Process and heat exchange apparatus for solid particles for double
regeneration in catalytic cracking
    1.
    发明授权
    Process and heat exchange apparatus for solid particles for double regeneration in catalytic cracking 失效
    用于催化裂化双重再生的固体颗粒的工艺和热交换装置

    公开(公告)号:US5324696A

    公开(公告)日:1994-06-28

    申请号:US976044

    申请日:1992-11-13

    CPC分类号: C10G11/182

    摘要: A catalyst, e.g., a cracking catalyst, and a part of the regeneration fumes are drawn off from the dense catalytic bed of a second regenerator (9) and are introduced by force of gravity into an external exchanger (21) at a junction point beneath the level of the dense bed of the second regenerator. The heat exchange takes place in the bottom part of the exchanger below the junction point. Between the bottom end of the exchanger and the region above the junction point a dense bed zone is formed at a level which is substantially at the height of the dense bed in the regenerator and a discharge zone (27), of suitable size, for the regeneration gases and fluidization gas. The gases and fumes from the exchanger are removed in the diluted fluidized phase from the second regenerator through a conduit (28), while the catalyst is recycled in to the bed of the first regenerator through a conduit (34).

    摘要翻译: 催化剂,例如裂化催化剂和一部分再生烟雾从第二再生器(9)的致密催化床排出,并通过重力作用引入到外部交换器(21)内的连接点 第二再生器的致密层的水平。 热交换发生在交换器底部的交汇点下方。 在交换器的底端和接合点之上的区域之间,致密的床区形成在基本上位于再生器中的致密床的高度处的水平面和适当尺寸的排放区(27),用于 再生气体和流化气体。 来自交换器的气体和烟雾在稀释的流化相中通过导管(28)从第二再生器中除去,同时催化剂通过导管(34)再循环到第一再生器的床中。

    Thermal regulation process for a solid in a heat exchanger using
cylindrical tube surfaces
    2.
    发明授权
    Thermal regulation process for a solid in a heat exchanger using cylindrical tube surfaces 失效
    使用圆柱形管表面的热交换器中固体的热调节过程

    公开(公告)号:US5773379A

    公开(公告)日:1998-06-30

    申请号:US545870

    申请日:1995-11-13

    摘要: The invention concerns a process for thermal regulation in a continuous fluidized bed treatment process for a powdered solid, wherein the solid is treated in a fluidized bed treatment zone, at least a portion of the solid is extracted from said zone and transported to an external heat exchanger (21) containing at least one array (22) of thermal exchange tubes in which vaporizable cooling fluid circulates, fluidized or mobile bed thermal regulation by indirect heat exchange with the fluid is carried out and the portion of regulated solid is extracted for recycling into the treatment zone or to another treatment zone (1). More precisely, said portion of solid is circulated in descending mode by means of an inert or non inert fluidization fluid across the array of tubes (22) which are wound such that the current of solid intersects said tubes and that the cooling fluid is circulated in one direction in the array of tubes.

    摘要翻译: PCT No.PCT / FR94 / 00522 Sec。 371日期:1995年11月13日 102(e)日期1995年11月13日PCT 1994年5月4日PCT PCT。 第WO94 / 26845号公报 日期1994年11月24日本发明涉及用于粉末状固体的连续流化床处理方法中的热调节方法,其中固体在流化床处理区中处理,至少一部分固体从所述区域中提取, 运送到包含至少一个热交换管阵列(22)的外部热交换器(21),其中可流动的冷却流体循环,流化床或移动床通过与流体的间接热交换进行热调节,并且调节的固体部分 被提取用于再循环到处理区或另一处理区(1)。 更准确地说,所述固体部分借助惰性或非惰性流化流体在下降模式下循环穿过管(22)阵列,所述管(22)被卷绕成使得固体电流与所述管相交,并且冷却流体在 管阵列的一个方向。

    Method of heat exchange of solid particles for regeneration in catalytic
cracking
    3.
    发明授权
    Method of heat exchange of solid particles for regeneration in catalytic cracking 失效
    用于催化裂化再生的固体颗粒的热交换方法

    公开(公告)号:US5286690A

    公开(公告)日:1994-02-15

    申请号:US870862

    申请日:1992-04-20

    摘要: The invention relates to a method of and an apparatus for fluidised bed regeneration of a catalyst containing coke.The catalyst and some of the regeneration fumes are drawn off from the dense bed of a regenerator (1) and are introduced by gravity into an external exchanger at a junction point below the level of the dense bed of the regenerator. Heat exchange is carried out in the lower part of the exchanger (7) below the junction point. From the bottom end of the exchanger up to above the junction point a dense bed zone is created the level of which is established substantially at the height of the dense bed in the regenerator and a zone (15) of suitable size for the escape of regeneration gases and fluidisation gas. The gases and fumes are drawn off into the dilute fluidised phase (18) of the regenerator through a duct (17) while the catalyst is recycled to the dense bed of the regenerator through a different duct (25) from that in which the fluidisation air is circulating.Application to the regeneration of fluid bed cracking catalysts.

