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134 条记录 (耗时 0.036 秒)

    Method for reducing chloride emissions from a moving bed catalyst regeneration process
    41.
    发明授权
    Method for reducing chloride emissions from a moving bed catalyst regeneration process 失效

    公开(公告)号：US6034018A

    公开(公告)日：2000-03-07

    申请号：US743895

    申请日：1996-11-06

    申请人： Paul A. Sechrist ,  Delmar W. Robinson

    发明人： Paul A. Sechrist ,  Delmar W. Robinson

    IPC分类号： B01D53/68 ,  B01J38/10 ,  B01J38/42 ,  B01J38/44 ,  C10G35/06 ,  B01J20/34

    CPC分类号： B01J38/42 ,  B01D53/685 ,  B01J38/10 ,  B01J38/44 ,  C10G35/06 ,  B01D2259/40

    摘要： A method is disclosed for decreasing the emissions of chlorine-containing species from a moving bed process for regenerating spent catalyst particles with a recycle gas stream. A recycle gas stream contacts spent catalyst particles at regeneration conditions, thereby producing a flue gas stream. The flue gas stream which contains chlorine-containing species contacts spent catalyst particles at sorption conditions. The spent catalyst particles sorb the chlorine-containing species from the flue gas stream, thereby producing the recycle gas stream. A portion of the recycle gas stream is vented from the process. This method captures and returns to the process the chlorine-containing species that would be lost from the process and that would need to be replaced by the injection of make-up chlorine-containing species. This method results in a significant savings in capital and operating costs of the process. This method is adaptable to many processes for the catalytic conversion of hydrocarbons in which deactivated catalyst particles are regenerated in a moving bed.

    Method for reducing chloride emissions from a catalyst regeneration process
    42.
    发明授权
    Method for reducing chloride emissions from a catalyst regeneration process 失效
    从催化剂再生过程中减少氯化物排放的方法

    公开(公告)号：US5837636A

    公开(公告)日：1998-11-17

    申请号：US724652

    申请日：1996-10-03

    申请人： Paul A. Sechrist ,  Delmar W. Robinson

    发明人： Paul A. Sechrist ,  Delmar W. Robinson

    IPC分类号： B01D53/68 ,  B01J38/10 ,  B01J38/42 ,  B01J38/44 ,  C10G35/06 ,  B01J20/34

    CPC分类号： B01J38/42 ,  B01D53/685 ,  B01J38/10 ,  B01J38/44 ,  C10G35/06 ,  B01D2259/40

    摘要： A method is disclosed for decreasing the emissions of chlorine-containing species from a process for contacting catalyst particles with a recycle stream containing chlorine-containing species. Prior to contacting the catalyst particles with the recycle gas, an effluent stream that contains chlorine-containing species contacts the catalyst particles at sorption conditions. The catalyst particles sorb the chlorine-containing species from the effluent stream. This method captures and returns to the process the chlorine-containing species that would be lost from the process and that would need to be replaced by the injection of make-up chlorine-containing species. This method results in a significant savings in capital and operating costs of the process. This method is adaptable to many processes for the catalytic conversion of hydrocarbons in which deactivated catalyst particles are regenerated.

    摘要翻译： 公开了一种用于使催化剂颗粒与含氯物质的再循环流接触的方法来减少含氯物质的排放的方法。 在使催化剂颗粒与循环气体接触之前，含有含氯物质的流出物流在吸附条件下与催化剂颗粒接触。 催化剂颗粒从流出物流中吸附含氯物质。 该方法捕获并返回过程中将含有的含氯物质将从该过程中丢失，并需要通过注入含氯含量物质来代替。 这种方法可以大大节省资金和运营成本。 该方法适用于催化转化烃类的许多方法，其中失活的催化剂颗粒被再生。

    Catalytic reforming process with sulfur arrest
    44.
    发明授权
    Catalytic reforming process with sulfur arrest 失效
    催化重整过程与硫磺停止

    公开(公告)号：US5614082A

    公开(公告)日：1997-03-25

    申请号：US490037

    申请日：1995-06-13

    申请人： Michael B. Russ ,  Paul A. Sechrist

    发明人： Michael B. Russ ,  Paul A. Sechrist

    IPC分类号： B01J23/64 ,  B01J23/656 ,  B01J29/62 ,  B01J29/64 ,  B01J29/74 ,  C10G35/06 ,  C10G35/095

    CPC分类号： C10G35/095 ,  B01J29/62 ,  B01J2229/26 ,  B01J2229/42

    摘要： A catalyst system comprises a physical mixture of a conversion catalyst and a sulfur sorbent to accommodate small quantities of sulfur from a hydrocarbon feedstock. Preferably, the physical mixture comprises a sulfur-sensitive reforming catalyst protected from sulfur deactivation by a manganese-oxide catalyst. The invention shows substantial benefits over prior-art processes in catalyst utilization.

