Gasoline upgrading process
    1.
    发明授权
    Gasoline upgrading process 失效
    汽油升级过程

    公开(公告)号:US5318690A

    公开(公告)日:1994-06-07

    申请号:US1681

    申请日:1993-01-07

    摘要: Low sulfur gasoline is produced from a catalytically cracked, sulfur-containing naphtha by fractionating the naphtha feed into a low boiling fraction in which the majority of the sulfur is present in the form of mercaptans and a high-boiling fraction in which the sulfur is predominantly in non-mercaptan form such as thiophenes. The low boiling fraction is desulfurized by a non-hydrogenatile mercaptan extraction process which retains the olefins present in this fraction. The second fraction is desulfurized by hydrodesulfurization, which results in some saturation of olefins and loss of octane. The octane loss is restored by treatment over an acidic catalyst, preferably an intermediate pore size zeolite such as ZSM-5, to form a low sulfur gasoline product with an octane number comparable to that of the feed naphtha but which contains some recombined sulfur in the form or mercaptans which are removed in a final hydrotreatment.

    摘要翻译: 通过将石脑油进料分馏成低沸点馏分,其中大部分硫以硫醇和高沸点馏分的形式存在,低硫汽油由催化裂解的含硫石脑油生产,其中硫主要是 在非硫醇形式如噻吩中。 低沸点馏分通过非挥发性硫醇萃取方法进行脱硫,该方法保留存在于该馏分中的烯烃。 第二部分通过加氢脱硫脱硫,导致烯烃的一些饱和和辛烷值的损失。 通过在酸性催化剂,优选中等孔径的沸石如ZSM-5上处理来恢复辛烷值损失,以形成辛烷值与供应石脑油相当的低硫汽油产物,但其中含有一些重组硫 形式或硫醇,其在最终加氢处理中被除去。

    Gasoline upgrading process
    2.
    发明授权
    Gasoline upgrading process 失效
    汽油升级过程

    公开(公告)号:US5413696A

    公开(公告)日:1995-05-09

    申请号:US891124

    申请日:1992-06-01

    摘要: Low sulfur gasoline of relatively high octane number is produced from a catalytically cracked, sulfur-containing naphtha by hydrodesulfurization followed by treatment over an acidic catalyst comprising zeolite beta. The treatment over the acidic catalyst in the second step restores the octane loss which takes place as a result of the hydrogenative treatment and results in a low sulfur gasoline product with an octane number comparable to that of the feed naphtha. In favorable cases, using feeds of extended end point such as heavy naphthas with 95 percent points above about 380.degree. F. (about 193.degree. C.), improvements in both product octane and yield relative to the feed may be obtained.

    摘要翻译: 相对高辛烷值的低硫汽油通过加氢脱硫然后在包含β沸石的酸性催化剂上处理由催化裂解的含硫石脑油生产。 在第二步骤中对酸性催化剂的处理恢复了由于氢化处理而发生的辛烷值损失,并导致具有与进料石脑油相当的辛烷值的低硫汽油产物。 在有利的情况下,使用延伸终点的原料如重质石脑油,高于约380°F(约193℃)为95%,可以获得相对于进料的产品辛烷值和产率的改善。

    Hydrocarbon upgrading process
    3.
    发明授权
    Hydrocarbon upgrading process 失效
    碳氢化合物升级过程

    公开(公告)号:US5399258A

    公开(公告)日:1995-03-21

    申请号:US988492

    申请日:1992-12-10

    摘要: Low sulfur gasoline of relatively high octane number is produced from a catalytically cracked, sulfur-containing naphtha by hydrodesulfurization followed by treatment over an acidic catalyst under endothermic conditions in a second reaction zone. Heat is added to the endothermic reaction zone to initiate and maintain octane restoring reactions. The preferred acidic catalyst is an intermediate pore size zeolite such as ZSM-5. The treatment over the acidic catalyst in the second step restores the octane loss which takes place as a result of the hydrogenative treatment and results in a low sulfur gasoline product with an octane number comparable to that of the feed naphtha. The addition of heat at the second zone prolongs hydrodesulfurization catalyst life by allowing a lower hydrodesulfurization reactor temperature. The addition of heat also maximizes octane increase in the second zone.

