Passivation of metal contaminated cracking catalysts
    1.
    发明授权
    Passivation of metal contaminated cracking catalysts 失效
    金属污染裂化催化剂的钝化

    公开(公告)号:US4927795A

    公开(公告)日:1990-05-22

    申请号:US264293

    申请日:1988-10-28

    IPC分类号: B01J38/48 C10G11/04

    摘要: This invention comprises improvements to processes for the catalytic cracking of hydrocarbon feedstocks. One such improvement to catalytic cracking processes provides compositions comprising metals passivating agents having an increased degree of stability. These compositions comprise aqueous suspensions of antimony by vinyl copolymers, aqueous suspensions of antimony oxide by diesters of phosphoric acid, or aqueous suspensions of antimony oxide by cellulose derivatives. Another improvement to catalytic cracking processes provides a process for reducing the viscosity of liquid suspensions of metals passivating agents without substantially reducing the stability of the liquid suspension by the utilization of at least two different particle ranges of metals passivating agents. A further improvement to catalytic cracking processes provides an efficient utilization of metals passivating agents by introducing the selected agent into the catalyst regeneration cycle of a catalytic cracking unit.

    摘要翻译: 本发明包括对烃原料的催化裂化方法的改进。 催化裂化方法的一个这样的改进提供了包含具有增加的稳定性的金属钝化剂的组合物。 这些组合物包含乙烯基共聚物的锑水悬浮液,磷酸二酯的氧化锑水悬浮液,或纤维素衍生物的氧化锑水悬浮液。 催化裂化方法的另一改进提供了降低金属钝化剂的液体悬浮液的粘度的方法,而不会通过利用至少两种不同的金属钝化剂的不同颗粒范围来显着降低液体悬浮液的稳定性。 催化裂化方法的进一步改进通过将所选择的试剂引入催化裂化装置的催化剂再生循环来提供金属钝化剂的有效利用。

    Reclaiming used lubricating oils
    3.
    发明授权
    Reclaiming used lubricating oils 失效
    回收二手润滑油

    公开(公告)号:US4151072A

    公开(公告)日:1979-04-24

    申请号:US838773

    申请日:1977-10-03

    IPC分类号: C10M175/00 C10M11/00

    CPC分类号: C10M175/0016

    摘要: An integrated process universally applicable for the reclaiming of used lubricating oils, regardless of the contaminants or previous additive systems contained therein, is provided to produce an intermediate low-ash oil or a high-grade lube oil stock which comprises (a) contacting the used oil with an aqueous ammonium salt treating agent, (b) removing a major portion of water, (c) separating the oil phase from the resulting residual product, (d) subjecting the resulting separated oil to hydrotreating and thereafter (e) stripping the resulting hydrotreated lube oil stock. Optionally the low-ash product of step (c) can be recovered for use as a fuel oil, in grease formulations, or in the preparation of some types of lubricating oil formulations.

    摘要翻译: 提供了普遍适用于回收利用的润滑油的综合方法,不管其中含有的污染物或以前的添加剂系统如何,以生产中间体低灰分油或高级润滑油原料,其包含(a)使用过的 (b)除去大部分水,(c)从所得残留物中分离出油相,(d)将得到的分离的油进行加氢处理,然后(e)将得到的油相 加氢处理润滑油原料。 任选地,步骤(c)的低灰分产物可以回收用作燃料油,润滑脂制剂或制备某些类型的润滑油制剂。

    Passivation of metal contaminated cracking catalysts

    公开(公告)号:US4939109A

    公开(公告)日:1990-07-03

    申请号:US907767

    申请日:1986-09-15

    摘要: This invention comprises improvements to processes for the catalytic cracking of hydrocarbon feedstocks. One such improvement to catalytic cracking processes provides compositions comprising metals passivating agents having an increased degree of stability. These compositions comprise aqueous suspensions of antimony by vinyl copolymers, aqueous suspensions of antimony oxide by diesters of phosphoric acid, or aqueous suspensions of antimony oxide by cellulose derivatives. Another improvement to catalytic cracking processes provides a process for reducing the viscosity of liquid suspensions of metals passivating agents without substantially reducing the stability of the liquid suspension by the utilization of at least two different particle ranges of metals passivating agents. A further improvement to catalytic cracking processes provides an efficient utilization of metals passivating agents by introducing the selected agent into the catalyst regeneration cycle of a catalytic cracking unit.

    Purification and hydrogenation of furan concentrates
    8.
    发明授权
    Purification and hydrogenation of furan concentrates 失效
    呋喃浓缩物的纯化和氢化

    公开(公告)号:US3994931A

    公开(公告)日:1976-11-30

    申请号:US547941

    申请日:1975-02-07

    IPC分类号: C07D307/36 C07D307/02

    CPC分类号: C07D307/36

    摘要: Furan concentrates containing deleterious unsaturated contaminants including sulfur compounds are purified prior to hydrogenation by contacting with zinc oxide either prior to or subsequent to separation of high boiling materials from the concentrate with the result that the furan concentrate is hydrogenated to high purity product comprising either furan and saturated materials or tetrahydrofuran and saturated materials with extended hydrogenation catalyst life. In a preferred embodiment, the furan concentrate is obtained as the by-product stream from hydrocarbon oxidative dehydrogenation processes and is subjected to distillation to remove therefrom materials boiling above about 80.degree. C prior to contacting with zinc oxide and hydrogenation.

    摘要翻译: 含有有害的不饱和污染物(包括硫化合物)的呋喃浓缩物在氢化之前通过与浓缩物分离高沸点物质之前或之后与氧化锌接触进行纯化,结果将呋喃浓缩物氢化成高纯度产物,其包含呋喃和 饱和材料或四氢呋喃和饱和材料,延长氢化催化剂寿命。 在优选的实施方案中,从烃类氧化脱氢方法获得作为副产物流的呋喃浓缩物,并在与氧化锌接触和氢化之前,将沸点高于约80℃的物质进行蒸馏除去。

    Separation of monoolefins from other monoolefins
    9.
    发明授权
    Separation of monoolefins from other monoolefins 失效
    单烯烃与其它单烯烃的分离

    公开(公告)号:US4398052A

    公开(公告)日:1983-08-09

    申请号:US140282

    申请日:1980-04-14

    CPC分类号: C07C7/156

    摘要: A process and apparatus for separating monoolefins from other monoolefins comprising contacting a mixture of different monoolefins with a complexing agent selected from the group consisting of copper (I) salts of sulfonic acids and copper (I) salts of dialkyl phosphates and a suitable hydrocarbon solvent for the complexing agent under such conditions that the monoolefins form different strength complexes with the complexing agent. The different strength of the complexes provides a mechanism by which even closely boiling monoolefin isomers may be separated.

    摘要翻译: 一种用于从其它单烯烃中分离单烯烃的方法和装置,包括使不同单烯烃的混合物与选自磺酸铜(I)盐和磷酸二烷基铜(I)盐和适合的烃溶剂的络合剂接触, 该络合剂在这样的条件下使单烯烃与络合剂形成不同的强度配合物。 络合物的不同强度提供了甚至可以分离甚至接近沸腾的单烯烃异构体的机理。