    摘要翻译: 在流化床中再生含有焦炭的催化剂的方法和装置。 催化剂和部分再生烟雾从再生器(1)的致密床中抽出,并通过重力引入外部交换器,在连接点处在再生器的致密床层的下方。 换热器(7)的下部在连接点以下进行热交换。 从交换器的下端到连接点的上方,产生密集区域,其高度基本上建立在再生器中的致密床的高度处,以及用于 再生气体和流化气体,适量。 气体和烟雾通过导管(17)在再生器的稀释流化相(18)中除去,同时催化剂通过单独的导管(25)再循环到再生器的致密床中,其中流化空气循环。 应用于流化床中裂化催化剂的再生。

    Heat exchange apparatus for solid particles for double regeneration in
catalytic cracking
    4.
    发明授权
    Heat exchange apparatus for solid particles for double regeneration in catalytic cracking 失效
    用于催化裂化双重再生的固体颗粒热交换装置

    公开(公告)号:US5686049A

    公开(公告)日:1997-11-11

    申请号:US539667

    申请日:1995-10-05

    CPC分类号: C10G11/182

    摘要: A catalyst, e.g., a cracking catalyst, and a part of the regeneration fumes are drawn off from the dense catalytic bed of a second regenerator (9) and are introduced by force of gravity into an external exchanger (21) at a junction point beneath the level of the dense bed of the second regenerator. The heat exchange takes place in the bottom part of the exchanger below the junction point. Between the bottom end of the exchanger and the region above the junction point a dense bed zone is formed at a level which is substantially at the height of the dense bed in the regenerator and a discharge zone (27), of suitable size, for the regeneration gases and fluidization gas. The gases and fumes from the exchanger are removed in the diluted fluidized phase from the second regenerator through a conduit (28), while the catalyst is recycled into the bed of the first regenerator through a conduit (34).

    摘要翻译: 催化剂,例如裂化催化剂和一部分再生烟雾从第二再生器(9)的致密催化床排出,并通过重力作用引入到外部交换器(21)内的连接点 第二再生器的致密层的水平。 热交换发生在交换器底部的交汇点下方。 在交换器的底端和接合点之上的区域之间,致密的床区形成在基本上位于再生器中的致密床的高度处的水平面和适当尺寸的排放区(27),用于 再生气体和流化气体。 来自交换器的气体和烟气在稀释的流化相中通过导管(28)从第二再生器除去,同时催化剂通过导管(34)再循环到第一再生器的床中。

    Method and device for descending catalytic cracking by injecting
feedstock at an adequate angle on a conditioned catalyst
    8.
    发明授权
    Method and device for descending catalytic cracking by injecting feedstock at an adequate angle on a conditioned catalyst 有权
    通过在调节催化剂上以足够角度注入原料来降低催化裂化的方法和装置

    公开(公告)号:US6099720A

    公开(公告)日:2000-08-08

    申请号:US77007

    申请日:1998-08-19

    CPC分类号: C10G11/187 C10G11/18

    摘要: A process is described for catalytic cracking of a petroleum feed in which a catalyst from a regeneration zone 4 is caused to flow in a dense fluidized bed conditioning zone 2 upstream of an injection zone 10, the fluidization rate being 0.1 to 30 cm/s. The throughput of catalyst into injection zone 10 is regulated by a constriction means 11. The hydrocarbon feed 12 is injected below the constriction means and flows counter-current to the direction of flow of the shaped catalyst flow. The hydrocarbon feed 12 is injected at a set injection angle depending on the movement of the feed and the catalyst.

    摘要翻译: PCT No.PCT / FR97 / 01630 Sec。 371日期1998年8月19日 102(e)1998年8月19日PCT PCT 1997年9月16日PCT公布。 出版物WO98 / 12280 PCT 日期1998年3月26日描述了一种用于催化裂化石油进料的方法,其中来自再生区4的催化剂在注入区10的上游的致密流化床调节区2中流动,流化速率为0.1至 30厘米/秒。 催化剂进入注入区10的通量由收缩装置11调节。烃进料12被注入到收缩装置的下面,并与成形催化剂流的流动方向相反地流动。 根据进料和催化剂的运动,烃进料12以设定的喷射角度注入。