    摘要翻译: 相对高辛烷值的低硫汽油由催化裂化的含硫石脑油通过加氢脱硫然后在酸性催化剂上在吸热条件下在第二反应区中进行处理。 将热量加入到吸热反应区中以引发和维持辛烷恢复反应。 优选的酸性催化剂是中等孔径沸石,例如ZSM-5。 在第二步骤中对酸性催化剂的处理恢复了由于氢化处理而发生的辛烷值损失,并导致具有与进料石脑油相当的辛烷值的低硫汽油产物。 通过允许较低的加氢脱硫反应器温度,在第二区域的加热延长了加氢脱硫催化剂寿命。 加热也使第二区域的辛烷值增加最大化。

    Gasoline upgrading process
    4.
    发明授权
    Gasoline upgrading process 失效
    汽油升级过程

    公开(公告)号:US5352354A

    公开(公告)日:1994-10-04

    申请号:US891134

    申请日:1992-06-01

    摘要: Low sulfur gasoline of relatively high octane number is produced from a catalytically cracked, sulfur-containing naphtha by hydrodesulfurization followed by treatment over an acidic catalyst defined by its x-ray diffraction pattern and preferably comprising the synthetic zeolite MCM-22. The treatment over the acidic catalyst in the second step restores the octane loss which takes place as a result of the hydrogenative treatment and results in a low sulfur gasoline product with an octane number comparable to that of the feed naphtha. In favorable cases, using feeds of extended end point such as heavy naphthas with 95 percent points above about 380.degree. F. (about 193.degree. C.), improvements in both product octane and yield relative to the feed may be obtained.

    摘要翻译: 相对高辛烷值的低硫汽油由催化裂化的含硫石脑油通过加氢脱硫然后在由其X射线衍射图定义的酸性催化剂上处理,优选包含合成沸石MCM-22制备。 在第二步骤中对酸性催化剂的处理恢复了由于氢化处理而发生的辛烷值损失,并导致具有与进料石脑油相当的辛烷值的低硫汽油产物。 在有利的情况下,使用延伸终点的原料如重质石脑油,高于约380°F(约193℃)为95%,可以获得相对于进料的产品辛烷值和产率的改善。

    Gasoline upgrading process
    5.
    发明授权
    Gasoline upgrading process 失效
    汽油升级过程

    公开(公告)号:US5360532A

    公开(公告)日:1994-11-01

    申请号:US42189

    申请日:1993-04-02

    IPC分类号: C10G67/04 C10G69/08 C10G45/00

    CPC分类号: C10G69/08 C10G67/04

    摘要: Low sulfur gasoline is produced from a catalytically cracked, sulfur-containing naphtha by fractionating the naphtha feed into a low boiling fraction in which the majority of the sulfur is present in the form of mercaptans and a high-boiling fraction in which the sulfur is predominantly in non-mercaptan form such as thiophenes. The low boiling fraction is desulfurized by a non-hydrogenative mercaptan extraction process which retains the olefins which are present in this fraction. The second fraction is desulfurized by hydrodesulfurization, which results in some saturation of olefins and loss of octane. The octane loss is restored by treatment over an acidic catalyst, preferably an intermediate pore size zeolite such as ZSM-5, to form a low sulfur gasoline product with an octane number comparable to that of the feed naphtha but which contains some recombined sulfur in the form or mercaptans which are removed in the non-hydrogenative mercaptan extraction step.

    摘要翻译: 通过将石脑油进料分馏成低沸点馏分,其中大部分硫以硫醇和高沸点馏分的形式存在,低硫汽油由催化裂解的含硫石脑油生产,其中硫主要是 在非硫醇形式如噻吩中。 低沸点馏分通过保留存在于该馏分中的烯烃的非氢化硫醇萃取方法进行脱硫。 第二部分通过加氢脱硫脱硫,导致烯烃的一些饱和和辛烷值的损失。 通过在酸性催化剂,优选中等孔径的沸石如ZSM-5上处理来恢复辛烷值损失,以形成辛烷值与供应石脑油相当的低硫汽油产物,但其中含有一些重组硫 在非氢化硫醇提取步骤中除去的形式或硫醇。

