J29/44 ,  B01J29/65 ,  B01J29/70 ,  B01J29/90 ,  C07C2/76 ,  C07C5/27

    CPC分类号： C07C5/2724 ,  B01J29/40 ,  B01J29/44 ,  B01J29/90 ,  C07C2/76 ,  B01J2229/26 ,  B01J2229/36 ,  B01J2229/42 ,  B01J29/65 ,  B01J29/70 ,  C07C2521/04 ,  C07C2523/08 ,  C07C2527/14 ,  C07C2529/40 ,  Y02P20/584

    摘要： A process for catalytic dehydrocyclodimerization and regeneration of the catalyst. C.sub.2 to C.sub.5 aliphatic hydrocarbons are reacted to produce aromatics, using a catalyst of a composition especially adapted to minimize deposition of coke on the catalyst. The catalyst is comprised of alumina which contains phosphorus, gallium, and a crystalline aluminosilicate having a silica to alumina ratio of at least 12. The use of this catalyst has resulted in a five-fold reduction in the rate of coke deposition, compared to a conventional dehydrocyclodimerization catalyst. However, the activity of this catalyst once it becomes deactivated is only recovered by burning the coke accumulated upon the deactivated catalyst at catalyst regeneration conditions in the presence of an oxygen-containing gas.

    摘要翻译： 一种催化脱氢环化二聚和催化剂再生的方法。 使用特别适合于使焦炭在催化剂上的沉积最小化的组合物的催化剂使C2至C5脂族烃反应以产生芳族化合物。 催化剂由含有磷，镓和二氧化硅与氧化铝之比至少为12的结晶硅铝酸盐的氧化铝组成。与此相比，该催化剂的使用导致焦炭沉积速率降低了五倍 常规脱氢环化二聚催化剂。 然而，一旦催化剂失活，该催化剂的活性只有在含氧气体存在下，在催化剂再生条件下燃烧积聚在失活催化剂上的焦炭来回收。

    Regeneration of dehydrocyclodimerization catalyst
    33.
    发明授权
    Regeneration of dehydrocyclodimerization catalyst 失效
    脱氢环化二聚催化剂的再生

    公开(公告)号：US4724271A

    公开(公告)日：1988-02-09

    申请号：US33136

    申请日：1987-03-31

    申请人： David C. Martindale ,  Joseph A. Kocal ,  Tai-Hsiang Chao

    发明人： David C. Martindale ,  Joseph A. Kocal ,  Tai-Hsiang Chao

    IPC分类号： B01J29/40 ,  B01J29/44 ,  B01J29/65 ,  B01J29/70 ,  B01J29/90 ,  C07C2/76 ,  C07C5/27 ,  C07C5/22

    CPC分类号： C07C5/2724 ,  B01J29/40 ,  B01J29/44 ,  B01J29/90 ,  C07C2/76 ,  B01J2229/26 ,  B01J2229/36 ,  B01J2229/42 ,  B01J29/65 ,  B01J29/70 ,  C07C2521/04 ,  C07C2523/08 ,  C07C2527/14 ,  C07C2529/40 ,  Y02P20/584

    摘要： A process for catalytic dehydrocyclodimerization and regeneration of the catalyst. C.sub.2 to C.sub.5 aliphatic hydrocarbons are reacted to produce aromatics, using a water-sensitive catalyst of a composition especially adapted to minimize deposition of coke on the catalyst. The catalyst is comprised of alumina which contains phosphorus, gallium, and a crystalline aluminosilicate having a silica to alumina ratio of at least 12. The use of this catalyst has resulted in a five-fold reduction in the rate of coke deposition, compared to a conventional dehydrocyclodimerization catalyst. However, the activity of this catalyst is significantly reduced by exposure to water at the temperatures normally used in removing the coke, which is accomplished by burning the coke in a combustion zone in the presence of oxygen, producing carbon dioxide and water. At least a portion of the gas leaving the combustion zone catalyst bed is combined with air and recycled back to the combustion zone. This mode of operation causes the concentration of water in the recycled stream to increase to an unacceptable value. Therefore, to obtain the benefit of this superior catalyst, it is necessary to utilize water removal steps in the catalyst regeneration procedure.

    摘要翻译： 一种催化脱氢环化二聚和催化剂再生的方法。 使用特别适合于使焦炭在催化剂上的沉积最小化的组合物的水敏催化剂，使C2至C5脂族烃反应以产生芳族化合物。 催化剂由含有磷，镓和二氧化硅与氧化铝之比至少为12的结晶硅铝酸盐的氧化铝组成。与此相比，该催化剂的使用导致焦炭沉积速率降低5倍 常规脱氢环化二聚催化剂。 然而，在通常用于除去焦炭的温度下，该催化剂的活性显着降低，这通过在氧气存在下在燃烧区中燃烧焦炭，产生二氧化碳和水来实现。 离开燃烧区催化剂床的气体的至少一部分与空气结合并再循环回燃烧区。 这种操作模式导致再循环流中的水的浓度增加到不可接受的值。 因此，为了获得该优良催化剂的优点，需要在催化剂再生方法中利用除水步骤。

    Catalytic process for continuously generating polyols
    36.
    发明授权
    Catalytic process for continuously generating polyols 有权
    用于连续生成多元醇的催化方法

    公开(公告)号：US08222464B2

    公开(公告)日：2012-07-17

    申请号：US13193200

    申请日：2011-07-28

    申请人： Tom N. Kalnes ,  John Q. Chen ,  Joseph A. Kocal

    发明人： Tom N. Kalnes ,  John Q. Chen ,  Joseph A. Kocal

    IPC分类号： C07C29/00 ,  C07C31/18

    CPC分类号： C07C29/132 ,  C07C31/20

    摘要： A catalytic process for generating at least one polyol from a feedstock comprising cellulose is performed in a continuous manner. The process involves, contacting, continuously, hydrogen, water, and a feedstock comprising cellulose, with a catalyst to generate an effluent stream comprising at least one polyol, water, hydrogen, and at least one co-product. The water, hydrogen, and at least one co-product are separated from the effluent stream and recycled to the reaction zone. The polyol is recovered from the effluent stream.

    摘要翻译： 以包含纤维素的原料生成至少一种多元醇的催化方法是以连续方式进行的。 该方法包括使含有纤维素的氢，水和原料与催化剂连续地接触，以产生包含至少一种多元醇，水，氢和至少一种共同产物的流出物流。 将水，氢和至少一种副产物与流出物流分离并再循环至反应区。 从流出物流中回收多元醇。