    摘要翻译： 催化剂体系包括转化催化剂和硫吸附剂的物理混合物以适应来自烃原料的少量硫。 优选地，物理混合物包含通过氧化锰催化剂保护硫失活的硫敏感的重整催化剂。 本发明显示出相对于现有技术中催化剂利用过程的优点。

    Method for changing particulate transport rates between zones
    47.
    发明授权
    Method for changing particulate transport rates between zones 失效
    改变区域之间颗粒运输速率的方法

    公开(公告)号：US5500110A

    公开(公告)日：1996-03-19

    申请号：US239003

    申请日：1994-05-06

    申请人： Paul A. Sechrist ,  Roger R. Lawrence ,  Frank T. Micklich ,  Larry D. Richardson ,  David M. Kazell

    发明人： Paul A. Sechrist ,  Roger R. Lawrence ,  Frank T. Micklich ,  Larry D. Richardson ,  David M. Kazell

    IPC分类号： B01J4/00 ,  B01J8/00 ,  C10G35/24 ,  C10G35/10

    CPC分类号： C10G35/24 ,  B01J8/0015 ,  Y10S208/01

    摘要： A controlled method of changing the transport rate of particles between two zones is disclosed. Changes are made in a computed value of the pressure difference of the conduit between the two zones through which the particles are transported. The changes are of a predetermined magnitude and are performed at predetermined time intervals, until the desired final value of the pressure difference is reached. The method minimizes fluctuations in the pressures of the two zones without over-sized vessels or additional equipment that would otherwise be needed to accommodate pressure changes. This results in a savings in construction costs. This invention is adaptable to a multitude of processes for the catalytic conversion of hydrocarbons in which deactivated catalyst particles are regenerated.

    摘要翻译： 公开了改变两个区域之间的颗粒传输速率的受控方法。 在输送颗粒的两个区域之间的管道的压力差的计算值中进行改变。 这些变化是预定的大小并且以预定的时间间隔执行，直到达到期望的最终的压差值。 该方法使两个区域的压力波动最小化，而不需要过大尺寸的容器或额外的设备来适应压力变化。 这样可以节省建筑成本。 本发明适用于催化转化烃的多种方法，其中失活的催化剂颗粒被再生。

    Catalyst regeneration apparatus with radial flow distribution
    48.
    发明授权
    Catalyst regeneration apparatus with radial flow distribution 失效
    具有径向流量分布的催化剂再生装置

    公开(公告)号：US5277880A

    公开(公告)日：1994-01-11

    申请号：US826498

    申请日：1992-01-27

    申请人： Paul A. Sechrist ,  William J. Koves

    发明人： Paul A. Sechrist ,  William J. Koves

    IPC分类号： B01J8/12 ,  B01J38/32 ,  B01J38/40 ,  C10G45/12

    CPC分类号： B01J38/40 ,  B01J38/32 ,  B01J8/12 ,  C10G45/12

    摘要： Apparatus for regenerating spent hydrocarbon conversion catalyst. Catalyst particles in a vertically-elongated movable tapered bed are contacted with a hot oxygen-containing gas stream in order to remove, by means of combustion, coke which accumulated on the catalyst particles while they were used in a hydrocarbon conversion zone. Catalyst moves downward under the influence of gravity. The catalyst bed is tapered such that the thickness of the bed, in a dimension which is transverse to the direction of catalyst movement, varies from a minimum at the top of the tapered bed to a maximum at the bottom of the tapered bed. Gas passes through the tapered bed in a direction which is substantially transverse to the direction of catalyst movement. Substantially, all of the catalyst in the bed is in contact with the flowing gas. The variation in bed thickness causes a varying gas flow rate through the bed, from a maximum flow rate at the top of the tapered bed to a minimum flow rate at the bottom of the tapered bed and reduces the time that catalyst is exposed to high temperature gases. This flow pattern results in the delivery of oxygen in a manner which more closely matches the oxygen requirement for combustion at each point in the tapered bed. Advantages of the invention include increased coke burning capacity and longer catalyst life. Catalytic reforming is an example of a hydrocarbon conversion process in which the invention may be advantageously employed.