    Method and apparatus for injecting liquid hydrocarbon feed and steam
into a catalytic cracking zone
    6.
    发明授权
    Method and apparatus for injecting liquid hydrocarbon feed and steam into a catalytic cracking zone 失效
    将液体烃进料和蒸汽注入催化裂化区的方法和设备

    公开(公告)号:US4555328A

    公开(公告)日:1985-11-26

    申请号:US572039

    申请日:1984-01-19

    CPC分类号: C10G11/18 B01J8/085

    摘要: A process and an apparatus for atomizing a liquid hydrocarbon feed and injecting it into a reaction zone, such as a riser conversion zone or a dense fluid bed reactor of a fluid catalytic cracking unit, is disclosed. The hydrocarbon feed passes through a central passage with steam flowing concurrently in a concentrically aligned passage. By providing a flow restriction means in each hydrocarbon passage and each steam passage, substantially equal quantities of hydrocarbon and steam can be supplied to each of a plurality of hydrocarbon-steam nozzles so as to provide a uniform dispersion of small droplets of hydrocarbons.

    摘要翻译: 公开了一种用于雾化液体烃进料并将其注入反应区,例如提升管转化区或流化催化裂化装置的致密流化床反应器的方法和装置。 烃进料通过中心通道,蒸汽同时在同心对准的通道中流动。 通过在每个烃通道和每个蒸汽通道中提供流量限制装置,可以向多个烃蒸汽喷嘴中的每一个提供基本上相等数量的烃和蒸汽,以便提供小液滴烃的均匀分散。

    Apparatus for injecting liquid hydrocarbon feed and steam into a
catalytic cracking zone
    7.
    发明授权
    Apparatus for injecting liquid hydrocarbon feed and steam into a catalytic cracking zone 失效
    将液体烃进料和蒸汽注入催化裂化区的装置

    公开(公告)号:US4640463A

    公开(公告)日:1987-02-03

    申请号:US770940

    申请日:1985-08-30

    IPC分类号: B01J8/08 C10G11/18 B05B7/00

    CPC分类号: B01J8/085 C10G11/18

    摘要: An apparatus for atomizing a liquid hydrocarbon feed and injecting it into a reaction zone, such as a riser conversion zone or a dense fluid bed reactor of a fluid catalytic cracking unit, is disclosed. The hydrocarbon feed passes through a central passage with steam flowing concurrently in a concentrically aligned passage. By providing a flow restriction means in each hydrocarbon passage and each steam passage, substantially equal quantities of hydrocarbon and steam can be supplied to each of a plurality of hydrocarbon-steam nozzles so as to provide a uniform dispersion of small droplets of hydrocarbons.

    摘要翻译: 公开了一种用于雾化液体烃进料并将其注入反应区,例如提升管转化区或流化催化裂化装置的致密流化床反应器的装置。 烃进料通过中心通道,蒸汽同时在同心对准的通道中流动。 通过在每个烃通道和每个蒸汽通道中提供流量限制装置,可以向多个烃蒸汽喷嘴中的每一个提供基本上相等数量的烃和蒸汽,以便提供小液滴烃的均匀分散。

    Inert gas enrichment in FCC unit regenerators
    8.
    发明授权
    Inert gas enrichment in FCC unit regenerators 失效
    FCC装置再生器中的惰性气体富集

    公开(公告)号:US4421636A

    公开(公告)日:1983-12-20

    申请号:US366951

    申请日:1982-04-09

    IPC分类号: C10G11/18 B01J37/14

    CPC分类号: C10G11/187

    摘要: The concentration of sulfur trioxides in an FCC unit regenerator is maintained within environmentally accepted limits, while maintaining an adequate amount of gas for fluidizing conditions in the regenerator, by admixing the regenerator oxygen-containing gas with an inert gas. The quantity of the inert gas is controlled by a control loop measuring the pressure drop in the regenerator, and adjusting the amount of the inert gas to maintain the pressure drop within the predetermined limits.

    摘要翻译: FCC装置再生器中的三氧化硫的浓度通过将再生器含氧气体与惰性气体混合而保持在环境可接受的限度内,同时保持足够量的气体用于再生器中的流化条件。 惰性气体的量由测量再生器压降的控制回路控制,并且调节惰性气体的量以将压力降保持在预定的限度内。