    摘要翻译： 废碳氢转化催化剂再生设备。 在垂直细长的可移动锥形床中的催化剂颗粒与含热氧气流接触，以便通过燃烧除去在烃转化区中使用时积聚在催化剂颗粒上的焦炭。 催化剂在重力的作用下向下移动。 催化剂床是锥形的，使得床的厚度在垂直于催化剂运动方向的尺寸上从锥形床顶部的最小值到锥形床底部的最大值。 气体沿着基本上横向于催化剂运动方向的方向通过锥形床。 基本上，床中的所有催化剂与流动的气体接触。 床厚度的变化导致通过床的不同气体流速，从锥形床顶部的最大流速到锥形床底部的最小流速，并减少催化剂暴露于高温的时间 气体。 该流动模式导致氧气的传送方式与锥形床中的每个点处的燃烧氧需求更接近。 本发明的优点包括增加焦炭燃烧能力和更长的催化剂寿命。 催化重整是可以有利地使用本发明的烃转化方法的实例。

    Regeneration method with reduced catalyst heat exposure
    49.
    发明授权
    Regeneration method with reduced catalyst heat exposure 失效
    减少催化剂热暴露的再生方法

    公开(公告)号：US4859643A

    公开(公告)日：1989-08-22

    申请号：US192800

    申请日：1988-05-11

    申请人： Paul A. Sechrist ,  WIlliam J. Koves

    发明人： Paul A. Sechrist ,  WIlliam J. Koves

    IPC分类号： B01J38/18 ,  B01J20060101 ,  B01J8/12 ,  B01J23/96 ,  B01J38/24 ,  B01J38/26 ,  B01J38/42 ,  C10G20060101 ,  C10G35/00 ,  C10G35/12

    CPC分类号： B01J23/96 ,  B01J38/24 ,  B01J8/125 ,  C10G35/12

    摘要： A method for regenerating coke-contaminated catalyst particles achieves better utilization of oxygen and minimizes surface area loss of the catalyst by confining particles in the combustion section of a regeneration zone to a tapered bed configuration. In this method, catalyst particles move through the regeneration zone in continuous or semi-continuous flow and are formed into a vertically elongated bed of particles in the regeneration zone. An oxygen-containing gas is passed through the particle bed in a transverse direction and initiates combustion of the coke deposits along a burn front that extends diagonally through the catalyst bed from the inlet surface of the bed to the outlet surface of the bed. The catalyst bed is tapered to reduce the volume of catalyst particles behind the burn wave, with respect to gas flow through the bed, thereby increasing the gas flow through the upper portion of the bed and removing catalyst that would be exposed to high temperature flue gas flowing across the bed from the burn front. The method of this invention can confine catalyst particles to a bed having a continuous taper or the thickness of the bed may be varied by confining the catalyst in discrete bed portions that increase progressively down the length of the bed. This method of regeneration can also include steps for halogenation and drying of the catalyst particles. A particularly useful application of this invention is in reforming processes.

    摘要翻译： 用于再生焦炭污染的催化剂颗粒的方法通过将再生区域的燃烧部分中的颗粒限制在锥形床构型上，可以更好地利用氧气并使催化剂的表面积损失最小化。 在该方法中，催化剂颗粒以连续或半连续的流动方式移动通过再生区，并且在再生区域中形成为垂直细长的颗粒床。 含氧气体沿横向通过颗粒床，并沿着沿着床的入口表面对角延伸穿过催化剂床的燃烧前沿引发焦炭沉积物的燃烧，从床的入口表面到床的出口表面。 催化剂床是锥形的，以减少燃烧波后面的催化剂颗粒的体积，相对于通过床的气体流动，从而增加通过床的上部的气流并除去将暴露于高温烟道气的催化剂 从烧伤前沿流过床。 本发明的方法可以将催化剂颗粒限制在具有连续锥度的床上，或者床的厚度可以通过将催化剂限制在沿床的长度逐渐增加的离散床部分中来改变。 这种再生方法还可以包括催化剂颗粒的卤化和干燥步骤。 本发明的特别有用的应用是重整过程。